Hard-to-find, EOL, and shortage parts24h target RFQ responseInspection, traceability, and alternate sourcing
R

Rochester Electronics

📍 Newburyport, Massachusetts, USA📅 Est. 1981🔗 Official Site →

Rochester Electronics is the world's largest authorized distributor of end-of-life (EOL) semiconductors, providing a continuous source of supply for critical applications. Rochester is authorized by over 70 semiconductor manufacturers to continue the supply of their discontinued products with full manufacturer quality and traceability.

106.490
Total Parts
75.392
In Stock
101
Categories
75.398
Active
30.906
EOL/Obsolete

Key Product Lines

End-of-Life SemiconductorsObsolete ComponentsLicensed ManufacturingLong-Term SupplyDrop-In ReplacementsMilitary/Aerospace Grade

✅ Why Source Rochester Electronics from FPGACenter

Rochester Electronics authorized parts available through FPGACenter. Military and aerospace obsolete components with full traceability.

✓ Originality review✓ No Minimum Order✓ Quality Inspection✓ Global Shipping

Rochester Electronics Product Categories

Microcontrollers (MCU) (9283)Op Amps & Instrumentation Amplifiers (6708)Specialized ICs (6550)Buffers, Drivers, Receivers & Transceivers (6085)Gates & Inverters (5995)Linear Regulators (LDO) (5541)Drivers, Receivers & Transceivers (5534)SRAM (4418)Supervisors & Reset ICs (4368)ADC - Analog to Digital Converters (3457)Signal Switches, MUX & Decoders (3324)DAC - Digital to Analog Converters (2917)Flip-Flops (2474)Analog Switches & Multiplexers (2152)DC-DC Switching Controllers (1924)DC-DC Switching Regulators (1829)Clock Generators, PLLs & Synthesizers (1550)DSP - Digital Signal Processors (1474)Voltage References (1430)Counters & Dividers (1410)Microprocessors (MPU) (1145)EEPROM (1096)Shift Registers (1011)Specialized Power Management (1007)General Memory ICs (993)Digital Potentiometers (984)Audio Amplifiers (948)Gate Drivers (899)Latches (899)FPGAs (783)Telecom ICs (779)FIFO Memory (747)Power Distribution Switches (653)Interface Controllers (651)Analog Comparators (636)PLDs - Programmable Logic Devices (604)Linear Regulator Controllers (581)AC-DC Converters & Offline Switchers (574)Special Purpose ICs (570)ADC/DAC - Special Purpose (555)CPLDs (540)LED Drivers (540)Motor Drivers & Controllers (534)Flash Memory (476)Translators & Level Shifters (467)Specialty Logic (448)Video Processing ICs (414)Clock Buffers & Drivers (407)Delay Lines (389)Battery Management ICs (372)Audio Special Purpose ICs (370)Video Amplifiers (365)Logic Comparators (306)Analog Switches - Special Purpose (301)Hot Swap Controllers (270)Display Drivers (268)Audio CODECs (251)Encoders, Decoders & Converters (245)Battery Chargers (243)Special Purpose Amplifiers (228)Real-Time Clocks (RTC) (218)UARTs (217)Programmable Timers & Oscillators (217)Active Filters (213)Multivibrators (207)PFC Controllers (194)Power Supply Controllers & Monitors (193)Full & Half-Bridge Drivers (178)Analog Multipliers & Dividers (177)I/O Expanders (175)ROM & NVRAM (171)Parity Generators & Checkers (170)Serializers & Deserializers (164)Sensor & Detector Interfaces (160)Application Specific Processors (155)Linear & Switching Controllers (142)Analog Front End (AFE) (135)Modems (128)Universal Bus Functions (121)EPROM (107)Lighting & Ballast Controllers (103)Thermal Management ICs (102)Signal Terminators (96)System On Chip (SoC) (91)Current Regulation & Management (84)Energy Metering ICs (72)RMS to DC Converters (60)Configuration PROMs for FPGAs (52)Touch Screen Controllers (51)Capacitive Touch Sensors (51)FRAM & MRAM (50)Laser Drivers (48)Signal Buffers, Repeaters & Splitters (47)PoE Controllers (39)V/F and F/V Converters (35)Direct Digital Synthesis (DDS) (32)DRAM & SDRAM (27)OR Controllers & Ideal Diodes (24)MCU, MPU & FPGA Modules (5)Voice Record & Playback (5)Interface Modules (2)

All Rochester Electronics Products

Page 1115 of 5325
Part NumberCategoryDescriptionPackageStockPriceStatus
AT87C58X2-3CSULMicrocontrollers (MCU)The AT87C58X2-3CSUL is a microcontroller manufactured by Rochester Electronics. Key technical specifications include 32KB (32K x 8) Flash memory, 256 x 8 RAM, 30/20MHz clock speed, and UART/USART connectivity; design review should also confirm GPIO, SPI, I2C, UART, ADC peripherals, clock speed, and Flash memory. This Through Hole component is supplied in a 40-DIP (0.600", 15.24mm) package and is rated for operation across -40°C ~ 85°C (TA). Designed for IoT endpoints, consumer electronics, and industrial automation applications, the AT87C58X2-3CSUL is no longer produced by Rochester Electronics; FPGACenter maintains verified stock sourced through certified supply chain partners.40-DIP (0.600", 15.24mm)RFQ for sourcing$7.64OBSOLETERFQ
AT87C58X2-3CSUMMicrocontrollers (MCU)The AT87C58X2-3CSUM is a microcontroller manufactured by Rochester Electronics. Key technical specifications include 32KB (32K x 8) Flash memory, 256 x 8 RAM, 40/20MHz clock speed, and UART/USART connectivity; design review should also confirm GPIO, SPI, I2C, UART, ADC peripherals, clock speed, and Flash memory. This Through Hole component is supplied in a 40-DIP (0.600", 15.24mm) package and is rated for operation across -40°C ~ 85°C (TA). Designed for IoT endpoints, consumer electronics, and industrial automation applications, the AT87C58X2-3CSUM is no longer produced by Rochester Electronics; FPGACenter maintains verified stock sourced through certified supply chain partners.40-DIP (0.600", 15.24mm)RFQ for sourcing$6.22OBSOLETERFQ
AT87C58X2-RLTULMicrocontrollers (MCU)The AT87C58X2-RLTUL is a microcontroller manufactured by Rochester Electronics. Key technical specifications include 32KB (32K x 8) Flash memory, 256 x 8 RAM, 30/20MHz clock speed, and UART/USART connectivity; design review should also confirm GPIO, SPI, I2C, UART, ADC peripherals, clock speed, and Flash memory. This Surface Mount component is supplied in a 44-LQFP package and is rated for operation across -40°C ~ 85°C (TA). Designed for IoT endpoints, consumer electronics, and industrial automation applications, the AT87C58X2-RLTUL is no longer produced by Rochester Electronics; FPGACenter maintains verified stock sourced through certified supply chain partners.44-LQFPRFQ for sourcingRFQOBSOLETERFQ
AT87C58X2-RLTUMMicrocontrollers (MCU)The AT87C58X2-RLTUM is a microcontroller manufactured by Rochester Electronics. Key technical specifications include 32KB (32K x 8) Flash memory, 256 x 8 RAM, 40/20MHz clock speed, and UART/USART connectivity; design review should also confirm GPIO, SPI, I2C, UART, ADC peripherals, clock speed, and Flash memory. This Surface Mount component is supplied in a 44-LQFP package and is rated for operation across -40°C ~ 85°C (TA). Designed for IoT endpoints, consumer electronics, and industrial automation applications, the AT87C58X2-RLTUM is no longer produced by Rochester Electronics; FPGACenter maintains verified stock sourced through certified supply chain partners.44-LQFPRFQ for sourcing$43.33OBSOLETERFQ
AT87C58X2-SLSULMicrocontrollers (MCU)The AT87C58X2-SLSUL is a microcontroller manufactured by Rochester Electronics. Key technical specifications include 32KB (32K x 8) Flash memory, 256 x 8 RAM, 30/20MHz clock speed, and UART/USART connectivity; design review should also confirm GPIO, SPI, I2C, UART, ADC peripherals, clock speed, and Flash memory. This Surface Mount component is supplied in a 44-LCC (J-Lead) package and is rated for operation across -40°C ~ 85°C (TA). Designed for IoT endpoints, consumer electronics, and industrial automation applications, the AT87C58X2-SLSUL is no longer produced by Rochester Electronics; FPGACenter maintains verified stock sourced through certified supply chain partners.44-LCC (J-Lead)RFQ for sourcing$44.51OBSOLETERFQ
AT87C58X2-SLSUMMicrocontrollers (MCU)The AT87C58X2-SLSUM is a microcontroller manufactured by Rochester Electronics. Key technical specifications include 32KB (32K x 8) Flash memory, 256 x 8 RAM, 40/20MHz clock speed, and UART/USART connectivity; design review should also confirm GPIO, SPI, I2C, UART, ADC peripherals, clock speed, and Flash memory. This Surface Mount component is supplied in a 44-LCC (J-Lead) package and is rated for operation across -40°C ~ 85°C (TA). Designed for IoT endpoints, consumer electronics, and industrial automation applications, the AT87C58X2-SLSUM is no longer produced by Rochester Electronics; FPGACenter maintains verified stock sourced through certified supply chain partners.44-LCC (J-Lead)RFQ for sourcing$3.74OBSOLETERFQ
AT88SC0204CA-SHSpecialized ICsThe AT88SC0204CA-SH is a specialized telecom IC manufactured by Rochester Electronics. Design review should confirm SPI, I2C, UART, CAN bus, USB, or Ethernet interface requirements, signal integrity, package fit, and operating temperature limits, plus genuine factory-marked silicon, original packaging, and full lot/date code traceability. This Surface Mount component is supplied in a 8-SOIC (0.154", 3.90mm Width) package suitable for both prototyping and production builds. Designed for industrial automation, consumer electronics, and telecommunications infrastructure applications, the AT88SC0204CA-SH is currently in active production through Rochester Electronics's standard distribution channels.8-SOIC (0.154", 3.90mm Width)1.583 In Stock$5.45ACTIVERFQ
AT88SC3216C-PUSpecialized ICsThe AT88SC3216C-PU is a specialized telecom IC manufactured by Rochester Electronics. Design review should confirm SPI, I2C, UART, CAN bus, USB, or Ethernet interface requirements, signal integrity, package fit, and operating temperature limits, plus genuine factory-marked silicon, original packaging, and full lot/date code traceability. This Through Hole component is supplied in a 8-DIP (0.300", 7.62mm) package suitable for both prototyping and production builds. Designed for industrial automation, consumer electronics, and telecommunications infrastructure applications, the AT88SC3216C-PU is currently in active production through Rochester Electronics's standard distribution channels.8-DIP (0.300", 7.62mm)1.196 In StockRFQACTIVERFQ
AT89C51-24JIMicrocontrollers (MCU)The AT89C51-24JI is a microcontroller manufactured by Rochester Electronics. Key technical specifications include 4KB (4K x 8) Flash memory, 128 x 8 RAM, 24MHz clock speed, and UART/USART connectivity; design review should also confirm GPIO, SPI, I2C, UART, ADC peripherals, clock speed, and Flash memory. This Surface Mount component is supplied in a 44-LCC (J-Lead) package and is rated for operation across -40°C ~ 85°C. Designed for IoT endpoints, consumer electronics, and industrial automation applications, the AT89C51-24JI is no longer produced by Rochester Electronics; FPGACenter maintains verified stock sourced through certified supply chain partners.44-LCC (J-Lead)RFQ for sourcing$4.52OBSOLETERFQ
AT89C51-24PCMicrocontrollers (MCU)The AT89C51-24PC is a microcontroller manufactured by Rochester Electronics. Key technical specifications include 4KB (4K x 8) Flash memory, 128 x 8 RAM, 24MHz clock speed, and UART/USART connectivity; design review should also confirm GPIO, SPI, I2C, UART, ADC peripherals, clock speed, and Flash memory. This Through Hole component is supplied in a 40-DIP (0.600", 15.24mm) package and is rated for operation across 0°C ~ 70°C (TA). Designed for IoT endpoints, consumer electronics, and industrial automation applications, the AT89C51-24PC is no longer produced by Rochester Electronics; FPGACenter maintains verified stock sourced through certified supply chain partners.40-DIP (0.600", 15.24mm)RFQ for sourcing$3.82OBSOLETERFQ
AT89C51-24PIMicrocontrollers (MCU)The AT89C51-24PI is a microcontroller manufactured by Rochester Electronics. Key technical specifications include 4KB (4K x 8) Flash memory, 128 x 8 RAM, 24MHz clock speed, and UART/USART connectivity; design review should also confirm GPIO, SPI, I2C, UART, ADC peripherals, clock speed, and Flash memory. This Through Hole component is supplied in a 40-DIP (0.600", 15.24mm) package and is rated for operation across -40°C ~ 85°C (TA). Designed for IoT endpoints, consumer electronics, and industrial automation applications, the AT89C51-24PI is no longer produced by Rochester Electronics; FPGACenter maintains verified stock sourced through certified supply chain partners.40-DIP (0.600", 15.24mm)RFQ for sourcing$3.48OBSOLETERFQ
AT89C5131A-PLTULMicrocontrollers (MCU)The AT89C5131A-PLTUL is a microcontroller manufactured by Rochester Electronics. Key technical specifications include 32KB (32K x 8) Flash memory, 1.25K x 8 RAM, 4K x 8 EEPROM, 48MHz clock speed, and I²C, SPI, UART/USART, USB connectivity; design review should also confirm GPIO, SPI, I2C, UART, ADC peripherals, clock speed, and Flash memory. This Surface Mount component is supplied in a 48-VFQFN Exposed Pad package and is rated for operation across -40°C ~ 85°C (TA). Designed for IoT endpoints, consumer electronics, and industrial automation applications, the AT89C5131A-PLTUL is currently in active production through Rochester Electronics's standard distribution channels.48-VFQFN Exposed Pad605 In Stock$13.88ACTIVERFQ
AT89C5131A-PURUMSpecialized ICsThe AT89C5131A-PURUM is a specialized telecom IC manufactured by Rochester Electronics. Design review should confirm SPI, I2C, UART, CAN bus, USB, or Ethernet interface requirements, signal integrity, package fit, and operating temperature limits, plus genuine factory-marked silicon, original packaging, and full lot/date code traceability. This - component is supplied in a standard package suitable for both prototyping and production builds. Designed for industrial automation, consumer electronics, and telecommunications infrastructure applications, the AT89C5131A-PURUM is currently in active production through Rochester Electronics's standard distribution channels.1.522 In Stock$5.23ACTIVERFQ
AT89C5131A-S3SULMicrocontrollers (MCU)The AT89C5131A-S3SUL is a microcontroller manufactured by Rochester Electronics. Key technical specifications include 32KB (32K x 8) Flash memory, 1.25K x 8 RAM, 4K x 8 EEPROM, 48MHz clock speed, and I²C, SPI, UART/USART, USB connectivity; design review should also confirm GPIO, SPI, I2C, UART, ADC peripherals, clock speed, and Flash memory. This Surface Mount component is supplied in a 52-LCC (J-Lead) package and is rated for operation across -40°C ~ 85°C (TA). Designed for IoT endpoints, consumer electronics, and industrial automation applications, the AT89C5131A-S3SUL is currently in active production through Rochester Electronics's standard distribution channels.52-LCC (J-Lead)662 In Stock$17.68ACTIVERFQ
AT89C5131ADZX-PUTUMMicrocontrollers (MCU)The AT89C5131ADZX-PUTUM is a microcontroller manufactured by Rochester Electronics. Key technical specifications include 32KB (32K x 8) Flash memory, 1.25K x 8 RAM, 4K x 8 EEPROM, 48MHz clock speed, and I²C, SPI, UART/USART, USB connectivity; design review should also confirm GPIO, SPI, I2C, UART, ADC peripherals, clock speed, and Flash memory. This Surface Mount component is supplied in a 32-VFQFN Exposed Pad package and is rated for operation across -40°C ~ 85°C (TA). Designed for IoT endpoints, consumer electronics, and industrial automation applications, the AT89C5131ADZX-PUTUM is currently in active production through Rochester Electronics's standard distribution channels.32-VFQFN Exposed Pad50.079 In Stock$0.4410ACTIVERFQ
AT89C51AC3-RLTUMMicrocontrollers (MCU)The AT89C51AC3-RLTUM is a microcontroller manufactured by Rochester Electronics. Key technical specifications include 64KB (64K x 8) Flash memory, 2.25K x 8 RAM, 2K x 8 EEPROM, 60MHz clock speed, and UART/USART connectivity; design review should also confirm GPIO, SPI, I2C, UART, ADC peripherals, clock speed, and Flash memory. This Surface Mount component is supplied in a 44-LQFP package and is rated for operation across -40°C ~ 85°C (TA). Designed for IoT endpoints, consumer electronics, and industrial automation applications, the AT89C51AC3-RLTUM is currently in active production through Rochester Electronics's standard distribution channels.44-LQFP1.700 In Stock$50.33ACTIVERFQ
AT89C51CC01CA-RLTUMMicrocontrollers (MCU)The AT89C51CC01CA-RLTUM is a microcontroller manufactured by Rochester Electronics. Key technical specifications include 32KB (32K x 8) Flash memory, 1.25K x 8 RAM, 2K x 8 EEPROM, 40MHz clock speed, and CANbus, UART/USART connectivity; design review should also confirm GPIO, SPI, I2C, UART, ADC peripherals, clock speed, and Flash memory. This Surface Mount component is supplied in a 44-LQFP package and is rated for operation across -40°C ~ 85°C (TA). Designed for IoT endpoints, consumer electronics, and industrial automation applications, the AT89C51CC01CA-RLTUM is currently in active production through Rochester Electronics's standard distribution channels.44-LQFP8.100 In Stock$8.44ACTIVERFQ
AT89C51CC01CU-SLSUMMicrocontrollers (MCU)The AT89C51CC01CU-SLSUM is a microcontroller manufactured by Rochester Electronics. Key technical specifications include 32KB (32K x 8) Flash memory, 1.25K x 8 RAM, 2K x 8 EEPROM, 40MHz clock speed, and CANbus, UART/USART connectivity; design review should also confirm GPIO, SPI, I2C, UART, ADC peripherals, clock speed, and Flash memory. This Surface Mount component is supplied in a 44-LCC (J-Lead) package and is rated for operation across -40°C ~ 85°C (TA). Designed for IoT endpoints, consumer electronics, and industrial automation applications, the AT89C51CC01CU-SLSUM is currently in active production through Rochester Electronics's standard distribution channels.44-LCC (J-Lead)1.501 In Stock$11.92ACTIVERFQ
AT89C51CC01UA-RLRUMMicrocontrollers (MCU)The AT89C51CC01UA-RLRUM is a microcontroller manufactured by Rochester Electronics. Key technical specifications include 32KB (32K x 8) Flash memory, 1.25K x 8 RAM, 2K x 8 EEPROM, 40MHz clock speed, and CANbus, UART/USART connectivity; design review should also confirm GPIO, SPI, I2C, UART, ADC peripherals, clock speed, and Flash memory. This Surface Mount component is supplied in a 44-LQFP package and is rated for operation across -40°C ~ 85°C (TA). Designed for IoT endpoints, consumer electronics, and industrial automation applications, the AT89C51CC01UA-RLRUM is currently in active production through Rochester Electronics's standard distribution channels.44-LQFP1.016 In Stock$14.18ACTIVERFQ
AT89C51CC03CA-RLTUMMicrocontrollers (MCU)The AT89C51CC03CA-RLTUM is a microcontroller manufactured by Rochester Electronics. Key technical specifications include 64KB (64K x 8) Flash memory, 2.25K x 8 RAM, 2K x 8 EEPROM, 40MHz clock speed, and CANbus, UART/USART connectivity; design review should also confirm GPIO, SPI, I2C, UART, ADC peripherals, clock speed, and Flash memory. This Surface Mount component is supplied in a 44-LQFP package and is rated for operation across -40°C ~ 85°C (TA). Designed for IoT endpoints, consumer electronics, and industrial automation applications, the AT89C51CC03CA-RLTUM is currently in active production through Rochester Electronics's standard distribution channels.44-LQFP4.800 In Stock$11.82ACTIVERFQ

Frequently Asked Questions

Where can I buy Rochester Electronics electronic components?

FPGACenter stocks 106.490 Rochester Electronics part numbers with 75.392 currently in stock. All parts are 100% original with full traceability. No minimum order quantity required. Submit an RFQ for competitive pricing.

Can I still get obsolete Rochester Electronics parts?

Yes. FPGACenter specializes in sourcing hard-to-find and obsolete components. We have 30.906 end-of-life/obsolete Rochester Electronics part numbers in our database, many available from verified stock or through our global sourcing network.

What types of Rochester Electronics products does FPGACenter carry?

We stock Rochester Electronics products across 101 categories including End-of-Life Semiconductors, Obsolete Components, Licensed Manufacturing, Long-Term Supply. Browse our full catalog or contact our sourcing team for any specific Rochester Electronics part number.

Need Rochester Electronics Components?

Submit an RFQ for competitive pricing on any Rochester Electronics part. No minimum order, fast global shipping.

Request QuoteContact Sales
Get Quote