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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.

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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 4342 of 5325
Part NumberCategoryDescriptionPackageStockPriceStatus
QS74FCT573CTZBuffers, Drivers, Receivers & TransceiversThe QS74FCT573CTZ is a transceiver 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 motor control, LED lighting, and display backlight applications, the QS74FCT573CTZ is currently in active production through Rochester Electronics's standard distribution channels.1,708 In Stock$3.78ACTIVERFQ
QS74FCT573TSOXBuffers, Drivers, Receivers & TransceiversThe QS74FCT573TSOX is a transceiver 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 motor control, LED lighting, and display backlight applications, the QS74FCT573TSOX is currently in active production through Rochester Electronics's standard distribution channels.9,000 In Stock$1.19ACTIVERFQ
QS74FCT573TZBuffers, Drivers, Receivers & TransceiversThe QS74FCT573TZ is a transceiver 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 motor control, LED lighting, and display backlight applications, the QS74FCT573TZ is currently in active production through Rochester Electronics's standard distribution channels.3,234 In Stock$1.31ACTIVERFQ
QS74FCT574CTS0Specialized ICsThe QS74FCT574CTS0 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 QS74FCT574CTS0 is currently in active production through Rochester Electronics's standard distribution channels.1,226 In StockRFQACTIVERFQ
QS74FCT574CTSOBuffers, Drivers, Receivers & TransceiversThe QS74FCT574CTSO is a transceiver IC manufactured by Rochester Electronics. Technical highlights include 5V supply voltage and 0°C ~ 70°C operating temperature; design review should confirm SPI, I2C, UART, CAN bus, USB, or Ethernet interface requirements, signal integrity, package fit, and operating temperature limits. This Surface Mount component is supplied in a standard package and is rated for operation across 0°C ~ 70°C. Designed for motor control, LED lighting, and display backlight applications, the QS74FCT574CTSO is no longer produced by Rochester Electronics; FPGACenter maintains verified stock sourced through certified supply chain partners.RFQ for sourcing$1.75OBSOLETERFQ
QS74FCT574CTZBuffers, Drivers, Receivers & TransceiversThe QS74FCT574CTZ is a transceiver 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 motor control, LED lighting, and display backlight applications, the QS74FCT574CTZ is currently in active production through Rochester Electronics's standard distribution channels.1,604 In Stock$2.21ACTIVERFQ
QS74FCT574TSOBuffers, Drivers, Receivers & TransceiversThe QS74FCT574TSO is a transceiver IC manufactured by Rochester Electronics. Technical highlights include 5V supply voltage and -40°C ~ 85°C operating temperature; design review should confirm SPI, I2C, UART, CAN bus, USB, or Ethernet interface requirements, signal integrity, package fit, and operating temperature limits. This Surface Mount component is supplied in a standard package and is rated for operation across -40°C ~ 85°C. Designed for motor control, LED lighting, and display backlight applications, the QS74FCT574TSO is no longer produced by Rochester Electronics; FPGACenter maintains verified stock sourced through certified supply chain partners.RFQ for sourcing$0.4388OBSOLETERFQ
QS74FCT574TZBuffers, Drivers, Receivers & TransceiversThe QS74FCT574TZ is a transceiver IC manufactured by Rochester Electronics. Technical highlights include 5V supply voltage and 0°C ~ 70°C operating temperature; design review should confirm SPI, I2C, UART, CAN bus, USB, or Ethernet interface requirements, signal integrity, package fit, and operating temperature limits. This Through Hole component is supplied in a standard package and is rated for operation across 0°C ~ 70°C. Designed for motor control, LED lighting, and display backlight applications, the QS74FCT574TZ is no longer produced by Rochester Electronics; FPGACenter maintains verified stock sourced through certified supply chain partners.RFQ for sourcing$1.83OBSOLETERFQ
QS74FCT640ATSOXBuffers, Drivers, Receivers & TransceiversThe QS74FCT640ATSOX is a transceiver 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 motor control, LED lighting, and display backlight applications, the QS74FCT640ATSOX is currently in active production through Rochester Electronics's standard distribution channels.6,000 In Stock$1.44ACTIVERFQ
QS74FCT640CTS0Buffers, Drivers, Receivers & TransceiversThe QS74FCT640CTS0 is a transceiver 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 motor control, LED lighting, and display backlight applications, the QS74FCT640CTS0 is currently in active production through Rochester Electronics's standard distribution channels.1,940 In Stock$1.90ACTIVERFQ
QS74FCT640CTSOBuffers, Drivers, Receivers & TransceiversThe QS74FCT640CTSO is a transceiver IC manufactured by Rochester Electronics. Technical highlights include 5V supply voltage and 0°C ~ 70°C operating temperature; design review should confirm SPI, I2C, UART, CAN bus, USB, or Ethernet interface requirements, signal integrity, package fit, and operating temperature limits. This Surface Mount component is supplied in a standard package and is rated for operation across 0°C ~ 70°C. Designed for motor control, LED lighting, and display backlight applications, the QS74FCT640CTSO is no longer produced by Rochester Electronics; FPGACenter maintains verified stock sourced through certified supply chain partners.RFQ for sourcing$1.90OBSOLETERFQ
QS74FCT646ATQBuffers, Drivers, Receivers & TransceiversThe QS74FCT646ATQ is a transceiver 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 motor control, LED lighting, and display backlight applications, the QS74FCT646ATQ is currently in active production through Rochester Electronics's standard distribution channels.8,370 In Stock$1.55ACTIVERFQ
QS74FCT646ATQXBuffers, Drivers, Receivers & TransceiversThe QS74FCT646ATQX is a transceiver 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 motor control, LED lighting, and display backlight applications, the QS74FCT646ATQX is currently in active production through Rochester Electronics's standard distribution channels.36,000 In Stock$0.9090ACTIVERFQ
QS74FCT646ATSOBuffers, Drivers, Receivers & TransceiversThe QS74FCT646ATSO is a transceiver 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 motor control, LED lighting, and display backlight applications, the QS74FCT646ATSO is currently in active production through Rochester Electronics's standard distribution channels.7,358 In Stock$2.27ACTIVERFQ
QS74FCT646ATSOXBuffers, Drivers, Receivers & TransceiversThe QS74FCT646ATSOX is a transceiver 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 motor control, LED lighting, and display backlight applications, the QS74FCT646ATSOX is currently in active production through Rochester Electronics's standard distribution channels.24,000 In Stock$1.83ACTIVERFQ
QS74FCT646CTPBuffers, Drivers, Receivers & TransceiversThe QS74FCT646CTP is a transceiver IC manufactured by Rochester Electronics. Technical highlights include 5V supply voltage and -40°C ~ 85°C operating temperature; design review should confirm SPI, I2C, UART, CAN bus, USB, or Ethernet interface requirements, signal integrity, package fit, and operating temperature limits. This Through Hole component is supplied in a standard package and is rated for operation across -40°C ~ 85°C. Designed for motor control, LED lighting, and display backlight applications, the QS74FCT646CTP is no longer produced by Rochester Electronics; FPGACenter maintains verified stock sourced through certified supply chain partners.RFQ for sourcing$1.93OBSOLETERFQ
QS74FCT646CTQBuffers, Drivers, Receivers & TransceiversThe QS74FCT646CTQ is a transceiver IC manufactured by Rochester Electronics. Technical highlights include 5V supply voltage and -40°C ~ 85°C operating temperature; design review should confirm SPI, I2C, UART, CAN bus, USB, or Ethernet interface requirements, signal integrity, package fit, and operating temperature limits. This Surface Mount component is supplied in a standard package and is rated for operation across -40°C ~ 85°C. Designed for motor control, LED lighting, and display backlight applications, the QS74FCT646CTQ is no longer produced by Rochester Electronics; FPGACenter maintains verified stock sourced through certified supply chain partners.RFQ for sourcing$2.69OBSOLETERFQ
QS74FCT646CTSOBuffers, Drivers, Receivers & TransceiversThe QS74FCT646CTSO is a transceiver IC manufactured by Rochester Electronics. Technical highlights include 5V supply voltage and 0°C ~ 70°C operating temperature; design review should confirm SPI, I2C, UART, CAN bus, USB, or Ethernet interface requirements, signal integrity, package fit, and operating temperature limits. This Surface Mount component is supplied in a standard package and is rated for operation across 0°C ~ 70°C. Designed for motor control, LED lighting, and display backlight applications, the QS74FCT646CTSO is no longer produced by Rochester Electronics; FPGACenter maintains verified stock sourced through certified supply chain partners.RFQ for sourcing$1.83OBSOLETERFQ
QS74FCT646DTQBuffers, Drivers, Receivers & TransceiversThe QS74FCT646DTQ is a transceiver 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 motor control, LED lighting, and display backlight applications, the QS74FCT646DTQ is currently in active production through Rochester Electronics's standard distribution channels.4,551 In Stock$1.89ACTIVERFQ
QS74FCT646TSOBuffers, Drivers, Receivers & TransceiversThe QS74FCT646TSO is a transceiver 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 motor control, LED lighting, and display backlight applications, the QS74FCT646TSO is currently in active production through Rochester Electronics's standard distribution channels.5,700 In Stock$1.20ACTIVERFQ

Frequently Asked Questions

Where can I buy Rochester Electronics electronic components?

FPGACenter lists 106,490 Rochester Electronics part numbers with 75,392 currently in stock. Submit an RFQ for availability, lead time, and 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 list 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.

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