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Infineon Technologies CY7C185-20PC — Memory (DRAM / SRAM / Flash / EEPROM)

CY7C185-20PC Cypress 64Kbit Asynchronous SRAM, 20 ns, DIP-28

MPNCY7C185-20PC
Obsolete

Cypress CY7C185-20PC, 64Kbit (8K x 8) Asynchronous SRAM, 20 ns access time, Parallel interface, 4.5V~5.5V supply, 0°C~70°C, 28-PDIP, Tube.

Infineon Technologies CY7C185-20PC datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

CY7C185-20PC specifications
ParameterValue
Memory typeVolatile
MountingThrough Hole
Supply voltage4.5V ~ 5.5V
Memory interfaceParallel
Operating temperature0°C~70°C(TA)
PackageTube
TechnologySRAM - Asynchronous
Access time20 ns
Memory size64Kbit
Memory formatSRAM
Case28-DIP (0.300\", 7.62mm)
Memory organization8K x 8
Write cycle time - word, page20ns

Product details

64Kbit asynchronous SRAM in a 28-pin DIP

The CY7C185-20PC is a 64Kbit asynchronous SRAM organized as 8K x 8 bits, with a 20 ns access time.

A 20 ns access time means the SRAM can complete a read cycle within 20 ns of the address being valid. This speed grade suits legacy 8-bit microcontrollers and DSPs with bus cycles in the 30–50 ns range, providing adequate setup margin. At 5V ±10% the part delivers consistent timing; derating at lower supply voltages is minimal for this family.

Obsolete — sourcing for production and repair

For new designs, a pin-compatible 64Kbit asynchronous SRAM in a 28-pin DIP from another manufacturer should be evaluated.

Frequently asked questions

Is CY7C185-20PC obsolete?

Yes, Cypress has listed the CY7C185-20PC as Obsolete. No direct replacement part number has been published.

What is the replacement for CY7C185-20PC?

No official replacement has been issued by Cypress. For new designs, consider a current-production 64Kbit asynchronous SRAM in a 28-pin DIP from another vendor.