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Infineon Technologies CY7C187-15PXC — Memory (DRAM / SRAM / Flash / EEPROM)

Cypress CY7C187-15PXC 64Kbit Asynchronous SRAM, 15 ns

MPNCY7C187-15PXC
Obsolete

Cypress CY7C187-15PXC, 64Kbit asynchronous SRAM, 15 ns access time, 64K × 1 organization, parallel interface, 4.5–5.5 V supply, 22-PDIP through-hole package, 0–70 °C operating temperature, tube packaging.

Infineon Technologies CY7C187-15PXC datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

CY7C187-15PXC specifications
ParameterValue
Memory typeVolatile
MountingThrough Hole
Voltage4.5V ~ 5.5V
Memory interfaceParallel
Operating temperature0°C~70°C(TA)
PackageTube
TechnologySRAM - Asynchronous
Access time15 ns
Memory size64Kbit
Memory formatSRAM
Case22-DIP (0.300\", 7.62mm)
Memory organization64K x 1
Write cycle time - word, page15ns

Product details

The Cypress CY7C187-15PXC is a 64Kbit asynchronous SRAM organized as 64K x 1 bit, with a 15 ns access time and a parallel interface. It operates from a 4.5 V to 5.5 V supply and is housed in a 22-pin PDIP through-hole package. This is a commercial-temperature (0 °C to 70 °C) part, intended for indoor, non-condensing environments — think legacy industrial controllers, test equipment, or retrofitting an old CPU board that needs a fast scratchpad. The 15 ns access time means it can keep up with a moderately fast bus without wait states, but the 64Kbit density limits it to small cache or status-flag storage, not a main memory array.

Through-hole PDIP — integration note

The 22-PDIP package is through-hole, 0.300-inch body width. It fits standard DIP sockets or can be soldered into plated-through holes.

Frequently asked questions

Where can I buy CY7C187-15PXC and get a price?

We source the CY7C187-15PXC to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time.

What is the closest pin-compatible alternative to CY7C187-15PXC?

No official pin-compatible second source or successor is listed for the CY7C187-15PXC. For a new design, consider a 64K x 1 asynchronous SRAM in a 22-DIP package with a 15 ns access time from a vendor still active in that density — many suppliers offer functionally equivalent parts, but pin compatibility should be verified against the datasheet.

What package does CY7C187-15PXC come in?

The CY7C187-15PXC is supplied in a 22-pin PDIP (0.300-inch body width) through-hole package, shipped in tube packaging.