Skip to main content
Log in
Infineon Technologies CY7C136-55JXCT — Memory (DRAM / SRAM / Flash / EEPROM)

Cypress CY7C136-55JXCT 16Kbit Dual-Port SRAM, 55 ns, Obsolete

MPNCY7C136-55JXCT
Obsolete

Cypress CY7C136-55JXCT, 16Kbit (2K x 8) dual-port asynchronous SRAM, 55 ns access time, 4.5V~5.5V supply, 52-PLCC (19.13x19.13 mm), 0°C~70°C, Tape & Reel.

Infineon Technologies CY7C136-55JXCT datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

CY7C136-55JXCT specifications
ParameterValue
Memory typeVolatile
MountingSurface Mount
Voltage4.5V ~ 5.5V
Memory interfaceParallel
Operating temperature0°C~70°C(TA)
PackageTape & Reel (TR)
TechnologySRAM - Dual Port, Asynchronous
Access time55 ns
Memory size16Kbit
Memory formatSRAM
Case52-LCC (J-Lead)
Memory organization2K x 8
Write cycle time - word, page55ns

Product details

16Kbit dual-port SRAM — what it does and where it fits

The CY7C136-55JXCT: 16Kbit dual-port asynchronous SRAM organized as 2K x 8 bits. Two independent ports allow simultaneous read or write from two bus masters.

55 ns access time — timing margin for the bus

55 ns access time and 55 ns write cycle time (word/page). Symmetrical read/write window simplifies timing closure in asynchronous designs.

Obsolete — last-time-buy reality

No official successor order code is published for this exact dual-port density and speed grade. The part is no longer manufactured and is not available through the factory channel. For a BOM line that requires this exact order code — for a legacy board repair, a machine-tool controller, or a telecom line card that cannot be redesigned — the only sourcing path is the independent surplus and broker market. No production-status claim is made beyond the Obsolete designation.

Commercial temperature grade — indoor use only

Not suitable for outdoor or unheated deployment without active thermal management.

Frequently asked questions

Is CY7C136-55JXCT obsolete?

Yes, Cypress has designated the CY7C136-55JXCT as Obsolete. It is no longer in production and is available only through surplus and independent-distribution channels.

What is the replacement for CY7C136-55JXCT?

Cypress has not published an official successor order code for this specific 16Kbit dual-port SRAM. For a form-fit-function substitute, you would need to evaluate a pin-compatible dual-port SRAM in a 52-PLCC package with 55 ns or faster access time from another vendor — no direct Cypress drop-in is listed.

What are the specifications of CY7C136-55JXCT?

16Kbit (2K x 8) dual-port asynchronous SRAM, 55 ns access time, 4.5V to 5.5V supply, parallel interface, 52-PLCC package, 0°C to 70°C operating temperature, Tape & Reel packaging.

Does CY7C136-55JXCT have a lead-free (RoHS) version?

The CY7C136-55JXCT is listed with Tape & Reel packaging, which typically indicates a lead-free / RoHS-compliant finish for this Cypress series. Confirm the specific date-code and finish code with the supplier at quote time.