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Infineon Technologies CY7C09289V-12AC — Memory (DRAM / SRAM / Flash / EEPROM)

Cypress CY7C09289V-12AC 1Mbit Dual-Port SRAM, 12 ns Access

MPNCY7C09289V-12AC
Obsolete

Cypress CY7C09289V-12AC, 1Mbit Dual-Port Synchronous SRAM, 12 ns access time, 50 MHz clock, 64K x 16 organization, 3V–3.6V supply, 100-TQFP, 0°C to 70°C.

Infineon Technologies CY7C09289V-12AC datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

CY7C09289V-12AC specifications
ParameterValue
Memory typeVolatile
MountingSurface Mount
Voltage3V ~ 3.6V
Frequency50 MHz
Memory interfaceParallel
Operating temperature0°C ~ 70°C (TA)
PackageBag
TechnologySRAM - Dual Port, Synchronous
Access time12 ns
Memory size1Mbit
Memory formatSRAM
Case100-LQFP
Memory organization64K x 16

Product details

The Cypress CY7C09289V-12AC is a 1Mbit synchronous dual-port SRAM organized as 64K x 16, with a 12 ns access time and a 50 MHz clock. It is designed for systems where two independent buses — typically a processor and a DMA controller, or two processors — need shared memory with separate address, data, and control ports. The synchronous interface simplifies timing closure in clocked designs, and the dual-port architecture eliminates the bus-turnaround dead cycles that shared-bus arbitrated SRAMs incur. Typical applications include network switch buffers, baseband processing, and industrial controller shared-memory blocks where moderate density and fast arbitration are required.

The 12 ns access time and 50 MHz clock support back-to-back read/write bursts without wait states.

The CY7C09289V-12AC is obsolete. No direct replacement is listed. We source this part to order against an RFQ.

Frequently asked questions

What is the replacement or equivalent for CY7C09289V-12AC?

No official replacement is listed. The closest pin-compatible alternative is the CY7C09289V-12AI, which shares the same 100-TQFP footprint, 1Mbit density, and 12 ns access time but is rated for industrial temperature (-40°C to 85°C). Verify the temperature range fits your application before substituting.

Does CY7C09289V-12AC have a datasheet with pinout and timing?

Yes, the Cypress datasheet for the CY7C09289V family covers the pinout, timing diagrams, and arbitration logic for the 12 ns access time and 50 MHz clock. The datasheet is available from Cypress or through standard distributor document archives.

Can CY7C09289V-12AC be used as a replacement for CY7C09289V-12AI?

Yes, the CY7C09289V-12AC can replace the CY7C09289V-12AI only if the operating environment stays within the commercial temperature range (0°C to 70°C). The -12AI is rated for -40°C to 85°C; substituting the -12AC into an industrial-temperature design risks out-of-spec operation.

What is the operating temperature range of CY7C09289V-12AC?

The CY7C09289V-12AC is rated for 0°C to 70°C (commercial temperature grade). It is not suitable for extended-temperature or outdoor environments.