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Infineon Technologies CY7C1399BN-15ZXIT — Memory (DRAM / SRAM / Flash / EEPROM)

Infineon CY7C1399BN-15ZXIT Async SRAM, 256Kbit, 15ns

MPNCY7C1399BN-15ZXIT
Obsolete

Infineon Technologies CY7C1399BN-15ZXIT asynchronous SRAM, 256Kbit, 32K x 8, 15 ns access time, 3V-3.6V supply, -40°C to 85°C, 28-TSSOP, Tape & Reel.

$3.0400Ref. price · indicative, final on quote
Infineon Technologies CY7C1399BN-15ZXIT datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

CY7C1399BN-15ZXIT specifications
ParameterValue
Memory typeVolatile
MountingSurface Mount
Supply voltage3V ~ 3.6V
Memory interfaceParallel
Operating temperature-40°C~85°C(TA)
PackageTape & Reel (TR); Cut Tape (CT)
TechnologySRAM - Asynchronous
Access time15 ns
Memory size256Kbit
Memory formatSRAM
Case28-TSSOP (0.465\", 11.80mm Width)
Memory organization32K x 8
Write cycle time - word, page15ns

Product details

15 ns access, 32K x 8 — obsolete but spec-mapped

The CY7C1399BN-15ZXIT is a 256Kbit asynchronous SRAM organized as 32K words by 8 bits, with a 15 ns access time that sets the read-cycle floor for the bus it serves. The parallel interface and 28-TSSOP (11.80 mm width) footprint match legacy controller buses and board layouts that cannot migrate to a serial memory without a board spin.

EOL — sourcing through independent channels

Available inventory is held by independent distributors and surplus channels. Each lot is date-code verified and traceable; quantities are confirmed at RFQ time, not before. For a BOM that still calls out this exact 32K x 8 asynchronous SRAM in the 28-TSOP I package, the only sourcing path is the open market — no pin-compatible drop-in replacement is published by the OEM.

Frequently asked questions

What is the access time and memory organization of this SRAM?

The CY7C1399BN-15ZXIT has a 15 ns access time and is organized 32K x 8 (256Kbit total). The 15 ns figure governs the minimum read-cycle time on the parallel bus.