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

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

MPNCY7C1399BN-15ZXI
Obsolete

Infineon (ex-Cypress) CY7C1399BN-15ZXI, 256Kbit asynchronous SRAM, 32K×8 organization, 15 ns access time, 3.3 V supply, parallel interface, 28-TSOP I package, -40°C to 85°C, tray, obsolete.

$1.3900Ref. price · indicative, final on quote
Infineon Technologies CY7C1399BN-15ZXI datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

CY7C1399BN-15ZXI specifications
ParameterValue
Memory typeVolatile
MountingSurface Mount
Supply voltage3V ~ 3.6V
Memory interfaceParallel
Operating temperature-40°C ~ 85°C (TA)
PackageTray
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

256Kbit asynchronous SRAM — 15 ns, 3.3 V, 28-TSOP I

The Infineon (ex-Cypress) CY7C1399BN-15ZXI is a 256Kbit asynchronous SRAM organized as 32K x 8, with a 15 ns access time and a 3V to 3.6V supply. It uses a parallel interface and comes in a 28-TSOP I package.

This part is marked obsolete by Infineon. No last-time-buy window or successor is listed in the official record.

Surface-mount 28-TSOP I, 0.465-inch body width, 11.80 mm. The footprint matches the JEDEC TSOP I standard; no special land pattern needed. Tray shipment — not tape-and-reel — so plan for pick-and-place feeder changeover if the line runs reels.

Frequently asked questions

What is the closest pin-compatible alternative to CY7C1399BN-15ZXI?

No official pin-compatible successor is listed by Infineon. For a drop-in replacement, review the CY7C1399BN family in the same 28-TSOP I footprint and 3.3 V supply; verify access time and temperature grade against your timing budget.

What is the operating temperature range of CY7C1399BN-15ZXI?

Rated for -40°C to 85°C, the industrial temperature grade, suitable for outdoor enclosures, factory floors, and unheated equipment rooms.