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Infineon Technologies CY7C109B-15ZXCT — Memory (DRAM / SRAM / Flash / EEPROM)

Infineon CY7C109B-15ZXCT 1Mbit Async SRAM, 15 ns

MPNCY7C109B-15ZXCT
Obsolete

Infineon CY7C109B-15ZXCT, 1Mbit asynchronous SRAM, 15 ns access time, 128K x 8 organization, parallel interface, 4.5V-5.5V supply, 0°C-70°C, 32-TFSOP package, Tape & Reel.

Infineon Technologies CY7C109B-15ZXCT datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

CY7C109B-15ZXCT specifications
ParameterValue
Memory typeVolatile
MountingSurface Mount
Supply voltage4.5V ~ 5.5V
Memory interfaceParallel
Operating temperature0°C~70°C(TA)
PackageTape & Reel (TR)
TechnologySRAM - Asynchronous
Access time15 ns
Memory size1Mbit
Memory formatSRAM
Case32-TFSOP (0.724\", 18.40mm Width)
Memory organization128K x 8
Write cycle time - word, page15ns

Product details

1 Mbit asynchronous SRAM — 15 ns access, 128K x 8 organization

This part is housed in a 32-TFSOP surface-mount package, supplied on Tape & Reel.

For a system architect, this sets the read-cycle window when interfacing with a 5 V logic controller or FPGA. At 5 V nominal, the address-to-data valid delay is tight enough for most 50 MHz-class buses, but you should verify hold times against the memory controller's setup requirements.

Package and temperature — design-in constraints

The 32-TFSOP package (0.724" body width, 18.40 mm) is a surface-mount footprint common to many 1 Mbit asynchronous SRAMs. The Tape & Reel supply form suits automated pick-and-place assembly.

Frequently asked questions

What is the replacement for CY7C109B-15ZXCT?

Any replacement must be qualified against the 15 ns access time, 128K x 8 organization, and 32-TFSOP footprint.