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Infineon Technologies CY7C1021BL-15ZXI — Memory (DRAM / SRAM / Flash / EEPROM)

Infineon CY7C1021BL-15ZXI 1Mbit Async SRAM, 15 ns

MPNCY7C1021BL-15ZXI
Obsolete

Infineon CY7C1021BL-15ZXI, 1Mbit asynchronous SRAM, 64K x 16, 15 ns access time, 4.5V-5.5V supply, -40°C to 85°C, 44-TSOP II.

Infineon Technologies CY7C1021BL-15ZXI datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

CY7C1021BL-15ZXI specifications
ParameterValue
Memory typeVolatile
MountingSurface Mount
Supply voltage4.5V ~ 5.5V
Memory interfaceParallel
Operating temperature-40°C ~ 85°C (TA)
PackageTray
TechnologySRAM - Asynchronous
Access time15 ns
Memory size1Mbit
Memory formatSRAM
Case44-TSOP (0.400\", 10.16mm Width)
Memory organization64K x 16
Write cycle time - word, page15ns

Product details

64K x 16 asynchronous SRAM for 5V legacy buses

The Infineon CY7C1021BL-15ZXI is a 1 Mbit asynchronous SRAM organized as 64K words by 16 bits, accessed through a parallel interface. The 15 ns access time sets the bus timing window for a 16-bit host.

Obsolete — sourcing through independent channels

Infineon (formerly Cypress Semiconductor) has marked the CY7C1021BL-15ZXI as obsolete. No official successor part number is published in the lifecycle record. This part is no longer available through factory-authorized distribution and must be sourced through independent surplus and broker channels. No production-status claim is made beyond the obsolete listing.

Frequently asked questions

What is the memory size and organization of CY7C1021BL-15ZXI?

The CY7C1021BL-15ZXI is a 1 Mbit SRAM organized as 64K words by 16 bits.

What is the access time of CY7C1021BL-15ZXI?

The access time is 15 ns, which also matches the write cycle time for word and page operations.