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Infineon Technologies CY7C1021BNL-15VXC — Memory (DRAM / SRAM / Flash / EEPROM)

Infineon CY7C1021BNL-15VXC 1Mbit Async SRAM, 15 ns

MPNCY7C1021BNL-15VXC
Obsolete

Infineon CY7C1021BNL-15VXC asynchronous SRAM, 1 Mbit (64K x 16), 15 ns access time, parallel interface, 4.5 V to 5.5 V supply, 44-SOJ, commercial temperature 0°C to 70°C.

$1.9974Ref. price · indicative, final on quote
Infineon Technologies CY7C1021BNL-15VXC datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

CY7C1021BNL-15VXC specifications
ParameterValue
Memory typeVolatile
MountingSurface Mount
Supply voltage4.5V ~ 5.5V
Memory interfaceParallel
Operating temperature0°C ~ 70°C (TA)
PackageTube
TechnologySRAM - Asynchronous
Access time15 ns
Memory size1Mbit
Memory formatSRAM
Case44-BSOJ (0.400\", 10.16mm Width)
Memory organization64K x 16
Write cycle time - word, page15ns

Product details

The CY7C1021BNL-15VXC is a 1 Mbit asynchronous SRAM organized as 64K x 16 bits. Its 15 ns access time and 15 ns write cycle time are the key timing parameters.

5 V supply and 44-SOJ footprint — design-in constraints

If your board uses a 3.3 V or 1.8 V core, you will need a level translator on the address/data lines — or pick a 3.3 V SRAM in the same family. The 44-SOJ package (JEDEC MO-119, 400 mil body width) is a surface-mount, J-lead outline that takes up about 10.16 mm x 27.94 mm of board area. It is not pin-compatible with the wider 44-pin TSOP-II (400 mil) used by many 8 Mbit and larger SRAMs, so a board respin is required if you are migrating from a different footprint.

Infineon lists the CY7C1021BNL-15VXC as Obsolete.

Frequently asked questions

What is the replacement for CY7C1021BNL-15VXC?

Infineon does not list an official successor for the CY7C1021BNL-15VXC. For new designs, consider an active sibling in the same family (e.g., the -15VXI industrial temperature grade) or a pin-compatible 3.3 V asynchronous SRAM — but verify the supply voltage and timing compatibility against your memory bus.

What is the access time of CY7C1021BNL-15VXC?

The access time is 15 ns, which also applies to the write cycle time (word, page).