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Infineon Technologies CY7C1021BN-15VXC — Memory (DRAM / SRAM / Flash / EEPROM)

Infineon CY7C1021BN-15VXC 1Mbit SRAM, 15 ns, 44-SOJ

MPNCY7C1021BN-15VXC
Obsolete

Infineon CY7C1021BN-15VXC, 1Mbit asynchronous SRAM, 64K x 16 organization, 15 ns access time, 4.5 V to 5.5 V supply, 0°C to 70°C, 44-SOJ tube.

$1.9974Ref. price · indicative, final on quote
Infineon Technologies CY7C1021BN-15VXC datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

CY7C1021BN-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 Infineon CY7C1021BN-15VXC is a 1 Mbit asynchronous SRAM organized as 64K words by 16 bits. It operates from a 4.5 V to 5.5 V supply and delivers a 15 ns access time.

The 15 ns access time is the headline timing spec. It means the SRAM can complete a read or write cycle in 15 ns.

This part is marked obsolete. For BOM lines that need this exact order code, supply runs through the independent surplus and broker channel.

This limits the part to indoor, climate-controlled equipment.

The 44-SOJ package (0.400" body width, 10.16 mm) is a JEDEC-standard SOJ footprint. It is surface-mount, so no through-hole adapter needed.

Frequently asked questions

What is the replacement for CY7C1021BN-15VXC?

There is no official successor listed. The closest pin-compatible alternative within the same family is the CY7C1021BN-15VXI, which shares the same 44-SOJ package and 15 ns access time but is rated for the industrial temperature range (-40°C to 85°C). That variant is also obsolete, so both are sourced through surplus channels.

What is the difference between CY7C1021BN-15VXC and CY7C1021BN-15VXI?

The only difference is the temperature grade: the -15VXC is rated 0°C to 70°C (commercial), while the -15VXI is rated -40°C to 85°C (industrial). Both share the same 44-SOJ package, 15 ns access time, and 64K x 16 organization.