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Infineon Technologies CY7C1049CV33-10VXA — Memory (DRAM / SRAM / Flash / EEPROM)

Cypress CY7C1049CV33-10VXA 4Mbit Async SRAM, 10 ns

MPNCY7C1049CV33-10VXA
Obsolete

Cypress CY7C1049CV33-10VXA, 4Mbit asynchronous SRAM, 512K x 8 organization, 10 ns access time, parallel interface, 3V to 3.6V supply, -40°C to 85°C industrial temperature, 36-SOJ surface-mount package.

Infineon Technologies CY7C1049CV33-10VXA datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

CY7C1049CV33-10VXA specifications
ParameterValue
Memory typeVolatile
MountingSurface Mount
Supply voltage3V ~ 3.6V
Memory interfaceParallel
Operating temperature-40°C~85°C(TA)
PackageTube
TechnologySRAM - Asynchronous
Access time10 ns
Memory size4Mbit
Memory formatSRAM
Case36-BSOJ (0.400\", 10.16mm Width)
Memory organization512K x 8
Write cycle time - word, page10ns

Product details

For a 50 MHz system the margin is comfortable. This is the spec that determines whether the part keeps up with a cacheless ARM7 or a CPLD-based state machine without wait states.

Cypress (now Infineon) no longer manufactures this part. No LTB window remains; the part is what it is on the open market.

The J-lead form factor is a legacy SOIC variant with a smaller footprint than DIP but still hand-solderable with care. Supply range of 3V to 3.6V aligns with 3.3V logic families; no level translation needed for a 3.3V bus.

Frequently asked questions

Is CY7C1049CV33-10VXA obsolete?

Yes, the CY7C1049CV33-10VXA is listed as Obsolete. Cypress (Infineon) no longer produces it. No official replacement part number has been designated.

What is the replacement for CY7C1049CV33-10VXA?

For a pin-compatible alternative in the same 512K x 8 asynchronous SRAM family, the CY7C1049CV33-10VI shares the same density, organization, access time, and supply voltage, though its package and temperature grade may differ — verify the full order code against your BOM.