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Infineon Technologies CY7C1041D-10VXI — Memory (DRAM / SRAM / Flash / EEPROM)

CY7C1041D-10VXI SRAM 4Mbit, 10 ns, 44-SOJ, Obsolete

MPNCY7C1041D-10VXI
Obsolete

Infineon CY7C1041D-10VXI asynchronous SRAM, 4Mbit (256K x 16), 10 ns access time, parallel interface, 4.5V–5.5V supply, -40°C to 85°C, 44-SOJ package, Tube.

$3.4827Ref. price · indicative, final on quote
Infineon Technologies CY7C1041D-10VXI datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

CY7C1041D-10VXI specifications
ParameterValue
Memory typeVolatile
MountingSurface Mount
Supply voltage4.5V ~ 5.5V
Memory interfaceParallel
Operating temperature-40°C ~ 85°C (TA)
PackageTube
TechnologySRAM - Asynchronous
Access time10 ns
Memory size4Mbit
Memory formatSRAM
Case44-BSOJ (0.400\", 10.16mm Width)
Memory organization256K x 16
Write cycle time - word, page10ns

Product details

In a 5V system with a 50 MHz bus (20 ns cycle), this part leaves a 10 ns window for address decode, board trace delay, and setup time at the controller — tight but workable with careful layout. If your design needs margin, a 8 ns or 7 ns grade in the same family exists, but those are also obsolete and harder to find.

Package and footprint — 44-SOJ

The 44-SOJ package is a surface-mount, J-bend lead form with a 0.400" body width (10.16 mm). It is a through-hole-like footprint for soldering, common in 1990s–2000s SRAM designs. The supplier device package is 44-SOJ. If your board was laid out for a 44-pin TSOP-II, this part will not fit — verify the footprint before ordering. The shipping medium is Tube, not tape-and-reel, so plan for manual placement or tube-fed pick-and-place if your line supports it.

Frequently asked questions

Is CY7C1041D-10VXI obsolete?

Yes, the CY7C1041D-10VXI is listed as Obsolete. Infineon has discontinued production. It is not available through the factory channel.

What is the replacement for CY7C1041D-10VXI?

If you need a drop-in replacement, look for other 4Mbit (256K x 16) asynchronous SRAMs in a 44-SOJ package with a 10 ns or faster access time and 5V supply — for example, the ISSI IS61LV25616AL or Alliance Memory AS7C34096A families, though pin compatibility must be verified against your board layout. These are also aging parts; newer designs should consider a 3.3V TSOP or BGA SRAM with a voltage translator.

Where can I buy CY7C1041D-10VXI available via RFQ confirmation?

We source the CY7C1041D-10VXI through independent distribution and surplus channels. Because it is obsolete, stock is intermittent. Submit an RFQ — we will confirm current availability and market pricing at the time of your request. No stock count or lead-time number can be guaranteed on this page.