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Infineon Technologies CY62148ELL-55SXIT — Memory (DRAM / SRAM / Flash / EEPROM)

CY62148ELL-55SXIT SRAM, 4Mbit Async, 55ns, 5V, 32-SOIC

MPNCY62148ELL-55SXIT
End of Life

Infineon (Cypress) MoBL® CY62148ELL-55SXIT, 4Mbit asynchronous SRAM, 512K x 8, 55 ns access time, 4.5V-5.5V supply, -40°C to 85°C, 32-SOIC wide-body, Tape & Reel.

$8.52Ref. price · indicative, final on quote
Infineon Technologies CY62148ELL-55SXIT datasheet (PDF)
Packaging32-SOIC (0.445", 11.30mm Width)
RoHSROHS3 Compliant
SeriesMoBL®
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

CY62148ELL-55SXIT specifications
ParameterValue
SeriesMoBL®
Memory typeVolatile
MountingSurface Mount
Voltage4.5V ~ 5.5V
Memory interfaceParallel
Operating temperature-40°C ~ 85°C (TA)
PackageTape & Reel (TR); Cut Tape (CT)
TechnologySRAM - Asynchronous
Access time55 ns
Memory size4Mbit
Memory formatSRAM
Case32-SOIC (0.445\", 11.30mm Width)
Memory organization512K x 8
Write cycle time - word, page55ns

Product details

Because this is an asynchronous SRAM, there is no clock to synchronise — the controller strobes the chip enable and output enable directly. That simplifies the interface but puts the timing burden on the controller's address-to-data valid window.

It is not qualified for automotive under-hood (AEC-Q100) or extended industrial beyond 85°C, but the industrial range covers most commercial and light-industrial use cases.

Package and footprint — 32-SOIC wide-body

The 32-SOIC package has a body width of 0.445 inches (11.30 mm) — the wide-body variant.

The part is actively specified into new designs where a 5V, 55 ns async SRAM with industrial temperature range is required.

Frequently asked questions

What is the access time of CY62148ELL-55SXIT?

The access time is 55 ns for both read and write cycles. That is the time from address valid to data valid on reads, and the minimum write pulse width on writes.

Can CY62148ELL-55SXIT replace CY62148ELL-55SXI?

The CY62148ELL-55SXI is the tube-packaged version of the same die. The -55SXIT is Tape & Reel. Electrically and functionally they are identical — same 55 ns access time, same 5V supply, same industrial temp range, same 32-SOIC package. The only difference is the shipping medium: tube vs Tape & Reel. Yes, it is a direct replacement for the -55SXI in the same socket.

Can I use CY62148ELL-55SXIT in a 3.3V system?

No. The supply voltage range is 4.5V to 5.5V. Applying 3.3V will not meet the minimum operating voltage, and the memory will not function. You need a 3.3V-rated SRAM such as the CY7C1049G30-10VXIT (2.2V supply) or a 3.3V variant in the MoBL® family.