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Infineon Technologies CY7C1049G-10VXIT — Memory (DRAM / SRAM / Flash / EEPROM)

Infineon CY7C1049G-10VXIT 4Mbit Async SRAM, 10 ns, 36-SOJ

MPNCY7C1049G-10VXIT
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Infineon CY7C1049G-10VXIT, 4Mbit asynchronous SRAM, 512K x 8, 10 ns access time, 4.5V-5.5V supply, -40°C to 85°C, 36-SOJ, Tape & Reel.

$6.4575Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

CY7C1049G-10VXIT specifications
ParameterValue
Memory typeVolatile
MountingSurface Mount
Supply voltage4.5V ~ 5.5V
Memory interfaceParallel
Operating temperature-40°C~85°C(TA)
PackageTape & Reel (TR)
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 system running a 50 MHz bus clock (20 ns period), this leaves 10 ns of margin for address decoding, data setup, and board trace delays — enough for a single load but tight if multiple devices share the bus.

Housed in a 36-SOJ (Small Outline J-lead) package with a 10.16 mm body width, this surface-mount part requires a standard SOJ footprint. The J-lead form factor offers good solder-joint reliability under thermal cycling, though the package is less common than SOIC — verify stencil aperture and reflow profile with your assembly house before committing the BOM. Supplied in Tape & Reel, it is ready for automated pick-and-place in volume production.

Frequently asked questions

Is CY7C1049G-10VXIT obsolete or end-of-life?

Infineon continues to produce it.

Can CY7C1049G-10VXIT replace CY7C1049G-10VXI?

The CY7C1049G-10VXI is the tube-shipped variant; the -10VXIT is the Tape & Reel version for automated assembly.

Is CY7C1049G-10VXIT compatible with 3.3V logic?

No — its supply voltage range is 4.5V to 5.5V. Operating it at 3.3V is outside the rated limits and will not guarantee correct memory access. For 3.3V designs, look for a 3.3V-rated asynchronous SRAM in the same density and speed class.