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Infineon Technologies CY7C1399B-15VC — Memory (DRAM / SRAM / Flash / EEPROM)
Infineon Technologies

Cypress CY7C1399B-15VC 256Kbit Async SRAM, 15 ns, 28-SOJ

MPNCY7C1399B-15VC
Obsolete

Cypress CY7C1399B-15VC, 256Kbit (32K × 8) asynchronous SRAM, 15 ns access, 3.0–3.6 V supply, 0–70 °C, 28-SOJ surface-mount package, tube.

$1.0633Ref. price · indicative, final on quote
CY7C1399B-15VC datasheet
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

CY7C1399B-15VC Technical Specifications
ParameterValue
Memory typeVolatile
Mounting typeSurface Mount
Voltage3V ~ 3.6V
Memory interfaceParallel
Operating temperature0°C ~ 70°C (TA)
PackageTube
TechnologySRAM - Asynchronous
Access time15 ns
Memory size256Kbit
Memory formatSRAM
Case28-BSOJ (0.300\", 7.62mm Width)
Memory organization32K x 8
Write cycle time - word, page15ns

Product details

The Cypress CY7C1399B-15VC is a 256Kbit asynchronous SRAM organized as 32K words by 8 bits. It delivers a 15 ns access time from a 3.0 V to 3.6 V supply, and comes in a 28-SOJ surface-mount package. This part was designed for cache or buffer memory in embedded systems, telecom line cards, and networking equipment where a fast, byte-wide scratchpad was needed — think late-90s router control planes or printer controller buffers. The commercial temperature range (0°C to 70°C) limits it to indoor, climate-controlled environments.

15 ns access — what it means for the bus

A 15 ns access time means the SRAM can complete a read cycle in 15 ns from address valid to data valid. The write cycle time is also 15 ns.

Frequently asked questions

Who supplies CY7C1399B-15VC and how is it quoted?

We supply the CY7C1399B-15VC through independent distribution. It is quoted to order against an RFQ — availability and current pricing are confirmed at quote time, not listed here.

What is the closest pin-compatible alternative to CY7C1399B-15VC?

A pin-compatible alternative in the same family is the CY7C1399BN-15VC, which has the same 256Kbit organization, 15 ns access, and 28-SOJ footprint. Verify the exact pinout and timing with the datasheet before substituting.

What package does CY7C1399B-15VC come in?

The CY7C1399B-15VC comes in a 28-SOJ surface-mount package (0.300" body width, 7.62 mm), shipped in tubes.