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Renesas Electronics 71V3557S85PFGI — Memory (DRAM / SRAM / Flash / EEPROM)

71V3557S85PFGI SRAM 4.5Mbit, 8.5 ns, 100-TQFP

MPN71V3557S85PFGI
End of Life

Renesas 71V3557S85PFGI synchronous SRAM, ZBT (Zero Bus Turnaround), 4.5Mbit (128K x 36), 8.5 ns access time, 3.3V supply, -40°C to 85°C, 100-TQFP (14x14), Bulk.

$5.08Ref. price · indicative, final on quote
Packaging100-LQFP
StockIn Stock (23)
Lead timeIn Stock wk
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

71V3557S85PFGI Technical Specifications
ParameterValue
Memory typeVolatile
Mounting typeSurface Mount
Voltage3.135V ~ 3.465V
Memory interfaceParallel
Operating temperature-40°C ~ 85°C (TA)
PackageBulk
TechnologySRAM - Synchronous, SDR (ZBT)
Access time8.5 ns
Memory size4.5Mbit
Memory formatSRAM
Case100-LQFP
Memory organization128K x 36

Product details

Synchronous ZBT SRAM for high-throughput data buffers

The 71V3557S85PFGI is a 4.5 Mbit synchronous SRAM organized as 128K x 36 bits, using Zero Bus Turnaround (ZBT) architecture to eliminate dead cycles between read and write operations on a shared data bus. With an 8.5 ns access time and a parallel interface, it sustains back-to-back transactions at bus speeds that older pipelined SRAMs cannot match — critical for network packet buffers, cache controllers, and DSP scratchpads where every clock cycle carries data.

Supplied in Bulk (tray) — typical for prototype and low-to-mid volume production; for high-volume reels, check the alternate ordering code suffix.

Frequently asked questions

Where can I buy 71V3557S85PFGI and how do I get a price?

The 71V3557S85PFGI is an active-production part available through independent and authorized distribution. Submit an RFQ with your target quantity; pricing and lead time are confirmed at quote time.

What is the memory organization of 71V3557S85PFGI?

The 71V3557S85PFGI is organized as 128K words by 36 bits, giving a total memory size of 4.5 Mbit. The 36-bit word width suits systems that need a parity or ECC bit per 32-bit data word.