Skip to main content
Renesas Electronics 71V2556S100PF — Memory (DRAM / SRAM / Flash / EEPROM)

71V2556S100PF 4.5Mbit ZBT SRAM, 100 MHz, 100-TQFP

MPN71V2556S100PF
End of Life

Renesas 71V2556S100PF synchronous SRAM, ZBT (Zero Bus Turnaround), 4.5Mbit (128K x 36), 5 ns access time, 100 MHz clock, 3.135V-3.465V supply, 100-TQFP (14x14 mm), 0°C to 70°C.

$1.5Ref. price · indicative, final on quote
Packaging100-LQFP
RoHSRoHS non-compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

71V2556S100PF specifications
ParameterValue
Memory typeVolatile
MountingSurface Mount
Supply voltage3.135V ~ 3.465V
Clock frequency100 MHz
Memory interfaceParallel
Operating temperature0°C ~ 70°C (TA)
PackageBulk
TechnologySRAM - Synchronous, SDR (ZBT)
Access time5 ns
Memory size4.5Mbit
Memory formatSRAM
Case100-LQFP
Memory organization128K x 36

Product details

Memory architecture and bus fit

The 71V2556S100PF is a 4.5 Mbit synchronous SRAM organised as 128K x 36 bits, using a Zero Bus Turnaround (ZBT) architecture that eliminates the dead bus cycle between read and write operations — a fit for pipelined data paths where back-to-back transactions matter. The parallel interface runs at 100 MHz with a 5 ns access time, so the memory can sustain a new transaction every clock edge without wait states, provided the controller matches the ZBT protocol.

Supply, temperature, and package

The 0.5 mm pitch demands a fine-pitch soldering profile and careful PCB pad design to avoid bridging.

Sourced to order against BOM quantities through independent and authorized distribution channels.

Frequently asked questions

What is the memory density and organization of the 71V2556S100PF?

The device is a 4.5 Mbit synchronous SRAM organised as 128K words by 36 bits (128K x 36). The 36-bit word width suits processors with parity or ECC support on a 32-bit data bus.

Is the 71V2556S100PF RoHS compliant?

The manufacturer lists this part as RoHS non-compliant. Verify your assembly's RoHS exemption status before specifying it for a lead-free process.