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Infineon Technologies CY7C1356C-250AXCT — Memory (DRAM / SRAM / Flash / EEPROM)

Infineon CY7C1356C-250AXCT 9Mbit SRAM, 250 MHz, 100-TQFP

MPNCY7C1356C-250AXCT
Active

Infineon Technologies NoBL™ synchronous SRAM, CY7C1356C-250AXCT, 9Mbit (512K x 18), 250 MHz clock, 2.8 ns access time, 3.135-3.6 V, 100-TQFP, Tape & Reel.

$10.2705Ref. price · indicative, final on quote
Infineon Technologies CY7C1356C-250AXCT datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

CY7C1356C-250AXCT specifications
ParameterValue
SeriesNoBL™
Memory typeVolatile
MountingSurface Mount
Supply voltage3.135V ~ 3.6V
Clock frequency250 MHz
Memory interfaceParallel
Operating temperature0°C ~ 70°C (TA)
PackageTape & Reel (TR)
TechnologySRAM - Synchronous, SDR
Access time2.8 ns
Memory size9Mbit
Memory formatSRAM
Case100-LQFP
Memory organization512K x 18

Product details

250 MHz synchronous SRAM — NoBL bus eliminates the dead cycle

The CY7C1356C-250AXCT is a 9Mbit synchronous SRAM from Infineon's NoBL (No Bus Latency) series, organized as 512K x 18. The 250 MHz clock rate and 2.8 ns access time mean the part can deliver a pipelined read or write on every clock edge without inserting a dead cycle between back-to-back operations — the NoBL architecture lets the next access start immediately after the previous one's address is registered, which matters for high-throughput buffer applications like network packet processing or DSP data caches. The commercial temperature range (0°C to 70°C) limits this part to indoor, controlled-environment equipment — not suitable for extended outdoor or under-hood deployment without active cooling.

Board integration — 100-TQFP footprint and supply routing

The 100-TQFP (14x20 mm) package with 0.5 mm pitch requires a 4-layer PCB minimum for fan-out — the inner signal rows need via transitions to inner layers. Place a 0.1 µF ceramic cap within 2 mm of each VDD/VDDQ pair, and a 10 µF bulk cap per quadrant of the package.

Frequently asked questions

What does the NoBL series mean for system performance?

NoBL (No Bus Latency) eliminates the dead cycle between back-to-back reads or writes. In a standard synchronous SRAM, a read followed by a write inserts an idle clock; the NoBL architecture lets the next access start on the very next clock edge, improving throughput in pipelined systems like network buffers or DSP data caches.

What is the memory organization and access time of the CY7C1356C-250AXCT?

Organized as 512K x 18 (9Mbit total), with a 250 MHz maximum clock frequency and a 2.8 ns access time. The 18-bit word width includes two parity bits per 16-bit data word, or can be used as a full 18-bit data bus.