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Infineon Technologies CY7C1263V18-400BZC — Memory (DRAM / SRAM / Flash / EEPROM)

CY7C1263V18-400BZC QDR II SRAM, 36Mbit, 400 MHz, Obsolete

MPNCY7C1263V18-400BZC
Obsolete

Infineon CY7C1263V18-400BZC, QDR II synchronous SRAM, 36Mbit, 400 MHz clock, 4M x 8 organization, 1.7V–1.9V supply, 165-ball FBGA (15x17 mm), 0°C to 70°C operating temperature.

$57.7800Ref. price · indicative, final on quote
Infineon Technologies CY7C1263V18-400BZC datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

CY7C1263V18-400BZC specifications
ParameterValue
Memory typeVolatile
MountingSurface Mount
Supply voltage1.7V ~ 1.9V
Clock frequency400 MHz
Memory interfaceParallel
Operating temperature0°C ~ 70°C (TA)
PackageTray
TechnologySRAM - Synchronous, QDR II
Memory size36Mbit
Memory formatSRAM
Case165-LBGA
Memory organization4M x 8

Product details

This class of memory is designed for high-bandwidth, low-latency applications such as network switches, telecom line cards, and high-end test equipment where back-to-back read/write throughput without dead cycles is essential.

No last-time-buy window is indicated in the available record. The 165-ball FBGA package and 400 MHz speed grade narrow the pool of available units, so lead time and pricing are confirmed only at quote time against a specific quantity request.

The 400 MHz clock rate defines the peak data bandwidth: with QDR II's dual-port architecture, the part can sustain up to 800 million data transfers per second on each port (read and write simultaneously).

Package and mounting — 165-ball FBGA

Housed in a 165-ball LBGA (supplier device package 165-FBGA, 15x17 mm), this is a surface-mount BGA with a 1.0 mm ball pitch typical of high-density SRAM packages. The tray shipping medium is standard for BGA devices in prototype and low-volume production.

Frequently asked questions

What is the replacement for CY7C1263V18-400BZC?

For a pin-compatible alternative within the same QDR II family, a procurement specialist should cross-reference the base product number CY7C1263 and evaluate other density or speed-grade variants (e.g., CY7C1263V18-333BZC) — but verify the 400 MHz speed requirement and package compatibility against the system design. Without a direct Infineon successor, the independent surplus channel is the primary source for this exact order code.

Can I use CY7C1263V18-400BZC as a replacement for CY7C1263V18-333BZC?

The CY7C1263V18-400BZC operates at a 400 MHz clock versus the 333 MHz of the -333BZC variant. Both share the same base product number (CY7C1263), same 36 Mbit density, same 4M x 8 organization, and same 165-ball FBGA package. The 400 MHz part is faster, so it can serve as a drop-in replacement in a system designed for 333 MHz — provided the controller and PCB timing can handle the higher speed. Verify the supply voltage range and temperature grade match the application.