Skip to main content
Infineon Technologies CY7C1643KV18-400BZXC — Memory (DRAM / SRAM / Flash / EEPROM)

Infineon CY7C1643KV18-400BZXC 144Mbit QDR II+ SRAM, 400 MHz

MPNCY7C1643KV18-400BZXC
Active

Infineon CY7C1643KV18-400BZXC, 144Mbit Synchronous SRAM, QDR II+, 8M x 18, 400 MHz, Parallel Interface, 1.7V-1.9V, 0°C to 70°C, 165-FBGA (15x17), Tray.

$276.8625Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

CY7C1643KV18-400BZXC 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 size144Mbit
Memory formatSRAM
Case165-LBGA
Memory organization8M x 18

Product details

It clocks at 400 MHz on the parallel interface, delivering the high random-access throughput that QDR is known for — two data words per clock cycle on separate read and write ports. This part targets high-bandwidth, low-latency data buffering in networking equipment (switch fabrics, packet processors), test-and-measurement capture buffers, and high-end signal-processing pipelines where the bus must sustain back-to-back transactions without dead cycles.

At 400 MHz the QDR II+ interface delivers double-data-rate on each port.

EOL hot — sourcing reality for this part

Package and temperature — fit check

The 165-ball FBGA measures 15 x 17 mm. It is a surface-mount, tray-shipped device — no tape-and-reel option in the listing.

Frequently asked questions

Who supplies CY7C1643KV18-400BZXC and how is it quoted?

We supply this part through independent distribution and quote it to order against an RFQ. Availability and current pricing are confirmed at quote time — no stock or price figures are published here because the surplus market moves week to week.

What is the closest pin-compatible alternative to CY7C1643KV18-400BZXC?

No official pin-compatible successor is listed for this exact 144 Mbit / 400 MHz / 165-FBGA configuration. If the design can tolerate a different density or speed grade, consult the Infineon QDR II+ family for a cross; otherwise, securing buffer stock from the surplus channel is the realistic path.

What is CY7C1643KV18-400BZXC's package?

It ships in a 165-ball FBGA (15 x 17 mm) on a JEDEC tray. No tape-and-reel option is listed.

What is the technology of CY7C1643KV18-400BZXC?

It is a synchronous SRAM using the QDR II+ architecture — a double-data-rate interface with separate read and write ports for zero bus-turnaround dead cycles.