Skip to main content
Infineon Technologies CY7C1643KV18-450BZC — Memory (DRAM / SRAM / Flash / EEPROM)

Infineon CY7C1643KV18-450BZC QDR II+ SRAM, 144Mbit, 450 MHz

MPNCY7C1643KV18-450BZC
Obsolete

Infineon CY7C1643KV18-450BZC, QDR II+ Synchronous SRAM, 144Mbit (8M x 18), 450 MHz clock, 1.7V–1.9V supply, 165-FBGA (15x17), commercial temperature 0°C to 70°C.

$333.4200Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

CY7C1643KV18-450BZC specifications
ParameterValue
Memory typeVolatile
MountingSurface Mount
Supply voltage1.7V ~ 1.9V
Clock frequency450 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

144 Mbit QDR II+ SRAM — what the 450 MHz clock buys you

The 450 MHz clock rate delivers back-to-back read and write transactions on every rising and falling edge — effectively doubling the data bandwidth per pin compared to a single-data-rate SRAM.

No last-time-buy window or successor order code appears on the record.

Supply rail and temperature — fit check

That covers controlled indoor environments — central office, data centre, lab equipment — but not outdoor or unventilated enclosures. The package is a 165-ball FBGA, 15 mm x 17 mm body, surface-mount only. The Tray shipping medium is the factory format; for reel quantities the buyer should specify at quote time.

Frequently asked questions

What is the replacement for CY7C1643KV18-450BZC?

No official replacement order code is listed. For a new design, look at current-generation QDR II+ or QDR-IV SRAMs in the 165-FBGA footprint with a 1.8 V supply. Pin compatibility must be confirmed against the specific replacement datasheet.

Can I use CY7C1643KV18-450BZC in my 1.8 V system?

Yes. The memory interface is parallel, and the clock runs at 450 MHz. Ensure the controller supports QDR II+ timing.