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Infineon Technologies CY7C1243KV18-450BZC — Memory (DRAM / SRAM / Flash / EEPROM)

Infineon CY7C1243KV18-450BZC QDR II+ SRAM, 36Mbit 450 MHz

MPNCY7C1243KV18-450BZC
Active

Infineon CY7C1243KV18-450BZC, QDR II+ synchronous SRAM, 36Mbit, 2M x 18 organization, 450 MHz clock, parallel interface, 1.7V–1.9V supply, 165-FBGA (13x15 mm), 0°C to 70°C.

$67.0600Ref. price · indicative, final on quote
Infineon Technologies CY7C1243KV18-450BZC datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

CY7C1243KV18-450BZC 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 size36Mbit
Memory formatSRAM
Case165-LBGA
Memory organization2M x 18

Product details

Lifecycle note — Active with an EOL flag, source with caution

The manufacturer lists this part as Active, but the evidence also carries an end-of-life hot flag. That combination typically means a PCN has been issued or is imminent. No official last-time-buy date or successor MPN appears in the record. If this part is on a production BOM, request the current PCN status and consider qualifying a replacement before the window closes. available via RFQ confirmation now is genuine factory-date-code material; mystery lots surfacing later may be suspect.

Sourcing and fit for your BOM

The 36Mbit density and 18-bit data width target designs that need moderate-depth, wide-word buffer memory — common in Ethernet frame buffers, CAM lookaside, and DSP coefficient storage.

Frequently asked questions

What is the replacement for CY7C1243KV18-450BZC?

No official replacement MPN is listed. The faster 600 MHz and 633 MHz siblings (CY7C2268XV18-600BZXC, CY7C2268XV18-633BZXC) are pin-compatible and may serve as drop-in upgrades if the system can tolerate the higher speed and power. Verify timing closure before substituting.

What is the package and pinout of CY7C1243KV18-450BZC?

It comes in a 165-ball FBGA (13x15 mm), surface-mount, tray packaging. The pinout is a standard QDR II+ footprint shared across the 36Mbit 2M x 18 family.

What is the maximum speed of CY7C1243KV18-450BZC?

The rated clock frequency is 450 MHz, which is the maximum specified speed for this variant.