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Infineon Technologies CY7C1399BN-12VXI — Memory (DRAM / SRAM / Flash / EEPROM)

Infineon CY7C1399BN-12VXI SRAM, 256Kbit, 12 ns, 28-SOJ

MPNCY7C1399BN-12VXI
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Infineon CY7C1399BN-12VXI, asynchronous SRAM, 256Kbit (32K x 8), parallel interface, 12 ns access time, 3.0-3.6V supply, -40°C to 85°C, 28-SOJ (0.300") surface-mount package, Tube.

$3.1500Ref. price · indicative, final on quote
Infineon Technologies CY7C1399BN-12VXI datasheet (PDF)
Packaging28-BSOJ (0.300", 7.62mm Width)
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

CY7C1399BN-12VXI specifications
ParameterValue
Memory typeVolatile
MountingSurface Mount
Voltage3V ~ 3.6V
Memory interfaceParallel
Operating temperature-40°C ~ 85°C (TA)
PackageTube
TechnologySRAM - Asynchronous
Access time12 ns
Memory size256Kbit
Memory formatSRAM
Case28-BSOJ (0.300\", 7.62mm Width)
Memory organization32K x 8
Write cycle time - word, page12ns

Product details

12 ns access time — timing margin on the bus

The 12 ns access time defines how quickly data appears on the output after the address is stable.

Industrial temperature range — where it goes

The commercial-grade sibling would not hold calibration in those conditions.

Package and mounting: 28-SOJ surface-mount

The 28-SOJ package (0.300" body width, 7.62 mm) is a surface-mount JEDEC outline with J-bend leads. The Tube shipment is typical for engineering samples and small production runs; the same die is also available in Tape & Reel (CY7C1399BN-12VXIT) for automated pick-and-place.

Frequently asked questions

Can CY7C1399BN-12VXI work with 3.3V logic?

Yes — the supply voltage range is 3.0 V to 3.6 V, which directly matches a 3.3 V logic rail. The I/O levels are compatible with 3.3 V CMOS and LVTTL interfaces. It is not 5 V tolerant.