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Infineon Technologies CY7C199C-12VXCT — Memory (DRAM / SRAM / Flash / EEPROM)

Infineon CY7C199C-12VXCT 256Kbit SRAM, 12 ns, 5V, 28-SOJ

MPNCY7C199C-12VXCT
Obsolete

Infineon Technologies CY7C199C-12VXCT asynchronous SRAM, 256Kbit (32K x 8), 12 ns access time, 4.5V-5.5V supply, 28-SOJ package, Tape & Reel, commercial temperature.

Infineon Technologies CY7C199C-12VXCT datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

CY7C199C-12VXCT specifications
ParameterValue
Memory typeVolatile
MountingSurface Mount
Voltage4.5V ~ 5.5V
Memory interfaceParallel
Operating temperature0°C ~ 70°C (TA)
PackageTape & Reel (TR)
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

The CY7C199C-12VXCT: No pin-compatible or functional replacement has been designated by the manufacturer; a board spin or parametric search for a 5V asynchronous SRAM in 28-SOJ is the only migration path.

12 ns access time and 5V supply — fit constraints

Memory organization is 32K x 8, which maps directly to an 8-bit data bus — the 256Kbit density suits small buffer or parameter storage in embedded systems that do not require byte-wide expansion.

28-SOJ footprint and Tape & Reel packaging

Housed in a 28-BSOJ (0.300", 7.62mm width) surface-mount package, with supplier device package 28-SOJ — the SOJ (Small Outline J-lead) footprint is distinct from SOIC; the J-bend leads save board area but require a specific solder paste stencil aperture for reliable fillet formation. Supplied on Tape & Reel, intended for automated pick-and-place assembly — not available in tray or tube per the packaging record.

Frequently asked questions

What is the replacement for CY7C199C-12VXCT?

Infineon has not designated an official successor order code for this part. A functional replacement would require a board spin to a different package or supply voltage — the 5V rail and 28-SOJ footprint narrow the field to legacy asynchronous SRAM families from other vendors.

What are the exact specs of CY7C199C-12VXCT (access time, voltage, package)?

Access time is 12 ns, supply voltage 4.5V to 5.5V, package 28-SOJ (SOJ-28, 0.300" body width). Memory size is 256Kbit organized as 32K x 8, operating temperature 0°C to 70°C.

Does CY7C199C-12VXCT support 3.3V supply?

No. The supply voltage range is 4.5V to 5.5V only. This part does not support 3.3V operation.

Is CY7C199C-12VXCT available in tray or only tape-and-reel?

Only Tape & Reel packaging is listed for this order code.