The 15 ns access time means the SRAM can deliver data within 15 ns of the address being valid.
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Infineon CY7C199C-15VXC 256Kbit SRAM, 15 ns, 28-SOJ
MPNCY7C199C-15VXC
Obsolete
Infineon CY7C199C-15VXC, 256Kbit asynchronous SRAM, 32K x 8 organization, 15 ns access time, 4.5V to 5.5V supply, 0°C to 70°C, 28-SOJ package, Tube.
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026
Specifications
| Parameter | Value |
|---|---|
| Memory type | Volatile |
| Mounting | Surface Mount |
| Supply voltage | 4.5V ~ 5.5V |
| Memory interface | Parallel |
| Operating temperature | 0°C~70°C(TA) |
| Package | Tube |
| Technology | SRAM - Asynchronous |
| Access time | 15 ns |
| Memory size | 256Kbit |
| Memory format | SRAM |
| Case | 28-BSOJ (0.300\", 7.62mm Width) |
| Memory organization | 32K x 8 |
| Write cycle time - word, page | 15ns |
Product details
Frequently asked questions
Is CY7C199C-15VXC obsolete and can I still get it?
Yes, the CY7C199C-15VXC is officially obsolete. It is no longer manufactured by Infineon, but it remains available through surplus and independent distribution channels. We can source it to order against an RFQ.
What is the replacement for CY7C199C-15VXC?
Infineon has not published a direct pin-compatible successor for this specific ordering code. For a new design, consider the active members of the CY7C199 family, but verify supply voltage (3.3V vs 5V) and package compatibility. For a drop-in replacement on an existing board, the best path is to source the original part through surplus channels.
Can CY7C199C-15VXC be used in a 5V system?
Yes, the CY7C199C-15VXC is rated for a 4.5V to 5.5V supply, so it connects directly to 5V logic without level translation.
What are the exact specifications of CY7C199C-15VXC?
The CY7C199C-15VXC is a 256Kbit asynchronous SRAM organized as 32K x 8 bits, with a 15 ns access time, parallel interface, 4.5V to 5.5V supply, 0°C to 70°C operating temperature, and a 28-SOJ surface-mount package.