Cypress CY7C1327G-166AXC synchronous SRAM, 4.5 Mbit (256K x 18), 166 MHz clock, 3.5 ns access, 3.15V–3.6V supply, 0°C–70°C, 100-TQFP (14x20 mm), Tray.
| Parameter | Value |
|---|---|
| Memory type | Volatile |
| Mounting type | Surface Mount |
| Voltage | 3.15V ~ 3.6V |
| Frequency | 166 MHz |
| Memory interface | Parallel |
| Operating temperature | 0°C ~ 70°C (TA) |
| Package | Tray |
| Technology | SRAM - Synchronous, SDR |
| Access time | 3.5 ns |
| Memory size | 4.5Mbit |
| Memory format | SRAM |
| Case | 100-LQFP |
| Memory organization | 256K x 18 |
The Cypress CY7C1327G-166AXC is a 4.5 Mbit synchronous SRAM organized 256K x 18, clocked at 166 MHz with a 3.5 ns access time. The 18-bit word width suits designs that need parity or ECC alongside the data bus — common in network buffers, cache tag stores, and telecom line cards. Supply runs 3.15 V to 3.6 V, and the part is specified over the commercial 0°C to 70°C range, so it fits indoor, temperature-controlled equipment.
No official pin-compatible successor or second-source alternate is listed for this part. If you need a drop-in replacement, you will need to evaluate other Cypress (now Infineon) synchronous SRAMs in the same 100-TQFP footprint with matching 166 MHz and 3.5 ns timing — or plan a board spin.
The CY7C1327G-166AXC is supplied in a 100-TQFP (14x20 mm) package, delivered in Tray format.