Infineon CY7C1041BN-20ZSXA, 4Mbit asynchronous SRAM, 256K x 16, 20 ns access time, parallel interface, 4.5V to 5.5V supply, -40°C to 85°C, 44-TSOP II, Tray.
| Parameter | Value |
|---|---|
| Memory type | Volatile |
| Mounting | Surface Mount |
| Supply voltage | 4.5V ~ 5.5V |
| Memory interface | Parallel |
| Operating temperature | -40°C ~ 85°C (TA) |
| Package | Tray |
| Technology | SRAM - Asynchronous |
| Access time | 20 ns |
| Memory size | 4Mbit |
| Memory format | SRAM |
| Case | 44-TSOP (0.400\", 10.16mm Width) |
| Memory organization | 256K x 16 |
| Write cycle time - word, page | 20ns |
The CY7C1041BN-20ZSXA: 4 Mbit asynchronous SRAM organized as 256K x 16 bits, 20 ns access time, parallel interface. Operates from 4.5 V to 5.5 V over -40°C to 85°C.
Marked obsolete by the manufacturer. No official successor listed. Sourced to order against an RFQ.
There is no official manufacturer-issued successor for the CY7C1041BN-20ZSXA. A cross-reference search for a pin-compatible 4 Mbit asynchronous SRAM in 44-TSOP II with a 20 ns or faster access time is the practical path; verify the access-time grade against your bus timing before substituting.
It is a 4 Mbit asynchronous SRAM organized as 256K x 16 bits, with a 20 ns access time, parallel interface, 4.5 V to 5.5 V supply, and -40°C to 85°C operating temperature. It comes in a 44-TSOP II package.
The difference is the access time: the -20ZSXA is rated at 20 ns, while the -15ZSXA is rated at 15 ns. The 5 ns difference matters for bus timing — the -20ZSXA will not meet a timing budget designed for 15 ns parts.