3.3V 32K/64K x 16/18 Dual-Port Static RAM CY7C027V/028V CY7C037V/038V is a low power, high performance, expandable dual-port static random access memory from Cypress Semiconductor Corporation that allows simultaneous access of the same memory location.
The CY7C027V/028V and CY7C037V/038V are low‑power 3.3 V CMOS dual‑port static RAMs available in 32 K or 64 K depths with 16‑ or 18‑bit word widths. They provide true dual‑port operation, on‑chip arbitration, semaphores for software handshaking, and an interrupt flag for port‑to‑port communication. The devices support master/slave configuration to expand data‑bus width and include automatic power‑down.
The datasheet includes pin‑out diagrams for the 100‑pin TQFP package, electrical specifications such as supply voltage, input/output voltage levels, and timing parameters (access times 15 ns‑25 ns, write/read cycle times). It also describes operation details for write, read, interrupt, busy, master/slave, and semaphore functions, as well as maximum ratings and package dimensions.
| Supply Voltage | 3.3 V |
|---|---|
| Access Time | 15/20/25 ns |
| Active Current (Icc) | 115 mA (typical) |
| Package | 100‑pin TQFP, lead‑free option |
| Static Discharge Voltage | > 1100 V |
The device provides high‑speed access times of 15 ns, 20 ns, or 25 ns depending on the specific configuration.
Each device includes eight semaphore latches for managing shared resources.
The RAM is supplied in a 100‑pin TQFP package, with both standard and lead‑free (Pb‑free) versions.