STK14C88-3 32K x 8 AutoStore™ nvSRAM QuantumTrap™ CMOS Nonvolatile Static RAM is a fast static RAM with a nonvolatile element incorporated in each static memory cell produced by Simtek
The STK14C88-3 is a 32‑K × 8 AutoStore™ non‑volatile SRAM from SIMTEK. It combines fast static RAM operation with an integrated non‑volatile element that can store data on power‑down and recall it on power‑up. Key features include 35 ns‑55 ns access times, 1 000 000 guaranteed store cycles, 100‑year data retention, and single‑supply operation at 3.0 V‑3.6 V.
The device supports three STORE/RECALL methods: hardware STORE via the HSB pin, AutoStore™ using an external capacitor, and software‑controlled STORE/RECALL sequences. Power‑up RECALL occurs automatically when the supply voltage rises above the reset threshold. Proper high‑frequency bypass decoupling (≈0.1 µF) is recommended to minimize noise.
| Access Time | 35 ns, 45 ns, 55 ns |
|---|---|
| Supply Voltage (Voc) | 3.0 V – 3.6 V |
| Typical Output Current | 15 mA (1 output, 1 s) |
| Store Cycle Duration | 10 ms |
| Power‑up Recall Duration | 550 µs |
| Guaranteed Store Cycles | 1 000 000 |
| Data Retention | 100 years |
| Bypass Capacitor Recommendation | ≈0.1 µF |
The device operates from 3.0 V to 3.6 V.
The datasheet guarantees 1 000 000 store cycles.
Data is retained for 100 years in commercial/industrial use.
STORE can be started by a hardware HSB pin, by AutoStore™ using an external capacitor, or by a software sequence of six specific READ addresses.