PSD913F2, PSD934F2, PSD954F2 are three programmable memory systems. Working voltage is 5V or 3.3V, with 2Mbit main memory, 256Kbit secondary memory, 256Kbit SRAM, 2000+ DPLD gates, 27 reconfigurable I/O ports, enhanced JTAG serial port, programmable power management unit, high durability
The PSD9XX family provides configurable memory systems for 8‑bit microcontrollers, offering up to 2 Mbit of primary flash, a 256 Kbit secondary flash, up to 256 Kbit SRAM, and more than 2,000 gates of programmable logic. The devices include 27 reconfigurable I/O ports, programmable power management, and a JTAG‑compliant serial port for in‑system programming.
Programming can be performed via In‑System Programming (ISP) using the JTAG interface or In‑Application Programming (IAP) where the MCU accesses one flash while the other is being programmed. The built‑in power‑management unit supports automatic power‑down, and the devices operate from a single 5 V (±10 %) or 3.3 V (±10 %) supply. Standby current can be as low as 50 µA for 5 V parts.
| Single Supply Voltage (3.3 V version) | 3.3 V ±10 % |
|---|---|
| Primary Flash Memory | up to 2 Mbit |
| Secondary Flash Memory | 256 Kbit |
| SRAM | up to 256 Kbit |
| Programmable Logic Gates | over 2,000 gates |
| Flash Endurance | ≥ 100,000 erase/write cycles |
| PLD Endurance | ≥ 1,000 erase/write cycles |
| Data Retention | 15 years |
The flash memory is rated for at least 100,000 erase/write cycles, while the PLD is rated for at least 1,000 cycles.