The document describes the features and characteristics of a product.
The VP-1000A is an advanced CMOS LSI chip designed for voice and sound record/playback applications. It features 32K × 8 direct memory addressing (expandable), a single 5 V supply, CVSD modulation, and sampling rates from 24 kbps to 128 kbps. The device can operate stand‑alone, interfacing directly with external SRAM for recording or with ROM/EPROM for playback‑only use.
Typical applications include voice memo recorders, sound‑effects generators, and digital announcers for consumer, industrial, security, and telecommunications products. The chip is offered in a 40‑pin DIP or 48‑pin QFP package and can be expanded to unlimited memory length by adding an external counter.
| Supply Voltage (Voo) | 4.5 V – 5.5 V (typ 5 V) |
|---|---|
| Standby Current (Iop) | 50 µA |
| Clock Drive Current | 16 mA |
| Input High Voltage (Vin) | 3.5 V – 5 V |
| Input Low Voltage | 1.5 V |
| Output Drive Current | 4 mA |
| Reset Pulse Width | 500 ns |
| Write Pulse Width | 200 ns |
| Signal‑to‑Noise Ratio | 30 dB |
| Memory Addressing | 32K × 8 bits, expandable with external counter |
| Package Options | 40‑pin DIP or 48‑pin QFP |
| Sampling Rate | 24 kbps – 128 kbps |
| Modulation Type | Continuous Variable Slope Delta (CVSD) |
The device operates from 4.5 V to 5.5 V, with a typical value of 5 V.