The document describes the features and characteristics of the µPD23C32000AL, a 32M-bit mask-programmable ROM. It has selectable word organization (BYTE mode: 4,194,304 words by 8 bits, WORD mode: 2,097,152 words by 16 bits). It also provides information on operating supply voltage, access time, power supply current, and other parameters.
The uPD23C32000AL is a 32‑Mbit mask‑programmable ROM offered by NEC. It supports two selectable word organizations: 4,194,304 words × 8 bits (BYTE mode) or 2,097,152 words × 16 bits (WORD mode). The device is supplied in 48‑pin PLASTIC TSOP (I) (normal or reverse bent) and 44‑pin PLASTIC SOP packages.
Key specifications include a supply voltage range of 2.7 V to 3.6 V, active‑mode current of up to 30 mA, standby current of 30 µA, and operating temperature from –10 °C to +70 °C. Pin functions, mask‑programmable output‑enable options, and electrical characteristics are detailed for designers.
| Memory capacity | 32 Mbit |
|---|---|
| Word organization (BYTE mode) | 4,194,304 words × 8 bits |
| Word organization (WORD mode) | 2,097,152 words × 16 bits |
| Supply voltage range | 2.7 V to 3.6 V |
| Package (48‑pin) | PLASTIC TSOP (I) |
| Package (44‑pin) | PLASTIC SOP |
| Input capacitance | 10 pF |
| Output capacitance | 12 pF |
| Operating temperature range | -10 °C to +70 °C |
The device is offered in a 48‑pin PLASTIC TSOP (I) (normal bent or reverse bent) and a 44‑pin PLASTIC SOP package.
The active level of the /OE (output enable) pin is mask‑programmable and can be set to low active, high active, or don’t‑care.
The device operates with a supply voltage between 2.7 V and 3.6 V.