This document is about MR27T6402L, a 4M–Word × 16–Bit or 8M–Word × 8–Bit P2ROM produced by OKI Semiconductor. It has 4,194,304-word × 16-bit / 8,388,608-word × 8-bit electrically switchable configuration, Access time 2.7 V to 3.6 V power supply 90 ns MAX 3.0 V to 3.6 V power supply 80 ns MAX, Operating current 20 mA MAX (5MHz), Standby current 10 µA MAX, Input/Output TTL compatible, Three-state output
The Oki MR27T6402L is a P2ROM (Production Programmed ROM) available in two configurations: 4,194,304-word x 16-bit or 8,388,608-word x 8-bit. It features an electrically switchable configuration allowing the user to select between 16-bit and 8-bit output modes via the BYTE# pin. The device operates with a power supply voltage ranging from 2.7 V to 3.6 V.
| Memory Configuration | 4M-Word x 16-Bit or 8M-Word x 8-Bit |
|---|---|
| Access Time (2.7V) | 90 ns MAX |
| Access Time (3.0V) | 80 ns MAX |
| Operating Current | 20 mA MAX (5MHz) |
| Standby Current | 10 uA MAX |
| Operating Temperature | 0 to 70 °C |
| Storage Temperature | -55 to 125 °C |
| Power Supply Voltage | 2.7 V to 3.6 V |
The device supports a 4M-word x 16-bit or an 8M-word x 8-bit configuration.
The output mode is selected using the BYTE# input pin to switch between 16-bit and 8-bit data outputs.
The maximum access time is 90 ns when the power supply is between 2.7 V and 3.6 V.