The MR27V802D is an 8Mbit electrically programmable read-only memory whose configuration can be electrically switched between 524,288 word x 16bit and 1,048,576 word x 8bit. The MR27V802D operates on a single +3V-3.3V power supply and is TTL compatible. Since the MR27V802D operates asynchronously, external clocks are not required, making this device easy-to-use. The MR27V802D is suitable as large-capacity fixed memory for microcomputers and data terminals. It is manufactured using a CMOS double silicon gate technology and is offered in 42-pin DIP, 44-pin SOP or 44-pin TSOP packages.
The OKI Semiconductor MR27V802D is an 8Mbit electrically Programmable Read-Only Memory (PROM) designed for use as large-capacity fixed memory in microcomputers and data terminals. It features a unique configuration that can be electrically switched between two modes: 524,288 words x 16-bit or 1,048,576 words x 8-bit.
| Memory Capacity / Configuration | 524,288-Word x 16-Bit or 1,048,576-Word x 8-Bit |
|---|---|
| Power Supply Voltage | +3V to +3.3V |
| Access Time (Vec=+3V) | 100ns |
| Access Time (Vec=+3.3V) | 80ns |
| Operating Temperature | -0 to +70 °C |
| Storage Temperature | -55 to +125 °C |
| Packages Available | 42-pin DIP, 44-pin SOP, 44-pin TSOP |
The device can be electrically switched between a 524,288 word x 16-bit configuration and a 1,048,576 word x 8-bit configuration.
The absolute maximum rating for the power supply voltage (Vcc) is 5V.