| Name | Type | unctOn |
| AO - A17 | Input | Address inputs for selecting one of the 262,144 x 8 bit words in the RAM |
| /CEl, CE2 | Input | /CEl is active LOW and CE2 is active HIGH. Both chip enables must be active when data read from or write to the device. If either chip enable is not active, the device is deselected and in a standby power down mode. The DQ pins will be in high impedance state when the device is deselected. |
| /WE | Input | The Write enable input is active LOW. It controls read and write operations. With the chip selected, when /WE is HIGH and /OE is LOW, output data will be present on the DQ pins, when /WE is LOW, the data present on the DQ pins will be written into the selected memory location. |
| /OE | Input | The output enable input is active LOW. If the output enable is active while the chip is selected and the write enable is inactive, data will be present on the DQ pins and they will be enabled. The DQ pins will be in the high impedance state when /OE is inactive. |
| DQO~DQ7 | I/O | These 8 bi-directional ports are used to read data from or write data into the RAM. |
| Vcc | Power | Power Supply |
| Gnd | Power | Ground |
| NC | | No connection |
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