27C256

Pin Arrangement

                  _________    _________
                _|         \__/         |_
           VPP |_|1                   28|_| VCC
                _|                      |_
           A12 |_|2                   27|_| A14
                _|                      |_
            A7 |_|3                   26|_| A13
                _|                      |_
            A6 |_|4                   25|_| A8
                _|                      |_
            A5 |_|5                   24|_| A9
                _|      27C256          |_
            A4 |_|6                   23|_| A11
                _|     256K Bits        |_
            A3 |_|7    32768 Bytes    22|_| /OE
                _|                      |_
            A2 |_|8                   21|_| A10
                _|                      |_
            A1 |_|9                   20|_| /CE
                _|                      |_
            A0 |_|10                  19|_| O7
                _|                      |_
            O0 |_|11                  18|_| 06
                _|                      |_
            01 |_|12                  17|_| O5
                _|                      |_
            02 |_|13                  16|_| 04
                _|                      |_
       GND/VSS |_|14                  15|_| O3
                 |______________________|

• A0-A14 Address Inputs
• O0-O7 Data Output
• /CE Chip Enable
• /OE Output Enable
• VPP Programming Voltage