<pre>
+--()--+
GND | 1 16| +5V A7 | 2 15| A6 CLK4| 3 14| A5 NC | 4 13| A4 CCLR| 5 12| A3 SIN | 6 11| A2 |/CE | 7 10| A1 GND | 8 9| A0
+------+
</pre>
|1||GND||-||Ground
|-
|2||A7||Input||EPROM Address A7
|-
|3||CLK4||Input||Clock (4 MHz)
|4||NC||-||Not connected
|-
|5||CCLR||?Input||?Reset ACID
|-
|6||SIN||?Output||?Serial Data
|-
|7||/CE||Input||EPROM Chip enable
|-
|8||GND||-||Ground
|-
|9||A0||Input||EPROM Address A0
|-
|10||A1||Input||EPROM Address A1
|-
|11||A2||Input||EPROM Address A2
|-
|12||A3||Input||EPROM Address A3
|-
|13||A4||Input||EPROM Address A4
|-
|14||A5||Input||EPROM Address A5
|-
|15||A6||Input||EPROM Address A6
|-
|16||+5V||-||Vcc
|}
Note: The two GND pins are interconnected with each other (inside of the chip). The NC pin seems to be always high.
==Investigations==