HP 7475A Service Manual page 64

Model 7475A
A7
10
A6 9
A5
8
A4 7
A3 6
A2
5
A1 4
Ae 3
A1e 25
A12 24
A9 21
AB
20
A11 23
cs
22
1-A-27-1
X+V U16
2
4
8
16
32
64
128
256
512
1024
2048
4096
A0-8191
VPP
VCC
VSS
1
26,28
14
+5V
+5V
Read only memory with 8192 addr-s and
8-bit parallel output. Each output byte is
selected by the 12-bit address in the upper
left corner of the control block. Output is
enabled only when F1 is high and G2 is low.
Figure 6-23. ANSI Y32.14 Logic Symbols (Sheet 6 of 6)
Section VI
6-25/6-26