Radio Shack Pro-60 - Microprocessor (IC1) Port Format

MICROPROCESSOR (IC1) PORT fORMAT
65
80
40
25
Pin No. Function Pin No. Function
1 LCD segmentdriveroutput 41
GND
2 LCD segment driveroutput 42
Key input
3 LCD segmentdriveroutput 43 Key input
4 LCD segmentdriveroutput 44 Key input
5 LCD segmentdriveroutput 45 Key input
6 LCD segment driveroutput 46 Keyoutput
7
LCD segmentdriveroutput 47
Keyoutput
8 LCD segment driveroutput 48 AM/FMIWFM output
9 LCD segmentdriveroutput 49 Peep output
10 LCD segmentdriveroutput
50 Keyoutput
11 LCD segmentdriveroutput 51 Keyoutput
12 LCD segmentdriveroutput 52 Keyoutput
13 LCD segmentdriveroutput
53
Key output
14
NC 54 VDD
15 NC
55 +B
16 NC 56 NC
17 Memory serial data output 57
NC
18 Memorychip select 58
Resonator connection terminal
19 Memorychip select 59 Resonator conneetion terminal
20 Memory serialdata clock
60
Backlight output
21 LCD commondriveroutput 61 Power control
22 LCD commondriveroutput 62 Mute output
23 LCD commondriveroutput
63
Zerornatic control
24
LCD commondriveroutput 64 Zeromatic input
25 LCD bias control
65
Squelchinput
26 LCD drivepower supply
66
low battery input
27 LCD drive power supply 67 Memory data input
28 lCD drive power supply 68 HOlD input
29 WFM output 69
lCD segmentdriver output
30 Band 5 output
70 lCD segmentdriveroutput
31 Band 4 output 71 LCD segmentdriveroutput
32 Band 3 output
72 LCD segment driveroutput
33
Vss
73 lCD segmentdriveroutput
34 Band 2 output 74 lCD segmentdriver output
35 Band 1 output 75
lCD segmentdriver output
36 PLllatch 1 output 76 lCD segmentdriver output
37 PLL latch2 output n LCD segment driver output
38 Key input
78
LCD segment driveroutput
39 PLL serialclockoutput 79 LCD segment driveroutput
40
PLL serlat data output 80 LCD segmentdriveroutput
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