User guide

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97
AL3001 Pin
Functions
The AL3001 is supplied as a 40 pin plastic DIL package. All signal
levels are TTL. The pin functions are as follows:
Pin Function In/Out
1 VCC -
2 SDA (eeprom data) I/O
3 SCLK (eeprom clock) O
4 NC I
5 NC I
6 LCD D4 (lcd data) I/O
7 LCD D5 (lcd data) I/I
8 LCD D6 (lcd data) I/O
9 LCD D7 (lcd data) I/O
10 GND -
11 SW5 (Enter) I
12 SW4 (Down) I
13 SW3 (Up) I
14 SW2 (Right) I
15 SW1 (Left) I
16 LCDE (lcd E clock) O
17 LCDWR (lcd write) O
18 LCDRS (lcd register select) O
19 Crystal Connection (OSC1) I
20 Crystal Connection (OSC2) I
21 NC -
22 TTL DMX512 Input (RX) I
23 Good Data, Lo=Good (GOOD) O
24 FAN (drives low on hi-temp) O
25 ACK (handshake to AL2001) I/O
26 NC -
27 TEST (connect to GND) I
28 SYN (handshake to AL2001) I/O
29 FRM (handshake to AL2001) I/O
30 NC -
31 GND -
32 MCLR (connect to VCC) I
33 T7 (data bus to AL2001) I/O
34 T6 (data bus to AL2001) I/O
35 T5 (data bus to AL2001) I/O
36 T4 (data bus to AL2001) I/O
37 T3 (data bus to AL2001) I/O
38 T2 (data bus to AL2001) I/O
39 T1 (data bus to AL2001) I/O
40 T0 (data bus to AL2001) I/O