Carrier 42HWG009 Technical Data & Service Manual page 52

2) U2 (TD62083AP): DARLINGTON ARRAYS
PIN CONNECTION (TOP VIEW)
O1 O2 O3
18 17 16
1 2 3
11 12 13
3) U4 (14584B): SCHUMITT TRIGGER INVERTER
EQUIVALENT CIRCUIT SCHEMATIC
(1/2 OF CIRCUIT SHOWN)
4) U5 (NM24C02): EEPROM
Dual-In-Line Package(N)
and SO Package(M8)
AO 1 8
A1 7
2
NM24CO2L
NM24CO4L
A2
6
3
4 5
Vss
Top View
See NS Package Number
MO8A(M8) and NO8E(N)
O4 O5 O6 O7 O8 COMMON
15 14 13 12 11 10
4 5 6 7 8 9
14 15 16 17 18 GND
Vcc
NC
SCL
SDA
TL/ D/ 11099-2
SCHEMATICS (EACH DRIVER)
2.7k
INPUT
LOGIC DIAGRAM
1
3
5
9
11
I3
V
DD
Vss=PIN7
Pin Names
Device Address Inputs
A0,A1,A2
Ground
Vss
Data I/0
SDA
SCL
Clock Input
NC No Connection
Vcc +5V
51
COMMON
OUTPUT
7.2k
GND
2
4
6
8
10
12
=PIN14