Adcom GTP-740 - Page 33

33
GTP-740
SEG1 SEG35
C4 R0
SEG36/P05 SEG41/LEDCOM1
COMMON
DRIVER
35 OUT SEGMENT DRIVER
41 BIT DATA SELECTOR
41 BIT
LATCH
41 BIT
LATCH
41 BIT
LATCH
41 BIT
LATCH
5 SEGMENT/PORT
& SEGMENT/LED
DRIVER
TIMING
GEN
OSC
MODE
SELECTOR
CONTROL
LOGIC
C6 C5 C4 C3
(41+7) 48 BIT SHIFT REGISTER
5X5 KEY SCANNER
C2 C1 C0
OSC
V
DD
V
SS
TEST
INT
LOAD
DATAI/O
CLOCK
RESET
COM4
R0 R0 R0 R0C3C2C1C0
1SEG1 48 DATA I/O
2SEG2 47 INT
3SEG3 46 RESET
4SEG4 45 TEST
5SEG5 44 V
SS
6SEG6 43 OSC
7SEG7 42 V
DD
8SEG8 41 SEG41/LED
9SEG9 40 SEG40/P01
10SEG10 39 SEG39/P02
11SEG11 38 SEG38/P03
12SEG12 37 SEG37/P04
13SEG13 36 SEG36/P05
14SEG14 35 SEG35
15SEG15 34 SEG34
16SEG16 33 SEG33
17SEG17 64 COM1 18SEG18 63 COM2 19SEG19 62 COM3 20SEG20 61 COM4 21SEG21 60 C0 22SEG22 59 C1
3SEG23 58 C2
24SEG24 57 C3 25SEG25 56 C4 26SEG26 55 R0 27SEG27 54 R1 28SEG28 53 R2 29SEG29 52 R3 30SEG30 51 R4 31SEG31 50 LOAD 32SEG32 49 CLOCK
KEYBOARD ASSEMBLY
U501: MSM9006-02
IC BLOCK DIAGRAM