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IC, TMP87PH47U
3 7 63 1515 0
Pin No.
1
2
3
4
FREQUENCY 1
5
6
7
8
9
10
11
12
13
14
15
16
17
TE
18
L 13942296513
19
COMBO CLK
20
COMBO DATA
21
22
23
24
25
26
27
COMBO STB
28
29
30
www
31
32
.
33
34
http://www.xiaoyu163.com
Pin Name
I/O
KY OUT 4
O
Keypad column output 4
KY OUT 3
O
Keypad column output 3
KY OUT 2
O
Keypad column output 2
KY OUT 1
O
Keypad column output 1
1 = 25CH, 0 = 10CH
I/O
VOL 1
VOL 0
O
KY IN 6
I
Keypad column input 6
KY IN 5
I
Keypad column input 5
KY IN 4
I
Keypad column input 4
KY IN 3
I
Keypad column input 3
KY IN 2
I
Keypad column input 2
KY IN 1
I
Keypad column input 1
TEST
I
Tied to low
RESET
I
Normaly High, low to reset MCU
XIN
I
Resonator in (4.0 MHz)
XOUT
O
Resonator out (4.0 MHz)
VSS
—
Ground
VREF
I
A/D Reference voltage input (3.0V)
LCD RS
LCD Control (Resister select 0 = Instruction resister, 1 = Data resister)
O
Combo chip CLOCK
LCD RW
LCD Control (0 = Write, 1 = Read)
I/O
Combo chip DATA
EP DATA
EEPROM DATA
BAT DET
I
Battery voltage input
EP CLK
O
EEPROM CLOCK
LCD DB 4
I/O
LCD DATA 4
LCD DB 5
I/O
LCD DATA 5
LCD DB 6
I/O
LCD DATA 6
LCD DB 7
I/O
LCD DATA 7
O
Combo chip STB
TX DATA
O
Transmitted DATA
Received Signal Strength Indicator
0 = Carrier present, 1 = Carrier absent
SIG OUT
I
0 = RX unlock, 1 = RX lock
0 = TX unlock, 1 = TX lock
CHG DET
I
Charger detect 1 = Charging, 0 = Not charging
RX DATA
I
Received DATA
x
ao
y
TX PWR
O
TX Power control 0 = ON, 1 = OFF
i
BPTONE
O
Buzzer signal
RX PWR
O
RX Power control 0 = ON, 1 = OFF
http://www.xiaoyu163.com
8
4 (Max.)
3
VOL 1
1
1
VOL 0
1
0
Q Q
3
6 7
1 3
u163
.
21
2 9
9 4
2 8
Description
2
1 (Min.)
0
0
1
0
1 5
0 5
8
2 9
9 4
m
co
9 9
2 8
9 9
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