Panasonic KX-FG2452CX Service Manual page 16

KX-FG2452CX
Descriptions of Pin Distribution (IC501)
NO. SIGNAL
1 VSSA
2 VDDA 3.3
3 AIN1
4 AIN2
5 AIN3
6 AMON
7 VSS
8 X32OUT
9 X32IN
10 VDD (3.3V / B)
11 XBACEN
12 XRAMCS
13 VDD (3.3V / B)
14 VDD (2.5V/B)
15 FTG
16 F1
17 F2/OP
18 FR/OP
19 CPC/IP
20 RVN
21 IRDATXD/IOP81
22 IRDARXD/IOP80
23 TXD/IOP30
24 RXD/IOP31
25 XRTS/IOP32
26 XCTS/IOP33
27 VDD (2.5V)
28 TONE1
29 TONE2
30 VOLUREF
31 VOLUOUT
32 VOLUIN
33 XNMI
34 FMEMDO/IOP26/CBUSY2
35 VDD (3.3V)
36 VSS
37 VSS
38 VDD (3.3V)
39 MIDAT/IOP45
40 MICLK/IOP46
41 MILAT/IOP47
42 20KOSC/IOP56/CSO
43 XWAIT/IOP60
44 HSTRD/IOP40
45 HSTWR/IOP41
46 XOPRBE/MFCS
47 ADR15/OP
48 ADR14/OP
49 ADR13/OP
50 VDD (2.5V)
51 XOUT
52 XIN
53 VSS
54 VDD (3.3V)
55 XTEST
56 TEST1
I/O POWER SUPPLIED
VOLTAGE
GND
3.3V
A 3.3V
A 3.3V
A 3.3V
A 3.3V
GND
O 3.3V/BATT
I 3.3V/BATT
-----
I 3.3V/BATT
O 3.3V/BATT
-----
-----
O 3.3V
O 3.3V
O 3.3V
O 3.3V
I 3.3V
I 3.3V
O 3.3V
I 3.3V
O 3.3V
I 3.3V
I 3.3V
I 3.3V
-----
A 3.3V
A 3.3V
A 3.3V
A 3.3V
A 3.3V
I 3.3V
O 3.3V
-----
GND
GND
-----
I/O 3.3V
I/O 3.3V
I/O 3.3V
O 3.3V
I 3.3V
O 3.3V
I/O 3.3V
O 3.3V
O 3.3V
O 3.3V
O 3.3V
-----
O 3.3V
I 3.3V
GND
-----
O 3.3V
I 3.3V
16
DESCRIPTION
POWER SOURCE (ANALOG GND)
POWER SOURCE (ANALOG +3.3V)
CCD IMAGE SIGNAL INPUT
THERMISTOR TEMPERATURE WATCH INPUT
-----------
ANALOG SIGNAL MONITOR TERMINAL
POWER SOURCE (GND)
RTC (32.768KHz) CONNECTION
RTC (32.768KHz) CONNECTION
POWER SOURCE (+3.3V/LITHIUM BATTERY)
BACKUP ENABLE
NOT USED
POWER SOURCE(+3.3V / LITHIUM BATTERY)
POWER SOURCE (+2.5V / LITHIUM BATTERY)
SH SIGNAL OUTPUT FOR CIS (SI)
01 SIGNAL OUTPUT FOR CIS (CLK)
OUTPUT PORT (THON)
OUTPUT PORT (MDMRST)
INPUT PORT (BELL)
INPUT PORT (REED)
OUTPUT PORT (BELL-TX)
INPUT PORT (CSI)
OUTPUT PORT (TXD)
INPUT PORT (RXD)
INPUT PORT (COVER OPEN)
INPUT PORT (FILM CHECK)
POWER SOURCE (+2.5V)
TONE OUTPUT
TONE OUTPUT
ANALOG REF VOLTAGE
VOLUME OUTPUT
VOLUME INPUT
HIGH FIXED
OUTPUT PORT (CBUSY2)
POWER SOURCE (+3.3V)
POWER SOURCE (GND)
POWER SOURCE (GND)
POWER SOURCE (+3.3V)
INPUT / OUTPUT PORT (OPRESET)
INPUT / OUTPUT PORT (INTERCOM)
INPUT / OUTPUT PORT (XINTERCOM)
OUTPUT PORT (CSO)
INPUT PORT (PTOP)
OUTPUT PORT (LINERLY)
INPUT/OUTPUT PORT (SPMUTE)
MFCS
CPU ADDRESS BUS 15 (NOT USED)
CPU ADDRESS BUS 14 (NOT USED)
CPU ADDRESS BUS 13 (NOT USED)
POWER SOURCE (+2.5V)
SYSTEM CLOCK (24.00MHz)
SYSTEM CLOCK (24.00MHz)
POWER SOURCE (GND)
POWER SOURCE (+3.3V)
24.576MHz CLOCK
HIGH FIXED