Semiconductor Data - Kenwood TK-3501 Service Manual

MCU: F2136ACNFKFMA (TX-RX unit: IC400)
Pin No. Signal Name I/O
1 NC O
2 VREF -
3 MODE I
4 NC O
5 NC O
6 RESET I
7 XOUT O
8 Vss -
9 XIN I
10 Vcc -
11 BSFT O
12 NC O
13 NC O
14 NC O
15 E2P_WP O
16 E2P_DAT I/O Data input/output from EEPROM
17 E2P_CLK O
18 CLOCK O
19 DATA O
20 PLLEN O
21 PLLPS O
22 PLLLD I
23 NC O
24 EN4 I
25 EN3 I
26 EN2 I
27 EN1 I
28 NC O
29 OPT_DET I
30 LED_R O
31 LED_G O
32 SP_MUTE O
33 NC O
34 5TC O
35 5CC O
36 5MSC O
37 DACLD O
38 PTTI I
39 PFKEY I
40 INT I
41 VDCSW O
42 WID/NAR O
43 RXD I
44 TXD O

SEMICONDUCTOR DATA

Function
NC
Reference voltage input
Mode select for MCU
NC
NC
Reset signal input
Oscillation circuit
GND
Oscillation circuit
Power supply
(Reserve)
NC
NC
NC
Write protect for EEPROM
Clock for EEPROM
Clock for PLL/DAC IC
Data for PLL/DAC IC
Load enable for PLL IC
Power saving for PLL IC
Lock detect signal from PLL IC
NC
Encoder input 4
Encoder input 3
Encoder input 2
Encoder input 1
NC
2pin option detection
LED (red) control
LED (green) control
Power control for EXT AF AMP
NC
5T control
5C control (SAVE)
5MS control
Load enable for DAC IC
PTT key input
PF key input
INT signal input
Voltage discharge switch
(Reserve)
Serial data input (FPU)
Serial data output (FPU)
Pin No. Signal Name I/O
45 NC O
46 NC O
47 VOXINLEVEL I
48 CV_DET I
49 LSDO O
50 HSDO O
51 BATT I
52 RSSI I
53 SQ I
54 LSDIN I
55 THERM I
56 CURREN_DET I
57 T/R_SHIFT O
58 5VC O
59 NC O
60 INTSPSW O
61 INTSPMT O
62 TYPE2 I
63 TYPE1 I
64 5RC O
TK-3501
Function
NC
NC
VOX level input
VCO voltage detection
Low speed data output
DTMF/beep output
Battery voltage input
RSSI input
Squelch input
LSD input
Thermistor input
Current detection
VCO shift control
5V control
NC
Power control for INT AF AMP
Mute control for INT AF AMP
Destination selection 2
Destination selection 1
5R control
9