3. External Connection
CNT32-4MT(LPCI)
35
CNT-68M/50M Pin Assignment
N.C.
AGND
N.C.
AGND
AI 04
N.C.
AI 05
N.C.
AGND
AGND
AI 06
N.C.
AI 07
N.C.
AO START
AO STOP
AO EXCLK
DGND
DO 00
DO 01
DO 02
DO 03
DGND
CNT UPCLK
Reseved
Vcc
PUP2
DO3
DO1
TPOB
STARTOUT
GND
STARTIN
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
+3.3V Output *3
Counter Input signal pull-up
CH3 control output *2
CH1 control output *2
Test pulse Phase-B output
Sampling Start Output
Ground
Sampling Start Input
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
+3.3V Output *3
Counter Input signal pull-up
CH2 control output *2
CH0 control output *2
Test pulse Phase-A output
Sampling Stop Output
Sampling Clock Output
Sampling Stop Input
Sampling Clock Input
CH3 Control Input *1
CH3 Phase-Z input
CH3 Phase-B input
CH3 Phase-A input
CH2 Control Input *1
CH2 Phase-Z input
CH2 Phase-B input
CH2 Phase-A input
CH1 Control Input *1
CH1 Phase-Z input
CH1 Phase-B input
CH1 Phase-A input
CH0 Control Input *1
CH0 Phase-Z input
CH0 Phase-B input
CH0 Phase-A input
*1 The control input can serve as the general-input, counter start/stop, preset, and zero-clear.
*2 The control output can serve as the general-output, count match, abnormal input error and digital filter error.
*3 Supply-capable current is 500mA (Max.).
Figure 3.3. Pin Assignment of CNT-68M/50M
