ES51925
3000 Counts Smart DMM
61
62
VAHz
SEL
I
I
Pulse to V- to enable VAHz mode.
Pulse to V- to select target measurement
63
64
HOLD
FC1
I
I
Pulse to V- to enable HOLD function.
Switch 1 for function selection.
65
FC2
I
Switch 2 for function selection.
66
FC3
I
Switch 3 for function selection.
67
68
69
70
FUA
FA
AON
VON
I
I
I
I
I
O
-
O
I
O
Switch 1 for current measurement selection.
Switch 2 for current measurement selection.
Pull to high to sense current measurement priority in auto scan mode
Pull to high to sense voltage measurement priority in auto scan mode
Switch for clamp meter application function
LCD segment line 10 – 15
71
CLAMP
SEG15 – 10
NC
SEG09 - 01
OSC2
OSC1
72 – 77
78 – 79
80 – 88
89
LCD segment line 01 – 09
Crystal oscillator input connection
Crystal oscillator output connection
90
When pulled to V-, an auto back light configuration is allowed.
Configure a low level applied to BKLIT larger than 1 second, the
BKOUT will be active.
91
BKSEL
I
If BKLIT is back to high level, the BKOUT would be inactive.
92
93
94
95
96
97
98
99
100
CESEL
C+
C-
V-
V-
V+
V+
DGND
AGND
I
OL selection feature control pin.
O
O
P
Positive capacitor connection for on-chip DC-DC converter.
Negative capacitor connection for on-chip DC-DC converter.
Negative supply voltage. Connecting to battery negative terminal.
Negative supply voltage. Connecting to battery negative terminal.
P
P/O Output of on-chip DC-DC converter.
P/O Output of on-chip DC-DC converter.
G
G
Digital ground.
Analog ground.
Absolute Maximum Ratings
Characteristic
Supply Voltage (V- to AGND)
Analog Input Voltage
V+
Rating
-4V
V- -0.6 to V+ +0.6
V+ ≥ (AGND/DGND+0.5V)
AGND/DGND
AGND/DGND ≥ (V- -0.5V)
V- -0.6 to DGND +0.6
500mW
Digital Input
Power Dissipation. Flat Package
Operating Temperature
Storage Temperature
0℃ to 70℃
-25℃ to 125℃
Ver 2.9
4
10/06/25
CYRUSTEK [ Cyrustek corporation ]
