ES51960
3 3/4 Auto DMM
Pin. No Symbol.
73 BUZIN
Description.
Buzzer control input. When Connected BUZIN to -3V turns the buzzer
on.(2.0 KHZ continue signal)
74 BUZOUT Buzzer output. Audio frequency (2.0KHz) output which drives a
piezoelectric buzzer.
75 PH1
Phase output 1,for capacitance measurement.
Phase output 2,for capacitance measurement.
Phase output 3,for capacitance measurement.
Phase output 4,for capacitance measurement.
Crystal oscillator (input) connection.
76 PH2
77 PH3
78 PH4
79 OSC1
80 OSC2
81 BKOUT
Crystal oscillator (output) connection.
If BKLIT function is enabled , this pin output will change from -3V to
+3V for 60 sec, once pressed BKLIT pin again within the 60 sec, this
pin output will change back to –3V.
82 KEY
83 REL
Mode change pin.
Input to get relative display. Pulse low to make this function active.
84 MAX/MIN Input to set MAX/MIN display. Pulse low to make this function active.
85 HOLD
86 RANGE
Input to hold display. Pulse low to make this function active.
Input to set automatic/manual mode and manual range selection. Pulse
low to make this function active.
87 FC5
88 FC4
89 FC3
90 FC2
91 FC1
92 LBAT9
Switch 5 for function selection.
Switch 4 for function selection.
Switch 3 for function selection.
Switch 2 for function selection.
Switch 1 for function selection.
Low battery voltage setting. If used 3V battery, connected this pin to
AGND, the default low battery voltage will be –2.3V. If used 9V
battery, when the input voltage is small than VRH(-1.2V), the low
battery annunciator will be display.
93 SDO
94 C+
Serial data output.
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.
Digital ground, connected to battery positive terminal.
Analog ground.
95 C-
96 V-
97 V-
98 DGND
99 AGND
100 AGND
Analog ground.
5
92年8月4日
CYRUSTEK [ Cyrustek corporation ]
