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ES51961 Datasheet(PDF) 4 Page - Cyrustek corporation

Part # ES51961
Description  3 3/4 MANU DMM
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Manufacturer  CYRUSTEK [Cyrustek corporation]
Direct Link  http://www.cyrustek.com.tw
Logo CYRUSTEK - Cyrustek corporation

ES51961 Datasheet(HTML) 4 Page - Cyrustek corporation

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ES51961
3 3/4 MANU DMM
2006/1/24
4
Pin Symbol
Type Description
21 V05
O Reference voltage output -0.5V to AGND for resistor measurement.
22 V12
O Reference voltage output -1.2V to AGND.
23 REFLO
I
Low differential reference input connection
24 REFHI
I
High differential reference input connection
25 VIN+
I
High analog input signal connection.
26 VIN-
I
Low analog input signal connection.
27 P
MAX
I/O Maximum peak hold output.
28 P
MIN
I/O Minimum peak hold output.
29 OP+
I
OP + terminal input.
30 OP-
I
OP – terminal input.
31 OPO
O OP output. If this OP is not used, let OPO saturate to V+ can save
power. For example, let OP+=0V and OP-=-3V.
32 OR
O Overrange output. It could be controlled by RANGE pin.
33 PKIN
I
PEAK HOLD ( v.s. AGND ) or Logic Probe ( v.s. V- ) input pin .
34 BKLIT
I
Back light control pin. Pulse low to make this function active.
35 SLEEP
O When auto-power-off happen, this pin output will change from V+ to
V-. If re-power-on happen, the output will change from V- to V+.
36 INT
O Integration cycle output (100 ms).
37 RANGE
I
Semiauto/manual mode and manual range selecting. Pulse low to make
this function active.
38 SET
I
Input to set serial data output. Pulse low to make this function active.
39 MP
I
Ranges setting for MAX/MIN or PEAK mode.
40 DP1
I
Decimal point control for voltage measurements.
41 DP2
I
Decimal point control for voltage measurements.
42 FREQ
I
Frequency counter input, biased to 1/2 V- by IC internal circuit.
43 BDIS
I
When connected to V-, bargraph will be disabled (voltage mode).
44 ANNUNC
O Square-wave output at the backplane frequency, synchronized to BP1.
ANNUNC can be used to control display annunciator. Connecting a
LCD segment to ANNUNC will turn it on; connecting a LCD segment
to its backplane will turn it off.
45
|
67
SEG23
|
SEG01
O
O
LCD Segment line 23.
|
LCD Segment line 01.
68 BP1
O LCD Backplane 1.
69 BP2
O LCD Backplane 2.
70 BP3
O LCD Backplane 3.
71 BP4
O LCD Backplane 4.
72 PH1
O Phase1 output, for capacitor measurement.
73 PH2
O Phase2 output, for capacitor measurement.
74 PH3
O Phase3 output, for capacitor measurement.
75 PH4
O Phase4 output, for capacitor measurement.
76 BUZOUT
O Buzzer output. Audio frequency (2.5 KHz) output which drives a
piezoelectric buzzer.


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