參數(shù)資料
型號(hào): TC7129CLW
廠商: Microchip Technology Inc.
英文描述: 4-1/2 Digit Analog-to-Digital Converters with On-Chip LCD Drivers
中文描述: 4-1/2數(shù)字模擬到數(shù)字轉(zhuǎn)換器與片上LCD驅(qū)動(dòng)器
文件頁(yè)數(shù): 4/15頁(yè)
文件大?。?/td> 214K
代理商: TC7129CLW
3-234
TELCOM SEMICONDUCTOR, INC.
TC7129
4-1/2 DIGIT ANALOG-TO-DIGITAL
CONVERTER WITH ON-CHIP LCD DRIVERS
PIN DESCRIPTIONS
Pin No.
40-Pin
TC7129CPL
Pin No.
44-Pin
TC7129CKW
Pin No.
44-Pin
TC7129CLW
Symbol
Function
1
2
3
4
5
6
7
8
9
40
41
2
3
OSC
1
OSC
3
Input to first clock inverter.
Output of second clock inverter.
Backplane square-wave output for driving annunciators.
Output to display segments.
Output to display segments.
Output to display segments.
Output to display segments.
Output to display segments.
Output to display segments.
Output to display segments.
Output to display segments.
Output to display segments.
Output to display segments.
Output to display segments.
Output to display segments.
Backplane #3 output to display.
Backplane #2 output to display.
Backplane #1 output to display.
Negative rail for display drivers.
Input: When HI, turns on most significant decimal point.
Output: Pulled HI when result count exceeds
±
19,999.
Input: Second most significant decimal point on when HI.
Output: Pulled HI when result count is less than
±
1000.
Input: When floating, ADC operates in the free-run mode.
When pulled HI, the last displayed reading is held. When
pulled LO, the result counter contents aren shown
inincrementing during the deintegrate phase of cycle.
Output:
Negative-going edge occurs when the data latches
are updated. Can be used for converter status signal.
Negative power supply terminal.
Positive power supply terminal and positive rail for display
drivers.
Input to integrator amplifier.
Output of integrator amplifier.
Input: When LO, continuity flag on the display is OFF.
When HI, continuity flag is ON.
Output: HI when voltage between inputs is less than +200
mV. LO when voltage between inputs is more than +200
mV.
Sets common-mode voltage of 3.2V below V
+
for DE,
10X, etc. Can be used as preregulator for external
reference.
Positive side of external reference capacitor.
Negative side of external reference capacitor.
Output of buffer amplifier.
Negative input voltage terminal.
Positive input voltage terminal.
ANNUNCIATOR
B
1
, C
1
, CONT
A
1
, G
1
, D
1
F
1
, E
1
, DP
1
B
2
, C
2
, LO BATT
A
2
, G
2
, D
2
F
2
, E
2
, DP
2
B
3
, C
3
, MINUS
A
3
, G
3
, D
3
F
3
, E
3
, DP
3
B
4
, C
4
, BC
5
A
4
, D
4
, G
4
F
4
, E
4
, DP
4
BP
3
BP
2
BP
1
V
DISP
DP
4
/OR
43
44
1
2
3
4
5
7
8
9
10
11
12
13
14
15
16
5
6
7
8
9
10
11
13
14
15
16
17
18
19
20
21
22
10
11
12
13
14
15
16
17
18
19
20
21
18
24
DP
3
/UR
22
19
25
LATCH/HOLD
23
24
20
26
27
V
V
+
25
26
27
21
23
24
28
29
30
INT IN
INT OUT
CONTINUITY
28
25
31
COMMON
29
30
31
32
33
26
27
29
30
31
32
33
35
36
37
C
+
C–
REF
REF
BUFFER
IN LO
IN HI
相關(guān)PDF資料
PDF描述
TC7129CPL 4-1/2 Digit Analog-to-Digital Converters with On-Chip LCD Drivers
TC7129 4-1/2 DIGIT ANALOG-TO-DIGITAL CONVERTER WITH ON-CHIP LCD DRIVERS
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