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| 型号： | TC7129CKW |
| 厂商： | Microchip Technology |
| 文件页数： | 5/28页 |
| 文件大小： | 0K |
| 描述： | IC ADC 4 1/2DGT LCD DVR 44-MQFP |
| 标准包装： | 96 |
| 显示器类型： | LCD |
| 配置： | 7 段显示 |
| 数字或字符： | A/D，4.5 位数字 |
| 电流 - 电源： | 800µA |
| 电源电压： | 6 V ~ 12 V |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 44-QFP |
| 供应商设备封装： | 44-PQFP（10x10） |
| 包装： | 托盘 |
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TC7129
2.0
PIN DESCRIPTIONS
TABLE 2-1:
PIN FUNCTION TABLE
Pin No. Pin No. Pin No.
40-Pin PDIP 44-Pin PQFP 44-Pin PLCC
Symbol
Function
1
2
3
4
5
6
7
40
41
42
43
44
1
2
2
3
4
5
6
7
8
OSC1
OSC3
ANNUNCIATOR
B 1 , C 1 , CONT
A 1 , G 1 , D 1
F 1 , E 1 , DP 1
B 2 , C 2 ,
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.
LO BATT
8
9
10
11
12
13
14
15
16
17
18
19
20
3
4
5
7
8
9
10
11
12
13
14
15
16
9
10
11
13
14
15
16
17
18
19
20
21
22
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
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 high, turns on most significant decimal point.
Output: Pulled high when result count exceeds ±19,999.
21
18
24
DP 3 /UR
Input: Second-most significant decimal point on when high.
Output: Pulled high when result count is less than ±1000.
22
19
25
LATCH/HOLD
Input: When floating, ADC operates in Free Run mode. When
pulled high, the last displayed reading is held. When pulled low,
the result counter contents are shown incrementing during the
de-integrate phase of cycle.
Output: Negative going edge occurs when the data latches are
updated. Can be used for converter status signal.
23
24
20
21
26
27
V–
V+
Negative power supply terminal.
Positive power supply terminal and positive rail for display
drivers.
25
26
27
22
23
24
28
29
30
INT IN
INT OUT
CONTINUITY
Input to integrator amplifier.
Output of integrator amplifier.
Input: When low, continuity flag on the display is off. When high,
continuity flag is on.
Output: High when voltage between inputs is less than +200 mV.
Low when voltage between inputs is more than +200 mV.
28
25
31
COMMON
Sets common mode voltage of 3.2V below V+ for DE, 10X, etc.
Can be used as pre-regulator for external reference.
29
30
31
32
33
34
35
26
27
29
30
31
32
33
32
33
35
36
37
38
39
C REF +
C REF –
BUFFER
IN LO
IN HI
REF HI
REF LO
Positive side of external reference capacitor.
Negative side of external reference capacitor.
Output of buffer amplifier.
Negative input voltage terminal.
Positive input voltage terminal.
Positive reference voltage.
Negative reference voltage
? 2006 Microchip Technology Inc.
DS21459D-page 5
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TC7129CKW713 | 功能描述:LCD 驱动器 w/LCD Driver RoHS:否 制造商:Maxim Integrated 数位数量:4.5 片段数量:30 最大时钟频率:19 KHz 工作电源电压:3 V to 3.6 V 最大工作温度:+ 85 C 最小工作温度:- 20 C 封装 / 箱体:PDIP-40 封装:Tube |
| TC7129CLW | 功能描述:LCD 驱动器 w/LCD Driver RoHS:否 制造商:Maxim Integrated 数位数量:4.5 片段数量:30 最大时钟频率:19 KHz 工作电源电压:3 V to 3.6 V 最大工作温度:+ 85 C 最小工作温度:- 20 C 封装 / 箱体:PDIP-40 封装:Tube |
| TC7129CLW713 | 功能描述:LCD 驱动器 w/LCD Driver RoHS:否 制造商:Maxim Integrated 数位数量:4.5 片段数量:30 最大时钟频率:19 KHz 工作电源电压:3 V to 3.6 V 最大工作温度:+ 85 C 最小工作温度:- 20 C 封装 / 箱体:PDIP-40 封装:Tube |
| TC7129CPL | 功能描述:LCD 驱动器 w/LCD Driver RoHS:否 制造商:Maxim Integrated 数位数量:4.5 片段数量:30 最大时钟频率:19 KHz 工作电源电压:3 V to 3.6 V 最大工作温度:+ 85 C 最小工作温度:- 20 C 封装 / 箱体:PDIP-40 封装:Tube |
| TC7129CPL713 | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:4-1/2 Digit Analog-to-Digital Converters with On-Chip LCD Drivers |
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