参数资料
型号: ADM1232ARW
厂商: Analog Devices Inc
文件页数: 3/12页
文件大小: 0K
描述: IC SUPERVISOR FOR CPU 16SOIC
标准包装: 47
类型: 简单复位/加电复位
监视电压数目: 1
输出: 开路漏极,推挽式
复位: 高有效/低有效
复位超时: 最小为 250 ms
电压 - 阀值: 可调节/可选择
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 16-SOIC(0.295",7.50mm 宽)
供应商设备封装: 16-SOIC W
包装: 管件

ADM1232
SPECIFICATIONS
V CC = full operating range, T A = T MIN to T MAX , unless otherwise noted.
Table 1.
Parameter
TEMPERATURE
Min
?40
Typ
Max
+85
Unit
°C
Test Conditions/Comments
T A = T MIN to T MAX .
POWER SUPPLY
Voltage
4.5
5.0
5.5
V
Current
20
200
50
500
μA
μA
V IL , V IH = CMOS levels.
V IL , V IH = TTL levels.
STROBE AND PB RESET INPUTS
Input High Level
Input Low Level
2.0
?0.3
V CC + 0.3
+0.8
V
V
INPUT LEAKAGE CURRENT
(STROBE, TOLERANCE)
TD
?1.0
1.6
+1.0
μA
μA
OUTPUT CURRENT
RESET
RESET/RESET
8
?8
10
?12
mA
mA
V CC is at 4.5 V to 5.5 V.
V CC is at 4.5 V to 5.5 V.
OUTPUT VOLTAGE
RESET/RESET
V CC ? 0.5
V CC ? 0.1
V
When sourcing less than 500 μA, RESET remains within
0.5 V of V CC on power-down until V CC drops below 2.0 V.
When sinking less than 500 μA, RESET remains within
0.5 V of GND on power-down until V CC drops below 2.0 V.
RESET/RESET High Level
RESET/RESET Low Level
1 V OPERATION
2.4
0.4
V
V
RESET Output Voltage
RESET Output Voltage
V CC ? 0.1
0.1
V
V
When sourcing less than 50 μA.
When sinking less than 50 μA.
V CC TRIP POINT
5%
10%
4.5
4.25
4.62
4.37
4.74
4.49
V
V
TOLERANCE = GND.
TOLERANCE = V CC .
CAPACITANCE
Input (STROBE, TOLERANCE)
Output (RESET, RESET)
5
7
pF
pF
T A = 25°C.
T A = 25°C.
PB RESET
Time
20
ms
PB RESET must be held low for a minimum of 20 ms to
guarantee a reset.
Delay
RESET ACTIVE TIME
1
250
4
610
20
1000
ms
ms
STROBE
Pulse Width
70
ns
Timeout Period
62.5
250
500
150
600
1200
250
1000
2000
ms
ms
ms
TD = 0 V.
TD = floating.
TD = V CC .
V CC
Fall Time
Rise Time
V CC FAIL DETECT TO RESET
10
0
μs
μs
Guaranteed by design.
Guaranteed by design.
RESET and RESET are logically correct.
OUTPUT DELAY
50
μs
After V CC falls below the set tolerance voltage (see Figure 9).
250
610
1000
ms
After V CC rises above the set tolerance voltage.
Rev. C | Page 3 of 12
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