参数资料
| 型号： | AS1916Z-T |
| 厂商： | ams |
| 文件页数： | 3/15页 |
| 文件大小： | 0K |
| 描述： | IC SUPERVISOR ACT HIGH SOT23-5 |
| 标准包装： | 1 |
| 类型： | 简单复位/加电复位 |
| 监视电压数目： | 1 |
| 输出： | 推挽式，图腾柱 |
| 复位： | 低有效 |
| 复位超时： | 最小为 100 ms |
| 电压 - 阀值： | 2.32V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SC-74A，SOT-753 |
| 供应商设备封装： | SOT-23-5 |
| 包装： | 标准包装 |
| 其它名称： | AS1916Z-TDKR |
AS1916 - AS1918
Datasheet - P i n A s s i g n m e n t s
4 Pin Assignments
Figure 2. Pin Assignments (Top View)
4.1 Pin Descriptions
Table 2. Pin Descriptions
RESETN/RESET
GND
MRN
1
2
3
AS1916 - AS1918
5 V CC
4 WDI
Pin Number
Pin Name
Description
Active-Low Reset Output (AS1916, AS1918). The RESETN signal toggles from high to low when V CC , or
1
RESETN
RESET
MRN is pulled low, or the watchdog triggers a reset. This output signal remains low for the reset timeout period
after all supervised voltages exceed their reset threshold, or MRN goes low to high, or the watchdog triggers a
reset.
Active-High Reset Output (AS1917). The RESET signal toggles from low to high when V CC , or MRN is pulled
low, or the watchdog triggers a reset. This output signal remains high for the reset timeout period (see t RP on
page 4 ) after all supervised voltages exceed their reset threshold, or MRN goes low to high, or the watchdog
triggers a reset.
2
3
4
5
GND
MRN
WDI
VCC
Ground
Active-Low Manual Reset Input . Pulling this pin low asserts a reset. This pin is connected to the internal 50k Ω
pullup to V CC . This reset remains active as long as MRN is low and for the reset timeout period (see t RP on
Note: If the manual reset feature is not used, this pin should be unconnected or connected to V CC .
Watchdog Input . If WDI remains high or low for longer than the watchdog timeout period (see t WD on page 5 ),
the internal watchdog timer period expires and a reset is triggered for the reset timeout period (see t RP on page
4 ). The internal watchdog timer clears whenever a reset is a asserted or when WDI senses a rising or falling
edge.
Note: To disable the watchdog feature, this pin must be unconnected or connected to a tri-state buffer output.
WDI must be low or unconnected (tristate) during the reset timeout period tRP, (see Figure 11 on page 8) .
Supervised Voltage Input . This pin serves as the supervised supply voltage input.
www.austriamicrosystems.com/Supervisors/AS1916
Revision 1.04
2 - 14
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