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| 型号： | ADM8617YAYAKSZ-RL7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 1/12页 |
| 文件大小： | 0K |
| 描述： | IC SUPERVISOR WATCHDOG SC70-4 |
| 标准包装： | 3,000 |
| 类型： | 简单复位/加电复位 |
| 监视电压数目： | 1 |
| 输出： | 开路漏极或开路集电极 |
| 复位： | 低有效 |
| 复位超时： | 最小为 1 ms |
| 电压 - 阀值： | 2.19V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SC-82A，SOT-343 |
| 供应商设备封装： | SC-70-4 |
| 包装： | 带卷 (TR) |
Low Voltage Supervisory Circuits
with Watchdog in 4-Lead SC70
ADM8616/ADM8617
FEATURES
FUNCTIONAL BLOCK DIAGRAM
Precision 1.8 V to 5 V power supply monitoring
9 RESET threshold options
ADM8616
V CC
1.58 V to 4.63 V
4 RESET timeout options
1 ms, 20 ms, 140 ms, 1120 ms
V CC
V REF
RESET
GENERATOR
RESET
3 watchdog timeout options
6.3 ms, 102 ms, 1.6 sec
RESET output stages
Push-pull active-low (ADM8616)
WATCHDOG
DETECTOR
Open-drain active-low (ADM8617)
Low power consumption (5 μA)
Guaranteed reset output valid to V CC = 1 V
Power supply glitch immunity
Specified over ? 40°C to +85°C temperature range
4-lead SC70 package
APPLICATIONS
Microprocessor systems
Computers
Controllers
Intelligent instruments
Portable equipment
GENERAL DESCRIPTION
GND
WDI
Figure 1.
The ADM8616/ADM8617 are supervisory circuits that monitor
power supply voltage levels and code execution integrity in
microprocessor-based systems. A power-on reset signal is
generated when the supply voltage rises to a preset threshold
level. The ADM8616/ADM8617 have an on-chip watchdog
timer that can reset the microprocessor if it fails to strobe
within a preset timeout period.
Each part is available in the following nine reset threshold
options: 1.58 V, 1.67 V, 2.19 V, 2.32 V, 2.63 V, 2.93 V, 3.08 V,
4.38 V, and 4.63 V. There are four reset timeout options: 1 ms,
20 ms, 140 ms, and 1120 ms. There are also three possible
watchdog timeouts available: 6.3 ms, 102 ms, and 1.6 sec.
Rev. B
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
The parts differ in terms of reset output configuration. The
ADM8616 is active-low with a push-pull output, while the
ADM8617 is active-low with an open-drain output.
The ADM8616/ADM8617 are available in 4-lead SC70 packages
and typically consume only 5 μA, making them suitable for use
in low power, portable applications.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 www.analog.com
Fax: 781.461.3113 ?2007 Analog Devices, Inc. All rights reserved.
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相关代理商/技术参数 |
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| ADM8617ZACYKS-RL | 制造商:AD 制造商全称:Analog Devices 功能描述:Low-Voltage Manual Reset & Watchdog Supervisory Circuits in 4-Lead SC70 |
| ADM8617ZACYKS-RL7 | 制造商:AD 制造商全称:Analog Devices 功能描述:Low-Voltage Manual Reset & Watchdog Supervisory Circuits in 4-Lead SC70 |
| ADM8618 | 制造商:AD 制造商全称:Analog Devices 功能描述:Low-Voltage Manual Reset & Watchdog Supervisory Circuits in 4-Lead SC70 |
| ADM8618LACYKS-RL | 制造商:AD 制造商全称:Analog Devices 功能描述:Low-Voltage Manual Reset & Watchdog Supervisory Circuits in 4-Lead SC70 |
| ADM8618LACYKS-RL7 | 制造商:AD 制造商全称:Analog Devices 功能描述:Low-Voltage Manual Reset & Watchdog Supervisory Circuits in 4-Lead SC70 |
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