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| 型号： | ADM691AR-REEL |
| 厂商： | Analog Devices Inc |
| 文件页数： | 1/12页 |
| 文件大小： | 0K |
| 描述： | IC SUPER MPU 4.65 250MA 16SOIC |
| 标准包装： | 1,000 |
| 类型： | 备用电池电路 |
| 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 35 ms |
| 电压 - 阀值： | 4.65V |
| 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： | 带卷 (TR) |
| 其它名称： | ADM691AR-REELTR |
Microprocessor
a
FEATURES
Low Power Consumption:
Precision Voltage Monitor
Supervisory Circuits
ADM691A/ADM693A/ADM800L/M
FUNCTIONAL BLOCK DIAGRAM
BATT ON
2% Tolerance on ADM800L/M
Reset Time Delay—200 ms, or Adjustable
4.65V 1
LOW LINE
1 A Standby Current
Automatic Battery Backup Power Switching
Fast Onboard Gating of Chip Enable Signals
Also Available in TSSOP Package (ADM691A)
APPLICATIONS
Microprocessor Systems
V CC
V BATT
CHIP ENABLE
OUTPUT
CONTROL
V OUT
Computers
Controllers
CE IN
CE OUT
Intelligent Instruments
Automotive Systems
Critical
P Power Monitoring
OSC IN
OSC SEL
RESET &
WATCHDOG
TIMEBASE
RESET &
GENERATOR
RESET
RESET
GENERAL DESCRIPTION
WATCHDOG
INPUT (WDI)
POWER FAIL
INPUT (PFI)
WATCHDOG
TRANSITION DETECTOR
WATCHDOG
TIMER
WATCHDOG
OUTPUT ( WDO )
POWER FAIL
The ADM691A/ADM693A/ADM800L/ADM800M family of
supervisory circuits offers complete single chip solutions for
power supply monitoring and battery control functions in
microprocessor systems. These functions include μ P reset,
1.25V
1 VOLTAGE
ADM691A/ADM693A
ADM800L/ADM800M
DETECTOR = 4.4V (ADM693A/ADM800M)
OUTPUT ( PFO )
backup-battery switchover, watchdog timer, CMOS RAM write
protection, and power-failure warning. The family of products
provides an upgrade for the MAX691A/93A/800M family of
products.
INPUT
All parts are available in 16-pin DIP and SO packages. The
POWER
7805
+5V
0.1μF
ADM691A is also available in a space-saving TSSOP package.
The following functionality is provided:
V CC
CMOS
RAM
V BATT
CE OUT
ADM800L
PFO
μP
1. Power-on reset output during power-up, power-down and
brownout conditions. The circuitry remains operational with
V CC as low as 1 V.
2. Battery backup switching for CMOS RAM, CMOS micro-
processor or other low power logic.
3. A reset pulse if the optional watchdog timer has not been
R1
R2
BATTERY
NC
V CC BAT V OUT
ON
ADM691A CE IN
ADM693A
PFI
GND ADM800M WDI
OSC IN
OSC SEL RESET
ADDRESS
DECODE
A0–A15 μP
POWER
I/O LINE
NMI
RESET
toggled within a specified time.
4. A 1.25 V threshold detector for power fail warning, low bat-
LOW LINE
WDO
tery detection, or to monitor a power supply other than +5 V.
SYSTEM
STATUS
INDICATORS
Figure 1. Typical Application
REV. 0
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
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 617/329-4700 World Wide Web Site: http://www.analog.com
Fax: 617/326-8703 ? Analog Devices, Inc., 1996
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ADM691AR-REEL7 | 制造商:Analog Devices 功能描述:Processor Supervisor 4.65V 4.75V to 5.5V 16-Pin SOIC T/R |
| ADM691ARZ | 功能描述:IC SUPER MPU 4.65 250MA 16SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 监控器 系列:- 标准包装:100 系列:- 类型:简单复位/加电复位 监视电压数目:1 输出:开路漏极，开路漏极 复位:高有效/低有效 复位超时:最小为 250 ms 电压 - 阀值:4.37V，4.62V 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:8-SOIC（0.154"，3.90mm 宽） 供应商设备封装:8-SOIC 包装:管件 产品目录页面:1337 (CN2011-ZH PDF) |
| ADM691ARZ | 制造商:Analog Devices 功能描述:Microprocessor Supervisor |
| ADM691ARZ-REEL | 功能描述:IC SUPERVISOR MPU 4.65V 16SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 监控器 系列:- 标准包装:400 系列:- 类型:备用电池电路 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 35 ms 电压 - 阀值:4.65V 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:带卷 (TR) 其它名称:ADM691ARZ-REEL7TR |
| ADM691ARZ-REEL7 | 功能描述:IC SUPERVISOR MPU 4.65V 16SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 监控器 系列:- 标准包装:400 系列:- 类型:备用电池电路 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 35 ms 电压 - 阀值:4.65V 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:带卷 (TR) 其它名称:ADM691ARZ-REEL7TR |
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