参数资料
| 型号： | ADM691SQ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 1/16页 |
| 文件大小： | 0K |
| 描述： | IC SUPERVISOR MPU 4.65V 16CDIP |
| 标准包装： | 25 |
| 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： | -55°C ~ 125°C |
| 安装类型： | 通孔 |
| 封装/外壳： | 16-CDIP（0.300"，7.62mm） |
| 供应商设备封装： | 16-CDIP |
| 包装： | 管件 |
a
FEATURES
Superior Upgrade for MAX690–MAX695
Specified Over Temperature
Low Power Consumption (5 mW)
Precision Voltage Monitor
V BATT
Microprocessor
Supervisory Circuits
ADM690–ADM695
FUNCTIONAL BLOCK DIAGRAMS
V OUT
Reset Assertion Down to 1 V V CC
Low Switch On-Resistance 1.5
Normal,
V CC
20 in Backup
High Current Drive (100 mA)
4.65V 1
RESET
GENERATOR 2
RESET
Watchdog Timer—100 ms, 1.6 s, or Adjustable
600 nA Standby Current
Automatic Battery Backup Power Switching
Extremely Fast Gating of Chip Enable Signals (5 ns)
WATCHDOG
INPUT (WDI)
WATCHDOG
TRANSITION DETECTOR
(1.6s)
ADM690
ADM692
ADM694
Voltage Monitor for Power Fail
APPLICATIONS
Microprocessor Systems
Computers
POWER FAIL
INPUT (PFI)
1.3V
1 VOLTAGE
DETECTOR = 4.65V (ADM690, ADM694)
4.40V (ADM692)
POWER FAIL
OUTPUT (PFO)
Controllers
Intelligent Instruments
2 RESET
PULSE WIDTH = 50ms (ADM690, ADM692)
200ms (ADM694)
Automotive Systems
GENERAL DESCRIPTION
V BATT
BATT ON
The ADM690–ADM695 family of supervisory circuits offers
complete single chip solutions for power supply monitoring and
ADM691
V OUT
battery control functions in microprocessor systems. These
functions include μ P reset, backup battery switchover, watchdog
timer, CMOS RAM write protection, and power failure warn-
ing. The complete family provides a variety of configurations to
satisfy most microprocessor system requirements.
V CC
CE IN
4.65V 1
ADM693
ADM695
CE OUT
LOW LINE
The ADM690, ADM692 and ADM694 are available in 8-pin
DIP packages and provide:
1. Power-on reset output during power-up, power-down and
OSC IN
OSC SEL
RESET &
WATCHDOG
TIMEBASE
RESET
GENERATOR
RESET
RESET
brownout conditions. The RESET output remains opera-
tional with V CC as low as 1 V.
2. Battery backup switching for CMOS RAM, CMOS
WATCHDOG
INPUT (WDI)
WATCHDOG
TRANSITION DETECTOR
WATCHDOG
TIMER
WATCHDOG
OUTPUT (WDO)
microprocessor or other low power logic.
3. A reset pulse if the optional watchdog timer has not been
toggled within a specified time.
4. A 1.3 V threshold detector for power fail warning, low battery
detection, or to monitor a power supply other than +5 V.
POWER FAIL
INPUT (PFI)
1.3V
1 VOLTAGE
DETECTOR = 4.65V (ADM691, ADM695)
4.40V (ADM693)
POWER FAIL
OUTPUT (PFO)
The ADM691, ADM693 and ADM695 are available in 16-pin
DIP and small outline packages and provide three additional
functions.
1. Write protection of CMOS RAM or EEPROM.
2. Adjustable reset and watchdog timeout periods.
3. Separate watchdog timeout, backup battery switchover, and
low V CC status outputs.
REV. A
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.
The ADM690–ADM695 family is fabricated using an advanced
epitaxial CMOS process combining low power consumption
(5 mW), extremely fast Chip Enable gating (5 ns) and high reli-
ability. RESET assertion is guaranteed with V CC as low as 1 V.
In addition, the power switching circuitry is designed for mini-
mal voltage drop thereby permitting increased output current
drive of up to 100 mA without the need for an external pass
transistor.
? Analog Devices, Inc., 1996
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 617/329-4700 Fax: 617/326-8703
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ADM692 | 制造商:AD 制造商全称:Analog Devices 功能描述:Microprocessor Supervisory Circuits |
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| ADM6926ABT1 | 功能描述:IC SWITCH CNTRLR 10/100 128QFP RoHS:否 类别:集成电路 (IC) >> 接口 - 控制器 系列:- 标准包装:4,900 系列:- 控制器类型:USB 2.0 控制器 接口:串行 电源电压:3 V ~ 3.6 V 电流 - 电源:135mA 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:36-VFQFN 裸露焊盘 供应商设备封装:36-QFN（6x6） 包装:* 其它名称:Q6396337A |
| ADM6926X-AB-T-1 | 功能描述:IC ETHERNET SW CTRLR 128-PQFP RoHS:是 类别:集成电路 (IC) >> 接口 - 控制器 系列:- 标准包装:4,900 系列:- 控制器类型:USB 2.0 控制器 接口:串行 电源电压:3 V ~ 3.6 V 电流 - 电源:135mA 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:36-VFQFN 裸露焊盘 供应商设备封装:36-QFN（6x6） 包装:* 其它名称:Q6396337A |
| ADM692A | 制造商:AD 制造商全称:Analog Devices 功能描述:Microprocessor Supervisory Circuits |
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