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参数资料
| 型号： | ADM809ZAKS-REEL7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 8/12页 |
| 文件大小： | 0K |
| 描述： | IC SUPERVISOR P/P 2.32V SC70-3 |
| 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： | 推挽式，图腾柱 |
| 复位： | 低有效 |
| 复位超时： | 最小为 140 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-70，SOT-323 |
| 供应商设备封装： | SC-70-3 |
| 包装： | 带卷 (TR) |
ADM803/ADM809/ADM810
INTERFACING TO OTHER DEVICES
The ADM803/ADM809/ADM810 series is designed to integrate
with as many devices as possible and, therefore, has a standard
output dependent on V CC . This enables the parts to be used in
both 3 V and 5 V, or any nominal voltage within the minimum
and maximum specifications for V CC . This design simplifies
interfacing the ADM803/ADM809/ADM810 to other devices.
ENSURING A VALID RESET OUTPUT DOWN TO
V CC = 0 V
When V CC falls below 0.8 V, the ADM803/ADM809 RESET no
longer sinks c urrent. A high impedance CMOS logic input
connected to RESET may, therefore, drift to undetermined logic
levels. To eliminate this problem, a 100 kΩ resistor should be
connected from RESET to ground.
V CC
ADM803/ADM809/ADM810, the possibility of a malfunction
during a power failure is greatly reduced because the devices
can operate effectively even when there are large degradations
of the supply voltages. Another advantage is the very accurate
internal voltage reference circuit of the ADM803/ADM809/
ADM810. These benefits combine to produce an exceptionally
reliable voltage monitor circuit.
INTERFACING TO MICROPROCESSORS WITH
MULTIPLE INTERRUPTS
In a number of cases, it is necessary to interface many interrupts
from different devices (for example, thermal, altitude, and
velocity sensors). The ADM803/ADM809/ADM810 can easily
be integrated into existing interrupt-handling circuits, as shown
in Figure 13, or can be used as standalone devices.
V CC
ADM809
V CC
PRIORITY ENCODER
74LS147
4-LINE BCD TO
MICROPROCESSOR
RESET
V CC
ADM809
GND
RESET
OTHER SENSING
DEVICES
Figure 12. Ensuring a Valid Reset Output Down to V CC = 0 V
GND
BENEFITS OF AN ACCURATE RESET THRESHOLD
In other microprocessors, tolerances in supply voltages lead
to an overall increase in reset tolerance levels due to the
deterioration of the reset circuit’s power supply. In the
Rev. H | Page 8 of 12
Figure 13. Interfacing to Microprocessors with Multiple Interrupts
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ADM809ZAKS-REEL-7 | 制造商:AD 制造商全称:Analog Devices 功能描述:Microprocessor Supervisory Circuits in 3-Lead SC70 and SOT-23 |
| ADM809ZAKSZ-REEL | 功能描述:IC SUPERVISOR MPU 2.32V SC-70-3 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 |
| ADM809ZAKSZ-REEL2 | 制造商:AD 制造商全称:Analog Devices 功能描述:Microprocessor Supervisory Circuits in 3-Lead SC70 and SOT-23 |
| ADM809ZAKSZ-REEL7 | 功能描述:IC SUPERVISOR MPU 2.32V SC-70-3 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 |
| ADM809ZAKSZ-REEL72 | 制造商:AD 制造商全称:Analog Devices 功能描述:Microprocessor Supervisory Circuits in 3-Lead SC70 and SOT-23 |
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