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| 型号： | MAX810SEUR+T10 |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 6/8页 |
| 文件大小： | 0K |
| 描述： | IC RESET CIRC MPU SOT23-3 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 10,000 |
| 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： | 高有效 |
| 复位超时： | 最小为 140 ms |
| 电压 - 阀值： | 2.93V |
| 工作温度： | -40°C ~ 105°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | TO-236-3，SC-59，SOT-23-3 |
| 供应商设备封装： | SOT-23-3 |
| 包装： | 带卷 (TR) |
MAX803/MAX809/MAX810
3-Pin Microprocessor Reset Circuits
Therefore, high-impedance CMOS logic inputs con-
nected to RESET can drift to undetermined voltages.
This presents no problem in most applications since
most μP and other circuitry is inoperative with V CC
below 1V. However, in applications where RESET must
be valid down to 0V, adding a pull-down resistor to
RESET causes any stray leakage currents to flow to
ground, holding RESET low (Figure 2). R1’s value is not
critical; 100k ? is large enough not to load RESET and
small enough to pull RESET to ground.
A 100k ? pullup resistor to V CC is also recommended
for the MAX810 if RESET is required to remain valid for
V CC < 1V.
Interfacing to μPs with
Bidirectional Reset Pins
Since the RESET output on the MAX803 is open drain,
this device interfaces easily with μPs that have bidirec-
tional reset pins, such as the Motorola 68HC11.
Connecting the μP supervisor’s RESET output directly
to the microcontroller’s (μC’s) RESET pin with a single
pullup resistor allows either device to assert reset
(Figure 3).
MAX803 Open-Drain RESET Output
Allows Use with Multiple Supplies
Generally, the pullup connected to the MAX803 will
connect to the supply voltage that is being monitored at
the IC’s V CC pin. However, some systems may use the
open-drain output to level-shift from the monitored sup-
ply to reset circuitry powered by some other supply
(Figure 4). Note that as the MAX803’s V CC decreases
400
T A = +25°C
320
240
V CC
MAX809
RESET
160
80
MAX8_ _J/L/M
GND
R1
100k
MAX8_ _R/S/T/Z
0
1
10
100
1000
RESET COMPARATOR OVERDRIVE, V TH - V CC (mV)
Figure 1. Maximum Transient Duration Without Causing a
Figure 2. RESET Valid to V CC = Ground Circuit
Reset Pulse vs. Reset Comparator Overdrive
V CC
+3.3V
V CC
+5.0V
V CC
V CC
V CC
MAX803
R PULLUP
5V SYSTEM
MAX803
RESET
RESET
INPUT
μ P
MOTOROLA
68HCXX
RESET
RESET
INPUT
GND
GND
GND
GND
Figure 4. MAX803 Open-Drain RESET Output Allows Use with
Figure 3. Interfacing to μPs with Bidirectional Reset I/O
6
Multiple Supplies
Maxim Integrated
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PDF描述 |
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| MAX810REUR+T10 | IC RESET CIRC MPU SOT23-3 |
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| ABM12DRMS | CONN EDGECARD 24POS .156 WW |
| MAX810MEUR+T10 | IC RESET CIRC MPU SOT23-3 |
| VE-BTZ-EW-F2 | CONVERTER MOD DC/DC 2V 40W |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX810SEXR | 制造商:Maxim Integrated Products 功能描述:- Cut Tape Product 制造商:Rochester Electronics LLC 功能描述: |
| MAX810SEXR+ | 制造商:Maxim Integrated Products 功能描述:PROCESSOR SUPERVISOR 2.93V 17UA 3PIN SC-70 - Rail/Tube 制造商:Rochester Electronics LLC 功能描述: |
| MAX810SEXR+T | 功能描述:监控电路 3-Pin MPU Supervisor RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| MAX810SEXR+T10 | 功能描述:监控电路 3-Pin MPU Supervisor RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| MAX810SEXR-T | 功能描述:监控电路 RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
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