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| 型号： | MAX6467US26D3+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/9页 |
| 文件大小： | 0K |
| 描述： | IC MPU/RESET CIRC 2.625V SOT143 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 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 150 ms |
| 电压 - 阀值： | 2.625V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | TO-253-4，TO-253AA |
| 供应商设备封装： | SOT-143-4 |
| 包装： | 带卷 (TR) |
19-2523; Rev 1; 11/05
Microprocessor Supervisory Reset Circuits
with Edge-Triggered, One-Shot Manual Reset
General Description
The MAX6467/MAX6468 microprocessor (μP) supervi-
sory circuits monitor single power-supply voltages from
+1.8V to +5.0V and assert a reset if the supply voltage
drops below its preset threshold. An edge-triggered,
one-shot manual reset function ensures that the μP
enters the reset mode for a fixed timeout period only,
even in the event of a continuously asserted manual
reset. The MAX6467/MAX6468 significantly improve
system reliability compared to traditional manual reset
supervisory circuits.
A variety of factory-trimmed threshold options accommo-
date different supply voltages and tolerances, eliminating
external components. The factory-set thresholds range
from +1.575V to +4.625V to monitor +5.0V, +3.3V, +3.0V,
+2.5V, and +1.8V supplies with various tolerances. Reset
timeout periods of 150ms (min) and 1200ms (min) are
available to accommodate different μP platforms.
A single, active-low RESET output asserts when V CC
drops below its threshold or if the edge-triggered MR
asserts low. RESET remains low for the reset timeout
period after V CC rises above its threshold and for a fixed,
one-shot timeout period after a manual reset input falling
edge. RESET remains valid as long as V CC remains
above +1V. Open-drain (MAX6467) and push-pull
Features
? Precision Factory-Set Reset Threshold Voltages
for +5.0V, +3.3V, +3.0V, +2.5V, and +1.8V Supplies
? Edge-Triggered Manual Reset Input with One-
Shot Pulsed Reset Output
? Two Reset Timeout Period Options (150ms or
1200ms min)
? Immune to Short Voltage Transients
? Low Supply Current (3μA at V CC = +1.8V)
? RESET Valid to V CC = +1V
? Active-Low Open-Drain and Push-Pull RESET
Output Options
? -40°C to +125°C Operating Temperature Range
? Small 4-Pin SC70 and SOT143 Packages
? No External Components Required
? Pin Compatible with MAX811, MAX6315,
MAX6384, and MAX6386
Ordering Information
(MAX6468) output options provide additional flexibility in
the system design.
PART
MAX6467 XS_ _D_-T
TEMP RANGE
-40°C to +125°C
PIN-PACKAGE
4 SC70-4
The MAX6467/MAX6468 are offered in the space-saving
4-pin SOT143 package and the ultra-small 4-pin SC70
package and are specified over the automotive (-40°C to
+125°C) temperature range.
Applications
Cell Phones/PDAs
Embedded Control Systems
Industrial Equipment
Automotive Products
Portable/Battery-Powered Equipment
Medical Devices
DSL Modems
MAX6467US_ _D_-T -40°C to +125°C 4 SOT143-4
MAX6468 XS_ _D_-T -40°C to +125°C 4 SC70-4
MAX6468US_ _D_-T -40°C to +125°C 4 SOT143-4
Note: Insert reset threshold suffix (see Reset Threshold table)
after XS or US. Insert reset timeout delay (see Reset Timeout
Delay table) after D to complete the part number. Sample stock
is generally held on standard versions only (see Standard
Versions table). Standard versions have an order increment
requirement of 2500 pieces. Nonstandard versions have an
order increment requirement of 10,000 pieces. Contact factory
for availability.
Devices are available in both leaded and lead-free packaging.
Specify lead-free by replacing “T” with “+T” when ordering.
Pin Configurations
TOP VIEW
MP3 Players
GPS Systems
GND 1
MAX6467XS
4
V CC
Digital Cameras
RESET 2
MAX6468XS
3
MR
SC70
Typical Operating Circuit appears at end of data sheet.
Pin Configurations continued at end of data sheet.
________________________________________________________________ Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX6467US26D7 | 制造商:Maxim Integrated Products 功能描述:MICROPROCESSOR SUPERVISORY RESET CI - Rail/Tube |
| MAX6467US26D7+ | 制造商:Maxim Integrated Products 功能描述:PROCESSOR SUPERVISOR 2.625V 7UA 4PIN SOT-143 - Rail/Tube |
| MAX6467US26D7+T | 功能描述:监控电路 MPU Supervisory Reset Circuit 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 |
| MAX6467US26D7-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 |
| MAX6467US27D3 | 制造商:Maxim Integrated Products 功能描述:MICROPROCESSOR SUPERVISORY RESET CI - Rail/Tube |
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