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G676/7

更新时间： 2024-11-17 17:00:51
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描述
G676L is a Push-Pull Low Reset G677L is an Open-Drain Low Reset TCD(ms) = 1860×CD (uF) TMR(ms) = 88000×CMR (uF)

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中文翻译

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G676/7 数据手册

  
G676/G677  
Global Mixed-mode Technology  
Microprocessor Reset IC  
Features  
General Description  
„ Precision Monitoring of +3V, +3.3V, and +5V  
Power-Supply Voltages  
The G676/G677 are microprocessor (µP) supervisory  
circuits used to monitor the power supplies in µP and  
digital systems. They provide excellent circuit reliability  
and low cost and adjustments when used with +5V,  
+3.3V, +3.0V- powered circuits.  
„ Fully Specified Over Temperature  
„ Available in Two Output Configurations  
Push-Pull RESET Output (G676L)  
Open-Drain RESET Output (G677L)  
„ Adjustable Reset Delay Time  
„ Manual Reset Input with Adjustable Manual Re  
set Deglitch Time  
These circuits perform a single function: they assert a  
reset signal whenever the VCC supply voltage declines  
below a preset threshold or manual reset is triggered,  
and keeping it asserted for time delay determined by  
adjustable time delay generator (CD pin) after VCC  
has risen above the reset threshold or manual reset is  
released. Reset thresholds suitable for operation with  
a variety of supply voltages are available. Manual re-  
„ 14µA Supply Current  
„ Guaranteed Reset Valid to VCC = 1V  
„ Power Supply Transient Immunity  
„ 6 pin SOT-23-6 and ADFN1.5X1.5-6 Packages  
„ 2% Threshold Accuracy  
set is generated after pull low MR pin lastingly over  
deglitch time delay set by capacitor connected in  
MRDLY pin.  
Applications  
The G677L has an open-drain output stage, while the  
G676 have push-pull outputs. The G677L’s open-drain  
„ Computers  
„ Controllers  
RESET output requires a pull-up resistor that can be  
connected to a voltage higher than VCC. The reset  
comparator is designed to ignore fast transients on  
VCC, and the outputs are guaranteed to be in the cor-  
rect logic state for VCC down to 1V.  
„ Intelligent Instruments  
„ Critical µP and µC Power Monitoring  
„ Portable / Battery-Powered Equipment  
„ Automotive  
Low supply current makes the G676/G677 ideal for  
use in portable equipment. The G676/G677 are avail-  
able in 6-pin SOT-23-6 and ADFN1.5X1.5-6 packages.  
Ordering Information  
PACKAGE  
ORDER NUMBER  
MARKING  
TEMP. RANGE  
(Green)  
G676LxxxTBU  
G677LxxxTBU  
676xx  
-40°C ~ +105°C  
-40°C ~ +105°C  
SOT-23-6  
SOT-23-6  
677xx  
66  
xx  
67  
xx  
G676LxxxA31U  
ADFN1.5X1.5-6  
ADFN1.5X1.5-6  
-40°C ~ +105°C  
-40°C ~ +105°C  
G677LxxxA31U  
* xxx specifies the threshold voltage.  
e.g. 263 denotes the 2.64V threshold voltage.  
TB: SOT-23-6 A3:ADFN1.5X1.5-6  
1 : Bonding Code  
U: Tape & Reel  
Pin Configuration  
Typical Application Circuit  
VCC  
VCC  
VCC  
MRDLY  
G676/G677  
Rpull-up  
*
G676/G677  
CD  
1
MR  
6
CMR  
G676/G677  
µP  
RESET  
INPUT  
1
6
VCC  
MRDLY  
RESET  
RESET  
VCC  
2
3
5
4
GND  
GND  
CD  
2
3
5
4
RESET  
MR  
MR  
CD  
GND  
GND  
MRDLY  
CD  
ADFN1.5X1.5-6  
SOT-23-6  
*G677 ONLY  
ICC may increased at high TA, Therefore, can not connect  
Resistors to VCC to prevent Icc abnormal behavior at high TA.  
TEL: 886-3-5788833  
http://www.gmt.com.tw  
Ver:1.0  
Apr 17, 2012  
1
1

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