G696 GMT [Global Mixed-mode Technology Inc], G696 Datasheet

G696

Manufacturer Part Number

G696

Description

Microprocessor Reset IC

Manufacturer

GMT [Global Mixed-mode Technology Inc]

Datasheet

1.G696.pdf (8 pages)

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Features

Applications

Pin Configuration

Ver: 1.1

Jul 26, 2002

Fully Specified Over Temperature

Available in Three Output Configurations

Push-Pull RESET Output (G696L)

Push-Pull RESET Output (G696H)

Open-Drain RESET Output (G697L)

Externally Programmable Time Delay Generator

6µA Supply Current

Guaranteed Reset Valid to V

Power Supply Transient Immunity

5 pin SOT23-5 Packages

Computers

Controllers

Intelligent Instruments

Critical µP and µC Power Monitoring

Portable / Battery-Powered Equipment

Automotive

Precision Monitoring of +3V, +3.3V, and +5V

Power-Supply Voltages

RESET(RESET)

GND

Global Mixed-mode Technology Inc.

()is for G696H

G696/G697

SOT23-5

Microprocessor Reset IC

= 0.8V

N.C.

Typical Operating Circuit

General Description

The G696/G697 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.

These circuits perform a single function: they assert a

reset signal whenever the V

below a preset threshold, with hysteresis keeping it

asserted for time delay determined by externally pro-

gramable time delay generator. after V

above the reset threshold. Reset thresholds suitable

for operation with a variety of supply voltages are

available.

The G697L has an open-drain output stage, while the

G696 have push-pull outputs. The G697L’s open-drain

connected to a voltage higher than V

have an active-low RESET output, while the G696H

has an active-high RESET output. The reset com-

parator is designed to ignore fast transients on V

and the outputs are guaranteed to be in the correct

logic state for V

Low supply current makes the G696/G697 ideal for

use in portable equipment. The G696/G697 are avail-

able in 5-pin SOT23-5 packages.

Ordering Information

RESET output requires a pull-up resistor that can be

G696H(L)xxxT1 -40°C ~ +105°C

G697LxxxT1

* xxx specifies the threshold voltage.

e.g. 263 denotes the 2.63V threshold voltage.

PART

G696/G697

*G697 ONLY

GND

(RESET)

RESET

TEMP. RANGE

-40°C ~ +105°C

down to 0.8V.

G696/G697

pull-up*

supply voltage declines

RESET

INPUT

http://www.gmt.com.tw

PIN-PACKAGE

TEL: 886-3-5788833

µP

GND

SOT23-5

. The G696L

has risen

Related parts for G696

G696 Summary of contents

Page 1

... RESET output. The reset com- parator is designed to ignore fast transients on V and the outputs are guaranteed the correct logic state for V Low supply current makes the G696/G697 ideal for use in portable equipment. The G696/G697 are avail- able in 5-pin SOT23-5 packages. Ordering Information PART G696H(L)xxxT1 -40° ...

Page 2

... V G69__330_ HYS G69__308_ G69__293_ G69__263_ G69_ _ 463/438/400/330__ =3.3V G69_ _308/293 TDC CC V =3.0V G69_ 263_ 1.5V 0. G696/G697 = +70° +25° for 263 version.) (Note 1) MIN TYP MAX UNITS 0.8 5 8.5 4.537 4.63 4.722 4.293 4.38 4.467 3.92 4 4.08 3.234 3.30 3.366 3 ...

Page 3

... CC A for 463/438/400/330 versions PARAMETER RESET Output Current Low (push-pull active low, and open-drain active-low, G696L and G697L) RESET Output Current High (push-pull active low, G696L) RESET Output Current Low (push-pull active high, G696H) RESET Output Current High (push-pull active ...

Page 4

... V =3V 1.7 CC 1.65 1.6 V =2.5 CC 1.55 1.5 1.45 1.4 V =1.5V CC 1.35 1.3 0.6 1.2 1.8 2.4 3 -40 -30 CD=0. G696/G697 = +25° for 263 version = =3. =2 Temperature (°C) Output Time Delay vs. Capacitance >V to output change (ms Delay between V < output change (us) 0.001 0.01 0.1 1 CD, Delay Pin Capacitance (uF) Delay Resistance vs ...

Page 5

... Low), Pin 1 Reset Output Reset Output (Active High), Pin 1 (Active High), Pin 1 Functional Diagram GND GND for G696H () is for G696H Ver: 1.1 Jul 26, 2002 ...

Page 6

... The G697L uses an open-drain output, TH- HYS and the G696L/G696H have a push-pull output stage. Connect a pull-up resistor on the G697L’s RESET out- put to any supply between 0 and 5.5V. The time delay is set by external capacitor C internal pull up resistor R . When the voltage pin exceeds the buffer threshold, typically 0 ...

Page 7

... The G69_ _463/G69_ _308 use highly accurate circuitry to ensure that reset is asserted close to the 5% limit, decreases and long before the supply has declined to 10% below CC nominal. 7 G696/G697 TEL: 886-3-5788833 http://www.gmt.com.tw ...

Page 8

... GMT Inc. does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and GMT Inc. reserves the right at any time without notice to change said circuitry and specifications. Ver: 1.1 Jul 26, 2002 DIMENSIONS IN MILLIMETERS MIN NOM 1.00 1.10 0.00 0.70 0.80 0.35 0.40 0.10 0.15 2.70 2.90 1.40 1.60 ----- 1.90(TYP) ----- 0.95 2.60 2.80 0.37 ------ 1º 8 G696/G697 θ1 θ1 MAX 1.30 ----- 0.10 0.90 0.50 0.25 3.10 1.80 ----- ----- 3.00 ----- 5º 9º TEL: 886-3-5788833 http://www.gmt.com.tw ...

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