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PDF G671 Data sheet ( Hoja de datos )
| Número de pieza | G671 | |
| Descripción | (G670 / G671) Microprocessor Reset IC | |
| Fabricantes | GMT | |
| Logotipo |  |
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Global Mixed-mode Technology Inc.
G670/G671
Microprocessor Reset IC
Features
Precision Monitoring of +3V, +3.3V, and +5V
Power-Supply Voltages
Fully Specified Over Temperature
Available in Three Output Configurations
Push-Pull RESET Output (G670L)
Push-Pull RESET Output (G670H)
Open-Drain RESET Output (G671L)
2ms max Power-On Reset Pulse Width
14µA Supply Current
Guaranteed Reset Valid to VCC = +1V
Power Supply Transient Immunity
No External Components
3-Pin SOT-23,TO-92 and SOT-89 Packages
2% Threshold Accuracy
Applications
Computers
Controllers
Intelligent Instruments
Critical µP and µC Power Monitoring
Portable / Battery-Powered Equipment
Automotive
General Description
The G670/G671 are microprocessor (µP) supervisory
circuits used to monitor the power supplies in µP and
digital systems. They provide excellent circuit reliability
and low cost by eliminating external components and
adjustments when used with +5V, +3.3V, +3.0V- pow-
ered circuits.
These circuits perform a single function: they assert a
reset signal whenever the VCC supply voltage declines
below a preset threshold. Reset thresholds suitable for
operation with a variety of supply voltages are avail-
able.
The G671L has an open-drain output stage, while the
G670 have push-pull outputs. The G671L’s open-drain
RESET output requires a pull-up resistor that can be
connected to a voltage higher than VCC. The G670L
have an active-low RESET output, while the G670H
has an active-high RESET output. The reset com-
parator is designed to ignore fast transients on VCC,
and the outputs are guaranteed to be in the correct
logic state for VCC down to 1V.
Low supply current makes the G670/G671 ideal for
use in portable equipment. The G670/G671 are avail-
able in 3-pin SOT-23, TO-92 and SOT-89 packages.
Pin Configuration
Typical Application Circuit
3
12
SOT-23
TTooppVVieieww
12 3
SOT-89
Top
View
123
TO-92
VCC
VCC
G670/G671
RESET
(RESET)
GND
VCC
*RPULL-UP
µP
RESET
INPUT
GND
*G671 only
Ver: 1.5
Dec 03, 2005
TEL: 886-3-5788833
http://www.gmt.com.tw
1
1 page  
Global Mixed-mode Technology Inc.
Selector Guide
G670/G671
ORDER NUMBER
ORDER NUMBER
(Pb free)
RESET
THRESHOLD (V)
OUTPUT TYPE
G671L463T71U
G671L463T71Uf
4.60
Open-Drain
G671L438T71U
G671L438T71Uf
4.32
Open-Drain
G671L400T71U
G671L400T71Uf
3.96
Open-Drain
G671L330T71U
G671L330T71Uf
3.30
Open-Drain
G671L308T71U
G671L308T71Uf
3.10
Open-Drain
G671L293T71U
G671L293T71Uf
2.91
Open-Drain
G671L263T71U
G671L263T71Uf
2.64
Open-Drain
G670H463T71U
G670H463T71Uf
4.60
Push-Pull RESET
G670H438T71U
G670H438T71Uf
4.32
Push-Pull RESET
G670H400T71U
G670H400T71Uf
3.96
Push-Pull RESET
G670H330T71U
G670H330T71Uf
3.30
Push-Pull RESET
G670H308T71U
G670H308T71Uf
3.10
Push-Pull RESET
G670H293T71U
G670H293T71Uf
2.91
Push-Pull RESET
G670H263T71U
G670H263T71Uf
2.64
Push-Pull RESET
G670L463T71U
G670L463T71Uf
4.60
Push-Pull
G670L438T71U
G670L438T71Uf
4.32
Push-Pull
G670L400T71U
G670L400T71Uf
3.96
Push-Pull
G670L330T71U
G670L330T71Uf
3.30
Push-Pull
G670L308T71U
G670L308T71Uf
3.10
Push-Pull
G670L293T71U
G670L293T71Uf
2.91
Push-Pull
G670L263T71U
G670L263T71Uf
2.64
Push-Pull
Note: T7: SOT-23
Not all product options are ready for mass production, please contact factory for availability.
TOP MARK
SOT-23
669Gx
669Fx
669Ex
669Dx
669Cx
669Bx
669Ax
668Nx
668Mx
668Lx
668Kx
668Jx
668Ix
668Hx
668Gx
668Fx
668Ex
668Dx
668Cx
668Bx
668Ax
Selector Guide
ORDER NUMBER ORDER NUMBER
(Pb free)
RESET
THRESHOLD (V)
OUTPUT TYPE
G671L463T72U
G671L463T72Uf
4.60
Open-Drain
G671L438T72U
G671L438T72Uf
4.32
Open-Drain
G671L400T72U
G671L400T72Uf
3.96
Open-Drain
G671L330T72U
G671L330T72Uf
3.30
Open-Drain
G671L308T72U
G671L308T72Uf
3.10
Open-Drain
G671L293T72U
G671L293T72Uf
2.91
Open-Drain
G671L263T72U
G671L263T72Uf
2.64
Open-Drain
G670H463T72U
G670H463T72Uf
4.60
Push-Pull RESET
G670H438T72U
G670H438T72Uf
4.32
Push-Pull RESET
G670H400T72U
G670H400T72Uf
3.96
Push-Pull RESET
G670H330T72U
G670H330T72Uf
3.30
Push-Pull RESET
G670H308T72U
G670H308T72Uf
3.10
Push-Pull RESET
G670H293T72U
G670H293T72Uf
2.91
Push-Pull RESET
G670H263T72U
G670H263T72Uf
2.64
Push-Pull RESET
G670L463T72U
G670L463T72Uf
4.60
Push-Pull
G670L438T72U
G670L438T72Uf
4.32
Push-Pull
G670L400T72U
G670L400T72Uf
3.96
Push-Pull
G670L330T72U
G670L330T72Uf
3.30
Push-Pull
G670L308T72U
G670L308T72Uf
3.10
Push-Pull
G670L293T72U
G670L293T72Uf
2.91
Push-Pull
G670L263T72U
G670L263T72Uf
2.64
Push-Pull
Note: T7: SOT-23
Not all product options are ready for mass production, please contact factory for availability.
TOP MARK
SOT-23
667Gx
667Fx
667Ex
667Dx
667Cx
667Bx
667Ax
666Nx
666Mx
666Lx
666Kx
666Jx
666Ix
666Hx
666Gx
666Fx
666Ex
666Dx
666Cx
666Bx
666Ax
Ver: 1.5
Dec 03, 2005
TEL: 886-3-5788833
http://www.gmt.com.tw
5
5 Page 
Global Mixed-mode Technology Inc.
Package Information
L
b
E
e
G670/G671
D
D1
SYMBOL
A
A1
b
E
C
L
e
G
D
D1
A
C
A1
G
TO-92 (TD) Package
MILLIMETER
MIN
3.35
1.0414
0.254
4.34
0.254
14.53
1.143
3.683
4.29
4.34
MAX
3.86
1.55
0.508
4.85
0.508
15.04
1.397
4.191
4.80
4.85
MIN
0.132
0.041
0.010
0.171
0.010
0.572
0.045
0.145
0.169
0.171
INCH
MAX
0.152
0.061
0.020
0.191
0.020
0.592
0.055
0.165
0.189
0.191
Ver: 1.5
Dec 03, 2005
TEL: 886-3-5788833
http://www.gmt.com.tw
11
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet G671.PDF ] | |
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