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PDF SGM708 Data sheet ( Hoja de datos )
| Número de pieza | SGM708 | |
| Descripción | Microprocessor Supervisory Circuit | |
| Fabricantes | Shengbang Microelectronics | |
| Logotipo |  |
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SGM708
Low-Cost, Microprocessor
Supervisory Circuit
GENERAL DESCRIPTION
The SGM708 microprocessor supervisory circuit reduces
the complexity and number of components required to
monitor power-supply and monitor microprocessor
activity. It significantly improves system reliability and
accuracy compared to separate ICs or discrete
components.
The SGM708 provides power-supply monitoring circuitry
that generates a reset output during power-up,
power-down and brownout conditions. The reset output
remains operational with VCC as low as 1V.
In addition, there is a 1.25V threshold detector for
power-fail warning, low-battery detection, or monitoring
an additional power supply. An active-low manual-reset
input (MR) is also included.
FEATURES
Precision Supply-Voltage Monitor
4.65V for SGM708-L
4.40V for SGM708-M
4.0V for SGM708-J
3.08V for SGM708-T
2.93V for SGM708-S
2.63V for SGM708-R
Guaranteed RESET Valid at VCC = 1V
200ms Reset Pulse Width
Debounced TTL/CMOS-Compatible
Manual-Reset Input
Voltage Monitor for Power-Fail or Low-Battery Warning
Dual Reset Outputs (Active-Low and Active-High )
-40℃ to +85℃ Operating Temperature Range
Green SOIC-8 Package
The SGM708 is available in Green SOIC-8 package. It
operates over an ambient temperature range of -40℃ to
+85℃.
APPLICATIONS
Computers
Controllers
Intelligent Instruments
Automotive Systems
Critical μP Power Monitoring
SG Micro Corp
www.sg-micro.com
REV. A. 3
1 page  
SGM708
Low-Cost, Microprocessor
Supervisory Circuit
ELECTRICAL CHARACTERISTICS
(VCC = 4.75V to 5.5V for SGM708-L; VCC = 4.5V to 5.5V for SGM708-M; VCC = 4.07V to 5.5V for SGM708-J; VCC = 3.14V to 5.5V for
SGM708-T; VCC = 2.95V to 5.5V for SGM708-S; VCC = 2.68V to 5.5V for SGM708-R; TA = -40°C to +85°C, unless otherwise noted.)
PARAMETER
Operating Voltage Range (VCC)
Supply Current (ISUPPLY)
Reset Threshold (VRT)
Reset Threshold Hysteresis
Reset Pulse Width (tRS)
RESET Output Voltage
RESET Output Voltage
MR Pull-Up Current
MR Pulse Width (tMR)
MR Input Threshold
Low
High
MR to Reset Out Delay (tMD)
PFI Input Threshold
PFI Input Current
PFO Output Voltage
CONDITIONS
SGM708-L
SGM708-M
SGM708-J
SGM708-T
SGM708-S
SGM708-R
SGM708-T, SGM708-S, SGM708-R
SGM708-J
SGM708-L, SGM708-M
ISOURCE = 800μA
ISINK = 3.2mA
VCC = 1V, ISINK = 50μA
ISOURCE = 800µA
ISINK = 1.2mA
MR = 0V
TA = +25°C
VCC = 5V
ISOURCE = 800μA
ISINK = 3.2mA
MIN
1.0
4.5
4.25
3.91
3.02
2.85
2.56
120
VCC - 1.5
TYP
20
4.65
4.4
4.0
3.08
2.93
2.63
25
35
40
200
VCC - 1.5
100
250
250
2
1.17
VCC - 1.5
100
1.25
0.2
MAX
5.5
60
4.75
4.5
4.07
3.14
2.95
2.68
UNITS
V
μA
V
mV
290 ms
0.4 V
0.3
V
0.4 V
600 μA
ns
0.8
V
350 ns
1.3 V
nA
V
0.4
SG Micro Corp
www.sg-micro.com
5
5 Page 
SGM708
TAPE AND REEL INFORMATION
REEL DIMENSIONS
Low-Cost, Microprocessor
Supervisory Circuit
TAPE DIMENSIONS
P2 P0
W
Q1 Q2
Q3 Q4
Q1 Q2
Q3 Q4
Q1 Q2
Q3 Q4
B0
Reel Diameter
Reel Width (W1)
P1
DIRECTION OF FEED
A0
K0
NOTE: The picture is only for reference. Please make the object as the standard.
KEY PARAMETER LIST OF TAPE AND REEL
Package Type
SOIC-8
Reel Width
Reel Diameter
W1
(mm)
13″ 12.4
A0
(mm)
6.4
B0
(mm)
5.4
K0
(mm)
2.1
P0
(mm)
4.0
P1
(mm)
8.0
P2
(mm)
2.0
W
(mm)
12.0
Pin1
Quadrant
Q1
SG Micro Corp
www.sg-micro.com
11
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet SGM708.PDF ] | |
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