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Номер произв 83C293
Описание VOLTAGE MONITORS
Производители Unisonic Technologies
логотип Unisonic Technologies логотип 



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83C293 Даташит, Описание, Даташиты
UNISONIC TECHNOLOGIES CO., LTD
83CXXX
Preliminary
4-PIN µP VOLTAGE MONITORS
WITH MANUAL RESET INPUT
DESCRIPTION
The UTC 83CXXX is a microprocessor supervisory circuit. It has
an active-low RESET and push-pull outputs. The circuit can assert
a reset signal as long as the VCC power supplies voltage dropping
below a preset threshold and it keep the reset signal for at least
140ms when VCC has risen above the reset threshold. The reset
threshold can be operated with multi-supply voltages.
The UTC 83CXXX provides the circuit with perfect reliability and
low cost through eliminating external components and adjustments
when applied with +5V, +3.3V, +3.0V power supply The UTC
83CXXX also provide a de-bounced manual reset input.
The reset comparator can work despite of fast transients on VCC,
and the outputs are guaranteed to be in the right logic state while
VCC is down to 1V.
In applications, the UTC 83CXXX is suitable for computers,
intelligent instruments, controllers, critical microprocessor and
microcomputer power monitors, portable or battery-powered
equipment, automotive.
FEATURES
* +3V, +3.3V, and +5V power-supply voltages
* Full temperature rated
* Supply current: 5µA
* Available in configuration: push-pull RESET output
* 140ms minimum power-on reset pulse width
* Guaranteed reset to VCC = +1V
* Power supply transient Immunity
* Eliminating external components
* Manual reset input
ORDERING INFORMATION
Ordering Number
83CXXXG-AD4-R
Note: XXX: Output Voltage, refer to Marking Information.
Package
SOT-143
CMOS IC
Packing
Tape Reel
www.unisonic.com.tw
Copyright © 2015 Unisonic Technologies Co., Ltd
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83C293 Даташит, Описание, Даташиты
83CXXX
MARKING INFORMATION
PACKAGE
VOLTAGE CODE
Preliminary
SOT-143
B: 2.93V
C: 3.08V
PIN CONFIGURATION
MARKING
CMOS IC
PIN DESCRIPTION
PIN NO
1
2
3
4
PIN NAME
GND
RESET
MR
VCC
Ground
DESCRIPTION
RESET output remains low while VCC is below the reset threshold, and for at least
140ms after VCC rises above the reset threshold.
Manual reset input. A logic low on MR asserts reset. Reset remains asserted as
long as MR is low and for at least 140ms after MR returns high, This active-low
input has an internal 20kpull-up resistor. It can be driven from a TTL or
CMOS-logic line, or shorted to ground with a switch. Leave open if unused.
Supply voltage (+5V, +3.3V, +3.0V)
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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83C293 Даташит, Описание, Даташиты
83CXXX
Preliminary
CMOS IC
ABSOLUTE MAXIMUM RATING
PARAMETER
SYMBOL
RATINGS
UNIT
Terminal Voltage (respect to GND)
RESET Voltage
Push-Pull
Open Drain
VCC
VRESET
-0.3 ~ +6.0
-0.3 ~ (VCC+0.3)
-0.3 ~ +6.0
V
V
V
Input Current
ICC 20 mA
Output Current ( RESET )
IOUT 20 mA
Power Dissipation (Ta =+70°C)
Derated Above 70°C
PD
320 mW
4 mW/°C
Operating Temperature
TOPR
-40~+105
°C
Storage Temperature
TSTG
-65~+150
°C
Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
ELECTRICAL CHARACTERISTICS
(VCC = full range, TA =-40°C~+105°C. Typical values are at TA=25°C, unless otherwise specified)
83C293 (2.93V) (VCC= 3.3V)
PARAMETER
VCC Range
MR Input Threshold
Reset Threshold
Supply Current
RESET Output Current Low
(push-pull active low) High
MR Pull-up Resistance
Reset Threshold Tempco
VCC to Reset Delay
Reset Active Timeout Period
MR Minima Pulse Width
MR Glitch Immunity (Note )
MR to Reset Propagation Delay
SYMBOL
VCC
VIH
VIL
VTH
ICC
IOL
IOH
TEST CONDITIONS
TA=0°C~+70°C
TA=-40°C~+105°C
VCC>VTH(MAX)
TA=25°C
VCC<3.6V, TA=-40°C~+105°C
VCC=2.5V, VRESET = 0.5V
VCC= 3.3V, VRESET = 2.8V
VCC= VTH~(VTH-100mV)
VCC= VTH(MAX)
tMR
tMD
MIN
1.0
1.2
1.98
2.871
8
3
10
140
TYP
2.93
5
20
70
15
310
10
100
0.5
MAX
5.5
5.5
0.825
2.988
8
UNIT
V
V
V
V
V
μA
mA
mA
30 k
ppm/°C
520 ms
μs
ns
μs
83C308 (3.08V) (VCC=3.3V)
PARAMETER
SYMBOL
TEST CONDITIONS
VCC Range
MR Input Threshold
Reset Threshold
Supply Current
RESET Output Current
Low
VCC
TA=0°C~+70°C
TA=-40°C~+105°C
VIH
VIL
VCC>VTH(MAX)
VTH TA=25°C
ICC VCC<3.6V, TA=-40°C~+105°C
IOL VCC=2.5V, VRESET = 0.5V
(push-pull active low)
High
IOH VCC= 3.3V, VRESET = 2.8V
MR Pull-up Resistance
Reset Threshold Tempco
VCC to Reset Delay
Reset Active Timeout Period
VCC= VTH ~ (VTH-100mV)
VCC= VTH(MAX)
MR Minima Pulse Width
tMR
MR Glitch Immunity (Note )
MR to Reset Propagation Delay
tMD
Note: “Glitches” of 100ns or less typical values will not generate a reset pulse.
MIN
1.0
1.2
1.98
3.018
8
3
10
140
TYP
3.08
5
20
70
15
310
10
100
0.5
MAX
5.5
5.5
0.825
3.141
8
UNIT
V
V
V
V
V
μA
mA
mA
30 k
ppm/°C
520 ms
μs
ns
μs
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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