TC1232CPA Microchip Technology, TC1232CPA Datasheet - Page 7
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TC1232CPA
Manufacturer Part Number
TC1232CPA
Description
IC MPU MONITOR 4.5V 8-DIP
Manufacturer
Microchip Technology
Type
Simple Reset/Power-On Resetr
Specifications of TC1232CPA
Number Of Voltages Monitored
1
Package / Case
8-DIP (0.300", 7.62mm)
Output
Open Drain or Open Collector
Reset
Active High/Active Low
Reset Timeout
250 ms Minimum
Voltage - Threshold
4.37V, 4.62V
Operating Temperature
0°C ~ 70°C
Mounting Type
Through Hole
Chip Enable Signals
No
Minimum Operating Temperature
0 C
Operating Supply Voltage
5 V
Operating Temperature Range
0 C to + 70 C
Output Type
Active High or Active Low or Open Drain or Push-Pull
Power Fail Detection
Yes
Monitored Voltage
4.5 V to 4.75 V
Undervoltage Threshold
4.5 V or 4.25 V
Overvoltage Threshold
4.74 V or 4.49 V
Manual Reset
Resettable
Watchdog
Yes
Battery Backup Switching
No
Power-up Reset Delay (typ)
1000 ms
Supply Voltage (max)
5.5 V
Supply Voltage (min)
4 V
Supply Current (typ)
200 uA
Mounting Style
Through Hole
Maximum Operating Temperature
+ 70 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Other names
158-1042
158-1042
158-1042
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
TC1232CPA
Manufacturer:
Microchi
Quantity:
1 000
Part Number:
TC1232CPA
Manufacturer:
MIC
Quantity:
20 000
4.0
4.1
The TC1232 provides the function of warning the
processor of a power failure. When V
being below the voltage levels defined by the TOL pin,
the TC1232’s comparator outputs the RST and RST
signals to a logic level that warns the system of an out-
of-tolerance power supply. The RST and RST signals
switch at a threshold value of 4.5V if TOL is tied to V
and at a value of 4.75 volts if TOL is grounded. The
RST and RST signals are held active for a minimum of
250 ms to ensure that the power supply voltage has
been stabilized.
Figure 4-1 shows the V
Figure 4-2 shows the V
Figure 4-3 shows the time from when the voltage trip
point is detected to the reset output pin going active.
Figure 4-4 shows the time from when the voltage trip
point is exited to the reset output pin going inactive.
FIGURE 4-1:
FIGURE 4-2:
© 2005 Microchip Technology Inc.
V
V
CC
CC
OPERATIONAL DESCRIPTION
Power Monitor
+4.75V
+4.25V
Power-Down Slew Rate.
Power-up Slew Rate.
CC
CC
t
F
fall time.
rise time.
t
R
+4.25V
+4.75V
CC
is detected as
Preliminary
CC
,
FIGURE 4-3:
Delay (Power-Down).
FIGURE 4-4:
Delay (Power-Up).
V
RST
RST
V
V
RST
RST
CC
CC
CC
= 5V
SLEW RATE = 1.66 mV/µs (0.5V/300 µs)
V
V
CC
CC
+4.5V (5% Trip Point)
4.5V(10% Trip Point)
Detect Reset Output
Detect Reset Output
4.6V (5% Trip Point)
+4.25V (10% Trip Point)
TC1232
V
V
DS21370C-page 7
OH
OL
V
V
OH
OL
t
RPD
t
RPU