
TC1270/TC1271
DS21381D-page 2
2007 Microchip Technology Inc.
1.0
ELECTRICAL
CHARACTERISTICS
Absolute Maximum Ratings
Supply Voltage (VCC to GND) .............................+6.0V
RESET, Reset ............................ -0.3V to (VCC + 0.3V)
Input Current, VCC..............................................20 mA
Output Current, RESET, Reset...........................20 mA
Operating Temperature Range.............-40°C to +85°C
Storage Temperature Range ..............-65°C to +150°C
Stresses above those listed under “Absolute
Maximum Ratings” may cause permanent damage to
the device. These are stress ratings only and functional
operation of the device at these or any other conditions
above those indicated in the operation sections of the
specifications is not implied. Exposure to Absolute
Maximum Rating conditions for extended periods may
affect device reliability.
ELECTRICAL SPECIFICATIONS
Electrical Characteristics: VCC = 5V for L/M versions, VCC = 3.3V for T/S versions, VCC = 3V for R version, VCC =2.0V for F
version. Unless otherwise noted, TA = -40°C to +85°C. Typical values are at TA = +25°C. (Note 1).
Symbol
Parameter
Min
Typ
Max
Units
Test Conditions
VCC
VCC Range
1.2
—
5.5
V
ICC
Supply Current
—
7
15
A
VCC > VTH, for L/M/R/S/T/F
—10
15
A
VCC < VTH, for L/M/R/S/T
—6
12
A
VCC < VTH, for F
VTH
Reset Threshold
4.54
4.50
4.63
—
4.72
4.75
V
TC127_L; TA = +25°C
TA = -40°C to +85°C
4.30
4.25
4.38
—
4.46
4.50
V
TC127_M; TA = +25°C
TA = -40°C to +85°C
3.03
3.00
3.08
—
3.14
3.15
V
TC127_T; TA = +25°C
TA = -40°C to +85°C
2.88
2.85
2.93
—
2.98
3.00
V
TC127_S; TA = +25°C
TA = -40°C to +85°C
2.58
2.55
2.63
—
2.68
2.70
V
TC127_R; TA = +25°C
TA = -40°C to +85°C
1.71
1.70
1.75
—
1.79
1.80
V
TC127_F; TA = +25°C
TA = -40°C to +85°C
Reset Threshold Tempco
—
30
—
ppm/°C
VCC to Reset Delay
—
20
5
—
s
VCC = VTH to VTH – 125 mV;
L/M/R/S/T/F
tRP
Reset Active Time-out Period
140
280
560
ms
VCC = VTH(MAX)
tMR
MR Minimum Pulse Width
10
—
s
MR Glitch Immunity
—
0.1
—
s
tMD
MR to Reset Propagation Delay
—
0.5
—
s
VIH
MR Input Threshold
2.3
—
V
VCC > VTH(MAX), TC127_L/M
0.7 VCC
——
V
VCC > VTH(MAX), TC127_R/S/T/F
VIL
——
0.8
V
VCC > VTH(MAX), TC127_L/M
—
0.15 VCC
V
VCC > VTH(MAX), TC127_R/S/T/F
MR Pull-up Resistance
10
20
40
k
Ω
VOH
Reset Output Voltage High
(TC1271)
0.8 VCC
——
V
ISOURCE = 150 A;
VCC ≤ VTH(MIN)
Note 1:
Production testing done at TA = +25°C, over temperature limits ensured by design.
2:
RESET output for TC1270, Reset output for TC1271.