![](http://datasheet.mmic.net.cn/370000/TC1271TERC_datasheet_16735882/TC1271TERC_2.png)
TC1270/TC1271
DS21381B-page 2
2002 Microchip Technology Inc.
1.0
ELECTRICAL
CHARACTERISTICS
Absolute Maximum Ratings*
Supply Voltage (V
CC
to GND) .............................+6.0V
RESET, RESET..........................-0.3V to (V
CC
+ 0.3V)
Input Current, V
CC
...............................................20mA
Output Current, RESET, RESET.........................20mA
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.
TC1270/TC1271 ELECTRICAL SPECIFICATIONS
Electrical Characteristics:
V
CC
= 5V for L/M versions, V
CC
= 3.3V for T/S versions, V
CC
= 3V for R version, V
CC
= 2.0V for F
version. T
A
= -40°C to +85°C unless otherwise noted. Typical values are at T
A
= +25°C. (Note 1).
Symbol
Parameter
Min
Typ
Max
Units
Test Conditions
V
CC
I
CC
V
CC
Range
Supply Current
1.2
—
—
—
4.54
4.50
4.30
4.25
3.03
3.00
2.88
2.85
2.58
2.55
1.71
1.70
—
—
—
140
10
—
—
2.3
—
0.7 V
CC
—
10
—
7
10
6
4.63
—
4.38
—
3.08
—
2.93
—
2.63
—
1.75
—
30
20
5
280
—
0.1
0.5
—
—
—
—
20
5.5
15
15
12
4.72
4.75
4.46
4.50
3.14
3.15
2.98
3.00
2.68
2.70
1.79
1.80
—
—
—
560
—
—
—
—
0.8
—
V
μ
A
V
> V
TH
, for L/M/R/S/T/F
V
CC
< V
TH
, for L/M/R/S/T
V
CC
< V
TH
, for F
TC127_L; T
A
= +25°C
T
A
= -40°C to +85°C
TC127_M; T
A
= +25°C
T
A
= -40°C to +85°C
TC127_T; T
A
= +25°C
T
A
= -40°C to +85°C
TC127_S; T
A
= +25°C
T
A
= -40°C to +85°C
TC127_R; T
A
= +25°C
T
A
= -40°C to +85°C
TC127_F; T
A
= +25°C
T
A
= -40°C to +85°C
V
TH
Reset Threshold
V
Reset Threshold Tempco
V
CC
to Reset Delay
ppm/°C
μ
sec
V
CC
= V
TH
to V
TH
– 125mV; L/M/R/S/T/F
t
RP
Reset Active Timeout Period
MR Minimum Pulse Width
MR Glitch Immunity
MR to Reset Propagation Delay
MR Input Threshold
msec
μ
sec
μ
sec
μ
sec
V
V
CC
= V
TH(MAX)
t
MR
t
MD
V
IH
V
IL
V
IH
V
IL
V
CC
> V
TH(MAX)
,
TC127_L/M
V
CC
> V
TH(MAX)
,
TC127_R/S/T/F
0.15 V
CC
40
V
MR Pull-up Resistance
k
Note
1:
2:
Production testing done at T
= +25°C, over temperature limits ensured by design.
RESET output for TC1270, RESET output for TC1271.