参数资料
型号: TC1270AMVRCTR
厂商: Microchip Technology
文件页数: 4/48页
文件大小: 0K
描述: IC RESET MONITOR 4.38V SOT143-4
标准包装: 3,000
类型: 简单复位/加电复位
监视电压数目: 1
输出: 推挽式,图腾柱
复位: 低有效
复位超时: 最小为 140 ms
电压 - 阀值: 4.38V
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: TO-253-4,TO-253AA
供应商设备封装: SOT-143
包装: 带卷 (TR)
TC1270A/70AN/71A
ELECTRICAL CHARACTERISTICS (CONTINUED)
Electrical Characteristics: Unless otherwise noted, V DD = 5V for L/M versions, V DD = 3.3V for T/S versions,
V DD = 3V for R version, T A = -40°C to +125°C. Typical values are at T A = +25°C.
Parameter
Reset Threshold Tempco
Reset Trip Point
Hysteresis ( 1 )
MR Input High Threshold
MR Input Low Threshold
MR Pull-up Resistance
Open-Drain High Voltage
Sym
V HYS
V IH
V IL
V ODH
Min
2.3
0.7 V DD
10
Typ ( 1 )
±30
0.3
18.5
Max
0.8
0.25 V DD
40
13.5
Units
ppm/°C
%
V
V
V
V
k ?
V
Test Conditions
Percentage of V TRIP Voltage
V DD > V TRIP(MAX) , L/M only
V DD > V TRIP(MAX) , R/S/T only
V DD > V TRIP(MAX) , L/M only
V DD > V TRIP(MAX) , R/S/T only
Open-Drain Output pin only.
on Output
V DD = 3.0V, Time voltage > 5.5
applied ? 100s. Current into pin
limited to 2 mA +25°C operation
recommended ( 6 )
Reset
TC1270A/
V OL
0.3
V
R/S/T only,
Output
TC1270AN
I SINK = 1.2 mA, V DD = V TRIP(MIN)
Voltage
Low ( 2 )
TC1271A
TC1270A/
0.3
0.4
V
V
R/S/T only,
I SINK = 1.2 mA, V DD = V TRIP(MAX)
L/M only,
TC1270AN
I SINK = 3.2 mA, V DD = V TRIP(MIN)
TC1271A
0.3
V
L/M only,
I SINK = 3.2 mA, V DD = V TRIP(MAX)
TC1270A/
0.3
V
L/M only,
TC1270AN
I SINK = 50 μA, V DD > 1.0V
Reset
TC1270A
V OH
0.8 V DD
V
R/S/T only,
Output
I SOURCE = 500 μA, V DD = V TRIP(MAX)
Voltage
High ( 2 )
TC1270A
TC1271A
V DD - 1.5
0.8 V DD
V
V
L/M only,
I SOURCE = 800 μA, V DD = V TRIP(MAX)
I SOURCE = 500 μA, V DD ? V TRIP(MIN)
Input Leakage Current
Open-Drain RST Output
I IL
I OLOD
±1
1
μA
μA
V PIN = V DD
Open-Drain configuration only.
Leakage
Capacitive Loading
C IO
50
pF
Specification on Output
Pins
Note 1:
2:
3:
4:
5:
6:
Data in the Typical (“Typ”) column is at 5V, +25 ? C, unless otherwise stated.
RST output for TC1270A and TC1270AN, RST output for TC1271A.
TC127XA refers to the TC1270A, TC1270AN or TC1271A device.
Hysteresis is within the V TRIP(MIN) to V TRIP(MAX) window.
Custom-ordered voltage trip point. Minimum order volume requirement.
This specification allows this device to be used in PIC ? microcontroller applications that require the
In-Circuit Serial Programming? (ICSP?) feature (see device-specific programming specifications for
voltage requirements). The total time that the RST pin can be above the maximum device operational
voltage (5.5V) is 100s. Current into the RST pin should be limited to 2 mA. It is recommended that the
device operational temperature be maintained between 0°C to +70°C (+25°C preferred). For additional
information, refer to Figure 2-41 .
DS22035D-page 4
? 2007-2011 Microchip Technology Inc.
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