参数资料
型号: TC1232EOE
厂商: Microchip Technology
文件页数: 6/20页
文件大小: 0K
描述: IC MPU MONITOR 4.5V 16-SOIC
标准包装: 47
类型: 简单复位/加电复位
监视电压数目: 1
输出: 开路漏极或开路集电极
复位: 高有效/低有效
复位超时: 最小为 250 ms
电压 - 阀值: 4.37V,4.62V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 16-SOIC(0.295",7.50mm 宽)
供应商设备封装: 16-SOIC
包装: 管件
TC1232
3.0
PIN DESCRIPTIONS
The descriptions of the pins are listed in Table 3-1.
TABLE 3-1:
Pin No.
PIN FUNCTION TABLES
8-pin
PDIP,
SOIC
1
16-pin
SOIC
2
Symbol
PB RST
Pin
Type
I
Buffer/
Driver
Type
ST
Push-button Reset Input.
Function
Input for a Manual Reset Switch. This input debounces (ignores) pulses
less than 1 ms in duration and is ensured to recognize inputs of 20 ms or
greater.
L = Manual Reset Switch is Active, Force RST/RST pins Active
H = Manual Reset Switch is Inactive. State of RST/RST pins determined by
other system conditions.
2
4
TD
I
ST
Time Delay Input.
The voltage level on this input determines the watchdog timer time-out
period.
TD = 0V → t TD = 150 ms
TD = Open → t TD = 600 ms
TD = V CC → t TD = 1.2 sec
3
6
TOL
I
ST
Tolerance Input.
TOL = GND, Max Voltage Trip Point (V CCTP ) = 4.75V (5% tolerance)
TOL = V CC , Max Voltage Trip Point (V CCTP ) = 4.5V (10% tolerance)
4
5
8
9
GND
RST
O
P
Push
The ground reference for the device.
Reset Output (Active-High)
Pull
Goes active (High) if one of these conditions occurs:
1. If V CC fall s below the selected reset voltage threshold.
2. If PB RST pin is forced low.
3. If ST pin is not strobed within the minimum selected time-out period.
(see TD pin)
4. During power-up
6
11
RST
O
Open
Reset Output (Active-Low)
Drain
Goes active (Low) if one of these conditions occurs:
1. If V CC fall s below the selected reset voltage threshold.
2. If PB RST pin is forced low.
3. If ST pin is not strobed within the minimum selected time-out period.
(see TD pin)
4. During power-up
7
13
ST
I
ST
Strobe Input
Input for Watchdog Timer. WDT period determined by state of TD pin
Falling Edge → Resets Watchdog Timer counter (no time-out)
8
15
1,3,5,
V CC
NC
P
The positive supply (+5V) for the device.
No internal connection.
7,10,1
2,16
DS21370C-page 6
Preliminary
? 2005 Microchip Technology Inc.
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