參數(shù)資料
型號: ST72P63BH4T1
廠商: STMICROELECTRONICS
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PQFP48
封裝: 7 X 7 MM, ROHS COMPLIANT, LQFP-48
文件頁數(shù): 26/145頁
文件大?。?/td> 2984K
代理商: ST72P63BH4T1
ST7263BDx ST7263BHx ST7263BKx ST7263BE
121/145
14.9 Control pin characteristics
14.9.1 Asynchronous RESET pin
Subject to general operating conditions for VDD, fCPU, and TA unless otherwise specified.
Notes:
1. Hysteresis voltage between Schmitt trigger switching levels. Based on characterization results, not tested.
2. The IIO current sunk must always respect the absolute maximum rating specified in Section 14.2 and the sum of IIO (I/
O ports and control pins) must not exceed IVSS.
3. The RON pull-up equivalent resistor is based on a resistive transistor. This data is based on characterization results,
not tested in production.
4. To guarantee the reset of the device, a minimum pulse has to be applied to RESET pin. All short pulses applied on
RESET pin with a duration below th(RSTL)in can be ignored.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
VIH
Input High Level Voltage
0.7xVDD
VDD
V
VIL
Input Low Voltage
VSS
0.3xVDD
V
Vhys
Schmitt trigger voltage hysteresis 1)
400
mV
VOL
Output low level voltage 2)
VDD=5V
IIO=5mA
0.8
V
IIO=7.5mA
1.3
RON
Weak pull-up equivalent resistor 3)
VIN=VSS
VDD=5V
50
80
100
k
tw(RSTL)out Generated reset pulse duration
External pin or
internal reset sources
6
30
1/fSFOSC
s
th(RSTL)in External reset pulse hold time
4)
5
s
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