参数资料
型号: ST72323K1T5/XXX
厂商: STMICROELECTRONICS
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PQFP32
封装: 7 X 7 MM, PLASTIC, LQFP-32
文件页数: 15/140页
文件大小: 1386K
代理商: ST72323K1T5/XXX
ST72323
111/140
11.9 CONTROL PIN CHARACTERISTICS
11.9.1 Asynchronous RESET Pin
Subject to general operating conditions for VDD, fCPU, and TA unless otherwise specified.
Notes:
1. Data based on characterization results, not tested in production.
2. Hysteresis voltage between Schmitt trigger switching levels.
3. The IIO current sunk must always respect the absolute maximum rating specified in Section 11.2.2 and the sum of IIO
(I/O ports and control pins) must not exceed IVSS.
4. To guarantee the reset of the device, a minimum pulse has to be applied to the RESET pin. All short pulses applied on
the RESET pin with a duration below th(RSTL)in can be ignored.
5. The reset network (the resistor and two capacitors) protects the device against parasitic resets, especially in noisy en-
vironments.
6. Data guaranteed by design, not tested in production.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
VIL
Input low level voltage 1)
0.3xVDD
V
VIH
Input high level voltage 1)
0.7xVDD
Vhys
Schmitt trigger voltage hysteresis 2)
2.5
VOL
Output low level voltage 3)
VDD=5V
IIO=+2mA
0.2
0.5
IIO
Driving current on RESET pin
2
mA
RON
Weak pull-up equivalent resistor
VDD=5V
20
30
120
k
tw(RSTL)out Generated reset pulse duration
Internal reset sources
20
30
426)
s
th(RSTL)in External reset pulse hold time
4)
2.5
s
tg(RSTL)in Filtered glitch duration
5)
200
ns
1
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