参数资料
型号: ST72F623F2B1
厂商: STMICROELECTRONICS
元件分类: 微控制器/微处理器
英文描述: 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PDIP20
封装: 0.300 INCH, LEAD FREE, SHRINK, PLASTIC, DIP-20
文件页数: 17/139页
文件大小: 1264K
代理商: ST72F623F2B1
113/139
Doc ID 6996 Rev 5
I/O PORT PIN CHARACTERISTICS (Cont’d)
Figure 71. Typical VDD-VOH vs. VDD (high sink port)
12.9 CONTROL PIN CHARACTERISTICS
12.9.1 Asynchronous RESET Pin
Subject to general operating conditions for VDD, fCPU, and TA unless otherwise specified.
Notes:
1. Unless otherwise specified, typical data are based on TA=25°C and VDD=5V, not tested in production.
2. Data guaranteed by design.
3. Hysteresis voltage between Schmitt trigger switching levels. Based on characterization results, not tested.
4. The IIO current sunk must always respect the absolute maximum rating specified in Section 12.2 and the sum of IIO (I/
O ports and control pins) must not exceed IVSS.
5. The RON pull-up equivalent resistor is based on a resistive transistor (corresponding ION current characteristics de-
scribed in Figure 72). This data is based on characterization results, not tested in production.
6. 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.
0
0.01
0.02
0.03
0.04
0.05
0.06
0.07
0.08
0.09
3.5
4
4.5
5
5.5
6
Vdd (V)
V
DD
-V
OD
(V)
at
I
IO
=-2mA
0
0.05
0.1
0.15
0.2
0.25
3.5
4
4.5
5
5.5
6
Vdd (V)
V
DD
-V
OD
(V)
at
I
IO
=-5mA
Symbol
Parameter
Conditions
Min
Typ 1)
Max
Unit
VIH
Input High Level Voltage
0.7xVDD
VDD
V
VIL
Input Low Voltage
VSS
0.3xVDD
V
Vhys
Schmitt trigger voltage hysteresis 3)
400
mV
VOL
Output low level voltage 4)
VDD=5V
IIO=5mA
1 2)
V
IIO=2mA
0.4 2)
RON
Weak pull-up equivalent resistor 5)
VIN=VSS
60
k
Ω
tw(RSTL)out Generated reset pulse duration
External pin or
internal reset sources
6
30
1/fSFOSC
μs
th(RSTL)in External reset pulse hold time
6)
10
μs
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