參數(shù)資料
型號： ST72C254G2M6
英文描述： 8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY. ADC. 16-BIT TIMERS. SPI.
中文描述： 8位單電壓閃存微控制器。 ADC的。 16位定時器。的SPI。
文件頁數(shù)： 22/140頁
文件大小： 1349K
代理商： ST72C254G2M6
ST72104G, ST72215G, ST72216G, ST72254G
118/140
14.8 I/O PORT PIN CHARACTERISTICS
14.8.1 General Characteristics
Subject to general operating conditions for VDD, fOSC, and TA unless otherwise specified.
Figure 78. Two typical Applications with unused I/O Pin
Figure 79. Typical IPU vs. VDD with VIN=VSS
Notes:
1. Unless otherwise specified, typical data are based on TA=25°C and VDD=5V.
2. Data based on characterization results, not tested in production.
3. Hysteresis voltage between Schmitt trigger switching levels. Based on characterization results, not tested.
4. Configuration not recommended, all unused pins must be kept at a fixed voltage: using the output mode of the I/O for
example or an external pull-up or pull-down resistor (see Figure 78). Data based on design simulation and/or technology
characteristics, not tested in production.
5. The RPU pull-up equivalent resistor is based on a resistive transistor (corresponding IPU current characteristics de-
scribed in Figure 79). This data is based on characterization results, tested in production at VDD max.
6. Data based on characterization results, not tested in production.
7. To generate an external interrupt, a minimum pulse width has to be applied on an I/O port pin configured as an external
interrupt source.
Symbol
Parameter
Conditions
Min
Typ 1)
Max
Unit
VIL
Input low level voltage 2)
0.3xVDD
V
VIH
Input high level voltage 2)
0.7xVDD
Vhys
Schmitt trigger voltage hysteresis 3)
400
mV
IL
Input leakage current
VSS≤VIN≤VDD
±1
A
IS
Static current consumption 4)
Floating input mode
200
RPU
Weak pull-up equivalent resistor 5)
VIN=VSS
VDD=5V
62
120
250
k
VDD=3.4V
170
200
300
CIO
I/O pin capacitance
5
pF
tf(IO)out
Output high to low level fall time 6)
CL=50pF
Between 10% and 90%
25
ns
tr(IO)out
Output low to high level rise time 6)
25
tw(IT)in
External interrupt pulse time 7)
1tCPU
10k
UNUSED I/O PORT
ST72XXX
10k
UNUSED I/O PORT
ST72XXX
VDD
3.2
3.5
4
4.5
5
5.5
Vdd [V]
0
10
20
30
40
50
60
70
Ipu [A]
Ta=-40°C
Ta=25°C
Ta=85°C
Ta=125°C
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ST72C254G2M6 制造商:STMicroelectronics 功能描述:8BIT MCU FLASH 8K 72C254 SOIC28
ST72C254G2M6/TR 制造商:ST 功能描述:0
ST72C254G2M6E 制造商:STMicroelectronics 功能描述:8K S028 LEADFREE - Rail/Tube
ST72C314J2B1 制造商:STMicroelectronics 功能描述:ST72FLASH 8K - Bulk
ST72C314J2T6 功能描述:8位微控制器 -MCU Flash 16K SPI/SCI RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
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