參數(shù)資料
型號： AT80C51-25R
廠商： TEMIC SEMICONDUCTORS
元件分類： 微控制器/微處理器
英文描述： 8-BIT, MROM, 25 MHz, MICROCONTROLLER, PQFP44
文件頁數(shù)： 20/170頁
文件大小： 4133K
代理商： AT80C51-25R
116
ATtiny4/5/9/10 [DATASHEET]
8127F–AVR–02/2013
Notes:
1. “Min” means the lowest value where the pin is guaranteed to be read as high.
2. “Max” means the highest value where the pin is guaranteed to be read as low.
3. Although each I/O port can sink more than the test conditions (10 mA at VCC = 5V, 5 mA at VCC = 3V) under steady state
conditions (non-transient), the sum of all IOL (for all ports) should not exceed 60 mA. If IOL exceeds the test conditions, VOL
may exceed the related specification. Pins are not guaranteed to sink current greater than the listed test condition.
4. Although each I/O port can source more than the test conditions (10 mA at VCC = 5V, 5 mA at VCC = 3V) under steady state
conditions (non-transient), the sum of all IOH (for all ports) should not exceed 60 mA. If IOH exceeds the test condition, VOH
may exceed the related specification. Pins are not guaranteed to source current greater than the listed test condition.
5. The RESET pin must tolerate high voltages when entering and operating in programming modes and, as a consequence,
has a weak drive strength as compared to regular I/O pins. See Figure 17-25 on page 134, and Figure 17-26 on page 134.
6. Values are with external clock using methods described in “Minimizing Power Consumption” on page 24. Power Reduction
is enabled (PRR = 0xFF) and there is no I/O drive.
7. BOD Disabled.
16.3
Speed
The maximum operating frequency of the device depends on V
CC . The relationship between supply voltage and
maximum operating frequency is piecewise linear, as shown in Figure 16-1.
Figure 16-1. Maximum Frequency vs. V
CC
ICC
Power Supply Current
Active 1MHz, VCC = 2V
0.2
0.5
mA
Active 4MHz, VCC = 3V
0.8
1.2
mA
Active 8MHz, VCC = 5V
2.7
4
mA
Idle 1MHz, VCC = 2V
0.02
0.2
mA
Idle 4MHz, VCC = 3V
0.13
0.5
mA
Idle 8MHz, VCC = 5V
0.6
1.5
mA
Power-down mode
WDT enabled, VCC = 3V
4.5
10
A
WDT disabled, VCC = 3V
0.15
2
A
Table 16-1.
DC Characteristics. T
A = -40C to +85C (Continued)
Symbol
Parameter
Condition
Min.
Typ.
Max.
Units
4 MHz
8 MHz
1.8V
5.5V
4.5V
2.7V
12 MHz
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