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ATtiny25 数据表(PDF) 152 Page - ATMEL Corporation

部件名 ATtiny25
功能描述  8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash
PDF  196 Pages
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制造商  ATMEL [ATMEL Corporation]
网页  http://www.atmel.com
标志 ATMEL - ATMEL Corporation

ATtiny25 数据表(HTML) 152 Page - ATMEL Corporation

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152
7598H–AVR–07/09
ATtiny25/45/85
22.3
External Clock Drive
Note:
1. All DC Characteristics contained in this data sheet result from actual silicon characterization.
Figure 22-2. Maximum Frequency vs. V
CC
Table 22-2.
External Clock Drive
(1). PRELIMINARY
Symbol
Parameter
VCC = 2.7 - 5.5V
VCC = 4.5 -
5.5V
Units
Min.
Max.
Min.
Max.
1/tCLCL
Clock Frequency
0
8
0
16
MHz
tCLCL
Clock Period
100
50
ns
tCHCX
High Time
40
20
ns
tCLCX
Low Time
40
20
ns
tCLCH
Rise Time
1.6
0.5
µs
tCHCL
Fall Time
1.6
0.5
µs
Δt
CLCL
Change in period from one clock cycle to
the next
22
%
16 MHz
8 MHz
2.7V
4.5V
5.5V
Safe Operating
Area



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