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Atmel ATtiny25 User Manual

Atmel ATtiny25
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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
V
CC
= 2.7 - 5.5V
V
CC
= 4.5 -
5.5V
UnitsMin. Max. Min. Max.
1/t
CLCL
Clock Frequency 0 8 0 16 MHz
t
CLCL
Clock Period 100 50 ns
t
CHCX
High Time 40 20 ns
t
CLCX
Low Time 40 20 ns
t
CLCH
Rise Time 1.6 0.5 µs
t
CHCL
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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Atmel ATtiny25 Specifications

General IconGeneral
BrandAtmel
ModelATtiny25
CategoryMicrocontrollers
LanguageEnglish

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