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ATMEGA16 데이터시트(PDF) 287 Page - ATMEL Corporation

부품명 ATMEGA16
상세설명  8-bit AVR Microcontroller with 16K Bytes In-System Programmable Flash
PDF  315 Pages
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제조업체  ATMEL [ATMEL Corporation]
홈페이지  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

ATMEGA16 데이터시트(HTML) 287 Page - ATMEL Corporation

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ATmega16(L)
2466E–AVR–10/02
4] The sum of all IOH, for ports B3 - B7, XTAL2, D0 - D2, should not exceed 200 mA.
5] The sum of all IOH, for ports D3 - D7, should not exceed 200 mA.
6] The sum of all IOH, for ports C0 - C7, should not exceed 200 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. Minimum VCC for Power-down is 2.5V.
External Clock Drive
Waveforms
Figure 144. External Clock Drive Waveforms
External Clock Drive
Notes:
1. R should be in the range 3 k
Ω - 100 kΩ, and C should be at least 20 pF.
2. The frequency will vary with package type and board layout.
VIL1
VIH1
Table 117. External Clock Drive
Symbol
Parameter
VCC = 2.7V to 5.5VVCC = 4.5V to 5.5V
Units
Min
Max
Min
Max
1/tCLCL
Oscillator Frequency
0
8
0
16
MHz
tCLCL
Clock Period
125
62.5
ns
tCHCX
High Time
50
25
ns
tCLCX
Low Time
50
25
ns
tCLCH
Rise Time
1.6
0.5
µs
tCHCL
Fall Time
1.6
0.5
µs
Table 118. External RC Oscillator, Typical Frequencies (V
CC = 5)
R [k
Ω](1)
C [pF]
f
(2)
100
47
87 kHz
33
22
650 kHz
10
22
2.0 MHz



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