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ATtiny261-ESSZ Datasheet(PDF) 196 Page - ATMEL Corporation

Part # ATtiny261-ESSZ
Description  8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash
PDF  227 Pages
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Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

ATtiny261-ESSZ Datasheet(HTML) 196 Page - ATMEL Corporation

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196
7753C–AVR–07/09
ATtiny261/ATtiny461/ATtiny861
23.8
Serial Programming Characteristics
Figure 23-6. Serial Programming Waveforms
Figure 23-7. Serial Programming Timing
Note:
1. 2 t
CLCL for fck < 12 MHz, 3 tCLCL for fck >= 12 MHz
Table 23-8.
Serial Programming Characteristics, T
A = -40°C to 125°C, VCC = 2.7 - 5.5V
(Unless Otherwise Noted)
Symbol
Parameter
Min
Typ
Max
Units
1/tCLCL
Oscillator Frequency (ATtiny261/461/861V)
0
4
MHz
tCLCL
Oscillator Period (ATtiny261/461/861V)
250
ns
1/tCLCL
Oscillator Frequency (ATtiny261/461/861L, VCC =
2.7 - 5.5V)
010
MHz
tCLCL
Oscillator Period (ATtiny261/461/861L, VCC = 2.7 -
5.5V)
100
ns
1/tCLCL
Oscillator Frequency (ATtiny261/461/861, VCC = 4.5V
- 5.5V)
016
MHz
tCLCL
Oscillator Period (ATtiny261/461/861, VCC = 4.5V -
5.5V)
50
ns
tSHSL
SCK Pulse Width High
2 tCLCL*
ns
tSLSH
SCK Pulse Width Low
2 tCLCL*
ns
tOVSH
MOSI Setup to SCK High
tCLCL
ns
tSHOX
MOSI Hold after SCK High
2 tCLCL
ns
tSLIV
SCK Low to MISO Valid
TBD
TBD
TBD
ns
MSB
MSB
LSB
LSB
SERIAL CLOCK INPUT
(SCK)
SERIAL DATA INPUT
(MOSI)
(MISO)
SAMPLE
SERIAL DATA OUTPUT
MOSI
MISO
SCK
t
OVSH
t
SHSL
t
SLSH
t
SHOX
t
SLIV



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