10 serial programming characteristics, Figure, Figure 20-7 – Rainbow Electronics ATtiny43U User Manual
Page 164: Attiny43u, Mosi miso sck t
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164
8048B–AVR–03/09
ATtiny43U
20.10 Serial Programming Characteristics
Figure 20-6. Serial Programming Timing
Figure 20-7. Serial Programming Waveforms
Table 20-11. Serial Programming Characteristics, T
A
= -40
°
C to 85
°
C, V
CC
= 1.8 - 5.5V (Unless Otherwise Noted)
Symbol
Parameter
Min
Typ
Max
Units
1/t
CLCL
Oscillator Frequency
0
4
MHz
t
CLCL
Oscillator Period
250
ns
1/t
CLCL
Oscillator Frequency (V
CC
= 4.5V - 5.5V)
0
8
MHz
t
CLCL
Oscillator Period (V
CC
= 4.5V - 5.5V)
125
ns
t
SHSL
SCK Pulse Width High
2 t
CLCL
ns
t
SLSH
SCK Pulse Width Low
2 t
CLCL
ns
t
OVSH
MOSI Setup to SCK High
t
CLCL
ns
t
SHOX
MOSI Hold after SCK High
2 t
CLCL
ns
t
SLIV
SCK Low to MISO Valid
TBD
TBD
TBD
ns
MOSI
MISO
SCK
t
OVSH
t
SHSL
t
SLSH
t
SHOX
t
SLIV
MSB
MSB
LSB
LSB
SERIAL CLOCK INPUT
(SCK)
SERIAL DATA INPUT
(MOSI)
(MISO)
SAMPLE
SERIAL DATA OUTPUT
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