
217
8008H鈥揂VR鈥�04/11
ATtiny48/88
Notes:
1.
t
WLRH is valid for the Write Flash, Write EEPROM, Write Fuse bits and Write Lock bits
commands.
2.
tWLRH_CE is valid for the Chip Erase command.
22.11 Serial Programming Characteristics
Figure 22-9. Serial Programming Timing
Figure 22-10. Serial Programming Waveforms
tWLRH
3.7
4.5
ms
tWLRH_CE
WR Low to RDY/BSY High for Chip Erase
7.5
9
ms
tXLOL
CLKI Low to OE Low
0
ns
tBVDV
BS1 Valid to DATA valid
0
250
ns
tOLDV
OE Low to DATA Valid
250
ns
tOHDZ
OE High to DATA Tri-stated
250
ns
Table 22-9.
Parallel Programming Characteristics, T
A = 25掳C, VCC = 5V (Continued)
Symbol
Parameter
Min
Typ
Max
Units
MOSI
MISO
SCK
t
OVSH
t
SHSL
t
SLSH
t
SHOX
t
SLIV
MSB
LSB
SERIAL CLOCK INPUT
(SCK)
SERIAL DATA INPUT
(MOSI)
(MISO)
SAMPLE
SERIAL DATA OUTPUT