63
ATtiny15L
1187H–AVR–09/07
Low-voltage Serial
Programming
Characteristics
Figure 35. Low-voltage Serial Programming Timing
Table 28. Low-voltage Serial Programming Characteristics, T
A
= -40°C to 85°C,
V
CC
= 2.7 - 5.5V (Unless Otherwise Noted)
Symbol Parameter Min Typ Max Units
1/t
CLCL
RC Oscillator Frequency (V
CC
= 2.7 - 5.5V) 0.8 1.6 MHz
t
CLCL
RC Oscillator Period (V
CC
= 2.7 - 5.5V) 625.0 1250.0 ns
t
SHSL
SCK Pulse Width High 2.0 t
CLCL
ns
t
SLSH
SCK Pulse Width Low 2.0 t
CLCL
ns
t
OVSH
MOSI Setup to SCK High t
CLCL
ns
t
SHOX
MOSI Hold after SCK High 2.0 t
CLCL
ns
t
SLIV
SCK Low to MISO Valid 10.0 16.0 32.0 ns
Table 29. Minimum Wait Delay after the Chip Erase Instruction
Symbol Minimum Wait Delay
t
WD_ERASE
8.2 ms
Table 30. Minimum Wait Delay after Writing a Flash or EEPROM Location
Symbol Minimum Wait Delay
t
WD_FLASH
4.1 ms
t
WD_EEPROM
8.2 ms
OSI
ISO
SCK
t
OVSH
t
SHSL
t
SLSH
t
SHOX
t
SL