Datasheet

184
8006H–AVR–10/09
ATtiny24/44/84
20.9 High-Voltage Serial Programming Characteristics
Figure 20-6. High-voltage Serial Programming Timing
Table 20-13. High-voltage Serial Programming Characteristics
T
A
= 25°C, V
CC
= 5V (Unless otherwise noted)
Symbol Parameter Min Typ Max Units
t
SHSL
SCI (PB0) Pulse Width High 125 ns
t
SLSH
SCI (PB0) Pulse Width Low 125 ns
t
IVSH
SDI (PA6), SII (PB1) Valid to SCI (PB0) High 50 ns
t
SHIX
SDI (PA6), SII (PB1) Hold after SCI (PB0) High 50 ns
t
SHOV
SCI (PB0) High to SDO (PA4) Valid 16 ns
t
WLWH_PFB
Wait after Instr. 3 for Write Fuse Bits 2.5 ms
SDI (PA6), SII (PA5)
SDO (PA4)
SCI (PB0)
t
IVSH
t
SHSL
t
SLSH
t
SHIX
t
SHOV