attiny25v ATMEL Corporation, attiny25v Datasheet - Page 175

• Manufacturer Part Number: attiny25v
• Description: Microcontroller With 2/4/8k Bytes In-system Programmable Flash
• Manufacturer: ATMEL Corporation

21.9
2586K–AVR–01/08
High-voltage Serial Programming Characteristics
Figure 21-6. High-voltage Serial Programming Timing
Table 21-11. High-voltage Serial Programming Characteristics T
t
WLWH_PFB
SDI (PB0), SII (PB1)
Symbol
t
t
t
t
t
SHOV
SHSL
SLSH
IVSH
SHIX
10% (Unless otherwise noted)
Parameter
SCI (PB3) Pulse Width High
SCI (PB3) Pulse Width Low
SDI (PB0), SII (PB1) Valid to SCI (PB3) High
SDI (PB0), SII (PB1) Hold after SCI (PB3) High
SCI (PB3) High to SDO (PB2) Valid
Wait after Instr. 3 for Write Fuse Bits
SDO (PB2)
SCI (PB3)
t
IVSH
t
SHSL
t
SHOV
t
A
SHIX
Min
125
125
= 25°C ± 10%, V
50
50
ATtiny25/45/85
Typ
2.5
16
t
Max
SLSH
CC
= 5.0V ±
Units
ms
ns
ns
ns
ns
ns
175