Datasheet

194
8197C–AVR–05/11
ATtiny261A/461A/861A
Note: 1. 2 t
CLCL
for f
ck
< 12 MHz, 3 t
CLCL
for f
ck
>= 12 MHz
19.9 Parallel Programming Characteristics
Figure 19-5. Parallel Programming Timing, Including some General Timing Requirements
Table 19-11. 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 20 MHz
t
CLCL
Oscillator Period V
CC
= 4.5V - 5.5V 50 ns
t
SHSL
SCK Pulse Width High 2 t
CLCL
(1)
ns
t
SLSH
SCK Pulse Width Low 2 t
CLCL
(1)
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 100 ns
Data & Contol
(DATA, XA0, XA1/BS2, PAGEL/BS1)
XTAL1
t
XHXL
t
WLWH
t
DVXH
t
XLDX
t
PLWL
t
WLRH
WR
RDY/BSY
t
PLBX
t
BVPH
t
XLWL
t
WLBX
t
BVWL
WLRL