atmega3250v-8auatmega325v-8ai ATMEL Corporation, atmega3250v-8auatmega325v-8ai Datasheet - Page 277

• Manufacturer Part Number: atmega3250v-8auatmega325v-8ai
• Description: Atmega3250 8-bit Microcontroller With In-system Programmable Flash
• Manufacturer: ATMEL Corporation

27.6.15
2570L–AVR–08/07
Parallel Programming Characteristics
Figure 27-7. Parallel Programming Timing, Including some General Timing Requirements
Figure 27-8. Parallel Programming Timing, Loading Sequence with Timing Requirements
Note:
PAGEL
XTAL1
(DATA, XA0/1, BS1, BS2)
DATA
BS1
XA0
XA1
1. The timing requirements shown in
ing operation.
Data & Contol
RDY/BSY
ADDR0 (Low Byte)
LOAD ADDRESS
PAGEL
XTAL1
(LOW BYTE)
WR
t
t
BVPH
DVXH
LOAD DATA
(LOW BYTE)
DATA (Low Byte)
t
t
XHXL
PHPL
Figure 27-7
ATmega325/3250/645/6450
t
t
t
t
t
XLXH
XLDX
XLWL
PLBX
PLWL
(i.e., t
t
BVWL
(HIGH BYTE)
LOAD DATA
DATA (High Byte)
DVXH
t
WLWH
t
XLPH
WLRL
, t
LOAD DATA
XHXL
, and t
t
PLXH
t
WLBX
XLDX
LOAD ADDRESS
(LOW BYTE)
) also apply to load-
ADDR1 (Low Byte)
t
WLRH
(1)
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