atmega32c1 ATMEL Corporation, atmega32c1 Datasheet - Page 319

• Manufacturer Part Number: atmega32c1
• Description: Atmega32m1 Automotive 8-bit Avr Microcontroller With 32k/64k Bytes In-system Programmable Flash
• Manufacturer: ATMEL Corporation

7647A–AVR–02/08
Figure 25-7. Parallel Programming Timing, Reading Sequence (within the Same Page) with
Note:
Table 25-3.
Symbol
V
I
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
PP
DVXH
XLXH
XHXL
XLDX
XLWL
XLPH
PLXH
BVPH
PHPL
PLBX
WLBX
PLWL
BVWL
WLWH
WLRL
WLRH
WLRH_CE
PP
XTAL1
DATA
BS1
XA0
XA1
OE
1. ggThe timing requirements shown in
reading operation.
Parameter
Programming Enable Voltage
Programming Enable Current
Data and Control Valid before XTAL1 High
XTAL1 Low to XTAL1 High
XTAL1 Pulse Width High
Data and Control Hold after XTAL1 Low
XTAL1 Low to WR Low
XTAL1 Low to PAGEL high
PAGEL low to XTAL1 high
BS1 Valid before PAGEL High
PAGEL Pulse Width High
BS1 Hold after PAGEL Low
BS2/1 Hold after WR Low
PAGEL Low to WR Low
BS1 Valid to WR Low
WR Pulse Width Low
WR Low to RDY/BSY Low
WR Low to RDY/BSY High
WR Low to RDY/BSY High for Chip Erase
Timing Requirements
Parallel Programming Characteristics, V
ADDR0 (Low Byte)
LOAD ADDRESS
(LOW BYTE)
t
XLOL
t
OLDV
(1)
(1)
READ DATA
(LOW BYTE)
DATA (Low Byte)
Figure 25-5
(2)
t
BVDV
CC
(i.e., t
ATmega32/64/M1/C1
= 5V ± 10%
DVXH
(HIGH BYTE)
READ DATA
Min.
11.5
200
150
150
150
150
3.7
7.5
DATA (High Byte)
67
67
67
67
67
67
67
0
0
0
, t
XHXL
, and t
Typ.
t
OHDZ
XLDX
LOAD ADDRESS
Max.
12.5
250
) also apply to
10
(LOW BYTE)
1
5
ADDR1 (Low Byte)
Units
µA
ms
ms
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
µs
V
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