AT89C5131-PLTIL ATMEL Corporation, AT89C5131-PLTIL Datasheet - Page 161

• Manufacturer Part Number: AT89C5131-PLTIL
• Description: 8-bit Flash Microcontroller with Full Speed USB Device
• Manufacturer: ATMEL Corporation

External Data Memory Write
Cycle
4136B–USB–09/03
PORT 0
PORT 2
PSEN
ALE
WR
OR SFR-P2
ADDRESS
Table 117. AC Parameters for a Variable Clock
Symbol
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
WLWH
QVWX
QVWH
WHQX
RHDX
AVWL
WHLH
WHLH
RLRH
RLDV
RHDZ
AVDV
LLDV
LLWL
LLWL
RLAZ
A0-A7
T
T
LLAX
AVWL
T
LLWL
Type
Max
Max
Max
Max
Max
Max
Max
Min
Min
Min
Min
Min
Min
Min
Min
Min
ADDRESS A8-A15 OR SFR P2
T
QVWX
Standard
Clock
3 T + x
6 T - x
6 T - x
5 T - x
2 T - x
8 T - x
9 T - x
3 T - x
4 T - x
7 T - x
T + x
T - x
T - x
T - x
x
x
T
QVWH
T
DATA OUT
WLWH
X2 Clock
1.5 T + x
0.5 T + x
2.5 T - x
4.5 T - x
1.5 T - x
0.5 T - x
3.5 T - x
0.5 T - x
0.5 T - x
3 T - x
3 T - x
2 T - x
4T -x
T - x
x
x
T
WHLH
X Parameter
20
20
25
20
40
60
25
25
25
15
25
10
15
15
T
0
0
AT89C5131
WHQX
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
161