TS87C51RD2 ATMEL Corporation, TS87C51RD2 Datasheet - Page 66

• Manufacturer Part Number: TS87C51RD2
• Description: (TS8xC51Rx2) High Performance 8-bit Microcontroller
• Manufacturer: ATMEL Corporation

11.5.4
66
Symbol
Speed
T
T
T
T
T
T
T
T
T
T
T
T
T
T
WLWH
QVWX
QVWH
WHQX
WHLH
RLRH
RHDX
RHDZ
AVDV
AVWL
RLDV
RLAZ
LLDV
LLWL
AT/TS8xC51Rx2
External Data Memory Characteristics
Min
130
130
160
50
75
10
15
10
0
40 MHz
-M
Table 11-8.
Max
100
160
165
100
Symbol
30
40
T
T
T
T
0
T
T
T
T
T
T
T
T
T
T
WLWH
QVWX
QVWH
WHQX
WHLH
RLRH
RHDX
RHDZ
AVDV
AVWL
RLDV
LLDV
LLWL
RLAZ
Min
60 MHz equiv.
107
85
85
30
47
0
7
9
7
AC Parameters for a Fix Clock
X2 mode
Parameter
RD Pulse Width
WR Pulse Width
RD to Valid Data In
Data Hold After RD
Data Float After RD
ALE to Valid Data In
Address to Valid Data In
ALE to WR or RD
Address to WR or RD
Data Valid to WR Transition
Data set-up to WR High
Data Hold After WR
RD Low to Address Float
RD or WR High to ALE high
30 MHz
-V
Max
100
60
18
98
70
27
0
standard mode 40
Min
135
135
165
55
80
15
17
15
0
MHz
-V
Max
102
165
175
35
95
35
0
40 MHz equiv.
Min
125
125
155
45
70
10
0
5
5
X2 mode
20 MHz
-L
Max
155
105
160
95
25
45
0
standard mode
Min
175
175
103
213
70
13
18
13
0
30 MHz
-L
Max
137
222
235
130
42
53
0
4188E–8051–08/06
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns