TS80C54 ATMEL [ATMEL Corporation], TS80C54 Datasheet - Page 52

• Manufacturer Part Number: TS80C54
• Description: 8-bit CMOS Microcontroller 16/32 Kbytes ROM/OTP
• Manufacturer: ATMEL [ATMEL Corporation]

19.5.6
19.5.7
52
Symbol
Speed
T
T
T
T
T
QVHX
XHQX
XHDX
XHDV
XLXL
AT/TS8xC54/8X2
External Data Memory Read Cycle
Serial Port Timing - Shift Register Mode
PORT 0
PORT 2
Min
300
200
ALE
PSEN
30
0
RD
40 MHz
-M
Figure 19-8. External Data Memory Read Cycle
Table 19-11. Symbol Description
Table 19-12. AC Parameters for a Fix Clock
T
T
T
T
T
XLXL
QVHX
XHQX
XHDX
XHDV
OR SFR-P2
ADDRESS
Max
117
Min
60 MHz equiv.
200
117
13
0
X2 mode
30 MHz
-V
Symbol
Max
34
A0-A7
T
LLAX
T
AVWL
standard mode 40
T
Min
300
200
30
LLWL
0
T
MHz
AVDV
-V
T
LLDV
ADDRESS A8-A15 OR SFR P2
Max
117
T
T
RLAZ
R L D V
40 MHz equiv.
Min
300
200
Serial port clock cycle time
Output data set-up to clock rising edge
Output data hold after clock rising edge
Input data hold after clock rising edge
Clock rising edge to input data valid
30
0
X2 mode
20 MHz
-L
T
Max
RLRH
117
DATA IN
standard mode
Min
400
283
47
0
Parameter
T
T
30 MHz
WHLH
RHDX
-L
Max
200
T
RHDZ
4431E–8051–04/06
Units
ns
ns
ns
ns
ns