TS80C51RA2 Atmel Corporation, TS80C51RA2 Datasheet - Page 67

• Manufacturer Part Number: TS80C51RA2
• Description: High Performance 8-bit Microcontroller
• Manufacturer: Atmel Corporation

Serial Port Timing - Shift
Register Mode
4188A–8051–10/02
PORT 0
PORT 2
ALE
PSEN
RD
OR SFR-P2
ADDRESS
Figure 27. External Data Memory Read Cycle
Table 43. AC Parameters for a Fix Clock
Symbol
T
T
T
T
T
XLXL
QVHX
XHQX
XHDX
XHDV
Symbol
Speed
T
T
T
T
T
QVHX
XHQX
XHDX
XHDV
XLXL
Min
300
200
A0-A7
30
0
40 MHz
T
LLAX
T
-M
AVWL
Max
T
117
LLWL
T
AVDV
Min
200
T
117
X2 mode
13
0
30 MHz
60 MHz
LLDV
equiv.
ADDRESS A8-A15 OR SFR P2
-V
Max
34
T
T
RLAZ
RLDV
Min
300
200
standard
30
mode 40
0
MHz
-V
Parameter
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
Max
117
T
RLRH
Min
300
200
X2 mode
30
0
DATA IN
20 MHz
40 MHz
equiv.
-L
Max
T
117
T
WHLH
RHDX
TS8xC51Rx2
Min
400
283
standard
47
0
30 MHz
mode
T
-L
RHDZ
Max
200
Units
ns
ns
ns
ns
ns
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