TS80C52X2 ATMEL Corporation, TS80C52X2 Datasheet - Page 46

• Manufacturer Part Number: TS80C52X2
• Description: 8-bit Microcontroller
• Manufacturer: ATMEL Corporation

External Data Memory Read
Cycle
Figure 20. External Data Memory Read Cycle
Serial Port Timing - Shift
Register Mode
46
TS8xCx2X2
PORT 0
PORT 2
ALE
PSEN
RD
OR SFR-P2
ADDRESS
Table 32. Symbol Description
Table 33. 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
A0-A7
T
LLAX
T
AVWL
Min
300
200
30
0
40 MHz
T
LLWL
-M
Max
T
117
AVDV
T
LLDV
ADDRESS A8-A15 OR SFR P2
Min
200
117
13
X2 mode
0
30 MHz
60 MHz
equiv.
T
-V
T
RLAZ
RLDV
Max
34
Min
300
200
standard
30
mode 40
0
T
MHz
RLRH
-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
DATA IN
Min
300
200
30
X2 mode
0
20 MHz
40 MHz
T
equiv.
T
WHLH
RHDX
-L
Max
117
www.DataSheet4U.com
T
RHDZ
Min
400
283
standard
47
0
30 MHz
mode
-L
Max
200
4184I–8051–02/08
Units
ns
ns
ns
ns
ns