參數(shù)資料
型號(hào): TS80C51RA2-LCLB
廠商: Atmel Corp.
英文描述: High Performance 8-bit Microcontrollers
中文描述: 高性能8位微控制器
文件頁(yè)數(shù): 68/74頁(yè)
文件大小: 903K
代理商: TS80C51RA2-LCLB
68
Rev. C - 06 March, 2001
TS80C51RA2/RD2
TS83C51RB2/RC2/RD2
TS87C51RB2/RC2/RD2
10.5.6. External Data Memory Read Cycle
Figure 27. External Data Memory Read Cycle
10.5.7. Serial Port Timing - Shift Register Mode
Table 43. AC Parameters for a Fix Clock
Table 42. Symbol Description
Symbol
Parameter
T
XLXL
Serial port clock cycle time
T
QVHX
Output data set-up to clock rising edge
T
XHQX
Output data hold after clock rising edge
T
XHDX
Input data hold after clock rising edge
T
XHDV
Clock rising edge to input data valid
Speed
-M
40 MHz
-V
X2 mode
30 MHz
60 MHz equiv.
-V
standardmode
40 MHz
-L
X2 mode
20 MHz
40 MHz equiv.
-L
standard mode
30 MHz
Units
Symbol
Min
Max
Min
Max
Min
Max
Min
Max
Min
Max
T
XLXL
300
200
300
300
400
ns
T
QVHX
200
117
200
200
283
ns
T
XHQX
30
13
30
30
47
ns
T
XHDX
0
0
0
0
0
ns
T
XHDV
117
34
117
117
200
ns
ALE
PSEN
RD
PORT 0
PORT 2
A0-A7
DATA IN
ADDRESS
OR SFR-P2
T
AVWL
T
LLWL
T
RLAZ
ADDRESS A8-A15 OR SFR P2
T
RHDZ
T
WHLH
T
RLRH
T
LLDV
T
RHDX
T
AVDV
T
LLAX
T
RLDV
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