參數(shù)資料
型號: PSD813F5V-20MT
廠商: STMICROELECTRONICS
元件分類: 微控制器/微處理器
英文描述: 128K X 8 FLASH, 27 I/O, PIA-GENERAL PURPOSE, PQFP52
封裝: PLASTIC, QFP-52
文件頁數(shù): 87/103頁
文件大?。?/td> 1180K
代理商: PSD813F5V-20MT
PSD8XXF2/3/4/5
84/103
Table 54. READ Timing (5V devices)
Note: 1. RD timing has the same timing as DS, LDS, UDS, and PSEN signals.
2. RD and PSEN have the same timing.
3. Any input used to select an internal PSD8XXFX function.
4. In multiplexed mode, latched addresses generated from ADIO delay to address output on any Port.
5. RD timing has the same timing as DS, LDS, and UDS signals.
Symbol
Parameter
Conditions
-70
-90
-15
Turbo
Off
Unit
Min
Max
Min
Max
Min
Max
tLVLX
ALE or AS Pulse Width
15
20
28
ns
tAVLX
Address Setup Time
(Note 3)
4
6
10
ns
tLXAX
Address Hold Time
(Note 3)
78
11
ns
tAVQV
Address Valid to Data Valid
(Note 3)
70
90
150
+ 10
ns
tSLQV
CS Valid to Data Valid
75
100
150
ns
tRLQV
RD to Data Valid 8-Bit Bus
(Note 5)
24
32
40
ns
RD or PSEN to Data Valid
8-Bit Bus, 8031, 80251
(Note 2)
31
38
45
ns
tRHQX
RD Data Hold Time
(Note 1)
00
0
ns
tRLRH
RD Pulse Width
(Note 1)
27
32
38
ns
tRHQZ
RD to Data High-Z
(Note 1)
20
25
30
ns
tEHEL
E Pulse Width
27
32
38
ns
tTHEH
R/W Setup Time to Enable
6
10
18
ns
tELTL
R/W Hold Time After Enable
0
ns
tAVPV
Address Input Valid to
Address Output Delay
(Note 4)
20
25
30
ns
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