psd813f1a STMicroelectronics, psd813f1a Datasheet - Page 90

• Manufacturer Part Number: psd813f1a
• Description: Flash In-system Programmable Isp Peripherals For 8-bit Mcus, 5 V
• Manufacturer: STMicroelectronics

PSD813F1A
Table 56. READ Timing (3V devices)
Note: 1. RD timing has the same timing as DS, LDS, UDS, and PSEN signals.
90/111
t
t
t
t
t
t
t
t
t
t
t
t
t
Symbol
LVLX
AVLX
LXAX
AVQV
SLQV
RLQV
RHQX
RLRH
RHQZ
EHEL
THEH
ELTL
AVPV
2. RD and PSEN have the same timing for 8031.
3. Any input used to select an internal PSD function.
4. In multiplexed mode latched address generated from ADIO delay to address output on any Port.
5. RD timing has the same timing as DS, LDS, and UDS signals.
6. In Turbo Off mode, add 20ns to t
ALE or AS Pulse Width
Address Setup Time
Address Hold Time
Address Valid to Data Valid
CS Valid to Data Valid
RD to Data Valid 8-Bit Bus
RD or PSEN to Data Valid 8-Bit Bus,
8031, 80251
RD Data Hold Time
RD Pulse Width (also DS, LDS, UDS)
RD or PSEN Pulse Width (8031, 80251)
RD to Data High-Z
E Pulse Width
R/W Setup Time to Enable
R/W Hold Time After Enable
Address Input Valid to
Address Output Delay
Parameter
AVQV
.
(Note
Conditions
(Note
(Note
(Note
(Note
(Note
(Note
(Note
4
)
3,6
3
3
5
2
1
1
)
)
)
)
)
)
)
Min
26
10
12
40
55
45
18
0
0
-15
35
Max
150
150
35
50
40
Min
30
12
14
45
60
52
20
0
0
-20
40
Max
200
200
40
55
45
Turbo
+ 20
Off
ns
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns