psd311-b-90ui STMicroelectronics, psd311-b-90ui Datasheet - Page 46

• Manufacturer Part Number: psd311-b-90ui
• Description: Low Cost Field Programmable Microcontroller Peripherals
• Manufacturer: STMicroelectronics

18.8 Timing Parameters – ZPSD3XXV (3 V devices only)
NOTES: 1. ADi = any address line.
Symbol
T36
T23
T23A
T24
T25
T26
T27
T28
T29
T30
T31
T32
T33
T34
T35
*
2. CSOi = any of the chip-select output signals coming through Port B (CS0–CS7) or through Port C (CS8–CS10).
3. Direct PAD input = any of the following direct PAD input lines: CSI/A19 as transparent A19, RD/E/DS, WR or
4. Control signals RD/E/DS or WR or R/W.
-15 speed available only on ZPSD311V.
R/W, transparent PC0–PC2, ALE (or AS).
Track Mode Address
Propagation Delay:
CSADOUT1 Already True
Latched Address Outputs,
Port A
Track Mode Address
Propagation Delay:
CSADOUT1 Becomes True
During ALE or AS
Track Mode Trailing Edge of
ALE or AS to Address High-Z
Track Mode Read Propagation
Delay
Track Mode Read Hold Time
Track Mode Write Cycle,
Data Propagation Delay
Track Mode Write Cycle,
Write to Data Propagation Delay
Hold Time of Port A Valid
During Write CSOi
CSI Active to CSOi
CSI Inactive to CSOi
Direct PAD Input
R/W Active to E or DS Start
E or DS End to R/W
AS Inactive to E high
Address to Leading Edge
of Write
Parameter
3
as Hold Time
2
2
Trailing Edge
Active
2
Inactive
Min
10
30
30
30
8
2
9
9
0
0
-15*
Max
50
50
70
50
45
70
45
65
70
70
Min
10
40
40
35
8
3
9
9
0
0
-20
Max
60
60
80
60
55
70
55
75
80
80
(cont.)
Min
10
50
50
40
8
3
9
9
0
0
-25
Max
60
60
90
60
60
70
60
80
90
90
CMiser Turbo
On =
Add
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
PSD3XX Family
Off =
Add
20
20
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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