psd311-b-90ui STMicroelectronics, psd311-b-90ui Datasheet - Page 44

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

18.7 Timing Parameters – PSD3XX/ZPSD3XX (All 5 V devices)
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.
*
-90 speed available only on Industrial Temperature versions.
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
18
18
18
6
2
8
5
8
0
0
-70
Max
22
22
33
30
27
29
18
30
37
37
Min
11
10
20
20
20
8
2
9
9
0
-90*
Max
22
22
33
32
29
29
20
30
40
40
Min
12
30
30
25
11
9
2
9
9
0
(cont.)
-15
Max
28
28
50
35
35
29
30
40
50
50
CMiser Turbo
On =
Add
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
PSD3XX Family
Off =
Add
10
10
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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