CS22220 View Datasheet(PDF) - Cirrus Logic
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CS22220 Datasheet PDF : 34 Pages
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Table 11. Common Memory ‘Write’ Timing Specification
Speed Version
Item
Write Cycle time
Write Pulse Width
Address Setup Time
Address Setup Time for PC_NWE
Card Enable Setup Time for PC_NWE
Data Setup time for PC_NWE
Data Hold Time
Write Recovery Time
Output Disable Time from PC_NWE
Output Disable Time from PC_NOE
Output Enable Time from PC_NWE
Output Enable Time from PC_NOE
Output Enable Setup from PC_NWE
Output Enable Hold from PC_NWE
Card Enable Setup Time
Card Enable Hold Time
PC_NWAIT Valid from PC_NWE
PC_NWAIT Pulse Width
PC_NWE High from PC_NWAIT Released
Symbol
tcW
tw (WE)
tsu (A)
tsu (A-WEH)
tsu (CE-WEH)
tsu (D-WEH)
th (D)
trec (WE)
tdis (WE)
tdis (OE)
ten (WE)
ten (OE)
tsu (OE-WE)
th (OE-WE)
tsu (CE)
th (CE)
tv (WT-WE)
tw (WT)
100 ns
Min
Max
100
60
10
70
70
40
15
15
50
50
5
5
10
10
0
15
35
12 us
0
Table 12. Attribute Memory ‘Write’ Timing Specification
Speed Version
Item
Write Cycle time
Write Pulse Width
Address Setup Time
Address Setup Time for PC_NWE
Card Enable Setup Time for PC_NWE
Data Setup time for PC_NWE
Data Hold Time
Write Recovery Time
Output Disable Time from PC_NWE
Output Disable Time from PC_NOE
Output Enable Time from PC_NWE
Output Enable Time from PC_NOE
Output Enable Setup from PC_NWE
Output Enable Hold from PC_NWE
Card Enable Setup Time
Card Enable Hold Time
PC_NWAIT Valid from PC_NWE
PC_NWAIT Pulse Width
PC_NWE High from PC_NWAIT Released
Symbol
tcW
tw (WE)
tsu (A)
tsu (A-WEH)
tsu (CE-WEH)
tsu (D-WEH)
th (D)
trec (WE)
tdis (WE)
tdis (OE)
ten (WE)
ten (OE)
tsu (OE-WE)
th (OE-WE)
tsu (CE)
th (CE)
tv (WT-WE)
tw (WT)
600 ns
Min
Max
600
300
50
350
300
150
70
70
150
150
5
5
35
35
0
35
100
12 us
0
CS22220 Wireless PCMCIA Controller
29 of 34
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DS557PP2 Rev. 3.0
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