Rainbow Electronics DS1220AB_AD - Manual (Page 5)

DS1220AB/AD
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AC ELECTRICAL CHARACTERISTICS (cont’d)
PARAMETER SYMBOL
DS1220AB–150
DS1220AD–150 DS1220AB–200
DS1220AD–200
UNITS NOTES PARAMETER SYMBOL
MIN MAX MIN MAX
UNITS NOTES
Read Cycle Time t
RC
150 200 ns
Access Time t
ACC
150 200 ns
OE to Output Valid t
OE
70 100 ns
CE to Output Valid t
CO
150 200 ns
OE or CE to Output Active t
COE
5 5 ns 5
Output High Z from Deselec-
tion t
OD
35 35 ns 5
Output Hold from Address
Change t
OH
5 5 ns
Write Cycle Time t
WC
150 200 ns
Write Pulse Width t
WP
100 150 ns 3
Address Setup Time t
AW
0 0 ns
Write Recovery
Time t
WR1
t
WR2
0
10
0
10
ns
ns 12
13
Output High Z from WE t
ODW
35 35 ns 5
Output Active from WE t
OEW
5 5 ns 4
Data Setup Time t
DS
60 50 ns 4
Data Hold Time t
DH1
t
DH2
0
10
0
10
ns
ns 12
13