Rainbow Electronics DS1643P - Manual (Page 7)

DS1643/DS1643P
7 of 14
READ CYCLE, AC CHARACTERISTICS (0
°
C to 70
°
C; V
CC
= 5.0V
± =10%)
70 ns access 100 ns access
PARAMETER SYMBOL MIN MAX MIN MAX UNITS NOTES
Read Cycle Time t
RC
70 100 ns 4
Address Access Time t
AA
70 100 ns 4
CE and CE2 to DQ Low-Z
t
CEL
5 5 ns 4
CE Access Time
t
CEA
70 100 ns 4
CE2 Access Time t
CE2A
80 105 ns 4
CE and CE2 Data Off Time
t
CEZ
25 35 ns 4
OE to DQ Low-Z
t
OEL
5 5 ns 4
OE Access Time
t
OEA
35 55 ns 4
OE Data Off Time
t
OEZ
25 35 ns 4
Output Hold from Address t
OH
5 5 ns 4
READ CYCLE TIMING DIAGRAM
WRITE CYCLE, AC CHARACTERISTICS (0
°
C to 70
°
C; V
CC
= 5.0V
± =10%)
70 ns access 100 ns access
PARAMETER SYMBOL MIN MAX MIN MAX UNITS NOTES
Write Cycle Time t
WC
70 100 ns 4
Address Setup Time t
AS
0 0 ns 4
WE Pulse Width
t
WEW
50 70 ns 4
CE Pulse Width
t
CEW
60 75 ns 4
CE2 Pulse Width t
CE2W
65 85 ns 4
Data Setup Time t
DS
30 40 ns 4
Data Hold Time t
DH
0 0 ns 4
Address Hold Time t
AH
5 5 ns 4
WE Data Off Time
t
WEZ
25 35 ns 4
Write Recovery Time t
WR
5 5 ns 4