hm5216165 Elpida Memory, Inc., hm5216165 Datasheet - Page 40

• Manufacturer Part Number: hm5216165
• Description: 16 M Lvttl Interface Sdram 512-kword ? 16-bit ? 2-bank
• Manufacturer: Elpida Memory, Inc.

HM5216165 Series
Relationship Between Frequency and Minimum Latency (cont)
Parameter
Frequency (MHz)
t
Register set to active command
CS to command disable
Power down exit to command input
Burst stop to output valid data hold
Burst stop to output high impedance
Burst stop to write data ignore
Notes: 1. t
40
CK
(ns)
(CAS latency = 3)
(CAS latency = 2)
(CAS latency = 1)
(CAS latency = 3)
(CAS latency = 2)
(CAS latency = 1)
2. When self refresh exit is executed, CKE should be kept “H” longer than l
RCD
to t
RRD
are recommended value.
Data Sheet E0167H10
Symbol
t
I
I
I
I
I
I
I
I
I
RSA
CDD
PEC
BSR
BSR
BSR
BSH
BSH
BSH
BSW
HM5216165
-10H
100
10
1
0
1
2
—
—
3
—
—
0
66
15
1
0
1
2
1
—
3
2
—
0
33
30
1
0
1
2
1
0
3
2
1
0
-12
83
12
1
0
1
2
—
—
3
—
—
0
SREX
55
18
1
0
1
2
1
—
3
2
—
0
from exit cycle.
28
36
1
0
1
2
1
0
3
2
1
0
Notes