IS43R16800A-6T ISSI [Integrated Silicon Solution, Inc], IS43R16800A-6T Datasheet - Page 7

• Manufacturer Part Number: IS43R16800A-6T
• Description: 8Meg x 16 128-MBIT DDR SDRAM
• Manufacturer: ISSI [Integrated Silicon Solution, Inc]

IS43R16800A-6
AC ELECTRICAL CHARACTERISTICS (V
Notes:
1. Operating outside the “Absolute Maximum Ratings” may lead to temporary or permanent device failure.
2. Power up sequence describe in “Initialization” section.
3. All voltages are referenced to Vss.
Integrated Silicon Solution, Inc. — 1-800-379-4774
Rev. 00A
04/04/06
Symbol
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
RCDRD
RCDWR
MRD
CK
CH
CL
HP
AC
DQSCK
DQSQ
QH
QHS
HZ
LZ
RPRE
RPST
DQSS
DSS
DSH
WPRES
WPRE
WPST
DQSH
DQSL
IH
IPW
DS
DH
RC
RFC
RAS
RP
RAP
RRD
WR
DAL
REF
IS
Parameter
Clock Cycle Time
Clock High Level Width
Clock Low Level Width
Clock Half Period
Output Access Time from CK, CK
DQS-Out Access Time from CK, CK
DQS-DQ Skew
Output DQS Valid Window
Data Hold Skew factor
Data Out High Impedance time from CK, CK
Data Out Low Impedance time from CK, CK
Read Preamble
Read Postamble
CK to Valid DQS-In
DQS falling edge to CK setup time
DQS falling edge hold time from CK
Write Preamble Setup Time
Write Preamble
Write Postamble
DQS-In High Level Pulse Width
DQS-In Low Level Pulse Width
Address and Control Input Setup Time
Address and Control Input Hold Time
Address and Control Input Pulse Width
DQ and DM Setup Time to DQS
DQ and DM Hold Time to DQS
Active to Active/ Auto Refresh Command Period
Auto Refresh to Active/ Auto Refresh Command Period
Active to Precharge Command Period
RAS to CAS Delay in Read
RAS to CAS Delay in Write
Row Pre-charge Time
Active to Auto Precharge delay
Row Active to Row Active Delay
Write Recovery Time
Mode Register Load Delay
Auto Pre-charge Write Recovery + Pre-charge
Refresh Interval Time
DD
= 2.5V +/- 0.2V, T
Test Condition
CL = 2
CL = 2.5
A
= 0
o
C to +70
t
WR
t
t
t
HP
RCD
CH
/t
CK
Min.
0.45
0.45
0.75
0.25
0.35
0.35
0.75
0.75
0.45
0.45
-0.7
-0.6
-0.7
-0.7
7.5
0.9
0.4
0.2
0.2
0.4
2.2
—
—
60
72
42
18
18
18
12
15
—
- t
o
or t
6
0
2
+ t
C)
-6 (2.5-3-3)
min.
QHS
RP
CL
/t
CK
120K
Max.
0.55
0.55
0.45
0.55
1.25
15.6
0.7
0.6
0.7
0.7
1.1
0.6
0.6
12
12
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
ISSI
Unit
t
t
t
t
t
t
t
t
t
t
t
t
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
µs
CK
CK
CK
CK
CK
CK
CK
CK
CK
CK
CK
CK
®
7