HYMD232726B8J-J Datasheet, PDF (10/16 Pages) Hynix Semiconductor – Unbuffered DDR SDRAM DIMM

HYMD232726B(L)8-M/K/H/L
AC CHARACTERISTICS (AC operating conditions unless otherwise noted)
- continued -
Parameter
Symbol
DDR266(2-2-2)
Min Max
Input Setup Time (fast slew rate) tIS
0.9
-
Input Hold Time (fast slew rate)
tIH
0.9
-
Input Setup Time (slow slew rate) tIS
1.0
-
Input Hold Time (slow slew rate)
tIH
1.0
-
Input Pulse Width
tIPW
2.2
Write DQS High Level Width
tDQSH 0.35
-
Write DQS Low Level Width
tDQSL 0.35
-
Clock to First Rising edge of
DQS-In
tDQSS 0.72 1.28
Data-In Setup Time to DQS-In
(DQ & DM)
tDS
0.5
-
Data-in Hold Time to DQS-In (DQ
& DM)
tDH
0.5
-
DQ & DM Input Pulse Width
tDIPW 1.75
-
Read DQS Preamble Time
tRPRE
0.9
1.1
Read DQS Postamble Time
tRPST
0.4
0.6
Write DQS Preamble Setup Time tWPRES 0
-
Write DQS Preamble Hold Time tWPREH 0.25
-
Write DQS Postamble Time
tWPST
0.4
0.6
Mode Register Set Delay
tMRD
2
-
Exit Self Refresh to Any Execute
Command
tXSC
200
-
Average Periodic Refresh Interval tREFI
-
15.6
DDR266A
Min Max
0.9
-
0.9
-
1.0
-
1.0
-
2.2
0.35
-
0.35
-
0.75 1.25
0.5
-
0.5
-
1.75
-
0.9 1.1
0.4 0.6
0
-
0.25
-
0.4 0.6
2
-
200
-
-
15.6
DDR266B
Min Max
0.9
-
0.9
-
1.0
-
1.0
-
2.2
0.35
-
0.35
-
0.75 1.25
0.5
-
0.5
-
1.75
-
0.9 1.1
0.4 0.6
0
-
0.25
-
0.4 0.6
2
-
200
-
-
15.6
DDR200
Unit Note
Min Max
1.1
- ns 2,3,5,6
1.1
- ns 2,3,5,6
1.1
- ns 2,4,5,6
1.1
- ns 2,4,5,6
2.5
ns 6
0.35
- CK
0.35
- CK
0.75 1.25 CK
0.6
-
ns
6,7,
11~13
0.6
-
ns
6,7,
11~13
2
- ns
0.9 1.1 CK
0.4 0.6 CK
0
- CK
0.25
- CK
0.4 0.6 CK
2
- CK
200
- CK 8
-
15.6 us
Note :
1. This calculation accounts for tDQSQ(max), the pulse width distortion of on-chip circuit and jitter.
2. Data sampled at the rising edges of the clock : A0~A12, BA0~BA1, CKE, /CS, /RAS, /CAS, /WE.
3. For command/address input slew rate >=1.0V/ns
4. For command/address input slew rate >=0.5V/ns and <1.0V/ns
This derating table is used to increase tIS/tIH in case where the input slew-rate is below 0.5V/ns.
Input Setup / Hold Slew-rate Derating Table.
Input Setup / Hold Slew-rate
Delta tIS
Delta tIH
V/ns
ps
ps
0.5
0
0
0.4
+50
0
0.3
+100
0
Rev. 0.1/Oct. 02
10