HY27US08121B HYNIX [Hynix Semiconductor], HY27US08121B Datasheet - Page 10

• Manufacturer Part Number: HY27US08121B
• Description: 512Mbit (64Mx8bit / 32Mx16bit) NAND Flash
• Manufacturer: HYNIX [Hynix Semiconductor]

AC CHARACTERISTICS
Note :
1.
2.
3.
4.
Rev. 0.2/Dec. 02
Input Setup Time (fast slew rate)
Input Hold Time (fast slew rate)
Input Setup Time (slow slew rate)
Input Hold Time (slow slew rate)
Input Pulse Width
Write DQS High Level Width
Write DQS Low Level Width
Clock to First Rising edge of
DQS-In
Data-In Setup Time to DQS-In
(DQ & DM)
Data-in Hold Time to DQS-In (DQ
& DM)
DQ & DM Input Pulse Width
Read DQS Preamble Time
Read DQS Postamble Time
Write DQS Preamble Setup Time
Write DQS Preamble Hold Time
Write DQS Postamble Time
Mode Register Set Delay
Exit Self Refresh to Any Execute
Command
Average Periodic Refresh Interval
This calculation accounts for tDQSQ(max), the pulse width distortion of on-chip circuit and jitter.
Data sampled at the rising edges of the clock : A0~A12, BA0~BA1, CKE, /CS, /RAS, /CAS, /WE.
For command/address input slew rate >=1.0V/ns
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
Parameter
V/ns
0.5
0.4
0.3
Symbol
t
t
WPRES
WPREH
t
t
t
t
t
t
t
DQSH
WPST
t
t
DQSL
DQSS
RPRE
DIPW
RPST
t
t
MRD
REFI
t
t
XSC
IPW
t
t
t
t
DS
DH
(AC operating conditions unless otherwise noted)
IS
IH
IS
IH
DDR266(2-2-2)
0.35
0.35
0.72
1.75
0.25
Min
200
0.9
0.9
1.0
1.0
2.2
0.5
0.5
0.9
0.4
0.4
0
2
Delta tIS
-
+100
+50
ps
0
Max
1.28
15.6
1.1
0.6
0.6
-
-
-
-
-
-
-
-
-
-
-
-
-
0.35
0.35
0.75
1.75
0.25
Min
200
0.9
0.9
1.0
1.0
2.2
0.5
0.5
0.9
0.4
0.4
DDR266A
0
2
-
Delta tIH
Max
1.25
15.6
1.1
0.6
0.6
ps
0
0
0
HYMD232646B(L)8-M/K/H/L
-
-
-
-
-
-
-
-
-
-
-
-
-
0.35
0.35
0.75
1.75
0.25
Min
200
0.9
0.9
1.0
1.0
2.2
0.5
0.5
0.9
0.4
0.4
DDR266B
0
2
-
Max
1.25
15.6
1.1
0.6
0.6
-
-
-
-
-
-
-
-
-
-
-
-
-
0.35
0.35
0.75
0.25
Min
200
1.1
1.1
1.1
1.1
2.5
0.6
0.6
0.9
0.4
0.4
2
0
2
-
DDR200
Max
1.25
15.6
1.1
0.6
0.6
-
-
-
-
-
-
-
-
-
-
-
-
-
- continued -
Unit
CK
CK
CK
CK
CK
CK
CK
CK
CK
CK
ns
ns
ns
ns
ns
ns
ns
ns
us
2,3,5,6
2,3,5,6
2,4,5,6
2,4,5,6
11~13
11~13
Note
6,7,
6,7,
8
6
10