HYMD232G726B(L)8M-M/K/H/L

Rev. 0.2 / Dec. 2003

11

- continued -

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.

Parameter

Symbol

DDR266(2-2-2)

DDR266A

DDR266B

DDR200

Unit

Note

Min

Max

Min

Max

Min

Max

Min

Max

Input Setup Time (fast slew rate)

0.9

-

0.9

-

0.9

-

1.1

-

ns

2,3,5,6

Input Hold Time (fast slew rate)

0.9

-

0.9

-

0.9

-

1.1

-

ns

2,3,5,6

Input Setup Time (slow slew rate)

1.0

-

1.0

-

1.0

-

1.1

-

ns

2,4,5,6

Input Hold Time (slow slew rate)

1.0

-

1.0

-

1.0

-

1.1

-

ns

2,4,5,6

Input Pulse Width

2.2

2.2

2.2

2.5

ns

6

Write DQS High Level Width

0.35

-

0.35

-

0.35

-

0.35

-

CK

Write DQS Low Level Width

0.35

-

0.35

-

0.35

-

0.35

-

CK

Clock to First Rising edge of

DQS-In

0.72

1.28

0.75

1.25

0.75

1.25

0.75

1.25

CK

Data-In Setup Time to DQS-In

(DQ & DM)

0.5

-

0.5

-

0.5

-

0.6

-

ns

6,7,

11~13

Data-in Hold Time to DQS-In

(DQ & DM)

0.5

-

0.5

-

0.5

-

0.6

-

ns

6,7,

11~13

DQ & DM Input Pulse Width

1.75

-

1.75

-

1.75

-

2

-

ns

Read DQS Preamble Time

0.9

1.1

0.9

1.1

0.9

1.1

0.9

1.1

CK

Read DQS Postamble Time

0.4

0.6

0.4

0.6

0.4

0.6

0.4

0.6

CK

Write DQS Preamble Setup Time

0

-

0-

0-

0

-

CK

Write DQS Preamble Hold Time

0.25

-

0.25

-

0.25

-

0.25

-

CK

Write DQS Postamble Time

0.4

0.6

0.4

0.6

0.4

0.6

0.4

0.6

CK

Mode Register Set Delay

2

-

2-

2-

2

-

CK

Exit Self Refresh to Any Execute

Command

200

-

200

-

200

-

200

-

CK

8

Average Periodic Refresh Interval

-

15.6

-

15.6

-

15.6

-

15.6

us

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