V436616Y24VXTG-10PC 查看數據表（PDF） - Mosel Vitelic Corporation

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V436616Y24VXTG-10PC

3.3 VOLT 16M x 64 HIGH PERFORMANCE SDRAM UNBUFFERED SODIMM

Mosel Vitelic Corporation  

MOSEL VITELIC

V436616Y24V

AC Characteristics

TA = 0° to 70°C; VSS = 0V; VCC = 3.3V ± 0.3V, tT = 1 ns (Continued)

Limit Values

-75PC

-75

# Symbol Parameter

Min. Max. Min. Max.

14

tRP

Row Precharge Time

15

–

20

–

15

tRAS

Row Active Time

42

100K

45

100K

16

tRC

Row Cycle Time

60

–

60

–

17

tRRD

Activate(a) to Activate(b) Command Pe- 14

–

15

–

riod

18

tCCD

CAS(a) to CAS(b) Command Period

1

–

1

–

Refresh Cycle

19

tREF

20

tSREX

Read Cycle

Refresh Period (8192 cycles)

Self Refresh Exit Time

64

—

64

—

10

—

10

—

21

tOH

22

tLZ

23

tHZ

24

tDQZ

Write Cycle

Data Out Hold Time

Data Out to Low Impedance Time

Data Out to High Impedance Time

DQM Data Out Disable Latency

3

–

3

–

1

–

1

–

3

7.5

3

7.5

2

–

2

–

25

tWR

Write Recovery Time

26

tDQW

DQM Write Mask Latency

2

–

2

–

0

–

0

–

-10PC

Min. Max.

20

–

45

100K

70

–

20

–

1

–

64

—

10

—

3

–

1

–

3

10

2

–

2

–

0

–

Unit

ns

ns

ns

ns

CLK

ms

ns

ns

ns

ns

CLK

CLK

CLK

Note

6

6

6

6

2

7

Notes:

1.The specified values are valid when addresses are changed no more than once during tCK(min.) and when No

Operation commands are registered on every rising clock edge during tRC(min). Values are shown per module

bank.

2. The specified values are valid when data inputs (DQ’s) are stable during tRC(min.).

3. All AC characteristics are shown for device level.

An initial pause of 100 µs is required after power-up, then a Precharge All Banks command must be given followed

by 8 Auto Refresh (CBR) cycles before the Mode Register Set Operation can begin.

4. AC timing tests have VIL = 0.4V and VIH = 2.4V with the timing referenced to the 1.4V crossover point. The transition

time is measured between VIH and VIL. All AC measurements assume tT = 1 ns with the AC output load circuit

shown. Specific tac and toh parameters are measured with a 50 pF only, without any resistive termination and a

input signal of 1V / ns edge rate between 0.8V and 2.0V.

V436616Y24V Rev. 1.0 January 2002

8

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