Transcend 256MB, DDR2, 667 SO-DIMM-200pin, 32Mx16, CL5 TS32MSQ64V6M 用户手册

 

 

Transcend Information Inc.

 

5

Voltage on V

DD

 relative to Vss 

VDD 

-1.0 ~ 2.3 

V 

1 

Voltage on V

DDQ

 pin relative to Vss 

VDDQ 

-0.5 ~ 2.3 

V 

1 

Voltage on V

DDL

 pin relative to Vss 

VDDL 

-0.5 ~ 2.3 

V 

1 

Voltage on any pin relative to Vss 

VIN, VOUT 

-0.5 ~ 2.3 

V 

1 

Storage temperature 

T

STG

 -55~+100 

°C 1,2 

1.Stress greater than those listed under “Absolute Maximum Ratings” may cause permanent damage to the 

stress rating only and functional operation of the device at these or any other conditions above those indicated 
in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions 
for extended periods may affect reliability. 

Note:  

2.Storage Temperature is the case surface temperature on the center/top side of the DRAM. For the   

measurement conditions, please refer to JESD51-2 standard. 

Supply voltage 

VDD 

1.7 

1.8 

1.9 

V

 

Supply voltage for DLL 

VDDL 

1.7 

1.8 

1.9 

V

4 

Supply voltage for Output 

VDDQ 

1.7 

1.8 

1.9 

V

4 

I/O Reference voltage 

VREF 

0.49*VDDQ

0.50*VDDQ 0.51*VDDQ  V

1,2 

I/O Termination voltage 

VTT 

V

REF

-0.04 V

REF

 

V

REF

+0.04 V

3 

DC Input logic high   

VIH

(DC)

 

V

REF

+0.125

- V

DDQ

+0.3 V

 

DC Input logic low   

VIL

(DC)

 -0.3 

- V

REF

-0.125 V

 

There is no specific device VDD supply voltage requirement for SSTL-1.8 compliance. However under all 
conditions VDDQ must be less than or equal to VDD. 
1.The value of VREF may be selected by the user to provide optimum noise margin in the system. Typically the 

value of VREF is expected to be about 0.5 x VDDQ of the transmitting device and VREF is expected to track 
variations in VDDQ. 

2.Peak to peak AC noise on VREF may not exceed +/-2% VREF (DC). 
3.VTT of transmitting device must track VREF of receiving device. 

Note: 

4.AC parameters are measured with VDD, VDDQ and VDDDL tied together. 

 

Operating Temperature 

TOPER 

0 to 85 

°C

1,2 

1.Operating Temperature is the case surface temperature on the center/top side of the DRAM. For the 

measurement conditions, please refer to JESD51.2 standard. 

2. At 0 - 85

°C, operation temperature range are the temperature which all DRAM specification will be supported.

Note: