Rev.

1.1

/

May.

2005

11

11

200pin Unbuffered DDR SDRAM SO-DIMMs

Note:

1. VID is the magnitude of the difference between the input level on CK and the input on /CK.

2. The value of VIX is expected to equal 0.5*V DDQ of the transmitting device and must track variations in the DC level of the same.

OUTPUT LOAD CIRCUIT

Parameter

Symbol

Min

Max

Unit

Note

Input High (Logic 1) Voltage, DQ, DQS and DM signals

-

V

Input Low (Logic 0) Voltage, DQ, DQS and DM signals

V

Input Differential Voltage, CK and /CK inputs

0.7

V

1

Input Crossing Point Voltage, CK and /CK inputs

V

2

Parameter

Value

Unit

Reference Voltage

V

Termination Voltage

V

V

V

Input Timing Measurement Reference Level Voltage

V

Output Timing Measurement Reference Level Voltage

V

Input Signal maximum peak swing

1.5

V

Input minimum Signal Slew Rate

1

V/ns

Ω

Ω

pF

Zo=50Ω

Output