HMT325S6CFR8A Datasheet, PDF(14/50 Page) Hynix Semiconductor – DDR3L SDRAM Unbuffered SODIMMs Based on 2Gb C-die

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HMT325S6CFR8A Datasheet, PDF (14/50 Pages) Hynix Semiconductor – DDR3L SDRAM Unbuffered SODIMMs Based on 2Gb C-die

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AC & DC Input Measurement Levels

AC and DC Logic Input Levels for Single-Ended Signals

AC and DC Input Levels for Single-Ended Command and Address Signals

Single Ended AC and DC Input Levels for Command and ADDress

Symbol

Parameter

DDR3L-800/1066/1333/1600

Min

Max

Unit Notes

VIH.CA(DC90) DC input logic high

Vref + 0.09

VDD

VIL.CA(DC90) DC input logic low

VSS

Vref - 0.09

VIH.CA(AC160) AC input logic high

VIL.CA(AC160) AC input logic low

Vref + 0.160

Note2

Vref - 0.160

1,2,5

VIH.CA(AC135) AC Input logic high

Vref + 0.135

Note2

1,2,5

VIL.CA(AC135) AC input logic low

Note2

Vref - 0.135

1,2,5

VIH.CA(AC125) AC Input logic high

1,2,5

VIL.CA(AC125) AC input logic low

1,2,5

VRefCA(DC)

Reference Voltage for

ADD, CMD inputs

0.49 * VDD

0.51 * VDD

3, 4

Notes:

1. For input only pins except RESET, Vref = VrefCA (DC).

2. Refer to "Overshoot and Undershoot Specifications" on page 27.

3. The ac peak noise on VRef may not allow VRef to deviate from VRefCA(DC) by more than +/-1% VDD (for

reference: approx. +/- 15 mV).

4. For reference: approx. VDD/2 +/- 15 mV.

5. VIH(dc) is used as a simplified symbol for VIH.CA(DC100)

6. VIL(dc) is used as a simplified symbol for VIL.CA(DC100)

7. VIH(ac) is used as simplified symbol for VIH.CA(AC175), VIH.CA(AC150), VIH.CA(AC135), and

VIH.CA(AC125); VIH.CA(AC175) value is used when Vref + 0.175V is referenced, VIH.CA(AC150) value is

used when Vref + 0.150V is referenced, VIH.CA(AC135) value is used when Vref + 0.135V is referenced,

and VIH.CA(AC125) value is used when Vref + 0.125V is referenced.

8. VIL(ac) is used as simplified symbol for VIL.CA(AC175), VIL.CA(AC150), VIL.CA(AC135), and

VIL.CA(AC125); VIL.CA(AC175) value is used when Vref - 0.175V is referenced, VIL.CA(AC150) value is

used when Vref - 0.150V is referenced, VIL.CA(AC135) value is used when Vref - 0.135V is referenced, and

VIL.CA(AC125) value is used when Vref - 0.125V is referenced.

Rev. 0.3 /Jun. 2012

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