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EDJ1108BDBG Datasheet(PDF) 7 Page - Elpida Memory |
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EDJ1108BDBG Datasheet(HTML) 7 Page - Elpida Memory |
7 / 147 page EDJ1108BDBG Data Sheet E1544E30 (Ver. 3.0) 7 Recommended DC Operating Conditions (TC = 0 °C to +85°C, VDD, VDDQ = 1.5V ± 0.075V) Parameter Symbol min. typ. max. Unit Notes Supply voltage VDD 1.425 1.5 1.575 V 1, 2 Supply voltage for DQ VDDQ 1.425 1.5 1.575 V 1, 2 Notes: 1. Under all conditions VDDQ must be less than or equal to VDD. 2. VDDQ tracks with VDD. AC parameters are measured with VDD and VDDQ tied together. AC and DC Input Measurement Levels (TC = 0 °C to +85°C, VDD, VDDQ = 1.5V ± 0.075V) Single-Ended AC and DC Input Levels for Command and Address Parameter Symbol min. typ. max. Unit Notes DC input logic high VIHCA (DC100) VREF + 0.100 VDD V 1 DC input logic low VILCA (DC100) VSS VREF − 0.100 V 1 AC input logic high VIHCA (AC175) VREF + 0.175 * 2 V 1, 2 AC input logic low VILCA (AC175) * 2 VREF − 0.175 V 1, 2 AC input logic high VIHCA (AC150) VREF + 0.150 * 2 V 1, 2 AC input logic low VILCA (AC150) * 2 VREF − 0.150 V 1, 2 Input reference voltage for address, command inputs VREFCA (DC) 0.49 × VDD 0.51 × VDD V 3, 4 Notes: 1. For input only pins except /RESET; VREF = VREFCA (DC). 2. See Overshoot and Undershoot Specifications section. 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. Single-Ended AC and DC Input Levels for DQ and DM Parameter Symbol min. typ. max. Unit Notes DC input logic high VIHDQ (DC100) VREF + 0.100 VDD V 1 DC input logic low VILDQ (DC100) VSS VREF − 0.100 V 1 VREF + 0.175 * 2 V 1, 2 AC input logic high DDR3-1066 DDR3-1333, 1600 VIHDQ (AC175) V 1, 2 AC input logic high VIHDQ (AC150) VREF + 0.150 * 2 1, 2 * 2 VREF − 0.175 V 1, 2 AC input logic low DDR3-1066 DDR3-1333, 1600 VILDQ (AC175) V 1, 2 AC input logic low VILDQ (AC150) * 2 VREF − 0.150 1, 2 Input reference voltage for DQ, DM inputs VREFDQ (DC) 0.49 × VDD 0.51 × VDD V 3, 4 Notes: 1. For DQ and DM: VREF = VREFDQ (DC). 2. See Overshoot and Undershoot Specifications section. 3. The AC peak noise on VREF may not allow VREF to deviate from VREFDQ (DC) by more than ±1% VDD (for reference: approx. ±15 mV). 4. For reference: approx. VDD/2 ± 15 mV. |
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