Datasheet

NOTE :
1. For input only pins except /RESET : V
REF = VREFCA (DC).
2. See Overshoot and Undershoot Specifications section.
3. The AC peak noise on V
REF 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(a) 1.35V : DC90, b) 1.5V : DC100)
6. VIL(dc) is used as a simplified symbol for VIL.CA(a) 1.35V : DC90, b) 1.5V : DC100)
7. VIH(ac) is used as a simplified symbol for VIH.CA(AC175) and VIH.CA(AC150); VIH.CA(AC175) value is used when
VREF + 175mV is referenced and VIH.CA(AC150) value is used when VREF + 150mV is referenced.
8. VIL(ac) is used as a simplified symbol for VIL.CA(AC175) and VIL.CA(AC150); VIL.CA(AC175) value is used when
VREF - 175mV is referenced and VIL.CA(AC150) value is used when VREF - 150mV is referenced.
V
ILCA (AC125)
AC input logic low
- -
V1,2
V
REFCA (DC)
Reference voltage for
ADD, CMD inputs
0.49 * VDD 0.51 * VDD V 3,4
Symb
ol Parameter Min. Max. Units Notes
Single-Ended AC and DC Input Levels for DQ and DM(1.35V)
Symbol Parameter Min. Max. Units Notes
VIHDQ (DC90) DC input logic high VREF + 0.090 VDD V 1,5(a)
VILDQ (DC90) DC input logic low VSS VREF - 0.090 V 1,6(a)
VIHDQ (AC160) V1,2
AC input logic high
- -
V
ILDQ (AC160)
AC input logic low
- V
REF - 0.160
V1,2
V
IHDQ (AC135) AC input logic high VREF + 0.135 - V 1,2
VILDQ (AC135) AC input logic low - VREF - 0.135 V 1,2
VIHDQ (AC130)
AC input logic high
- -
V1,2
V
ILDQ (AC130)
AC input
logic low
- -
V1,2
V
REFDQ (DC) Reference voltage for
DQ, DM inputs
0.49 * VDD 0.51 * VDD V 3,4
AS4C256M16D3LB-12BIN
AS4C256M16D3LB-12BCN
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Rev.1.1 Jan. 2017