Internet Data Sheet
HY[B/I]25DC512[80/16]0D[E/F](L)
512-Mbit Double-Data-Rate SDRAM
TABLE 20
Electrical Characteristics and DC Operating Conditions
Parameter
Symbol
Values
Unit Note/Test Condition 1)
Min.
Typ.
Max.
Device Supply Voltage
Device Supply Voltage
Output Supply Voltage
Output Supply Voltage
VDD
2.3
2.5
2.3
2.5
0
2.5
2.6
2.5
2.6
2.7
2.7
2.7
2.7
0
V
V
V
V
V
fCK ≤ 200 MHz
f
CK > 200 MHz 2)
fCK ≤ 200 MHz 3)
fCK > 200 MHz 2)3)
—
VDD
VDDQ
VDDQ
VSS, VSSQ
Supply Voltage,
I/O Supply Voltage
4)
5)
Input Reference Voltage
VREF
VTT
0.49 × VDDQ 0.5 × VDDQ 0.51 × VDDQ
V
V
I/O Termination Voltage
(System)
VREF – 0.04
VREF + 0.04
6)
6)
6)
Input High (Logic1) Voltage VIH.DC
Input Low (Logic0) Voltage VIL.DC
V
REF + 0.15
VDDQ + 0.3
VREF – 0.15
VDDQ + 0.3
V
V
V
–0.3
–0.3
Input Voltage Level,
CK and CK Inputs
VIN.DC
6)7)
8)
Input Differential Voltage,
CK and CK Inputs
VID.DC
0.36
0.71
–2
VDDQ + 0.6
V
VI-Matching Pull-up Current VIRatio
to Pull-down Current
1.4
2
—
μA
Input Leakage Current
II
Any input 0 V ≤ VIN ≤ VDD;
All other pins not under test
= 0 V 9)
Output Leakage Current
IOZ
IOH
IOL
–5
5
μA
DQs are disabled;
0 V ≤ VOUT ≤ VDDQ
9)
Output High Current,
Normal Strength Driver
—
–16.2
—
mA
mA
VOUT = 1.95 V
Output Low Current,
16.2
VOUT = 0.35 V
Normal Strength Driver
1) 0 °C ≤ TA ≤ 70 °C; VDD = VDDQ = 2.5 V ± 0.2 V, VDD = VDDQ = 2.6 V ± 0.1 V (DDR500)
2) DDR500 conditions apply for all clock frequencies above 200 MHz.
3) Under all conditions, VDDQ must be less than or equal to VDD
4) Peak to peak AC noise on VREF may not exceed ± 2% VREF.DC. VREF is also expected to track noise variations in VDDQ
5) VTT is not applied directly to the device. VTT is a system supply for signal termination resistors, is expected to be set equal to VREF, and
must track variations in the DC level of VREF
.
.
.
6) Inputs are not recognized as valid until VREF stabilizes.
7) VID is the magnitude of the difference between the input level on CK and the input level on CK.
8) The ratio of the pull-up current to the pull-down current is specified for the same temperature and voltage, over the entire temperature and
voltage range, for device drain to source voltage from 0.25 to 1.0 V. For a given output, it represents the maximum difference between
pull-up and pull-down drivers due to process variation.
9) Values are shown per pin.
Rev. 1.10, 2008-05
25
06212007-08MW-K87L