EDD2508AKTA-5B ELPIDA [Elpida Memory], EDD2508AKTA-5B Datasheet - Page 8

• Manufacturer Part Number: EDD2508AKTA-5B
• Description: 256M bits DDR SDRAM (32M words x 8 bits, DDR400)
• Manufacturer: ELPIDA [Elpida Memory]

Test Conditions
Parameter
Input reference voltage
Termination voltage
Input high voltage
Input low voltage
Input differential voltage, CK and /CK
inputs
Input differential cross point voltage,
CK and /CK inputs
Input signal slew rate
Preliminary Data Sheet E0349E60 (Ver. 6.0)
/CK
CK
Measurement point
VID
Symbol
VREF
VTT
VIH (AC)
VIL (AC)
VID (AC)
VIX (AC)
SLEW
Input Waveforms and Output Load
DQ
VIL
SLEW = (VIH (AC) – VIL (AC))/ t
tCL
t
tCK
8
VTT
VIX
VIH
RT = 50
CL = 30pF
tCH
Value
VDDQ/2
VREF
VREF
VREF
0.62
VREF
1
VDD
VREF
VSS
0.31
0.31
VDD
VSS
VREF
EDD2508AKTA-5
Unit
V
V
V
V
V
V
V/ns