參數(shù)資料
型號(hào): HY5DU56822ELFP-J
廠商: Hynix Semiconductor Inc.
英文描述: 256Mb DDR SDRAM
中文描述: 256Mb的DDR SDRAM內(nèi)存
文件頁(yè)數(shù): 21/29頁(yè)
文件大?。?/td> 260K
代理商: HY5DU56822ELFP-J
Rev. 1.1 / J une 2006
21
1
HY5DU56822E(L)FP
HY5DU561622E(L)FP
AC OPERATING CONDITIONS
(TA=0 to 70
o
C, Voltage referenced to V
SS
= 0V)
Note:
1. VID is the magnitude of the difference between the input level on CK and the input on /CK.
2. The value of VIX is expected to equal 0.5*V DDQ of the transmitting device and must track variations in the DC level of the same.
*For more information about AC Overshoot/Undershoot Specifications, refer to “Device Operation” section in hynix website.
AC OPERATING TEST CONDITIONS
(TA=0 to 70
o
C, Voltage referenced to VSS = 0V)
Parameter
Symbol
Min
Max
Unit
Input High (Logic 1) Voltage, DQ, DQS and DM signals
V
IH(AC)
V
REF
+ 0.31
-
V
Input Low (Logic 0) Voltage, DQ, DQS and DM signals
V
IL(AC)
-
V
REF
- 0.31
V
Input Differential Voltage, CK and /CK inputs
1
V
ID(AC)
0.7
V
DDQ
+ 0.6
V
Input Crossing Point Voltage, CK and /CK inputs
2
V
IX(AC)
0.5*V
DDQ
-0.2
0.5*V
DDQ
+0.2
V
Parameter
Value
Unit
Reference Voltage
V
DDQ
x 0.5
V
Termination Voltage
V
DDQ
x 0.5
V
AC Input High Level Voltage (V
IH
, min)
V
REF
+ 0.31
V
AC Input Low Level Voltage (V
IL
, max)
V
REF
- 0.31
V
Input Timing Measurement Reference Level Voltage
V
REF
V
Output Timing Measurement Reference Level Voltage
V
TT
V
Input Signal maximum peak swing
1.5
V
Input minimum Signal Slew Rate
1
V/ns
Termination Resistor (R
T
)
50
Ω
Series Resistor (R
S
)
25
W
Output Load Capacitance for Access Time Measurement (C
L
)
30
pF
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