參數(shù)資料
型號(hào): W942504CH-7
廠商: WINBOND ELECTRONICS CORP
元件分類: DRAM
英文描述: 64M X 4 DDR DRAM, 0.75 ns, PDSO66
封裝: 0.400 X 0.875 INCH, 0.65 MM PITCH, TSOP2-66
文件頁數(shù): 43/45頁
文件大小: 1261K
代理商: W942504CH-7
W942504CH
Publication Release Date: February 14, 2003
- 7 -
Revision A1
7. ELECTRICAL CHARACTERISTICS
Absolute Maximum Ratings
PARAMETER
SYMBOL
RATING
UNIT
Input, Output Voltage
VIN, VOUT
-0.3
VDDQ +0.3
V
Power Supply Voltage
VDD, VDDQ
-0.3
3.6
V
Operating Temperature
TOPR
0
70
°C
Storage Temperature
TSTG
-55
150
°C
Soldering Temperature (10s)
TSOLDER
260
°C
Power Dissipation
PD
1
W
Short Circuit Output Current
IOUT
50
mA
Note: Exposure to conditions beyond those listed under Absolute Maximum Ratings may adversely affect the life and reliability
of the device.
Recommended DC Operating Conditions
(TA = 0 to 70°C)
SYMBOL
PARAMETER
MIN.
TYP.
MAX.
UNIT
NOTES
VDD
Power Supply Voltage
2.3
2.5
2.7
V
2
VDDQ
Power Supply Voltage (for I/O
Buffer)
2.3
2.5
VDD
V
2
VREF
Input reference Voltage
0.49 x
VDDQ
0.50 x
VDDQ
0.51 x
VDD Q
V
2, 3
VTT
Termination Voltage (System)
VREF -0.04
VREF
VREF +0.04
V
2, 8
VIH (DC)
Input High Voltage (DC)
VREF +0.15
-
VDDQ +0.3
V
2
VIL (DC)
Input Low Voltage (DC)
-0.3
-
VREF -0.15
V
2
VICK (DC)
Differential Clock DC Input Voltage
-0.3
-
VDDQ +0.3
V
15
VID (DC)
Input Differential Voltage. CLK and
CLK
inputs (DC)
0.36
-
VDDQ +0.6
V
13, 15
VIH (AC)
Input High Voltage (AC)
VREF +0.31
-
V
2
VIL (AC)
Input Low Voltage (AC)
-
VREF -0.31
V
2
VID (AC)
Input Differential Voltage. CLK and
CLK
inputs (AC)
0.7
-
VDDQ +0.6
V
13, 15
VX (AC)
Differential AC input Cross Point
Voltage
VDDQ/2 -0.2
-
VDDQ/2 +0.2
V
12, 15
VISO (AC)
Differential Clock AC Middle Point
VDDQ/2 -0.2
-
VDDQ/2 +0.2
V
14, 15
Note: Undershoot Limit : VIL (min.) = -0.9V with a pulse width < 5 nS
Overshoot Limit : VIH (max.) = VDDQ +0.9V with a pulse width < 5 nS
VIH (DC) and VIL (DC) are levels to maintain the current logic state.
VIH (AC) and VIL (AC) are levels to change to the new logic state.
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