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W3EG72128S-BD4 데이터시트 PDF




White Electronic에서 제조한 전자 부품 W3EG72128S-BD4은 전자 산업 및 응용 분야에서
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부품번호 W3EG72128S-BD4 기능
기능 1GB - 2x64Mx72 DDR SDRAM UNBUFFERED ECC
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로고 White Electronic 로고


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W3EG72128S-BD4 데이터시트, 핀배열, 회로
White Electronic Designs
W3EG72128S-AD4
-BD4
PRELIMINARY*
1GB – 2x64Mx72 DDR SDRAM UNBUFFERED ECC w/PLL
FEATURES
Double-data-rate architecture
DDR200, DDR266 and DDR333
Bi-directional data strobes (DQS)
Differential clock inputs (CK & CK#)
Programmable Read Latency 2,2.5 (clock)
Programmable Burst Length (2,4,8)
Programmable Burst type (sequential & interleave)
Edge aligned data output, center aligned data input
Auto and self refresh
Serial presence detect
Dual Rank
Power supply: 2.5V ± 0.20V
JEDEC standard 200 pin SO-DIMM package
• Package height options:
www.DataSheet4U.com AD4: 35.5 mm (1.38") and
BD4: 31.75 mm (1.25")
DESCRIPTION
The W3EG72128S is a 2x64Mx72 Double Data Rate
SDRAM memory module based on 512Mb DDR SDRAM
components. This module consists of eighteen 64Mx8 bit
DDR SDRAMs in 66 pin TSOP packages mounted on a
200 pin FR4 substrate.
Synchronous design allows precise cycle control with the
use of system clock. Data I/O transactions are possible on
both edges and Burst Lengths allow the same device to be
useful for a variety of high bandwidth, high performance
memory system applications.
* This product is under development, is not qualified or characterized and is subject to
change without notice.
NOTE: Consult factory for availability of:
• RoHS compliant products
• Vendor source control options
• Industrial temperature option
Clock Speed
CL-tRCD-tRP
OPERATING FREQUENCIES
DDR333 @CL=2.5
166MHz
2.5-3-3
DDR266 @CL=2
133MHz
2-2-2
DDR266 @CL=2.5
133MHz
2.5-3-3
DDR200 @CL=2
100MHz
2-2-2
August 2005
Rev. 3
1 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com




W3EG72128S-BD4 pdf, 반도체, 판매, 대치품
White Electronic Designs
W3EG72128S-AD4
-BD4
PRELIMINARY
ABSOLUTE MAXIMUM RATINGS
Parameter
Voltage on any pin relative to VSS
Voltage on VCC supply relative to VSS
Storage Temperature
Power Dissipation
Short Circuit Current
Symbol
VIN, VOUT
VCC, VCCQ
TSTG
PD
IOS
Note:
Permanent device damage may occur if "ABSOLUTE MAXIMUM RATINGS" are exceeded.
Functional operation should be restricted to recommended operating condition.
Exposure to higher than recommended voltage for extended periods of time could affect device reliability.
Value
-0.5 to 3.6
-1.0 to 3.6
-55 to +150
9
50
Units
V
V
°C
W
mA
Parameter
Supply Voltage
Supply Voltage
Reference Voltage
Termination Voltage
Input High Voltage
Input Low Voltage
Output High Voltage
Output Low Voltage
DC CHARACTERISTICS
0°C TA 70°C, VCC = 2.5V ± 0.2V
Symbol
VCC
VCCQ
VREF
VTT
VIH
VIL
VOH
VOL
Min
2.3
2.3
VCCQ/2 - 50mV
VREF - 0.04
VREF + 0.15
-0.3
VTT + 0.76
Max
2.7
2.7
VCCQ/2 + 50mV
VREF + 0.04
VCCQ + 0.3
VREF - 0.15
VTT - 0.76
Unit
V
V
V
V
V
V
V
V
CAPACITANCE
TA = 25°C, f = 1MHz, VCC = 3.3V, VREF =1.4V ± 200mV
Parameter
Input Capacitance (A0-A12)
Input Capacitance (RAS#, CAS#, WE#)
Input Capacitance (CKE0)
Input Capacitance (CK0,CK0#)
Input Capacitance (CS0#)
Input Capacitance (DQM0-DQM8)
Input Capacitance (BA0-BA1)
Data input/output capacitance (DQ0-DQ63)(DQS)
Symbol
CIN1
CIN2
CIN3
CIN4
CIN5
CIN6
CIN7
COUT
Max
56
56
29
5.5
29
13
56
13
Unit
pF
pF
pF
pF
pF
pF
pF
pF
August 2005
Rev. 3
4 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com

4페이지










W3EG72128S-BD4 전자부품, 판매, 대치품
White Electronic Designs
W3EG72128S-AD4
-BD4
PRELIMINARY
DDR SDRAM COMPONENT ELECTRICAL CHARACTERISTICS AND RECOMMENDED
AC OPERATING CONDITIONS
AC CHARACTERISTICS
335 262 265/202
PARAMETER
Access window of DQs from CK/CK#
CK high-level width
CK low-level width
Clock cycle time
CL = 2.5
CL = 2
DQ and DM input hold time relative to DQS
DQ and DM input setup time relative to DQS
DQ and DM input pulse width (for each input)
Access window of DQS from CK/CK#
DQS input high pulse width
DQS input low pulse width
DQS-DQ skew, DQS to last DQ valid, per group, per
access
Write command to first DQS latching transition
DQS falling edge to CK rising - setup time
DQS falling edge from CK rising - hold time
Half clock period
Data-out high-impedance window from CK/CK#
Data-out low-impedance window from CK/CK#
Address and control input hold time (fast slew rate)
Address and control input setup time (fast slew rate)
Address and control input hold time (slow slew rate)
SYMBOL
tAC
tCH
tCL
tCK (2.5)
tCK (2)
tDH
tDS
tDIPW
tDQSCK
tDQSH
tDQSL
tDQSQ
tDQSS
tDSS
tDSH
tHP
tHZ
tLZ
tIHF
tISF
tIHS
MIN MAX
-0.70 +0.70
0.45 0.55
0.45 0.55
6 13
7.5 13
0.45
0.45
1.75
-0.60 +0.60
0.35
0.35
0.4
0.75 1.25
0.20
0.20
tCH,tCL
+0.70
-0.70
0.75
0.75
0.8
MIN MAX MIN MAX UNITS NOTES
-0.75 +0.75 -0.75 0.75
ns
0.45 0.55 0.45 0.55
tCK
26
0.45 0.55 0.45 0.55
tCK
26
7.5 13 7.5 13 ns 39, 44
7.5 13 7.5/10 13 ns 39, 44
0.5 0.5 ns 23, 27
0.5 0.5 ns 23, 27
1.75 1.75
ns 27
-0.75 +0.75 -0.75 +0.75 ns
0.35 0.35
tCK
0.35 0.35
tCK
0.5 0.5 ns 22, 23
0.75 1.25 0.75 1.25 tCK
0.20 0.2
tCK
0.20 0.2
tCK
tCH,tCL
tCH, tCL
ns 30
+0.75
+0.75 ns 16, 36
-0.75 -0.75
ns 16, 36
0.90 0.90
ns 12
0.90 0.90
ns 12
1 1 ns 12
August 2005
Rev. 3
7 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com

7페이지


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W3EG72128S-BD4

1GB - 2x64Mx72 DDR SDRAM UNBUFFERED ECC

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