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AS4SD16M16DGCR/XT

更新时间：2025-07-12 23:48:08
品牌：MICROSS
描述：Synchronous DRAM, 16MX16, CMOS, PDSO54, ROHS COMPLIANT, TSOP2-54

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免费 PCB/SMT

AS4SD16M16DGCR/XT 概述

Synchronous DRAM, 16MX16, CMOS, PDSO54, ROHS COMPLIANT, TSOP2-54

AS4SD16M16DGCR/XT 数据手册

通过下载AS4SD16M16DGCR/XT数据手册来全面了解它。这个PDF文档包含了所有必要的细节，如产品概述、功能特性、引脚定义、引脚排列图等信息。

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-Formerly Austin Semiconductor, Inc.  
Copper Lead Frame  
54-Pin TSOPII  
SDRAM Products  
FEATURES  
BENEFITS  
• Clock frequency: up to 133 MHz  
• Enhanced Long-term reliability with copper  
lead frames  
• Configurations: 32Mx16, 16Mx16, 8Mx16 & 4Mx16  
• Superior thermal conductivity improvement:  
170 W/m*K vs. 14 W/m*K (a 12X difference)  
• Fully synchronous; all signals referenced to a  
positive clock edge  
• Internal pipelined operation; column address can be  
changed every clock cycle  
•
θ ja and jc characteristics provide up to 3X  
advantage of heat dissipation capability  
versus parts with alloy 42 lead frames  
• Internal banks for hiding row access/precharge  
• Power supply: +3.3V +/-0.3V  
• Heat dissipated from the die faster makes it  
run cooler, leading to longer life  
• LVTTL interface  
• Solder joint reliability vastly improved.  
- CTE of Copper (17 ppm/ oC), matches the  
CTE of Typical FR4 PWBs (15-17 ppm/ oC),  
whereas CTE of Alloy 42 (5 ppm/ oC),  
is a mismatch  
• Programmable burst length (1, 2, 4, 8, full page)  
• Programmable burst sequence: Sequential/Interleave  
• Auto Refresh (CBR)  
• Self Refresh Mode (/IT)  
64ms, 8,192 cycle refresh (/IT)  
<24ms, 8,192 cycle refresh (/XT)  
• RoHS Version (NiPdAu plating)  
- Most preferred for elimination of risk for  
whisker growth  
• Write recovery (tWR = “2 CLK”)  
• Random column address every clock cycle  
• Programmable CAS latency (2, 3 clocks)  
• Over broader Military and Industrial  
temperature ranges, the above benefits are  
even more important  
• Burst read/write and burst read/single write  
operations capability  
• Burst termination by burst stop and precharge command  
APPLICATIONS  
Examples Include:  
• Available in 54-pin TSOP-II, choice of lead frame:  
- Copper lead frame  
- Alloy 42 lead frame  
• Military, Aerospace, Avionics  
• Operating Temperature Range:  
Industrial: -40oC to +85oC  
• Cellular Base Stations  
• Gas / Oil Exploration  
• Engine Control  
Military:  
-55oC to +125oC  
• Pb/Sn finish or RoHS available  
• On-Board Flight Computers  
• Radar / Sonar  
• 100% product screened at temperature extremes & Vcc  
extremes  
www.micross.com  
PACKAGE DIAGRAMS  
MicrossꢀPackageꢀdesignator:ꢀDGC  
CuꢀLeadꢀframe  
MicrossꢀPackageꢀdesignator:ꢀDG  
Alloyꢀ42ꢀLeadꢀframe  
Symbol  
Min.  
Ͳ
Nom.  
Max.  
1.20  
0.20  
1.10  
0.45  
Symbol  
Min.  
Ͳ
Nom.  
Ͳ
Ͳ
Max.  
1.20  
0.15  
1.05  
0.45  
A
A1  
A2  
b
c
D
E1  
E
e
Ͳ
0.10  
1.00  
Ͳ
A
A1  
A2  
b
C
D
E1  
E
e
0.05  
0.90  
0.25  
0.08  
22.02  
10.03  
11.56  
0.05  
0.95  
0.30  
0.12  
22.02  
10.03  
11.56  
1.00  
Ͳ
0.18  
Ͳ
0.21  
22.22  
10.16  
11.76  
0.80ꢀBSC  
Ͳ
22.42  
10.29  
11.96  
22.22  
10.16  
11.76  
0.80ꢀBSC  
0.50  
22.42  
10.29  
11.96  
L
0.40  
0.75  
L
0.40  
0.60  
L1  
ZD  
T
0.25ꢀBSC  
0.71ꢀREF  
Ͳ
ZD  
T
0.71ꢀREF  
0ꢀdeg  
Ͳ
8ꢀdeg  
0ꢀdeg  
8ꢀdeg  
(Note 4: Alloy 42 LF)  
(Alloy 42 Lead frame)  
(Cu Lead frame)  
Packageꢀ  
Configuration PartꢀNumber Speed VCC  
TempꢀRange  
Package  
Designator  
Leadꢀframe  
Status  
ꢀͲ40oCꢀtoꢀ+85oCꢀꢀꢀꢀꢀ  
Ͳ55oCꢀtoꢀ+125oCꢀ  
ꢀͲ40oCꢀtoꢀ+85oCꢀꢀꢀꢀꢀ  
Ͳ55oCꢀtoꢀ+125oCꢀ  
ꢀͲ40oCꢀtoꢀ+85oCꢀꢀꢀꢀꢀ  
Ͳ55oCꢀtoꢀ+125oCꢀ  
ꢀͲ40oCꢀtoꢀ+85oCꢀꢀꢀꢀꢀ  
Ͳ55oCꢀtoꢀ+125oCꢀ  
32Mꢀxꢀ16  
16Mꢀxꢀ16  
8Mꢀxꢀ16  
4Mꢀxꢀ16  
AS4SD32M16 133ꢀMHz 3.3V  
AS4SD16M16 133ꢀMHz 3.3V  
AS4SD8M16 133ꢀMHz 3.3V  
AS4SD4M16 133ꢀMHz 3.3V  
54ꢀPINꢀTSOPII  
DGCꢀ&ꢀDGCRꢀ  
DGCꢀ&ꢀDGCRꢀ  
DGCꢀ&ꢀDGCRꢀ  
DGCꢀ&ꢀDGCRꢀ  
Cu  
Qual  
54ꢀPINꢀTSOPII  
54ꢀPINꢀTSOPII  
54ꢀPINꢀTSOPII  
Cu  
Cu  
Cu  
Production  
Production  
Production  
ꢀͲ40oCꢀtoꢀ+85oCꢀꢀꢀꢀꢀ  
Ͳ55oCꢀtoꢀ+125oCꢀ  
ꢀͲ40oCꢀtoꢀ+85oCꢀꢀꢀꢀꢀ  
Ͳ55oCꢀtoꢀ+125oCꢀ  
ꢀͲ40oCꢀtoꢀ+85oCꢀꢀꢀꢀꢀ  
Ͳ55oCꢀtoꢀ+125oCꢀ  
ꢀͲ40oCꢀtoꢀ+85oCꢀꢀꢀꢀꢀ  
Ͳ55oCꢀtoꢀ+125oCꢀ  
32Mꢀxꢀ16  
16Mꢀxꢀ16  
8Mꢀxꢀ16  
4Mꢀxꢀ16  
AS4SD32M16 133ꢀMHz 3.3V  
AS4SD16M16 133ꢀMHz 3.3V  
AS4SD8M16 133ꢀMHz 3.3V  
AS4SD4M16 133ꢀMHz 3.3V  
54ꢀPINꢀTSOPII  
54ꢀPINꢀTSOPII  
54ꢀPINꢀTSOPII  
54ꢀPINꢀTSOPII  
DG  
DG  
DG  
DG  
Alloyꢀ42  
Alloyꢀ42  
Alloyꢀ42  
Alloyꢀ42  
Production  
Production  
Production  
Production  
DGꢀ&ꢀDGCꢀhaveꢀPbꢀ/ꢀSnꢀfinish,ꢀDGCRꢀisꢀRoHSꢀcompliant  
Phone: 512.339.1188  
semiconductors@micross.com  
www.micross.com  
Rev. 1.7 5/10  

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