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IDT77V1254L25L25PGI PDF预览

IDT77V1254L25L25PGI

更新时间: 2024-02-20 15:21:53
品牌 Logo 应用领域
艾迪悌 - IDT ATM集成电路SONET集成电路SDH集成电路电信电路异步传输模式
页数 文件大小 规格书
47页 808K
描述
Quad Port PHY (Physical Layer) for 25.6 and 51.2 ATM Networks

IDT77V1254L25L25PGI 技术参数

是否Rohs认证: 不符合生命周期:Obsolete
Reach Compliance Code:unknown风险等级:5.92
Is Samacsys:NJESD-30 代码:S-PQFP-G144
JESD-609代码:e0端子数量:144
最高工作温度:85 °C最低工作温度:-40 °C
封装主体材料:PLASTIC/EPOXY封装代码:QFP
封装等效代码:QFP144,1.2SQ封装形状:SQUARE
封装形式:FLATPACK电源:3.3 V
认证状态:Not Qualified子类别:ATM/SONET/SDH ICs
标称供电电压:3.3 V表面贴装:YES
技术:CMOS温度等级:INDUSTRIAL
端子面层:Tin/Lead (Sn/Pb)端子形式:GULL WING
端子节距:0.635 mm端子位置:QUAD
Base Number Matches:1

IDT77V1254L25L25PGI 数据手册

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IDT77V1254L25  
Quad Port PHY (Physical Layer)  
for 25.6 and 51.2  
ATM Networks  
Features List  
Description  
‹
Performs the PHY-Transmission Convergence (TC) and  
The IDT77V1254L25 is a member of IDT's family of products  
supporting Asynchronous Transfer Mode (ATM) data communications  
and networking. The IDT77V1254L25 implements the physical layer for  
25.6 Mbps ATM, connecting four serial copper links (UTP Category 3  
and 5) to one ATM layer device such as a SAR or a switch ASIC. The  
IDT77V1254L25 also operates at 51.2 Mbps, and is well suited to back-  
plane driving applications.  
Physical Media Dependent (PMD) Sublayer functions for  
four 25.6 Mbps ATM channels  
‹
Compliant to ATM Forum (af-phy-040.000) and ITU-T I.432.5  
specifications for 25.6 Mbps physical interface  
‹
‹
‹
‹
‹
‹
‹
‹
‹
‹
Also operates at 51.2 Mbps data rate  
UTOPIA Level 1, UTOPIA Level 2, or DPI-4 Interface  
3-Cell Transmit & Receive FIFOs  
The 77V1254L25-to-ATM layer interface is selectable as one of three  
options: 16-bit UTOPIA Level 2, 8-bit UTOPIA Level 1 Multi-PHY, or  
quadruple 4-bit DPI (Data Path Interface).  
The IDT77V1254L25 is fabricated using IDT's state-of-the-art CMOS  
technology, providing the highest levels of integration, performance and  
reliability, with the low-power consumption characteristics of CMOS.  
LED Interface for status signalling  
Supports UTP Category 3 and 5 physical media  
Interfaces to standard magnetics  
Low-Power CMOS  
3.3V supply with 5V tolerant inputs  
144-pin PQFP Package (28 x 28 mm)  
Commercial and Industrial Temperature Ranges  
Block Diagram  
TXREF  
T X C LK  
T X D A T A [15:0]  
T X P A R IT Y  
+
-
T X  
0
0
D river  
5B /4B  
E ncoding/  
D ecoding  
T X /R X A T M  
C ellF IF O  
S cram bler/  
D escram bler  
P /S and S /P  
N R Z I  
T X S O  
C
+
-
TXEN  
T X C LA V  
C lock R ecovery  
R X  
T X A D D R [4 :0 ]  
P H Y -A T M  
Interface  
M
O D E [1:0]  
(U T O P IA or D P I)  
+
-
R X A D D R [4:0]  
R X C LK  
T x  
1
D river  
5B /4B  
E ncoding/  
D ecoding  
T X /R X A T M  
C ellF IF O  
S cram bler/  
D escram bler  
P /S and S /P  
N R Z I  
R X D A T A [15:0]  
R X P A R IT Y  
+
-
C lock R ecovery  
R x  
1
R X S O  
C
RXEN  
R X C LA V  
+
-
INT  
RST  
T X  
2
2
D river  
5B /4B  
E ncoding/  
D ecoding  
T X /R X A T M  
C ellF IF O  
S cram bler/  
D escram bler  
P /S and S /P  
N R Z I  
+
-
C lock R ecovery  
R X  
M
icroprocessor  
Interface  
RD  
WR  
CS  
A D [7:0]  
+
-
A LE  
T X  
3
3
D river  
5B /4B  
E ncoding/  
D ecoding  
T X /R X A T M  
C ellF IF O  
S cram bler/  
D escram bler  
P /S and S /P  
N R Z I  
+
-
C lock R ecovery  
R X  
O
S C  
4
4
RXREF  
35 0 5 drw 0 1  
R X LE D [3:0]  
T X LE D [3:0]  
.
IDT and the IDT logo are registered trademarks of Integrated Device Technology, Inc.  
1 of 47  
September 21, 2001  
DSC 6003  
2001 Integrated Device Technology, Inc.  

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