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MT8977AC PDF预览

MT8977AC

更新时间: 2024-01-24 03:04:18
品牌 Logo 应用领域
MITEL 电信集成电路
页数 文件大小 规格书
26页 347K
描述
ISO-CMOS ST-BUS⑩ FAMILY T1/ESF Framer Circuit

MT8977AC 技术参数

是否无铅: 含铅是否Rohs认证: 不符合
生命周期:Obsolete零件包装代码:LPCC
包装说明:QCCJ,针数:44
Reach Compliance Code:compliantHTS代码:8542.39.00.01
风险等级:5.25JESD-30 代码:S-PQCC-J44
JESD-609代码:e0长度:16.585 mm
湿度敏感等级:1功能数量:1
端子数量:44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:QCCJ封装形状:SQUARE
封装形式:CHIP CARRIER峰值回流温度(摄氏度):225
认证状态:Not Qualified座面最大高度:4.57 mm
标称供电电压:5 V表面贴装:YES
技术:CMOS电信集成电路类型:FRAMER
温度等级:INDUSTRIAL端子面层:TIN LEAD
端子形式:J BEND端子节距:1.27 mm
端子位置:QUAD处于峰值回流温度下的最长时间:30
宽度:16.585 mm

MT8977AC 数据手册

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MT8977 ISO-CMOS  
Preliminary Information  
1
2
3
4
5
6
7
TxA  
TxB  
DSTo  
NC  
RxA  
RxB  
RxD  
VDD  
IC  
F0i  
E1.5i  
C1.5i  
RxSF  
TxSF  
C2i  
RxFDL  
DSTi  
40  
44 43 42 41  
28  
27  
26  
25  
24  
23  
22  
21  
20  
19  
18  
17  
16  
15  
6 5 4 3 2  
1
C1.5i  
RxSF  
7
NC  
NC  
RxA  
39  
8
38  
37  
36  
35  
34  
33  
32  
31  
30  
29  
9
TxSF  
10  
11  
12  
13  
14  
15  
16  
NC  
RxB  
RxD  
NC  
NC  
C2i  
CSTi1  
NC  
8
9
CSTi1  
TxFDL  
TxFDLClk  
NC  
NC  
TxFDL  
NC  
NC  
10  
11  
12  
13  
14  
TxFDLClk  
NC  
NC  
RxFDLClk  
CSTo  
XSt  
RxFDL  
17  
18 19 20 21 22 23 24 25 26 27 28  
CSTi0  
E8Ko  
VSS  
XCtl  
28 PIN CERDIP/PDIP  
44 PIN PLCC  
Figure 2 - Pin Connections  
Pin Description  
Pin #  
Name  
Description  
DIP  
PLCC  
1
2
TxA  
Transmit A Output. Unipolar output that can be used in conjunction with TxB and  
external line driver circuitry to generate the bipolar DS1 signal.  
2
3
3
5
TxB  
Transmit B Output. Unipolar output that can be used in conjunction with TxA  
and external line driver circuitry to generate the bipolar DS1 signal.  
DSTo  
Data ST-BUS Output. A 2048 kbit/s serial output stream which contains the 24  
PCM or data channels received from the DS1 line.  
4
5
4
9
NC  
No Connection.  
RxA  
Receive A Complementary Input. Accepts a unipolar split phase signal decoded  
externally from the received DS1 bipolar signal. This input, in conjunction with  
RxB, detects bipolar violations in the received signal.  
6
7
10  
11  
RxB  
RxD  
Receive B Complementary Input. Accepts a unipolar split phase signal  
decoded externally from the received DS1 bipolar signal.  
This input, in  
conjunction with RxA, detects bipolar violations in the received signal.  
Receive Data Input. Unipolar RZ data signal decoded from the received DS1  
signal. Generally the signals input at RxA and RxB are combined externally with a  
NAND gate and the resulting composite signal is input at this pin.  
8
9
13  
14  
CSTi1  
TxFDL  
Control ST-BUS Input #1. A 2048 kbit/s serial control stream which carries 24  
per-channel control words.  
Transmit Facility Data Link (Input). A 4 kHz serial input stream that is  
multiplexed into the FDL position in the ESF mode, or the FS pattern when in SLC-  
96 mode. It is clocked in on the rising edge of TxFDLClk.  
10  
11  
16  
TxFDLClk Transmit Facility Data Link Clock (Output). A 4 kHz clock used to clock in the  
FDL data.  
NC  
No connection.  
4-100  

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