MT8931BP [ZARLINK]
Digital SLIC, Basic, 1-Func, CMOS, PQCC44, PLASTIC, LCC-44;
| 型号： | MT8931BP |
| 厂家： | 
ZARLINK SEMICONDUCTOR INC |
| 描述： | Digital SLIC, Basic, 1-Func, CMOS, PQCC44, PLASTIC, LCC-44 综合业务数字网 |
| 文件： | 总3页 (文件大小：28K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
CMOS ST-BUS FAMILY MT8931B
Subscriber Network Interface Circuit
Preliminary Information
ISSUE 2
August 1993
Features
Ordering Information
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CCITT I.430 and ANSI T1.605 S/T interface
MT8931BC
MT8931BE
MT8931BP
28 Pin Ceramic DIP
28 Pin Plastic DIP
44 Pin PLCC
Full-duplex 2B+D, 192 kbit/s transmission
Link activation/deactivation
-40°C to +85°C
D-channel access contention resolution
Point-to-point, point-to-multipoint and star
configurations
Description
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Master (NT)/Slave (TE) modes of operation
Exceeds loop length requirements
Complete loopback testing capabilities
On chip HDLC D-channel protocoller
8 bit Motorola/Intel microprocessor interface
Microprocessor-controlled operation
Mitel ST-BUS interface
The MT8931B Subscriber Network Interface Circuit
(SNIC) implements the CCITT I.430 and ANSI
T1.605 Recommendations for the ISDN S and T
reference points. Providing point-to-point and point-
to-multipoint digital transmission, the SNIC may be
used at either end of the subscriber line (NT or TE).
An HDLC D-channel protocoller is included and
controlled through a Motorola/Intel microprocessor
port.
Low power CMOS technology
Single 5 volt power supply
The MT8931B is fabricated in Mitel’s CMOS process.
Applications
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ISDN NT1
ISDN S or T interface
ISDN Terminal Adaptor (TA)
Digital sets (TE1) - 4 wire ISDN interface
Digital PABXs, Digital Line Cards (NT2)
D-channel Priority
Mechanism
LTx
DSTi
ST-BUS
Interface
S-Bus
Link
Interface
DSTo
VBias
LRx
F0od
C4b
PLL
HDLC
Transceiver
Timing
and
Control
Link
Activation
Controller
F0b
STAR/Rsto
XTAL1/NT
VDD
VSS
XTAL2/NC
Microprocessor Interface
Rsti
HALF
AD0-7
R/W/WR
DS/RD
IRQ/NDA
AS/ALE
CS
Figure 1 - Functional Block Diagram
10-71
MT8931B
Preliminary Information
Notes:
10-72
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