MT8930C

Features:

• ETS 300-012, CCITT I.430 and ANSI T1.605 S/T interface
• Full-duplex 2B+D, 192 kbit/s transmission
• Link activation/deactivation
• D-channel access contention resolution
• Point-to-point, point-to-multipoint and star configurations
• 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
• Controllerless or microprocessor-controlled operation
• Mitel ST-BUS interface
• Low power CMOS technology
• Single 5 volt power supply


Application

• ISDN NT1
• ISDN S or T interface
• ISDN Terminal Adaptor (TA)
• Digital sets (TE1) - 4 wire ISDN interface
• Digital PABXs, Digital Line Cards (NT2)


Pinout

Specifications

	Parameter	Symbol	Min	Max	Units
1	Power supply voltage VDD-VSS	VDD	-0.3	7.0	V
2	Voltage on any pin	VI/O	-0.3	VDD+0.3	V
3	Current at any pin (Except VDD and VSS)	II/O		50	mA
4	Storage Temperature	TST	-65	150	°C
5	Package power dissipation	PD		1000	mW

Description

The MT8930C Subscriber Network Interface Circuit (SNIC) implements the ETSI ETS 300-012, CCITT I.430 and ANSI T1.605 Recommendations for the ISDN S and T reference points. Providing point-topoint and point-to-multipoint di-gital transmission, the SNIC may be used at either end of the subscriber line (NT or TE).

An HDLC D-channel protocoller of MT8930C is included and controlled through a Motorola/Intel microprocessor port. A contro-llerless mode allows the SNIC to operate without a microprocessor.

The MT8930C is fabricated in Mitel's CMOS process.