MTC-20276 Integrated NT (INTQ) for Basic Rate ISDN (2B1Q) MTC-20277 Integrated NT (INTT) for Basic Rate ISDN (4B3T) Product Brief Key Features: General Description ISDN basic rate NT functions in a single chip U and S/T interfaces in one device Minimal external components 3.3V operating voltage 300mW power consumption Pin compatible 2B1Q and 4B3T line code versions * MTC-20276 INTQ for 2B1Q * MTC-20277 INTT for 4B3T Stand-alone mode for standard NT1 applications GCI bus interface for advanced functions Flashing LED status indicator (2BIQ Version) -40C to + 85C or 0C to 70C (option) 44 pin Plastic Quad Flat Pack package The MTC-20276/7 chip contains all the functions necessary to make an ISDN Network Termination module. It comprises a fully integrated 'U'-interface, an 'S'-interface, plus the necessary support functions. The general block diagram is shown in Figure 1. Two versions of the device are available - the MTC-20276 offering the 2B1Q line code on the `U' interface, and the MTC-20277 which has 4B3T line coding. The two devices are pin compatible, and are fully compliant with the relevant parts of ETSI, FTZ and ITU requirements for ISDN connections. The devices are fabricated in Alcatel Microelectronics' advanced 0.5 CMOS mixed digital/ analog process and operate with a single 3.3V supply voltage. A GCI bus interface supports expanded features including data ports and A/B (POTS) analog ports. Power / Ground and Analog Test TX Applications The MTC-20276/7 devices offer a user transport rate of 144kbit/s full duplex (2B + D), as well as fully automatic control of activate/deactivate protocols and full support of the maintenance channel. `U' interface Analog Support Functions TX `S' interface (S-bus mode) Line powered ISDN NT Small ISDN PABX NT plus Data Network Gateways Pair gain NMDS CTI Systems Package 44 pin PQFP 44 pin PLCC 44 pin PQFP 44 pin PLCC 44 pin PQFP 44 pin PLCC 44 pin PQFP 44 pin PLCC Code PQ44 PC44 PQ44 PC44 PQ44 PC44 PQ44 PC44 SPI and Aux. test access Power-on Reset RX Digital Expansion and Test logic Dual GCI access and expansion port JTAG test access Crystal Oscillator Fig. 1: INT General block diagram Ordering Information Part number MTC-20276PQ-I MTC-20276PC-I MTC-20276PQ-C MTC-20276PC-C MTC-20277PQ-I MTC-20277PC-I MTC-20277PQ-C MTC-20277PC-C RX Temp. -40/+85C -40/+85C 0/+70C 0/+70C -40/+85C -40/+85C 0/+70C 0/+70C The INT uses the ARM7TDMI processor core from ARM Ltd, UK MTC-20276 INTQ MTC-20277 INTT NT and Extended NT Functions ("NTplus") The MTC-20276/7 has dual GCI interface, which operates in one of two modes. In Mode 0 (GMode = logic 0), the GCI port allows the data flow between the 'U' and the 'S' ports to be optionally monitored. This is the "stand alone" mode, which is the normal mode for simple NT1 applications. No additional microprocessor or other control device is required in this mode. Mode 1 (GMode = logic1) allows separate access to the 'U' and the 'S' ports, for use by an external GCI compatible controller device. In this mode, the chip supports additional features required by extended NT modules such as interfaces to existing analog equipment, or advanced data communication gateways. When using the MTC-20276 in a 2B1Q NT module, two test pins AUX1 and AUX2 are used to flag the status of the power supplies to the module: AUX1 (PW220) is used to indicate the presence of a mains or other local supply voltage (1 = local supply available), and AUX2 (PW40) is used to indicate the presence of a supply voltage from the 'U' interface line (40V nominal, 1 = line power available). To ensure pin compatibility between the 2B1Q and 4B3T versions, these pins are ignored in the MTC-20277 for 4B3T NT modules. The MTC-20276 INTQ also provides fully automatic handling of the Embedded Operations Channel. Figure 2 shows the circuit configuration of the MTC-20276/7 in its stand alone mode, for conventional NT1 applications. Figure 3 shows the system concept of an MTC-20276/7 in an "NT1+" application, in combination with the Alcatel Microelectronics MTK-40130 "SH-POTS" chipset for short-haul analog telephone lines and one of Alcatel Microelectronics' Controllers for ISDN Terminals (e.g. MTC-20270 or MTC20280). 2 MTC-20276 INTQ MTC-20277 INTT Fig. 2: INT - Single-chip NT1 external component configuration 3 MTC-20276 INTQ MTC-20277 INTT Fig. 3: Concept of an NT1+ Configuration for 2 Analog Lines Pin Description No* Function Name Dir. LOUT1 LOUT2 O O LIN1 LIN2 AREF I I O 43 42 AVDD AVSS P P 33 32 SXP SXN O O SRP SRN SBUS I I I SATP AVDD AVSS G1DOUT G1DIN O P P O I/O 44 1 U 3 4 2 31 30 37 34 36 35 12 13 Int. S Int. Description U interface analog outputs. The connections LOUT1 and LOUT2 interface the U driver outputs, via termination resistors and the line coupling transformer, to the UK0 reference point. U interface analog inputs to the INT from the analog `hybrid' Analog ground (1.65V 3%). Used as reference voltage for analog functions ADC and DAC VDD for analog U interface functions + 3.3V 5% VSS (0V ground) for U interface analog functions S interface analog outputs. SXP and SXN interface the S-driver outputs via terminating resistors and the TX line coupling transformer to the S0 reference point (Tx). S interface analog inputs. SRP and SRN interface the S inputs via a line coupling transformer to the S0 interface point (Rx). S-bus type configuration. 1 = short bus with fixed timing, 0 = adaptive timing for extended bus or point-to-point Analog test pin. Used for test purposes only, should be left open circuit VDD for analog S interface functions + 3.3V 5 % VSS (0V ground) for S interface analog functions Primary GCI interface G1: GMODE = 0 : Monitoring of the internal GCI between the U and S. 4 MTC-20276 INTQ MTC-20277 INTT 14 15 GCI G1DCLK G1DFR O O 18 19 20 21 Int. G2DOUT G2DIN G2DCLK G2FR O I O O GMODE I TRST TCK TMS TDI TDO I I I I O 41 NRESET I 25 24 XTAL1 XTAL2 I I 40 TSP I 39 AUX1/ PW220 AUX2/ I PW40 I SPICK SPICS SPIDI/OPTO SPIDO/LED O O I O AUX/CSO I VDD VDD VSS VSS P P P 22 5 6 7 8 9 JTAG INT. 38 10 11 27 28 SPI Int. 29 16 26 17 23 *QFP Pin Numbers GMODE = 1 : NTplus mode; complete GCI connected to U with U as master. G1DOUT = data output G1Din = data input (output direction in monitoring mode) G1DCLK = 512 KHz GCI clock G1DFR = 8KHz GCI frame clock which identifies the beginning of the frame of G1DIN and G1DOUT Secondary GCI interface G2: GMODE = 0 : No function GMODE = 1 : NTplus mode; complete GCI connected to S with external master. G2DOUT = data output G2DIN = data input G2DCLK = 512KHz GCI clock G2DFR = 8KHz GCI frame clock which identifies the beginning of the frame of G2DIN and G2DOUT Remark : if NT Plus mode not used, the inputs have to be strapped high or low. Select NTplus mode. 0 = monitoring mode, 1 = NTplus mode. TAP controller reset, active low TAP controller clock, maximum 10 MHz TAP controller mode selection TAP controller input TAP controller output Hardware reset, active low. Schmitt trigger input for connection to external RC or logic device. Reset pulse min. 10ms. (threshold 1.65V CMOS level) Connection to external crystal (15.36MHz 100ppm loading caps 2x22pF) Connection to external crystal. May also be used as input for external master clock source. Test Single Pulses. INT transmits alternate positive and negative pulses to act as test and search-tone on the line. Pulse repetition 1KHz at `U' interface. MTC-20277. Test input only (strap to ground) MTC-20276. Indicate presence of 220V AC supply. 1 = 220V is ON MTC-20277. Selection between S block mode 1 = normal (2080) 0 = advanced (2081) MTC-20276. Indicate presence of 40V power from line. 1 = 40V is ON MTC-20276. Enable/disable upstream activation request on power-up. MTC-20276. The pin LED can drive an LED (max4.0 mA) that indicates the device status. The 4 states are on, off, 1Hz flashing and 8 Hz flashing. The other pins can be left open. Indicate cold-start-only operation mode: MTC-20276 0 = normal 1 = cold-start-only flag set Must be strapped to ground for normal operation MTC-20277. Positive supply for digital functions + 3.3V 5 % 0V ground for digital functions 5 MTC-20276 INTQ MTC-20277 INTT Absolute Maximum Ratings Operation at these limits is not guaranteed, and device reliability will be adversely effected. Logic supply voltage (VDD, AVDD) 3.63 V Voltage on any pin (except GCI) VDD+0.3 V VSS-0.3 V Voltage on GCI interface pins 6 V Continuous power dissipation 1 W at 25 C ambient Storage temperature -55 to +150 C for < 100 hours -55 to +100 C for > 100 hours Operating Ranges VDD, AVDD 3.15 to 3.45 V (= 3.3V 5%) Supply noise (p-p): 100mV on VDD 10mV on AVDD 0.1mV on AREF AREF output voltage 1.65V 3% Max current on AREF + or - 0.25 mA Power consumption 320 mW TYP. in power-up state, at maximum Vdd nominal loads on S and U interfaces, random signals: U: 150 line equivalent S: 100 line equivalent 20mW in power-down state Crystal frequency 15.36 MHz 50ppm. Parallel mode NT cut crystal, loading capacitors 2 x 22 pF. External master clock may be applied to XTAL2. Temperature range -40 to +85 C (-I suffix) 0 to 70 C (-C suffix) Reliability Information Early failure rate 0.3% at 3000 hours Long term failure rate 300 FIT for 45C average ambient and 45% average humidity Lifetime 15 years Alcatel Microelectronics acknowledges the trademarks of all companies referred to in this document. This document contains information on a new product. Alcatel Microelectronics reserves the right to make changes in specifications at any time and without notice. The information furnished by Alcatel Microelectronics in this document is believed to be accurate and reliable. However, no responsibility is assumed by Alcatel Microelectronics for its use, nor for any infringements of patents or other rights of third parties resulting from its use. No licence is granted under any patents or patent rights of Alcatel Microelectronics. Alcatel Microelectronics info@mie.alcatel.be http://www.alcatel.com/telecom/micro Sales & Design Centres Benelux & Nordic Countries Excelsiorlaan 44-46 1930 Zaventem Belgium Central Europe Arabellastrae 4 81925 Munchen Germany Stuttgart Office Schwieberdingerstrae 9 70435 Stuttgart Germany Tel. +49 89 920 07 70 Fax +49 89 910 15 59 Tel. +49 711 821 453 04 Tel. +32 2 718 18 11 Fax +49 711 821 446 19 Fax +32 2 725 37 49 Italy Via Trento 30 20059 Vimercate MI Italy Southern Europe 10, rue Latecoere, B.P.57 78140 Velizy Cedex France USA M/S 412-115 1225 N. Alma Road Richardson TX 75081-2206 Tel. +39 039 686 4520 Fax +39 039 686 6899 Tel. +33 1 46 32 53 86 Fax +33 1 46 32 55 68 Tel. +1 972 996 2489 Fax +1 972 996 2503 Representatives Northern Germany TRIAS Moerser Landstrae 408 47802 Krefeld Germany UK Alpha Comp. Ltd. Springfield Hse,Cranes Rd. Sheborne St. John Basingstoke,HA RG24 9LJ UK Tel. +49 2151 95 30 111 Tel. +44 1256 851 770 Fax +49 2151 95 30 115 Fax +44 1256 851 771 Marketing & Design Centre Headquarters Manufacturing & Customer Service Taiwan ROC Alcatel ITS Ltd Suite D, 8th floor 133 Section 3, Min Seng E.Rd. Taipei 015, Taiwan Japan Alcatel ITS Japan Ltd Yubisu Gdn Plc Twr 24 20-3 Ebisu 4-chrome, Shibuyaku Tokyo, 150, Japan Excelsiorlaan 44-46 1930 Zaventem Belgium Westerring 15 9700 Oudenaarde Belgium Tel. +886 2 717 1255 Fax +886 2 717 1250 Tel. +81 3 5424 8561 Fax +81 3 5424 8581 Tel. +32 2 718 18 11 Fax +32 2 725 37 49 Tel. +32 55 33 24 70 Fax +32 55 33 27 68 10/98-PB219f Sales Offices