Contextual Info: M ITEL MT89L80 CMOS ST-BUS FAMILY Digital Switch Advance Information S E M IC O N D U C T O R Features DS5196 ISSUE 2 September 1999 Ordering Information • 3.3 volt supply ♦ 5V tolerant inputs and TTL com patible outputs. ♦ 256 x 256 channel non-blocking switch

D007B

Contextual Info: p • MT8870D/MT8870D-1 Integrated DTMF Receiver is o 2-c m o s MITEL' \ b5lH37D GQQ7bl5 öb l ■ M I T C Prelim inary In fo rm atio n Features • • • • • • • • C om plete D TM F Receiver Low Power Consum ption Internal Gain Setting A m p lifie r

Contextual Info: MITEL* b 5 4 T 3 7 0 D D G 7 2 cJb Q4b • M I T C M H 8 8 6 0 0 Global SLIC Preliminary Information ISSUE 4 9161-002-129-NA Features • • • • • • • • • • • • March 1992 Pin Connections Programmable line impedance matching Internal complex impedance networks

Contextual Info: •I MITEL' b5M*ì37D DQ07SflS T03 ■ MITC MT8941 Advanced T1 /CEPT Digital Trunk PLL C M O S S T -B U S “ F A M ILY 9161-002-Î32-NA Features • Provides T1 clock at 1.544 MHz locked to an 8 kHz reference clock frame pulse . • Provides CEPT clock at 2.048 MHz and ST-BUS

LEI-4

Contextual Info: b S l4c]37ü GG07313 TSS « M I T C M ITEL MH88620 OPS/DID SLIC Advance Information 9161-002-154-NA Features • • • • • • • • • • • Programmable gain, network balance and impedance Transformerless 2-4 wire conversion Constant current with constant voltage fallback