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UT54ACTS245E Datasheet(PDF) 1 Page - Aeroflex Circuit Technology |
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UT54ACTS245E Datasheet(HTML) 1 Page - Aeroflex Circuit Technology |
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1 / 9 page  1 UT54ACTS245E Octal Bus Transceiver with Three-State Outputs July 20013 www.aeroflex.com/Logic Datasheet FEATURES Three-state outputs drive bus line directly m CRH CMOS process - Latchup immune High speed Low power consumption Wide power supply operating range of 3.0V to 5.5V Available QML Q or V processes Flexible package - 20-lead flatpack UT54ACTS245E-SMD-5962-96573 DESCRIPTION The UT54ACTS245E is a non-inverting octal bus transceiver designed for asynchronous two-way communication between data buses. The control function implementation minimizes external timing requirements. The device allows data transmission from the A bus to the B bus or from the B bus to the A bus depending upon the logic level at the direction control (DIR) input. The enable input (G) disables the device so that the buses are effectively isolated. The device is characterized over full HiRel temperature range of -55 C to +125C. FUNCTION TABLE PINOUTS 20-Lead Flatpack Top View LOGIC SYMBOL ENABLE G DIRECTION CONTROL DIR OPERATION L L B Data To A Bus L H A Data To B Bus H X Isolation 1 2 3 4 5 7 6 20 19 18 17 16 14 15 DIR A1 A2 A3 A4 A5 A6 VDD G B1 B2 B3 B5 8 13 A7 B6 B4 9 12 A8 B7 10 11 VSS B8 (19) G G3 (2) A1 (3) A2 (4) (18) B1 (16) (17) B2 Note: 1. Logic symbol in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12. A3 (5) A4 (6) A5 (7) A6 B3 (13) B6 (14) B5 (15) B4 (8) A7 (9) A8 (11) B8 (12) B7 (1) DIR 3 EN1 (BA) 3 EN2 (AB) 1 2 |
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