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UT54ACTS245

ETC
Part Number UT54ACTS245
Manufacturer ETC
Description Ocral Bus Transceiver
Published Nov 18, 2008
Detailed Description UT54ACS245/UT54ACTS245 Radiation-Hardened Octal Bus Transceiver with Three-State Outputs FEATURES Three-state outputs d...
Datasheet PDF File UT54ACTS245 PDF File

UT54ACTS245
UT54ACTS245

Overview
UT54ACS245/UT54ACTS245 Radiation-Hardened Octal Bus Transceiver with Three-State Outputs FEATURES Three-state outputs drive bus line directly radiation-hardened CMOS - Latchup immune High speed www.
DataSheet4U.
com Low power consumption Single 5 volt supply Available QML Q or V processes Flexible package - 20-pin DIP - 20-lead flatpack DESCRIPTION The UT54ACS245 and the UT54ACTS245 are non-inverting octal bus transceivers designed for asynchronous two-way communication between data buses.
The control function implementation minimizes external timing requirements.
The devices allow 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 devices are characterized over full military temperature range of -55 C to +125 C.
FUNCTION TABLE ENABLE G L L H DIRECTION CONTROL DIR L H X OPERATION B Data To A Bus A Data To B Bus Isolation PINOUTS 20-Pin DIP Top View DIR A1 A2 A3 A4 A5 A6 A7 A8 VSS 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 VDD G B1 B2 B3 B4 B5 B6 B7 B8 20-Lead Flatpack Top View DIR A1 A2 A3 A4 A5 A6 A7 A8 VSS 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 VDD G B1 B2 B3 B4 B5 B6 B7 B8 LOGIC SYMBOL G DIR (19) (1) G3 3 EN1 (BA) 3 EN2 (AB) (18) 1 2 (17) (16) (15) (14) B1 B2 B3 B4 A1 A2 A3 A4 A5 A6 A7 A8 (2) (3) (4) (5) (6) (7) (8) (9) B5 (13) B6 (12) B7 (11) B8 Note: 1.
Logic symbol in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
165 RadHard MSI Logic UT54ACS245/UT54ACTS245 LOGIC DIAGRAM DIR (1) (19) G A1 (2) (18) B1 A2 (3) (17) B2 www.
DataSheet4U.
com A3 (4) (16) B3 A4 (5) (15) B4 A5 (6) (14) B5 A6 (7) (13) B6 A7 (8) (12) B7 A8 (9) (11) B8 RadHard MSI Logic 166 UT54ACS245/UT54ACTS245 RADIATION HARDNESS SPECIFICATIONS 1 PARAMETER Total Dose SEU Threshold 2 SEL Threshold Neutron Fluence LIMIT 1.
0E6 80 120 1.
0E14 UNITS rads(Si) M...


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