SN74AHC245Q Transceivers Datasheet

SN74AHC245Q Datasheet, PDF, Equivalent


Part Number

SN74AHC245Q

Description

Octal Bus Transceivers

Manufacture

etcTI

Total Page 16 Pages
Datasheet
Download SN74AHC245Q Datasheet


SN74AHC245Q
SN74AHC245Q
OCTAL BUS TRANSCEIVER
WITH 3-STATE OUTPUTS
SGDS018 – FEBRUARY 2002
D Q Devices Meet Automotive Performance
Requirements
D Customer-Specific Configuration Control
Can Be Supported Along With
Major-Change Approval
D Operating Range 2-V to 5.5-V VCC
D Latch-Up Performance Exceeds 250 mA Per
JESD 17
description
The SN74AHC245Q octal bus transceiver is
designed for asynchronous two-way
communication between data buses. The
control-function implementation minimizes
external timing requirements.
DW OR PW PACKAGE
(TOP VIEW)
DIR
A1
A2
A3
A4
A5
A6
A7
A8
GND
1
2
3
4
5
6
7
8
9
10
20 VCC
19 OE
18 B1
17 B2
16 B3
15 B4
14 B5
13 B6
12 B7
11 B8
This device allows data transmission from the A bus to the B bus or from the B bus to the A bus, depending on
the logic level at the direction-control (DIR) input. The output-enable (OE) input can be used to disable the
device so that the buses are effectively isolated.
To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup
resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
ORDERING INFORMATION
TA
PACKAGE†
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
–40°C to 125°C
SOIC – DW
TSSOP – PW
Tape and reel
Tape and reel
SN74AHC245QDWR
SN74AHC245QPWR
AHC245Q
HA245Q
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines
are available at www.ti.com/sc/package.
FUNCTION TABLE
(each transceiver)
INPUTS
OE DIR
OPERATION
L L B data to A bus
L H A data to B bus
HX
Isolation
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
Copyright 2002, Texas Instruments Incorporated
1

SN74AHC245Q
SN74AHC245Q
OCTAL BUS TRANSCEIVER
WITH 3-STATE OUTPUTS
SGDS018 FEBRUARY 2002
logic symbol
19
OE
1
DIR
G3
3 EN1 [BA]
3 EN2 [AB]
2
A1
3
A2
4
A3
5
A4
6
A5
7
A6
8
A7
9
A8
1
2
18
B1
17
B2
16
B3
15
B4
14
B5
13
B6
12
B7
11
B8
This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
logic diagram (positive logic)
1
DIR
19
OE
A1 2
18
B1
To Seven Other Channels
2 POST OFFICE BOX 655303 DALLAS, TEXAS 75265


Features SN74AHC245Q OCTAL BUS TRANSCEIVER WITH 3 -STATE OUTPUTS SGDS018 – FEBRUARY 200 2 D Q Devices Meet Automotive Performa nce Requirements D Customer-Specific Co nfiguration Control Can Be Supported Al ong With Major-Change Approval D Operat ing Range 2-V to 5.5-V VCC D Latch-Up P erformance Exceeds 250 mA Per JESD 17 d escription The SN74AHC245Q octal bus tr ansceiver is designed for asynchronous two-way communication between data buse s. The control-function implementation minimizes external timing requirements. DW OR PW PACKAGE (TOP VIEW) DIR A1 A 2 A3 A4 A5 A6 A7 A8 GND 1 2 3 4 5 6 7 8 9 10 20 VCC 19 OE 18 B1 17 B2 16 B3 15 B4 14 B5 13 B6 12 B7 11 B8 This dev ice allows data transmission from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction-control (DIR) input. The output-enable (OE) input can be use d to disable the device so that the bus es are effectively isolated. To ensure the high-impedance state during power up or power down, OE shoul.
Keywords SN74AHC245Q, datasheet, pdf, etcTI, Octal, Bus, Transceivers, N74AHC245Q, 74AHC245Q, 4AHC245Q, SN74AHC245, SN74AHC24, SN74AHC2, Equivalent, stock, pinout, distributor, price, schematic, inventory, databook, Electronic, Components, Parameters, parts, cross reference, chip, Semiconductor, circuit, Electric, manual, substitute




@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site (Privacy Policy & Contact)