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Texas Instruments (TI) Electronic Components Datasheet

SN74BCT29861B Datasheet

10-Bit Bus Transceiver

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BiCMOS Design Substantially Reduces
Standby Current
Functionally Equivalent to SN74ALS29861
and AMD Am29861A
Power-Up High-Impedance State
Package Options Include Plastic
Small-Outline (DW) Packages and Standard
Plastic 300-mil DIPs (NT)
description
This 10-bit bus transceiver is designed for
asynchronous communication between data
buses. The control-function implementation
allows for maximum flexibility in timing.
SN74BCT29861B
10ĆBIT BUS TRANSCEIVER
WITH 3ĆSTATE OUTPUTS
SCBS009D − NOVEMBER 1988 − REVISED NOVEMBER 1993
DW OR NT PACKAGE
(TOP VIEW)
OEBA
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
GND
1
2
3
4
5
6
7
8
9
10
11
12
24 VCC
23 B1
22 B2
21 B3
20 B4
19 B5
18 B6
17 B7
16 B8
15 B9
14 B10
13 OEAB
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 levels at the output-enable (OEBA and OEAB) inputs.
The outputs are in the high-impedance state during power-up and power-down conditions. The outputs remain
in the high-impedance state while the device is powered-down.
The SN74BCT29861B is characterized for operation from 0°C to 70°C.
FUNCTION TABLE
INPUTS
OEAB OEBA
OPERATION
LH
A to B
HL
B to A
HH
Isolation
L
L
Latch A and B
(A = B)
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.
Copyright 1993, Texas Instruments Incorporated
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
POST OFFICE BOX 1443 HOUSTON, TEXAS 77251−1443
1


Texas Instruments (TI) Electronic Components Datasheet

SN74BCT29861B Datasheet

10-Bit Bus Transceiver

No Preview Available !

SN74BCT29861B
10ĆBIT BUS TRANSCEIVER
WITH 3ĆSTATE OUTPUTS
SCBS009D − NOVEMBER 1988 − REVISED NOVEMBER 1993
logic symbol
logic diagram (positive logic)
1
OEBA
13
OEAB
2
A1
3
A2
4
A3
5
A4
6
A5
7
A6
8
A7
9
A8
10
A9
11
A10
EN1
EN2
1
2
23
B1
22
B2
21
B3
20
B4
19
B5
18
B6
17
B7
16
B8
15
B9
14
B10
13
OEAB
A1 2
1
OEBA
23 B1
To Nine Other Channels
This symbol is in accordance with ANSI/IEEE Std 91-1984
and IEC Publication 617-12.
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 7 V
Input voltage (I/O ports) (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 5.5 V
Input voltage (excluding I/O ports) (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 7 V
Voltage applied to any output in the high state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to VCC
Input clamp current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −30 mA
Current into any output in the low state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 mA
Operating free-air temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C
Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65°C to 150°C
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTE 1: The input negative voltage rating may be exceeded if the input clamp current rating is observed.
recommended operating conditions
VCC
VIH
VIL
IIK
IOH
IOL
TA
Supply voltage
High-level input voltage
Low-level input voltage
Input clamp current
High-level output current
Low-level output current
Operating free-air temperature
MIN NOM MAX UNIT
4.5 5 5.5 V
2V
0.8 V
−18 mA
−24 mA
48 mA
0 70 °C
2 POST OFFICE BOX 655303 DALLAS, TEXAS 75265
POST OFFICE BOX 1443 HOUSTON, TEXAS 77251−1443


Part Number SN74BCT29861B
Description 10-Bit Bus Transceiver
Maker Texas
Total Page 4 Pages
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