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SN74BCT979DLR Datasheet(PDF) 5 Page - Texas Instruments

Part # SN74BCT979DLR
Description  9-BIT REGISTERED BTL TRANSCEIVER WITH PARITY GENERATOR/CHECKER
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

SN74BCT979DLR Datasheet(HTML) 5 Page - Texas Instruments

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SN74BCT979
9BIT REGISTERED BTL TRANSCEIVER
WITH PARITY GENERATOR/CHECKER
SCBS115A − OCTOBER 1990 − REVISED NOVEMBER 1993
5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251−1443
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage range, VCC
−0.5 V to 7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage range, VI (see Note 1): B1−B8, BPAR
−0.5 V to 5.5 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other inputs
−0.5 V to 7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Voltage range applied to any output in the disabled or power-off state, VO
−0.5 V to 7 V
. . . . . . . . . . . . . . . . .
Voltage range applied to any output in the high state, VO
−0.5 V to VCC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input clamp current, IIK (VI < 0) (A port)
−30 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Current into any output in the low state, IO: A port
48 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
B port
200 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating free-air temperature range
0
°C to 70°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maximum power dissipation at TA = 55°C (in still air)
0.85 W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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 (see Note 2)
MIN
NOM
MAX
UNIT
VCC
Supply voltage
4.5
5
5.5
V
VIH
High-level input voltage
B1 − B8, BPAR
1.6
V
VIH
High-level input voltage
Other inputs
2
V
VIL
Low-level input voltage
B1 − B8, BPAR
1.47
V
VIL
Low-level input voltage
Other inputs
0.8
V
VOH
High-level output voltage
B1 − B8, BPAR
2.1
mA
IIK
Input clamp current
−18
mA
IOH
High-level output current
AO1 − AO8, APARO, ERRA, ERRB
−3
mA
IOL
Low-level output current
AO1 − AO8, APARO, ERRA, ERRB
24
mA
IOL
Low-level output current
B1 − B8, BPAR
100
mA
∆t/∆v
Input transition rise or fall rate
Outputs enabled
10
ns / V
TA
Operating free-air temperature
0
70
°C
NOTE 2: Unused or floating pins (input or I/O) must be held high or low.


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