BIDIRECTIONAL TRANSCEIVER. MC74ACT245 Datasheet

MC74ACT245 TRANSCEIVER. Datasheet pdf. Equivalent


Part MC74ACT245
Description OCTAL BIDIRECTIONAL TRANSCEIVER
Feature MC74AC245, MC74ACT245 Octal Bidirectional Transceiver with 3-State Inputs/Outputs The MC74AC245/74A.
Manufacture ON Semiconductor
Datasheet
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MC74AC245, MC74ACT245 Octal Bidirectional Transceiver with MC74ACT245 Datasheet
( DataSheet : www.DataSheet4U.com ) MC74AC245 MC74ACT245 O MC74ACT245 Datasheet
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MC74ACT245
MC74AC245, MC74ACT245
Octal Bidirectional
Transceiver with 3-State
Inputs/Outputs
The MC74AC245/74ACT245 contains eight non−inverting
bidirectional buffers with 3−state outputs and is intended for
bus−oriented applications. Current sinking capability is 24 mA at both
the A and B ports. The Transmit/Receive (T/R) input determines the
direction of data flow through the bidirectional transceiver. Transmit
(active−HIGH) enables data from A ports to B ports; Receive
(active−LOW) enables data from B ports to A ports. The Output
Enable input, when HIGH, disables both A and B ports by placing
them in a High Z condition.
Features
Noninverting Buffers
Bidirectional Data Path
A and B Outputs Source/Sink 24 mA
ACT245 has TTL Compatible Inputs
These are Pb−Free Devices
PIN ASSIGNMENT
PIN
OE
T/R
A0−A7
B0−B7
FUNCTION
Output Enable Input
Transmit/Receive Input
Side A 3−State Inputs or 3−State Outputs
Side B 3−State Inputs or 3−State Outputs
TRUTH TABLES
Inputs
OE T/R
Outputs
L L Bus B Data to Bus A
L H Bus A Data to Bus B
H X High Z State
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
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SOIC−20W
DW SUFFIX
CASE 751D
1
TSSOP−20
DT SUFFIX
CASE 948E
1
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 6 of this data sheet.
DEVICE MARKING INFORMATION
See general marking information in the device marking
section on page 7 of this data sheet.
VCC OE B0 B1 B2 B3 B4 B5 B6 B7
20 19 18 17 16 15 14 13 12 11
1 2 3 4 5 6 7 8 9 10
T/R A0 A1 A2 A3 A4 A5 A6 A7 GND
Figure 1.
© Semiconductor Components Industries, LLC, 2015
February, 2015 − Rev. 8
1
Publication Order Number:
MC74AC245/D



MC74ACT245
MC74AC245, MC74ACT245
MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
VCC
VIN
VOUT
IIK
IOK
IOUT
ICC
IGND
TSTG
TL
TJ
qJA
DC Supply Voltage (Referenced to GND)
DC Input Voltage (Referenced to GND)
DC Output Voltage (Referenced to GND) (Note 1)
DC Input Diode Current
DC Output Diode Current
DC Output Sink/Source Current
DC Supply Current, per Output Pin
DC Ground Current, per Output Pin
Storage Temperature Range
Lead temperature, 1 mm from Case for 10 Seconds
Junction Temperature Under Bias
Thermal Resistance (Note 2)
SOIC
TSSOP
−0.5 to +7.0
−0.5 to VCC +0.5
−0.5 to VCC +0.5
±20
±50
±50
±50
±100
*65 to )150
260
140
65.8
110.7
V
V
V
mA
mA
mA
mA
mA
_C
_C
_C
_C/W
MSL Moisture Sensitivity
Level 1
FR
VESD
Flammability Rating
ESD Withstand Voltage
Oxygen Index: 30% − 35%
Human Body Model (Note 3)
Machine Model (Note 4)
Charged Device Model (Note 5)
UL 94 V−0 @ 0.125 in
> 2000
> 200
> 1000
V
ILatchup Latchup Performance
Above VCC and Below GND at 85_C (Note 6)
±100
mA
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality
should not be assumed, damage may occur and reliability may be affected.
1. IOUT absolute maximum rating must be observed.
2. The package thermal impedance is calculated in accordance with JESD 51−7.
3. Tested to EIA/JESD22−A114−A.
4. Tested to EIA/JESD22−A115−A.
5. Tested to JESD22−C101−A.
6. Tested to EIA/JESD78.
RECOMMENDED OPERATING CONDITIONS
Symbol
Parameter
Min Typ Max Unit
VCC Supply Voltage
AC
ACT
2.0 5.0 6.0
4.5 5.0 5.5
V
VIN, VOUT DC Input Voltage, Output Voltage (Ref. to GND)
0
− VCC
V
Input Rise and Fall Time (Note 7)
tr, tf AC Devices except Schmitt Inputs
VCC @ 3.0 V − 150 −
VCC @ 4.5 V
40
ns/V
VCC @ 5.5 V
25
Input Rise and Fall Time (Note 8)
tr, tf ACT Devices except Schmitt Inputs
VCC @ 4.5 V
10
ns/V
VCC @ 5.5 V − 8.0 −
TA Operating Ambient Temperature Range
−40 25
85
°C
IOH Output Current − High
− − −24 mA
IOL Output Current − Low
− − 24 mA
Functional operation above the stresses listed in the Recommended Operating Ranges is not implied. Extended exposure to stresses beyond
the Recommended Operating Ranges limits may affect device reliability.
7. VIN from 30% to 70% VCC; see individual Data Sheets for devices that differ from the typical input rise and fall times.
8. VIN from 0.8 V to 2.0 V; see individual Data Sheets for devices that differ from the typical input rise and fall times.
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