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74ACT245PC PDF даташит

Спецификация 74ACT245PC изготовлена ​​​​«Fairchild Semiconductor» и имеет функцию, называемую «Octal Bidirectional Transceiver with 3-STATE Inputs/Outputs».

Детали детали

Номер произв 74ACT245PC
Описание Octal Bidirectional Transceiver with 3-STATE Inputs/Outputs
Производители Fairchild Semiconductor
логотип Fairchild Semiconductor логотип 

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74ACT245PC Даташит, Описание, Даташиты
November 1988
Revised November 1999
74AC245 74ACT245
Octal Bidirectional Transceiver with 3-STATE
Inputs/Outputs
General Description
The AC/ACT245 contains eight non-inverting bidirectional
buffers with 3-STATE outputs and is intended for bus-ori-
ented 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 bidirec-
tional 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
s ICC and IOZ reduced by 50%
s Noninverting buffers
s Bidirectional data path
s A and B outputs source/sink 24 mA
s ACT245 has TTL-compatible inputs
Ordering Code:
Order Number Package Number
Package Description
74AC245SC
M20B
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300Wide Body
74AC245SJ
M20D
20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74AC245MTC
74AC245PC
MTC20
N20A
20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
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20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300Wide
74ACT245SC
M20B
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300Wide Body
74ACT245SJ
M20D
20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74ACT245MSA
MSA20
20-Lead Shrink Small Outline Package (SSOP), EIAJ TYPE II, 5.3mm Wide
74ACT245MTC
MTC20
20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
74ACT245PC
N20A
20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300Wide
Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code.
FACTis a trademark of Fairchild Semiconductor Corporation.
© 1999 Fairchild Semiconductor Corporation DS009944
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74ACT245PC Даташит, Описание, Даташиты
Connection Diagram
Logic Symbols
IEEE/IEC
Pin Descriptions
Pin
Names
Description
OE
T/R
A0A7
B0B7
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 Table
Inputs
OE T/R
LL
LH
HX
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
Outputs
Bus B Data to Bus A
Bus A Data to Bus B
HIGH-Z State
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74ACT245PC Даташит, Описание, Даташиты
Absolute Maximum Ratings(Note 1)
Supply Voltage (VCC)
DC Input Diode Current (IIK)
VI = −0.5V
VI = VCC + 0.5V
DC Input Voltage (VI)
DC Output Diode Current (IOK)
VO = −0.5V
VO = VCC + 0.5V
DC Output Voltage (VO)
DC Output Source
or Sink Current (IO)
DC VCC or Ground Current
per Output Pin (ICC or IGND)
Storage Temperature (TSTG)
Junction Temperature (TJ)
PDIP
0.5V to +7.0V
20 mA
+20 mA
0.5V to VCC + 0.5V
20 mA
+20 mA
0.5V to VCC + 0.5V
±50 mA
±50 mA
65°C to +150°C
140°C
Recommended Operating
Conditions
Supply Voltage (VCC)
AC
2.0V to 6.0V
ACT
4.5V to 5.5V
Input Voltage (VI)
Output Voltage (VO)
Operating Temperature (TA)
Minimum Input Edge Rate (V/t)
0V to VCC
0V to VCC
40°C to +85°C
AC Devices
VIN from 30% to 70% of VCC
VCC @ 3.3V, 4.5V, 5.5V
Minimum Input Edge Rate (V/t)
125 mV/ns
ACT Devices
VIN from 0.8V to 2.0V
VCC @ 4.5V, 5.5V
125 mV/ns
Note 1: Absolute maximum ratings are those values beyond which damage
to the device may occur. The databook specifications should be met, with-
out exception, to ensure that the system design is reliable over its power
supply, temperature, and output/input loading variables. Fairchild does not
recommend operation of FACTcircuits outside databook specifications.
DC Electrical Characteristics for AC
Symbol
Parameter
VIH Minimum HIGH Level
Input Voltage
VIL Maximum LOW Level
Input Voltage
VOH Minimum HIGH Level
Output Voltage
VCC
TA = +25°C
TA = −40°C to +85°C
(V) Typ
Guaranteed Limits
3.0 1.5
2.1
2.1
4.5 2.25 3.15
3.15
5.5 2.75 3.85
3.85
3.0 1.5
0.9
0.9
4.5 2.25 1.35
1.35
5.5 2.75 1.65
1.65
3.0 2.99
2.9
2.9
4.5 4.49
4.4
4.4
5.5 5.49
5.4
5.4
VOL Maximum LOW Level
Output Voltage
3.0 2.56
4.5 3.86
5.5 4.86
3.0 0.002
0.1
4.5 0.001
0.1
5.5 0.001
0.1
2.46
3.76
4.76
0.1
0.1
0.1
IIN (Note 4) Maximum Input Leakage Current
IOLD
Dynamic Output
IOHD
Current Minimum (Note 3)
ICC (Note 4) Maximum Quiescent Supply Current
IOZT
Maximum I/O
Leakage Current
3.0
4.5
5.5
5.5
5.5
5.5
5.5
5.5
0.36
0.36
0.36
± 0.1
4.0
± 0.3
0.44
0.44
0.44
± 1.0
75
75
40.0
± 3.0
Note 2: All outputs loaded; thresholds on input associated with output under test.
Note 3: Maximum test duration 2.0 ms, one output loaded at a time.
Note 4: IIN and ICC @ 3.0V are guaranteed to be less than or equal to the respective limit @ 5.5V VCC.
Units
Conditions
VOUT = 0.1V
V or VCC 0.1V
VOUT = 0.1V
V or VCC 0.1V
V IOUT = −50 µA
VIN = VIL or VIH
IOH = −12 mA
V IOH = −24 mA
IOH = −24 mA (Note 2)
V IOUT = 50 µA
VIN = VIL or VIH
IOL = 12 mA
V IOL = 24 mA
IOL = 24 mA (Note 2)
µA VI = VCC, GND
mA VOLD = 1.65V Max
mA VOHD = 3.85V Min
µA VIN = VCC or GND
VI (OE) = VIL, VIH
µA VI = VCC, GND
VO = VCC, GND
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Номер в каталогеОписаниеПроизводители
74ACT245PCOctal Bidirectional Transceiver with 3-STATE Inputs/OutputsFairchild Semiconductor
Fairchild Semiconductor

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