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MC74AC245のメーカーはON Semiconductorです、この部品の機能は「OCTAL BIDIRECTIONAL TRANSCEIVER」です。 |
部品番号 | MC74AC245 |
| |
部品説明 | OCTAL BIDIRECTIONAL TRANSCEIVER | ||
メーカ | ON Semiconductor | ||
ロゴ | |||
このページの下部にプレビューとMC74AC245ダウンロード(pdfファイル)リンクがあります。 Total 8 pages
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
www.onsemi.com
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
1 Page MC74AC245, MC74ACT245
DC CHARACTERISTICS
Symbol
Parameter
VIH Minimum High Level
Input Voltage
VIL Maximum Low Level
Input Voltage
VOH Minimum High Level
Output Voltage
74AC
74AC
VCC
(V)
TA = +25°C
TA =
−40°C to
+85°C
Typ Guaranteed Limits
3.0 1.5 2.1
4.5 2.25 3.15
5.5 2.75 3.85
2.1
3.15
3.85
3.0 1.5 0.9
4.5 2.25 1.35
5.5 2.75 1.65
0.9
1.35
1.65
3.0 2.99 2.9
4.5 4.49 4.4
5.5 5.49 5.4
2.9
4.4
5.4
Unit
V
V
V
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
V
V
3.0 − 0.36
4.5 − 0.36
5.5 − 0.36
0.44
0.44
0.44
V
IIN Maximum Input
Leakage Current
5.5 − ±0.1
±1.0
mA
IOZT
Maximum
3-State
Current
5.5 − ±0.6
±6.0
mA
IOLD
IOHD
†Minimum Dynamic
Output Current
5.5 − −
5.5 − −
75
−75
mA
mA
ICC Maximum Quiescent
Supply Current
5.5 − 8.0
80.0
mA
*All outputs loaded; thresholds on input associated with output under test.
†Maximum test duration 2.0 ms, one output loaded at a time.
NOTE: IIN and ICC @ 3.0 V are guaranteed to be less than or equal to the respective limit @ 5.5 V VCC.
Conditions
VOUT = 0.1 V
or VCC − 0.1 V
VOUT = 0.1 V
or VCC − 0.1 V
IOUT = −50 mA
*VIN = VIL or VIH
−12 mA
IOH −24 mA
−24 mA
IOUT = 50 mA
*VIN = VIL or VIH
12 mA
IOL 24 mA
24 mA
VI = VCC, GND
VI (OE) = VIL, VIH
VI = VCC, GND
VO = VCC, GND
VOLD = 1.65 V Max
VOHD = 3.85 V Min
VIN = VCC or GND
www.onsemi.com
3
3Pages MC74AC245, MC74ACT245
ORDERING INFORMATION
Device
Package
Shipping†
MC74AC245DWG
SOIC−20
(Pb−Free)
38 Units / Rail
MC74AC245DWR2G
SOIC−20
(Pb−Free)
1000 / Tape & Reel
MC74ACT245DWG
SOIC−20
(Pb−Free)
38 Units / Rail
MC74ACT245DWR2G
SOIC−20
(Pb−Free)
1000 / Tape & Reel
MC74AC245DTG
TSSOP−20
(Pb−Free)
75 Units / Rail
MC74AC245DTR2G
TSSOP−20
(Pb−Free)
2500 / Tape & Reel
MC74ACT245DTG
TSSOP−20
(Pb−Free)
75 Units / Rail
MC74ACT245DTR2G
TSSOP−20
(Pb−Free)
2500 / Tape & Reel
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.
MARKING DIAGRAMS
SOIC−20W
20
AC245
AWLYYWWG
1
TSSOP−20
20
AC
245
ALYWG
G
1
20
ACT245
AWLYYWWG
1
20
ACT
245
ALYWG
G
1
A = Assembly Location
WL, L = Wafer Lot
YY, Y = Year
WW, W = Work Week
G or G = Pb−Free Package
(Note: Microdot may be in either location)
www.onsemi.com
6
6 Page | |||
ページ | 合計 : 8 ページ | ||
|
PDF ダウンロード | [ MC74AC245 データシート.PDF ] |
データシートを活用すると、その部品の主な機能と仕様を詳しく理解できます。 ピン構成、電気的特性、動作パラメータ、性能を確認してください。 |
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