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參數資料
| 型號： | LVXC4245 |
| 廠商： | ON SEMICONDUCTOR |
| 英文描述： | Dual Supply Octal Translating Transceiver with 3−State Outputs |
| 文件頁數： | 1/10頁 |
| 文件大?。?/td> | 98K |
| 代理商： | LVXC4245 |
Semiconductor Components Industries, LLC, 2005
March, 2005 Rev. 4
1
Publication Order Number:
MC74LVX4245/D
MC74LVX4245
Dual Supply Octal
Translating Transceiver
with 3State Outputs
The 74LVX4245 is a 24pin dualsupply, octal translating
transceiver that is designed to interface between a 5.0 V bus and a 3.0 V
bus in a mixed 3.0 V / 5.0 V supply environment such as laptop
computers using a 3.3 V CPU and 5.0 V LCD display. The A port
interfaces with the 5V bus; the B port interfaces with the 3.0 V bus.
The Transmit/Receive (T/R) input determines the direction of data
flow. Transmit (activeHigh) enables data from the A port to the B
port. Receive (activeLow) enables data from the B port to the A port.
The Output Enable (OE) input, when High, disables both A and B
ports by placing them in 3State.
Features
Bidirectional Interface Between 5.0 V and 3.0 V Buses
Control Inputs Compatible with TTL Level
5.0 V Data Flow at A Port and 3.0 V Data Flow at B Port
Outputs Source/Sink 24 mA at 5.0 V Bus and 12 mA at 3.0 V Bus
Guaranteed Simultaneous Switching Noise Level and Dynamic
Threshold Performance
Available in SOIC and TSSOP Packages
Functionally Compatible with the 74 Series 245
PbFree Packages are Available*
Figure 1. 24Lead Pinout
(Top View)
23
24
22
21
20
19
18
2
1
3
4
5
6
7
V
CCB
17
8
16
9
15
10
V
CCB
OE
B0
B1
B2
B3
B4
B5
B6
V
CCA
T/R
A0
A1
A2
A3
A4
A5
A6
A7
14
11
13
12
B7
GND
GND GND
*For additional information on our PbFree strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
http://onsemi.com
MARKING
DIAGRAMS
SOIC24
DW SUFFIX
CASE 751E
See detailed ordering and shipping information in the package
dimensions section on page 5 of this data sheet.
ORDERING INFORMATION
1
24
LVXC4245
AWLYYWW
A
WL
YY
WW
= Assembly Location
= Wafer Lot
= Year
= Work Week
LVX
4245
AWLYYWW
1
24
1
24
1
24
TSSOP24
DT SUFFIX
CASE 948H
PIN NAMES
Function
Output Enable Input
Transmit/Receive Input
Side A 3State Inputs or 3State
Outputs
Side B 3State Inputs or 3State
Outputs
Pins
OE
T/R
A0A7
B0B7
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