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參數(shù)資料
| 型號(hào)： | SN74LVTR245DB |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | 3.3-V ABT OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS |
| 中文描述： | 的3.3V ABT生根粉3八路總線(xiàn)收發(fā)器態(tài)輸出 |
| 文件頁(yè)數(shù)： | 1/7頁(yè) |
| 文件大?。?/td> | 117K |
| 代理商： | SN74LVTR245DB |
SN54LVTR245, SN74LVTR245
3.3-V ABT OCTAL BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCAS428 – OCTOBER 1993
Copyright
1993, Texas Instruments Incorporated
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
State-of-the-Art Advanced BiCMOS
Technology (ABT) Design for 3.3-V
Operation and Low-Static Power
Dissipation
Supports Mixed-Mode Signal Operation
(5-V Input and Output Voltages With
3.3-V V
CC
)
Supports Unregulated Battery Operation
Down to 2.7 V
Typical V
OLP
(Output Ground Bounce)
< 0.8 V at V
CC
= 3.3 V, T
A
= 25
°
C
Latch-Up Performance Exceeds 500 mA
Per JEDEC Standard JESD-17
Bus-Hold Data Inputs Eliminate the Need
for External Pullup Resistors
Reduced Output Structure on A Port
Minimizes V
OHV
Package Options Include Plastic
Small-Outline (DW), Shrink Small-Outline
(DB), and Thin Shrink Small-Outline (PW)
Packages, Ceramic Chip Carriers (FK), and
Ceramic DIPs (J)
description
These octal bus transceivers are designed
specifically for low-voltage (3.3-V) V
CC
operation,
but with the capability to provide a TTL interface to
a 5-V system environment.
The
′
LVTR245 is designed for asynchronous communication between data buses. The device transmits data
from the A bus to the B bus or from the B bus to the A bus depending upon the logic level at the direction-control
(DIR) input. The output-enable (OE) input can be used to disable the device so the buses are effectively isolated.
Active bus-hold circuitry is provided to hold unused or floating data inputs at a valid logic level.
The A port is designed to minimize the undershoot exhibited on high to low transition during simultaneous
switching conditions.
The SN74LVTR245 is available in TI’s shrink small-outline package (DB), which provides the same I/O pin count
and functionality of standard small-outline packages in less than half the printed-circuit-board area.
The SN54LVTR245 is characterized for operation over the full military temperature range of –55
°
C to 125
°
C.
The SN74LVTR245 is characterized for operation from –40
°
C to 85
°
C.
FUNCTION TABLE
INPUTS
OPERATION
OE
L
DIR
L
B data to A bus
L
H
A data to B bus
H
X
Isolation
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
DIR
A1
A2
A3
A4
A5
A6
A7
A8
GND
V
CC
OE
B1
B2
B3
B4
B5
B6
B7
B8
SN54LVTR245 . . . J PACKAGE
SN74LVTR245 . . . DB, DW, OR PW PACKAGE
(TOP VIEW)
3
2
1 20 19
9 10 11 12 13
4
5
6
7
8
18
17
16
15
14
B1
B2
B3
B4
B5
A3
A4
A5
A6
A7
A
A
D
B
B
O
A
G
B
V
C
SN54LVTR245 . . . FK PACKAGE
(TOP VIEW)
UNLESS OTHERWISE NOTED this document contains PRODUCTION
DATA information current as of publication date. Products conform to
specifications per the terms of Texas Instruments standard warranty.
parameters.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SN54LVTR245 | Dual D-Type Flip-Flop with Set and Reset; Package: SOEIAJ-14; No of Pins: 14; Container: Rail; Qty per Container: 50 |
| SN54LVTR245FK | Dual D-Type Flip-Flop with Set and Reset; Package: PDIP-14; No of Pins: 14; Container: Rail; Qty per Container: 500 |
| SN54LVTR245J | Dual D-Type Flip-Flop with Set and Reset; Package: PDIP-14; No of Pins: 14; Container: Rail; Qty per Container: 500 |
| SN74LVTR245DW | 3.3-V ABT OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS |
| SN74S1050N | 12-BIT SCHOTTKY BARRIER DIODE BUS-TERMINATION ARRAY |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SN74LVTR245DBLE | 制造商:Texas Instruments 功能描述: |
| SN74LVTR245DW | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| SN74LVTR245DWR | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| SN74LVTR245PWR | 制造商:Rochester Electronics LLC 功能描述:ABT OCTAL BUS TRANSCEIVER - Bulk |
| SN74LVTT240DBLE | 制造商:Texas Instruments 功能描述: |
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