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| 型号： | SN54LVTH2245W |
| 厂商： | Texas Instruments, Inc. |
| 英文描述： | Octal 3-State Non-Inverting Transparent Latch; Package: TSSOP 20 LEAD; No of Pins: 20; Container: Tape and Reel; Qty per Container: 2500 |
| 中文描述： | 的3.3V ABT生根粉3八路总线收发器态输出 |
| 文件页数： | 1/7页 |
| 文件大小： | 108K |
| 代理商： | SN54LVTH2245W |
SN54LVTH2245, SN74LVTH2245
3.3-V ABT OCTAL BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCBS707C – SEPTEMBER 1997 – REVISED APRIL 1999
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
B-Port Outputs Have Equivalent 22-
Series Resistors, So No External Resistors
Are Required
I
off
and Power-Up 3-State Support Hot
Insertion
Bus Hold on Data Inputs Eliminates the
Need for External Pullup/Pulldown
Resistors
Support Mixed-Mode Signal Operation (5-V
Input and Output Voltages With 3.3-V V
CC
)
Support 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
JESD 17
ESD Protection Exceeds 2000 V Per
MIL-STD-883, Method 3015; Exceeds 200 V
Using Machine Model (C = 200 pF, R = 0)
Package Options Include Plastic
Small-Outline (DW), Shrink Small-Outline
(DB), and Thin Shrink Small-Outline (PW)
Packages, Ceramic Chip Carriers (FK),
Ceramic Flat (W) Packages, and Ceramic
(J) DIPs
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.
These devices are designed for asynchronous communication between data buses. They transmit data from
the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction-control (DIR)
input. The output-enable (OE) input can be used to disable the devices 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 B-port outputs, which are designed to source or sink up to 12 mA, include equivalent 22-
series resistors
to reduce overshoot and undershoot.
When V
CC
is between 0 and 1.5 V, the devices are in the high-impedance state during power up or power down.
However, to ensure the high-impedance state above 1.5 V, OE should be tied to V
CC
through a pullup resistor;
the minimum value of the resistor is determined by the current-sinking capability of the driver.
Copyright
1999, Texas Instruments Incorporated
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.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
SN54LVTH2245 . . . J OR W PACKAGE
SN74LVTH2245 . . . 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
SN54LVTH2245 . . . FK PACKAGE
(TOP VIEW)
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
相关PDF资料 |
PDF描述 |
|---|---|
| SN74LVTH2245DB | 3.3-V ABT OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS |
| SN54LVTH2245FK | Octal 3-State Non-Inverting Transparent Latch; Package: TSSOP 20 LEAD; No of Pins: 20; Container: Rail; Qty per Container: 75 |
| SN54LVTH245 | 3.3V ABT Octal Bus Transceivers and Registers With 3-State Outputs(3.3V ABT八总线收发器(三态输出)) |
| SN54LVTH374FK | 8/Bit Shift Register; Package: SOIC 16 LEAD; No of Pins: 16; Container: Tape and Reel; Qty per Container: 2500 |
| SN54LVTH374J | 8/Bit Shift Register; Package: SOIC 16 LEAD; No of Pins: 16; Container: Tape and Reel; Qty per Container: 2500 |
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