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SN74LVTZ244DBR PDF预览

SN74LVTZ244DBR

更新时间： 2024-11-15 11:08:03
品牌 Logo 应用领域
德州仪器 - TI 驱动总线驱动器总线收发器
页数 文件大小 规格书
7页 121K
描述
具有总线保持、TTL 兼容型 CMOS 输入和三态输出的 8 通道、2.7V 至 3.6V 缓冲器 | DB | 20 | -40 to 85

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SN74LVTZ244DBR 数据手册

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SN54LVTZ244, SN74LVTZ244  
3.3-V ABT OCTAL BUFFERS/DRIVERS  
WITH 3-STATE OUTPUTS  
SCBS302C – SEPTEMBER 1993 – REVISED JULY 1995  
SN54LVTZ244 . . . J PACKAGE  
SN74LVTZ244 . . . DB, DW, OR PW PACKAGE  
(TOP VIEW)  
State-of-the-Art Advanced BiCMOS  
Technology (ABT) Design for 3.3-V  
Operation and Low-Static Power  
Dissipation  
1OE  
1A1  
2Y4  
1A2  
2Y3  
1A3  
2Y2  
1A4  
2Y1  
GND  
V
CC  
1
2
3
4
5
6
7
8
9
10  
20  
High-Impedance State During Power Up  
and Power Down  
19 2OE  
18 1Y1  
17 2A4  
Support Mixed-Mode Signal Operation (5-V  
Input and Output Voltages With 3.3-V V  
)
16  
15  
14  
13  
12  
11  
1Y2  
2A3  
1Y3  
2A2  
1Y4  
2A1  
CC  
Support Unregulated Battery Operation  
Down to 2.7 V  
Typical V  
< 0.8 V at V  
(Output Ground Bounce)  
OLP  
= 3.3 V, T = 25°C  
CC  
A
Latch-Up Performance Exceeds 500 mA  
Per JEDEC Standard JESD-17  
SN54LVTZ244 . . . FK PACKAGE  
(TOP VIEW)  
Bus-Hold Data Inputs Eliminate the Need  
for External Pullup Resistors  
Package Options Include Plastic  
Small-Outline (DW), Shrink Small-Outline  
(DB), and Thin Shrink Small-Outline (PW)  
Packages, Ceramic Chip Carriers (FK), and  
Ceramic (J) DIPs  
3
2
1 20 19  
18  
1Y1  
2A4  
1Y2  
2A3  
1Y3  
1A2  
2Y3  
1A3  
2Y2  
1A4  
4
5
6
7
8
17  
16  
15  
14  
description  
These octal buffers/drivers are designed  
specifically for low-voltage (3.3-V) V operation  
9 10 11 12 13  
CC  
with the capability to provide a TTL interface to a  
5-V system environment.  
These devices are organized as two 4-bit line drivers with separate output-enable (OE) inputs. When OE is low,  
the device passes data from the A inputs to the Y outputs. When OE is high, the outputs are in the  
high-impedance state.  
Active bus-hold circuitry is provided to hold unused or floating data inputs at a valid logic level.  
The SN74LVTZ244 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 SN54LVTZ244 is characterized for operation over the full military temperature range of –55°C to 125°C.  
The SN74LVTZ244 is characterized for operation from –40°C to 85°C.  
FUNCTION TABLE  
(each buffer)  
INPUTS  
OUTPUT  
Y
OE  
A
H
L
L
L
H
L
H
X
Z
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.  
Copyright 1995, 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.  
Production processing does not necessarily include testing of all  
parameters.  
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
1234567

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SN74LVTZ244DBR 替代型号

型号 品牌 替代类型 描述 数据表
SN74LVTZ244DBRE4 TI

完全替代

 LVT SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, PDSO20, GREEN, PLASTIC, SSOP-20
SN74LVTZ244DBLE TI

完全替代

 3.3-V ABT Octal Buffers/Drivers With 3-State Outputs 20-SSOP -40 to 85

与SN74LVTZ244DBR相关器件

型号 品牌 获取价格 描述 数据表
SN74LVTZ244DBRE4 TI

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 		LVT SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, PDSO20, GREEN, PLASTIC, SSOP-20
SN74LVTZ244DW TI

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 		具有总线保持、TTL 兼容型 CMOS 输入和三态输出的 8 通道、2.7V 至 3.6V
SN74LVTZ244DWE4 TI

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 		LVT SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, PDSO20, PLASTIC, SO-20
SN74LVTZ244DWR TI

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 		具有总线保持、TTL 兼容型 CMOS 输入和三态输出的 8 通道、2.7V 至 3.6V
SN74LVTZ244PWLE TI

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 		3.3-V ABT Octal Buffers/Drivers With 3-State Outputs 20-TSSOP -40 to 85
SN74LVTZ244PWR TI

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 		具有总线保持、TTL 兼容型 CMOS 输入和三态输出的 8 通道、2.7V 至 3.6V
SN74LVTZ244PWRG4 TI

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 		LVT SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, PDSO20, GREEN, PLASTIC, TSSOP-20
SN74LVTZ245 TI

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 		3.3-V ABT OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS
SN74LVTZ245DBLE TI

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 		3.3-V ABT Octal Bus Transceivers With 3-State Outputs 20-SSOP -40 to 85
SN74LVTZ245DBR TI

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 		LVT SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, PDSO20, PLASTIC, SSOP-20

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