SN74LV1T08 datasheet(10/25 Pages) TI1

部件名	SN74LV1T08

功能描述	Single Power Supply Quadruple Buffer Translator GATE With 3-State Output CMOS Logic Level Shifter

Download	25 Pages

Scroll/Zoom	100%

制造商	TI1 [Texas Instruments]

网页	http://www.ti.com

标志

10 / 25 page

1OE

1A

2OE

2A

1Y

2Y

3OE

3A

4OE

4A

3Y

4Y

SN74LV4T125

SCLS749B – FEBRUARY 2014 – REVISED SEPTEMBER 2014

www.ti.com

9 Detailed Description

9.1 Overview

The SN74LVxTxx family was created to allow up- or down-voltage translation with only one power rail. The family

has over-voltage tolerant inputs that allow down translation from up to 5.5 V to the VCC level that can be as low

as 1.8 V. The family SN74LVxTxx also has a lowered switching threshold that allows it to translate up to the VCC

level that can be as high as 5.5 V.

9.1.1 Translating Down

Using these parts to translate down is very simple. Because the inputs are tolerant to 5.5 V at any valid VCC, they

can be used to down translate. The input can be any level above VCC up to 5.5 V and the output will equal the

VCC level, which can be as low as 1.8 V. One important advantage to down translating using this part is that the

ICC current will remain less than or equal to the specified value.

Down translation possibilities with SN74LVxTxx:

•

With 1.8-V VCC from 2.5 V, 3.3 V, or 5 V down to 1.8 V.

•

With 2.5-V VCC from 3.3 V or 5 V down to 2.5 V.

•

With 3.3-V VCC from 5 V down to 3.3 V.

9.1.2 Translating Up

Using the SN74LVxTxx family to translate up is very simple. The input switching threshold is lowered so the high

level of the input voltage can be much lower than a typical CMOS VIH. For instance, If the VCC is 3.3 V then the

typical CMOS switching threshold would be VCC / 2 or 1.65 V. This means the input high level must be at least

VCC × 0.7 or 2.31 V. On the LVxT devices the input threshold for 3.3-V VCC is approximately 1 V. This allows a

signal with a 1.8-V VIH to be translated up to the VCC level of 3.3 V.

Up translation possibilities with SN74LVxTxx:

•

With 2.5-V VCC from 1.8 V to 2.5 V.

•

With 3.3-V VCC from 1.8 V or 2.5 V to 3.3 V.

•

With 5-V VCC From 2.5 V or 3.3 V to 5 V.

9.2 Functional Block Diagram

10

Submit Documentation Feedback

Product Folder Links: SN74LV4T125

类似零件编号 - SN74LV1T08

制造商	部件名	数据表	功能描述
Texas Instruments	SN74LV1T08	848Kb / 16P	[Old version datasheet] Single Power Supply 2-Input Positive AND Gate CMOS Logic Level Shifter
	SN74LV1T08	949Kb / 20P	[Old version datasheet] SN74LV1T125 Single Power Supply Single Buffer Gate with 3-State Output CMOS Logic Level Shifter
	SN74LV1T08	898Kb / 18P	[Old version datasheet] Single Power Supply Inverter Gate CMOS Logic Level Shifter
	SN74LV1T08	899Kb / 18P	[Old version datasheet] Single Power Supply 2-Input Positive OR Gate CMOS Logic Level Shifter
	SN74LV1T08	922Kb / 19P	[Old version datasheet] Single Power Supply 2-INput Exclusive-OR Gate CMOS Logic Level Shifter

More results

类似说明 - SN74LV1T08

制造商	部件名	数据表	功能描述
Texas Instruments	SN54SC4T125-SEP	918Kb / 18P	[Old version datasheet] SN54SC4T125-SEP Radiation Tolerant, Single Power Supply Quadruple Buffer Translator GATE With 3-State Output CMOS Logic Level Shifter NOVEMBER 2023
	SN54SC4T125-SEP	1,011Kb / 23P	[Old version datasheet] SN54SC4T125-SEP Radiation Tolerant, Single Power Supply Quadruple Buffer Translator GATE With 3-State Output CMOS Logic Level Shifter NOVEMBER 2023
	SN74LV1T125	1Mb / 25P	[Old version datasheet] Single Power Supply Single Buffer Gate with 3-State Output CMOS Logic Level Shifter
	SN74LV1T126	1Mb / 25P	[Old version datasheet] Single Power Supply Single Buffer Gate with 3-State Output CMOS Logic Level Shifter
	SN74LV1T125	1Mb / 22P	[Old version datasheet] Single Power Supply Single Buffer Gate with 3-State Output CMOS Logic Level Shifter
	SN74LV1T126	1Mb / 22P	[Old version datasheet] Single Power Supply Single Buffer Gate with 3-State Output CMOS Logic Level Shifter
	SN74LV1T126	948Kb / 20P	[Old version datasheet] SN74LV1T126 Single Power Supply Single Buffer Gate with 3-State Output CMOS Logic Level Shifter
	SN74LV1T125	949Kb / 20P	[Old version datasheet] SN74LV1T125 Single Power Supply Single Buffer Gate with 3-State Output CMOS Logic Level Shifter
Renesas Technology Corp	HD74LV1GT125A	116Kb / 8P	Bus Buffer Gate with 3.state Output / CMOS Logic Level Shifter
Renesas Technology Corp	HD74LV1GT126A	113Kb / 8P	Bus Buffer Gate with 3.state Output / CMOS Logic Level Shifter