Datasheet > 74AVCH1T45

74AVCH1T45

更新时间： 2024-11-20 14:53:59

品牌	Logo	应用领域
美台 - DIODES		/
页数	文件大小	规格书
17页	561K
描述
Single Bit Voltage Translator with Bus Hold

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74AVCH1T45 数据手册

74AVCH1T45

SINGLE BIT DUAL POWER SUPPLY TRANSLATING

TRANSCEIVER WITH 3 STATE OUTPUTS

Description

Pin Assignments

The 74AVCH1T45 is a single bit, dual supply transceiver with 3-state

outputs suitable for transmitting a single logic bit across different

voltage domains. The 74AVCH1T45 is a variant of the 74AVC1T45

that includes a bus hold feature at each input. The A input/output pin

is designed to track V_CCAwhile the B input/output tracks V_CCB. This

arrangement allows for universal low-voltage translation between any

voltages from 1.2V to 3.6V. The Direction pin (DIR) controls the

(Top View)

Vcc(A)

GND

Vcc(B)

DIR

(Top View)

Vcc(A)

GND

Vcc(B)

direction of the transceiver and in a logic voltage related to V_CCA

SOT26

SOT363

When a high logic level is applied to DIR the A pin becomes an input

and the B pin becomes the output. Conversely the roles of A and B

are reversed when DIR is asserted low.

DIR

(

Bottom View)

X1-DFN1010-6

X2-DFN0910-6

X2-DFN1410-6

The 3-state feature occurs when either of the power supply voltages

are zero. This is also an Ioff feature and allows for the output to

remain in a high impedance state with both power supplies at 0V

preventing damaging backflow currents and providing power down

electrical isolation up to 3.6 V as not to interfere with any logic activity

on pin A or B.

4 B

DIR

GND

Vcc(A)

Vcc(B)

X2-DFN1409-6

Chip Scale

Alternative

The bus hold feature maintains the previous logic level therefore a

valid logic level is always present eliminating the need for additional

resistors for an unused or disconnected inputs.

Applications

Features



Voltage Level Translation:



Wide Supply Voltage Range:

Well suited to join logic types operating at different voltages

Power Down Signal Isolation:

V_CC(A): from 1.2V to 3.6V

V_CC(B): from 1.2V to 3.6V



If either voltage domain is turned off the signal is isolated and

there is no loading on signal lines



± 12mA Output Drive at 3.3V

High Noise Immunity - (100mV hysteresis typical)

I_OFFSupports Partial-Power-Down Mode Operation

I_OFFcontrolled by either V_CCbeing at 0V

Inputs accept up to 4.6V



Wide array of products such as:

Cell Phones, Tablets, E-Readers

PCs, Notebooks, Netbooks, Ultrabooks

Networking, Routers, Gateways

ESD Protection Exceeds JESD 22

Computer Peripherals, Hard Drives, CD/DVD ROMs

TVs, DVDs, DVRs, Set Top Boxes

Personal Navigation / GPS

200-V Machine Model (A115)

2000-V Human Body Model (A114)

1000 V Charged Device Model ( C101)

MP3 players, Cameras, Video Recorders



Latch-Up Exceeds 100mA per JESD 78, Class I

X2-DFN1409-6 package designed as a direct replacement for

chip scale packaging.



Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)

Halogen and Antimony Free. “Green” Device (Note 3)

Notes:

1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.

2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green"

and Lead-free.

3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and

<1000ppm antimony compounds.

1 of 17

www.diodes.com

January 2018

74AVCH1T45

Document number: DS40288 Rev. 1 - 2

12 3 4 5 6 7...17

中文翻译

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与74AVCH1T45相关器件

型号	品牌	获取价格	描述	数据表
74AVCH1T45_09	NXP	获取价格	Dual supply translating transceiver; 3-state
74AVCH1T45DBVRE4	TI	获取价格	SINGLE-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION ND 3-STATE O
74AVCH1T45DBVRG4	TI	获取价格	SINGLE-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION ND 3-STATE O
74AVCH1T45DBVTE4	TI	获取价格	SINGLE-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION ND 3-STATE O
74AVCH1T45DBVTG4	TI	获取价格	SINGLE-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION ND 3-STATE O
74AVCH1T45DCKRE4	TI	获取价格	SINGLE-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION ND 3-STATE O
74AVCH1T45DCKRG4	TI	获取价格	SINGLE-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION ND 3-STATE O
74AVCH1T45DCKTE4	TI	获取价格	SINGLE-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION ND 3-STATE O
74AVCH1T45DCKTG4	TI	获取价格	SINGLE-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION ND 3-STATE O
74AVCH1T45GM	NXP	获取价格	Dual supply translating transceiver; 3-state

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