Datasheet > 74LVCH32245A

74LVCH32245A

更新时间： 2023-12-20 18:44:52

品牌	Logo	应用领域
瑞萨 - RENESAS		/
页数	文件大小	规格书
8页	303K
描述
3.3V CMOS 32-Bit Bus Transceiver with 3-State Outputs, 5.0V Tolerant I/O, and Bus-Hold

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74LVCH32245A 数据手册

74LVCH32245A

3.3VCMOS32-BITBUSTRANSCEIVERWITH3-STATEOUTPUTS

INDUSTRIALTEMPERATURERANGE

3.3V CMOS 32-BIT

74LVCH32245A

BUS TRANSCEIVER

WITH 3-STATE OUTPUTS,

5 VOLT TOLERANT I/O, BUS-HOLD

FEATURES:

DESCRIPTION:

• Typical tSK(o) (Output Skew) < 250ps

This 32-bit bus transceiver is built using advanced dual metal CMOS

technology. This high-speed, low power transceiver is ideal for asynchro-

nous communication between two busses (A and B). The Direction and

Output Enable controls are designed to operate the device as either four

independent 8-bit transceivers or one 32-bit transceiver. The direction

controlpins(DIR)controlthedirectionofdataflow. Theoutputenablepins

(OE) override the direction control and disable both ports. All inputs are

designed with hysteresis for improved noise margin.

• ESD > 2000V per MIL-STD-883, Method 3015; > 200V using

machine model (C = 200pF, R = 0)

• VCC = 3.3V ± 0.3V, Normal Range

• VCC = 2.7V to 3.6V, Extended Range

• CMOS power levels (0.4μ W typ. static)

• All inputs, outputs, and I/O are 5V tolerant

• Supports hot insertion

• Available in 96-ball LFBGA package

Allpinscanbedrivenfromeither3.3Vor5Vdevices. Thisfeatureallows

the use of this device as a translator in a mixed 3.3V/5V supply system.

The LVCH32245A has been designed with a ±24mA output driver. This

driver is capable of driving a moderate to heavy load while maintaining

speedperformance

The LVCH32245A has “bus-hold” which retains the inputs’ last state

whenevertheinputgoestoahighimpedance. Thispreventsfloatinginputs

and eliminates the need for pull-up/down resistors.

DRIVE FEATURES:

• Balanced Output Drivers: ±24mA

• Reduced system switching noise

APPLICATIONS:

• 5V and 3.3V mixed voltage systems

• Data communication and telecommunication systems

FUNCTIONALBLOCKDIAGRAM

1DIR

3DIR

1A1

3A1

1B1

TO SEVEN OTHER CHANNNELS

DIR

4DIR

4A1

4B1

TO SEVEN OTHER CHANNNELS

INDUSTRIAL TEMPERATURE RANGE

Apr.01.21

12 3 4 5 6 7 8

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