philips 74HC245 74HCT245 Octal bus tranceiver 3-state handbook

The 74HC245; 74HCT245 is a high-speed Si-gate CMOS device and is pin compatible with Low-Power Schottky TTL (LSTTL). The 74HC245; 74HCT245 is an octal transceiver featuring non-inverting 3-state bus compatible outputs in both send and receive directions. The 74HC245; 74HCT245 features an output enable input (OE) for easy cascading and a send/receive input (DIR) for direction control. OE controls the outputs so that the buses are effectively isolated. The 74HC245; 74HCT245 is similar to the 74HC640; 74HCT640 but has true (non-inverting) outputs.


philips 74HC245 74HCT245 Octal bus tranceiver 3-state handbook - cover page
Brand
Philips
Category
Other Electronics
Document type
Datasheet
Language
English
Pages
22
File format
PDF
File size
118 KB
Published
02 July, 2012
Updated
01 October, 2023
Model
HCT245
MD5 checksum
557EACF37EF7FAE8E0675B4BC2B05CD7

About this manual

The 74HC245 and 74HCT245 are high-speed Si-gate CMOS devices that are pin compatible with Low-Power Schottky TTL (LSTTL). These octal transceivers feature non-inverting 3-state bus compatible outputs in both send and receive directions, making them suitable for bidirectional data transfer applications. The devices include an output enable input (OE) for cascading and a send/receive input (DIR) for direction control.

What's inside

  • General description
  • Features
  • Quick reference data
  • Ordering information
  • Functional diagram
  • Pinning information
  • Functional description
  • Limiting values
  • Recommended operating conditions
  • Static characteristics

Specifications

Input capacitance3.5 pF
Input/Output capacitance10 pF
Supply voltage range2.0 V to 6.0 V (74HC245)
Supply voltage range4.5 V to 5.5 V (74HCT245)
Operating temperature range-40°C to +125°C

Frequently asked questions

Are the outputs of these transceivers inverting?

No, the 74HC245 and 74HCT245 feature non-inverting 3-state outputs.

What is the function of the OE pin?

The OE (Output Enable) input controls the outputs so that the buses are effectively isolated.

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