Key facts
- Brand
- Texas Instruments
- Model
- CD74HC259
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-04-11
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TEXAS INSTRUMENTS CD54/74HC259/CD54/74HCT259 High Speed CMOS Logic 8-Bit Addressable Latch handbook
The CD54/74HC259 and CD54/74HCT259 are high‑speed CMOS 8‑bit addressable latch devices offering buffered inputs and outputs, four operating modes, and low power consumption. The datasheet provides detailed information on features, pin configurations, electrical characteristics, and recommended test circuits.
Key sections include Features, Description, Ordering Information, Pinout diagrams, Absolute Maximum Ratings, DC Electrical Specifications, Switching Specifications, and Test Waveforms. An Important Notice at the end outlines TI's warranty and liability statements.
Texas Instruments CD74HC259 specifications
| Typical Propagation Delay | 15 ns |
|---|---|
| Fanout – Standard Outputs | 10 LSTTL Loads |
| Fanout – Bus Driver Outputs | 15 LSTTL Loads |
| Operating Temperature Range | -55°C to 125°C |
| Supply Voltage – HC Types | 2 V to 6 V |
| Supply Voltage – HCT Types | 4.5 V to 5.5 V |
| High Level Input Voltage (VIH) – HC | 2.0 V (typical) |
Source: TEXAS INSTRUMENTS CD54/74HC259/CD54/74HCT259 High Speed CMOS Logic 8-Bit Addressable Latch handbook
All Texas Instruments CD74HC259 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the typical propagation delay of the latch?
The typical propagation delay is 15 ns at Vcc = 5 V, CL = 15 pF, and 25 °C.
From: TEXAS INSTRUMENTS CD54/74HC259/CD54/74HCT259 High Speed CMOS Logic 8-Bit Addressable Latch handbook
How many LSTTL loads can the standard outputs drive?
Standard outputs can drive up to 10 LSTTL loads.
From: TEXAS INSTRUMENTS CD54/74HC259/CD54/74HCT259 High Speed CMOS Logic 8-Bit Addressable Latch handbook
What operating modes does the CD54HC259 addressable latch support?
The device provides three active modes—addressable latch, demultiplexer, and memory—and one reset mode where all outputs are forced low.
How should the CD54HC259 family be handled to avoid damage?
These devices are sensitive to electrostatic discharge, so users should follow proper IC handling procedures.