DATA SHEET
SNx4HC541 Octal Buffers and Line Drivers With 3-State Outputs
1 Features
- Wide Operating Voltage Range of 2 V to 6 V
- High-Current 3-State Outputs Drive Bus Lines Directly or Up to 15 LSTTL Loads
- Low Power Consumption, 80-µA Maximum ICC
- Typical tpd = 10 ns
- ±6-mA Output Drive at 5 V
- Low Input Current of 1 µA Maximum
- Data Flow-Through Pinout (All Inputs on Opposite Side From Outputs)
2 Applications
- LEDs
- Servers
- PCs and Notebooks
- Wearable Health and Wellness Devices
- Electronic Points of Sale
3 Description
These octal buffers and line drivers feature the performance of the SNx4HC541 devices and a pinout with inputs and outputs on opposite sides of the package. This arrangement greatly facilitates printed circuit board layout.
The 3-state outputs are controlled by a two-input NOR gate. If either output-enable (OE1 or OE2) input is high, all eight outputs are in the high-impedance state. The SNx4HC541 devices provide true data at the outputs.
Device
Information
| PART NUMBER | PACKAGE(1) | BODY SIZE (NOM) |
|---|---|---|
| SN74HC541DW | SOIC (20) | 12.80 mm × 7.50 mm |
| SN74HC541DB | SSOP (20) | 7.20 mm × 5.30 mm |
| SN74HC541N | PDIP (20) | 24.33 mm × 6.35 mm |
| SN74HC541NS | SO (20) | 12.60 mm × 5.30 mm |
| SN74HC541PW | TSSOP (20) | 6.50 mm × 4.40 mm |
| SN54HC541J | CDIP (20) | 24.20 mm × 6.92 mm |
| SN54HC541FK | LCCC (20) | 8.89 mm × 8.89 mm |
(1) For all available packages, see the orderable addendum at the end of the data sheet.
Functional Block Diagram4 Revision History
Changes from Revision D (September 2016) to Revision E (May 2022)
- Updated ESD ratings table to include modern TI terminologyGo
- Junction-to-ambient thermal resistance values increased. DB was 90.2 is now 122.7, DW was 77.5 is now 109.1, N was 45.2 is now 84.6, NS was 72.8 is now 113.4, PW was 98.3 is now 131.8Go
Changes from Revision C (August 2003) to Revision D (September 2016)
- Added Applications section, Thermal Information table, ESD Ratings table, Feature Description section, Device Functional Modes, Application and Implementation section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and Mechanical, Packaging, and Orderable Information section.Go
- Deleted Ordering Information table, see Mechanical, Packaging, and Orderable Information at the end of the datasheetGo
- Changed RθJA for DB package from 70°C/W: to 90.2°C/WGo
- Changed RθJA for DW package from 58°C/W: to 77.5°C/WGo
- Changed RθJA for N package from 69°C/W: to 45.2°C/WGo
- Changed RθJA for NS package from 60°C/W: to 72.8°C/WGo
- Changed RθJA for PW package from 83°C/W: to 98.3°C/WGo
