SN74AHC541-Q1 Octal Buffer/Driver with 3-State Outputs
1 Features
- Qualified for automotive applications
- Operating range of 2V to 5.5V V CC
- Latch-up performance exceeds 250mA per JESD 17
3 Description
The SN74AHC541 octal buffer/driver is
ideal for driving bus lines or buffer memory address registers. This device features
inputs and outputs on opposite sides of the package to facilitate printed circuit board
layout.
Logic Diagram (Positive Logic)
Package Information
| PART NUMBER | PACKAGE(1) | PACKAGE SIZE(2) | BODY SIZE(3) |
|---|---|---|---|
| SN74AHC541-Q1 | PW (TSSOP, 20) | 6.5mm × 6.4mm | 6.5mm × 4.4mm |
(1) For more information, see Section 11.
(2) The package size (length × width)
is a nominal value and includes pins, where applicable.
(3) The body size (length × width) is
a nominal value and does not include pins.
Logic Diagram (Positive Logic)4 Pin Configuration and Functions
Figure 4-1 D or PW Package (Top
View)Table 4-1 Pin Functions
| PIN | I/O | DESCRIPTION | |
|---|---|---|---|
| NAME | NO. | ||
| OE1 | 1 | I | Output Enable 1 |
| A1 | 2 | I | A1 Input |
| A2 | 3 | I | A2 Input |
| A3 | 4 | I | A3 Input |
| A4 | 5 | I | A4 Input |
| A5 | 6 | I | A5 Input |
| A6 | 7 | I | A6 Input |
| A7 | 8 | I | A7 Input |
| A8 | 9 | I | A8 Input |
| GND | 10 | — | Ground |
| Y8 | 11 | O | Y8 Output |
| Y7 | 12 | O | Y7 Output |
| Y6 | 13 | O | Y6 Output |
| Y5 | 14 | O | Y5 Output |
| Y4 | 15 | O | Y4 Output |
| Y3 | 16 | O | Y3 Output |
| Y2 | 17 | O | Y2 Output |
| Y1 | 18 | O | Y1 Output |
| OE2 | 19 | I | Output Enable 2 |
| VCC | 20 | — | Power Pin |
5 Specifications
5.1 Absolute Maximum Ratings
over operating free-air temperature range (unless
otherwise noted)(1)
| MIN | MAX | UNIT | ||
|---|---|---|---|---|
| VCC | Supply voltage range | −0.5 | 7 | V |
| VI (2) | Input voltage range | −0.5 | 7 | V |
| VO (2) | Output voltage range | −0.5 | VCC + 0.5 | V |
| IIK (VI < 0) | Input clamp current | −20 | mA | |
| IOK (VO < 0 or VO > VCC) | Output clamp current | ±20 | mA | |
| IO (VO = 0 to VCC) | Continuous output current | ±25 | mA | |
| Continuous current through VCC or GND | ±75 | mA | ||
| Tstg | Storage temperature range | −65 | 150 | °C |
(1) Stresses beyond those listed
under “absolute maximum ratings” may cause permanent damage to the device. These
are stress ratings only, and functional operation of the device at these or any
other conditions beyond those indicated under “recommended operating conditions”
is not implied. Exposure to absolute-maximum-rated conditions for extended
periods may affect device reliability.
(2) The input and output voltage
ratings may be exceeded if the input and output current ratings are
observed.
