74AHC9541A
Octal buffer/line driver; 3-state
Rev. 1 — 28 June 2017 Product data sheet
1 General description
The 74AHC9541A is an 8-bit buffer/line driver with 3-state outputs and Schmitt trigger
inputs. The device features an output enable input (OE) and select input (S). A HIGH on
OE causes the associated outputs to assume a high-impedance OFF-state. A LOW on
the select input S causes the buffer/line driver to act as an inverter.
Inputs are overvoltage tolerant. This feature allows the use of these devices as
translators in mixed voltage environments.
The data (An), select (S) and output enable (OE) inputs include Schmitt trigger inputs,
capable of transforming slowly changing input signals into sharply defined, jitter-free
output signals.
This device is fully specified for partial Power-down applications using I
OFF
. The I
OFF
circuitry disables the output, preventing the damaging backflow current through the
device when it is powered down.
2 Features and benefits
• Wide supply voltage range from 1.8 V to 5.5 V
• Typical t
pd
of 5.1 ns at 5 V
• Typical V
OL(p)
< 0.8 V at V
CC
= 3.3 V, T
amb
= 25 °C
• Typical V
OH(v)
> 2.3 V at V
CC
= 3.3 V, T
amb
= 25 °C
• Supports mixed-mode voltage operation on all ports
• I
OFF
circuitry provides partial Power-down mode operation
• Latch-up performance exceeds 250 mA per JESD 78 Class II
• ESD protection:
– HBM ANSI/ESDA/JEDEC JS-001 Class 2 exceeds 3 kV
– MM JESD22-A115-A exceeds 150 V
– CDM JESD22-C101E exceeds 2 kV
• Specified from -40 °C to +85 °C and from -40 °C to +125 °C
3 Ordering information
Table 1. Ordering information
PackageType number
Temperature
range
Name Description Version
74AHC9541APW -40 °C to +125 °C TSSOP20 plastic thin shrink small outline package; 20 leads;
body width 4.4 mm
SOT360-1
