8-bit Addressable Latch - Nxp SemiconductorsThe 74AHC/AHCT259 are high-speed Si-gate CMOS
devices and are pin compatible with Low power Schottky
TTL (LSTTL). They are specified in compliance with
JEDEC standard No. 7A.
The 74AHC/AHCT259 are high-speed 8-bit addressable
Latches designed for general purpose storage applications
in digital systems. The 259 are multifunctional devices
capable of storing single-line data in eight addressable
Latches and also 3-to-8 decoder and demultiplexer, with
active HIGH outputs (Q0 to Q7), functions are available.
The 259 also incorporates an active LOW common reset
(MR) for resetting all Latches as well as an active LOW
enable input (LE).
The 259 has four modes of operation as shown in the
mode select table. In the addressable latch mode, data on
the data line (D) is written into the addressed latch. The
addressed latch will follow the data input with all non-
addressed Latches remaining in their previous states.
In the memory mode, all Latches remain in their previous
states and are unaffected by the data or address inputs. By NXP Semiconductors
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74AHCT259 Pb-Free | 74AHCT259 Cross Reference | 74AHCT259 Schematic | 74AHCT259 Distributor |
74AHCT259 Application Notes | 74AHCT259 RoHS | 74AHCT259 Circuits | 74AHCT259 footprint |