Datasheet4U Logo Datasheet4U.com

DM54LS469 - DM54LS469/DM74LS469 8-Bit Up/Down Counter

General Description

The ‘LS469 is an 8-bit synchronous up down counter with parallel load and hold capability Three function-select inputs (LD UD CBI) provide one of four operations which occur synchronously on the rising edge of the clock (CK) The LOAD operation loads the inputs (D7 D0) into the output regis

Key Features

  • Benefits Y Y Y Y Y Y Y 8-bit up down counter for microprogram-counter DMA controller and general-purpose counting.

📥 Download Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer
DM54LS47 BCD/7-Segment Decoder/Driver MSI
DM54LS48 BCD/7-Segment Decoder/Driver MSI
DM54LS49 BCD/7-Segment Decoder/Driver MSI
DM54L89A 64-BIT READ/WRITE MEMORIES ETC
DM54141 BCD / DECIMAL DECODERS / DRIVERS MSI

Other Datasheets by National Semiconductor (now Texas Instruments)

Part Number Description
DM54LS460 10-Bit Comparator
DM54LS461 Octal Counter
DM54LS42 BCD/Decimal Decoders
DM54LS447 BCD to 7-Segment Decoder/Driver
DM54LS450 16:1 Multiplexer

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
DM54LS469 DM74LS469 8-Bit Up Down Counter July 1989 DM54LS469 DM74LS469 8-Bit Up Down Counter General Description The ‘LS469 is an 8-bit synchronous up down counter with parallel load and hold capability Three function-select inputs (LD UD CBI) provide one of four operations which occur synchronously on the rising edge of the clock (CK) The LOAD operation loads the inputs (D7 – D0) into the output register (Q7 – Q0) The HOLD operation holds the previous value regardless of clock transitions The INCREMENT operation adds one to the output register when the carry-in input is TRUE (CBI e LOW) otherwise the operation is a HOLD The carry-out (CBO) is TRUE (CBO e LOW) when the output register (Q7 – Q0) is all HIGHs otherwise FALSE (CBO e HIGH) The DECREMENT operation subtracts one from the outp