MC14538BDTR2G

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MC14538BDTR2G

IC MULTIVIBRATOR 95NS 16TSSOP

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規格

Supplier onsemi
Package Tape & Reel (TR),Cut Tape (CT)
Series 4000B
ProductStatus Active
LogicType Monostable
IndependentCircuits 2
SchmittTriggerInput Yes
PropagationDelay 95 ns
Current-OutputHighLow 8.8mA, 8.8mA
Voltage-Supply 3 V ~ 18 V
OperatingTemperature -55°C ~ 125°C
MountingType Surface Mount
Package/Case 16-TSSOP (0.173, 4.40mm Width)

概述

Description

MC14538BDTR2G is a Motorola/On Semiconductor 3-to-8 line decoder/demultiplexer. It decodes three binary inputs into eight mutually exclusive outputs (Y0–Y7). It has enable inputs; when enabled, exactly one output goes low for a given input code, and when disabled all outputs go high. Outputs are typically active-low, which simplifies wiring with other logic. The device comes in a 16-pin package (BDTR2G variant) and is designed for single-supply use with TTL/CMOS-compatible inputs. Common applications include address decoding, memory chip-select generation, display digit selection, and general digital demultiplexing. For exact pinout, voltage ranges, and timing specifications, refer to the official datasheet for the BDTR2G package.

Features

MC14538BDTR2G features (highlights):
- 4-bit binary up/down counter
- Separate UP and DOWN counting inputs
- Parallel-load capability (D0–D3 with LOAD control)
- Asynchronous Master Reset (clear)
- Ripple carry/borrow outputs for cascading counters
- Outputs Q0–Q3
- Low-power CMOS technology; wide supply range 3 V to 18 V
- TTL/CMOS-compatible inputs
- 16-pin package (BDTR2G, RoHS/compliant)
Note: For exact electrical characteristics and pinout, refer to the datasheet.

Package

Plastic DIP (DIP-14) package; through-hole 14-pin device.

Pinout

- Pin count: 24 pins (MC14538BDTR2G in its standard package).
- Function: 4-to-16 line decoder/demultiplexer with two enable inputs; decodes a 4-bit binary input into one of 16 mutually exclusive outputs (outputs typically active-low).

Manufacturer

Manufacturer: NXP Semiconductors (the successor to Motorola’s semiconductor division; MC14538 originally from Motorola).
What kind of company: NXP is a Dutch multinational semiconductor company that designs and manufactures integrated circuits and electronics components for automotive, industrial, and consumer markets.

Application

MC14538BDTR2G is a 4-bit binary up/down counter with asynchronous clear and load. Applications:
- Frequency division and programmable counters for timers and digital clocks
- Event/pulse counting in measurement and control systems (tachometers, counters)
- Sequencing and state-machine logic in digital systems
- General-purpose counting in microprocessor interfaces requiring bidirectional counting and reset/load options

Equivalent

MC14538BDTR2G is a dual precision monostable (4538 family). Common equivalents:
- CD4538B / CD4538BE (RCA/NXP)
- HCF4538B (STMicro)
- HEF4538B (Nexperia/Philips)
- TC14538 (Toshiba)
All share the same functionality/pinout; check timing/specs and supply-voltage ranges for exact interchangeability.

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