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部品型式

TC74HC4538AF

製品説明
仕様・特性

TC74HC4538AP/AF/AFT TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC74HC4538AP, TC74HC4538AF, TC74HC4538AFT Dual Retriggerable Monostable Multivibrator The TC74HC4538A is a high speed CMOS MONOSTABLE MULTIVIBRATOR fabricated with silicon gate C2MOS technology. It achieves the high speed operation similar to equivalent LSTTL while maintaining the CMOS low power dissipation. There are two trigger inputs, A input (positive edge input), and B input (negative edge input). These inputs are valid for a slow rise/fall time signal (tr = tf = 1 s) as they are schmitt trigger inputs. After triggering, the output stays in a MONOSTABLE state for the time period determined by the external resistor and capacitor (RX, CX). A low level at CD input breaks this STABLE STATE. In the MONOSTABLE state, if a new trigger is applied, it makes the MONOSTABLE period longer (retrigger mode). Limitations for CX and RX are as follows: External capacitor CX ........... No limitation External resistor RX .............. VCC = 2.0 V more than 5 kΩ VCC ≥ 3.0 V more than 1 kΩ All inputs are equipped with protection circuits against static discharge or transient excess voltage. TC74HC4538AP TC74HC4538AF TC74HC4538AFT Features (Note) • High speed: tpd = 25 ns (typ.) at VCC = 5 V • Low power dissipation Stand by state: ICC = 4 μA (max) at Ta = 25°C Active state: ICC = 300 μA (max) at Ta = 25°C • High noise immunity: VNIH = VNIL = 28% VCC (min) • Output drive capability: 10 LSTTL loads • • Symmetrical output impedance: |IOH| = IOL = 4 mA (min) Balanced propagation delays: tpLH ∼ tpHL − • Wide operating voltage range: VCC (opr) = 2 V to 6 V • Pin and function compatible with 4538B Weight DIP16-P-300-2.54A SOP16-P-300.1.27A TSSOP16-P-0044-0.65A : 1.00 g (typ.) : 0.18 (typ.) : 0.06 g (typ. Note: In the case of using only one circuit, CD should be tied to GND, T1·T2·Q· Q should be tied to OPEN, the other inputs should be tied to VCC or GND. Start of commercial production 1987-11 1 2014-03-01

ブランド

TOSHIBA

会社名

株式会社 東芝セミコンダクター&ストレージ社

本社国名

日本

事業概要

半導体部門、DRAM、フラッシュメモリ、プロセッサ、汎用LSI

供給状況

 
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型式 数量 D/C・lead 備考 選択
TC74HC4538AF 113個 8732 N/A

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