hef4541b NXP Semiconductors, hef4541b Datasheet

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hef4541b

Manufacturer Part Number
hef4541b
Description
Programmable Timer
Manufacturer
NXP Semiconductors
Datasheet
Product specification
File under Integrated Circuits, IC04
DATA SHEET
HEF4541B
MSI
Programmable timer
For a complete data sheet, please also download:
The IC04 LOCMOS HE4000B Logic
Family Specifications HEF, HEC
The IC04 LOCMOS HE4000B Logic
Package Outlines/Information HEF, HEC
INTEGRATED CIRCUITS
January 1995

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hef4541b Summary of contents

Page 1

... DATA SHEET For a complete data sheet, please also download: The IC04 LOCMOS HE4000B Logic Family Specifications HEF, HEC The IC04 LOCMOS HE4000B Logic Package Outlines/Information HEF, HEC HEF4541B MSI Programmable timer Product specification File under Integrated Circuits, IC04 INTEGRATED CIRCUITS ...

Page 2

... Philips Semiconductors Programmable timer DESCRIPTION The HEF4541B is a programmable timer which consists of a 16-stage binary counter, an integrated oscillator to be used with external timing components, an automatic power-on reset and output control logic. The frequency of the oscillator is determined by the external components R and C within the frequency range 100 kHz. This ...

Page 3

... Philips Semiconductors Programmable timer January 1995 Fig.3 Logic diagram. 3 Product specification HEF4541B MSI ...

Page 4

... DD The recommended values for these components to maintain agreement with the typical oscillation formula are: C 100 pF any typical value Product specification HEF4541B MODE MODE X auto reset disabled X auto reset enabled X master reset active H normal operation selected division to output ...

Page 5

... Philips Semiconductors Programmable timer C curve 120 curve nF Fig.5 RC oscillator frequency as a function of R January 1995 and Product specification HEF4541B MSI = 25 C. amb ...

Page 6

... Philips Semiconductors Programmable timer nF nF 120 Fig.6 Frequency deviation ( function of ambient temperature; referenced January 1995 osc 6 Product specification HEF4541B MSI and amb ...

Page 7

... osc osc osc HEF4541B MSI 85 230 A 700 A 1500 A V 0,3 mA 0,95 mA 3,2 mA 0,95 mA 0,20 mA 0,68 mA 2, 100 V DD 400 V DD ...

Page 8

... C 1150 ns 548 ns (0,55 ns/pF) C 420 ns 199 ns (0,23 ns/pF) C 300 ns 142 ns (0,16 ns/pF MHz MHz MHz kHz kHz kHz kHz kHz kHz R = 120 k S HEF4541B MSI ...

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