DatasheetsPDF.com

68HC68W1

Part Number	68HC68W1
Manufacturer	Intersil Corporation
Description	CMOS Serial Digital Pulse Width Modulator
Published	Apr 3, 2005
Detailed Description	CDP68HC68W1 March 1998 CMOS Serial Digital Pulse Width Modulator Description The CDP68HC68W1 modulates a clock input to...
Datasheet	68HC68W1 PDF File

Overview

CDP68HC68W1 March 1998 CMOS Serial Digital Pulse Width Modulator Description The CDP68HC68W1 modulates a clock input to supply a variable frequency and duty-cycle output signal.
Three 8-bit registers (pulse width, frequency and control) are accessed serially after power is applied to initialize device operation.
The value in the pulse width register selects the high duration of the output period.
The frequency register byte divides the clock input frequency and determines the overall output clock period.
The input clock can be further divided by two or a low power mode may be selected by the lower two bits in the control register.
A comparator circuit allows threshold control by setting the output low if the input at the VT pin rises above 0.
75V.
The CDP68HC68W1 is supplied in an 8 lead PDIP package (E sufﬁx).
Features • Programmable Frequency and Duty Cycle Output • Serial Bus Input; Compatible with Motorola/Intersil SPI Bus, Simple Shift-Register Type Interface • 8 Lead PDIP Package • Schmitt Trigger Clock Input • 4V to 6V Operation, -40oC to 85oC Temperature Range • 8MHz Clock Input Frequency Pinout CDP68HC68W1 (PDIP) TOP VIEW CLK CS VT VSS 1 2 3 4 8 7 6 5 VDD PWM SCK DATA Ordering Information PART NUMBER CDP68HC68W1E TEMP.
RANGE (oC) -40 to 85 PACKAGE 8 Ld PDIP PKG.
NO.
E8.
3 Block Diagram CLK INPUT CLK MODULATOR LOGIC PWM 8 - STAGE RIPPLE COUNTER 8 - STAGE RIPPLE COUNTER RESET PULSE - WIDTH DATA REGISTER LOAD FREQUENCY DATA REGISTER LOAD DATA 8 - STAGE SHIFT REGISTER 8 - STAGE SHIFT REGISTER CONTROL REGISTER 2 - STAGE SHIFT LOAD VT VT COMPARATOR SCK 8 16 24 5 - STAGE 24 - STATE COMPARATOR CS CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
http://www.
intersil.
com or 407-727-9207 | Copyright © Intersil Corporation 1999 File Number 1919.
3 1 CDP68HC68W1 Absolute Maximum Ratings DC Supply Voltage Range, (VDD) .
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
-0.
5V to +7V (Voltage Referenced to VSS Terminal) In...

Similar Datasheet

68HC68W1 CMOS Serial Digital Pulse Width Modulator - Intersil Corporation

@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site. (Privacy Policy & Contact)