DataSheetWiki


CDP68HC68W1 fiches techniques PDF

Intersil Corporation - CMOS Serial Digital Pulse Width Modulator

Numéro de référence CDP68HC68W1
Description CMOS Serial Digital Pulse Width Modulator
Fabricant Intersil Corporation 
Logo Intersil Corporation 





1 Page

No Preview Available !





CDP68HC68W1 fiche technique
CDP68HC68W1
March 1998
CMOS Serial Digital Pulse Width Modulator
Features
Description
• 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 1
CS 2
8 VDD
7 PWM
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).
Ordering Information
TEMP. RANGE
PART NUMBER
(oC)
PACKAGE
PKG.
NO.
VT 3
VSS 4
6 SCK
5 DATA
CDP68HC68W1E
-40 to 85
8 Ld PDIP
E8.3
Block Diagram
CLK
8 - STAGE RIPPLE
COUNTER
INPUT CLK
MODULATOR
LOGIC
PULSE - WIDTH
DATA REGISTER
RESET
LOAD
PWM
8 - STAGE RIPPLE
COUNTER
FREQUENCY
LOAD
DATA REGISTER
DATA
VT
8 - STAGE SHIFT
REGISTER
VT
COMPARATOR
SCK
8 - STAGE SHIFT
REGISTER
CONTROL REGISTER
2 - STAGE SHIFT
LOAD
8 16
5 - STAGE 24 - STATE
COMPARATOR
24
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
1
File Number 1919.3

PagesPages 9
Télécharger [ CDP68HC68W1 ]


Fiche technique recommandé

No Description détaillée Fabricant
CDP68HC68W1 CMOS Serial Digital Pulse Width Modulator Intersil Corporation
Intersil Corporation
CDP68HC68W1E CMOS Serial Digital Pulse Width Modulator Intersil Corporation
Intersil Corporation

US18650VTC5A

Lithium-Ion Battery

Sony
Sony
TSPC106

PCI Bus Bridge Memory Controller

ATMEL
ATMEL
TP9380

NPN SILICON RF POWER TRANSISTOR

Advanced Semiconductor
Advanced Semiconductor


www.DataSheetWiki.com    |   2020   |   Contactez-nous  |   Recherche