MC14534BCP ,5 Cascaded BCD CountersELECTRICAL CHARACTERISTICS (Voltages Referenced to V )SSÎÎÎÎÎΖ 55* C 25* C 125* CV VD DD DVdc VdcC ..
MC14536B ,Programmable Timerhttp://onsemi.com3MC14536BÎÎÎÎÎ SWITCHING CHARACTERISTICS (Note 7.) (C = 50 pF, T = 25C)L AÎÎÎÎÎ C ..
mc14536B ,Programmable TimerMAXIMUM RATINGS (Voltages Referenced to V ) (Note 2.)SSSymbol Parameter Value UnitA = Assembly Loca ..
MC14536BCL ,Programmable Timer**SEMICONDUCTOR TECHNICAL DATA ** **L SUFFIXThe MC14536B programmable timer is a 24–stage binary ri ..
MC14536BCL ,Programmable Timer**SEMICONDUCTOR TECHNICAL DATA ** **L SUFFIXThe MC14536B programmable timer is a 24–stage binary ri ..
MC14536BCL ,Programmable TimerMaximum Ratings are those values beyond which damage to the device may occur.†Temperature Derating: ..
MC68HC908QY4CDT ,High-performance M68HC08 family of 8-bit microcontroller units (MCUs), (CISC) with a von neumann architecture, FLASH memory 4096 bytes, ADC
MC68HC908QY4CDTE , M68HC08 Microcontrollers
MC68HC908QY4CP ,High-performance M68HC08 family of 8-bit microcontroller units (MCUs), (CISC) with a von neumann architecture, FLASH memory 4096 bytes, ADC
MC68HC908QY4CP ,High-performance M68HC08 family of 8-bit microcontroller units (MCUs), (CISC) with a von neumann architecture, FLASH memory 4096 bytes, ADC
MC68HC908QY4CPE , M68HC08Microcontrollers
MC68HC908RF2CFA ,HCMOS Microcontroller UnitMC68HC908RF2/DREV 1MC68HC908RF2Advance InformationHCMOS Microcontroller UnitM68HC08M68HC08M68HC08M6 ..
MC14534BCL-MC14534BCP
5 Cascaded BCD Counters
-The MC14534B is composed of five BCD ripple counters that have their
respective outputs multiplexed using an internal scanner. Outputs of each
counter are selected by the scanner and appear on four (BCD) pins.
Selection is indicated by a logic high on the appropriate digit select pin. Both
BCD and digit select outputs have three–state controls providing an
“open–circuit” when these controls are high and allowing multiplexing.
Cascading may be accomplished by using the carry–out pin. The counters
and scanner can be independently reset by applying a high to the counter
master reset (MR) and the scanner reset (SR). The MC14534B was
specifically designed for application in real time or event counters where
continual updating and multiplexed displays are used. Four Operating Modes (See truth table) Input Error Detection Circuit Clock Conditioning Circuits for Slow Transition Inputs Counter Sequences on Positive Transition of Clock A Supply Voltage Range = 3.0 Vdc to 18 Vdc Capable of Driving Two Low–power TTL Loads or One Low–power
Schottky TTL Load Over the Rated Temperature Range
BLOCK DIAGRAM 8 14 16 11
CLOCK B
CLOCK A
MASTER
RESET
MODE A
MODE B
SCANNER
RESET
SCANNER
CLOCK
ERROR OUT
CONTROL
CARRY OUT
DS1 DS2 DS3 DS4 DS5
DIGIT SELECT3–STATE
OUTPUT BUFFER
NOTE:
BCD
OUT
VDD = PIN 24
VSS = PIN 12
TO CAPACITORS
SEMICONDUCTOR TECHNICAL DATA
