HCF4516| Datasheet

HCF4516, HCF4516BEY

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HCF4516B
PRESETTABLE BINARY UP/DOWN COUNTER
s

s s

s s s

s s

MEDIUM SPEED OPERATION : 8 MHz (Typ.) at 10V SYNCHRONOUS INTERNAL CARRY PROPAGATION RESET AND PRESET CAPABILITY STANDARDIZED SYMMETRICAL OUTPUT CHARACTERISTICS QUIESCENT CURRENT SPECIF. UP TO 20V 5V, 10V AND 15V PARAMETRIC RATINGS INPUT LEAKAGE CURRENT II = 100nA (MAX) AT VDD = 18V TA = 25 C 100% TESTED FOR QUIESCENT CURRENT MEETS ALL REQUIREMENTS OF JEDEC JESD13B "STANDARD SPECIFICATIONS FOR DESCRIPTION OF B SERIES CMOS DEVICES"

DIP

ORDER CODES
PACKAGE DIP TUBE HCF4516BEY T&R

DESCRIPTION HCF4516B is a monolithic integrated circuit fabricated in Metal Oxide Semiconductor technology available in DIP package. It is a PRESETTABLE BINARY UP/DOWN COUNTER, consists of four synchronously clocked D-type flip-flops (with a gating structure to provide T-type flip-flop capability) connected as a counter. This counter can be cleared by a high level on the RESET line, and can be preset to any binary number present on the jam inputs by a high

level on the PRESET ENABLE line. Synchronous cascading is accomplished by connecting all clock inputs in parallel and connecting the CARRY OUT of a less significant stage to the CARRY IN of a more significant stage. HCF4516B can be cascaded in the ripple mode by connecting all clock inputs in parallel and connecting the CARRY OUT to the clock of the next stage. If the UP/ DOWN input changes during a terminal count, the CARRY OUT must be gated with the clock, and the UP/DOWN input must change while the clock is high. This method provides a clean clock signal to the subsequent counting stage.

PIN CONNECTION

September 2002

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