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M74HC4024B1R-M74HC4024M1R-M74HC4024RM13TR
7 STAGE BINARY COUNTER
1/10July 2001 HIGH SPEED :
fMAX = 79 MHz (TYP.) at VCC = 6V LOW POWER DISSIPATION:
ICC =4μA(MAX.) at TA=25°C HIGH NOISE IMMUNITY:NIH = VNIL = 28 % VCC (MIN.) SYMMETRICAL OUTPUT IMPEDANCE:OH | = IOL = 4mA (MIN) BALANCED PROPAGATION DELAYS: PLH ≅ t PHL WIDE OPERATING VOLTAGE RANGE:
VCC (OPR) = 2V to 6V PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 4024
DESCRIPTIONThe M74HC4024 is an high speed CMOS 7
STAGE BINARY COUNTER fabricated with
silicon gate C2 MOS technology.
This devices is incremented on the falling edge
(negative transition) of the input clock, and all its
outputs are reset to a low level by applying a
logical high level on their reset input (CLEAR).
All inputs are equipped with protection circuits
against static discharge and transient excess
voltage.
M74HC40247 STAGE BINARY COUNTER
PIN CONNECTION AND IEC LOGIC SYMBOLS
ORDER CODES
M74HC40242/10
INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION
TRUTH TABLE
LOGIC DIAGRAM This logic diagram has not be used to estimate propagation delays
ABSOLUTE MAXIMUM RATINGS Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is
not implied
(*) 500mW at 65 °C; derate to 300mW by 10mW/°C from 65°C to 85°C
M74HC40243/10
RECOMMENDED OPERATING CONDITIONS
DC SPECIFICATIONS
M74HC40244/10
AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, Input tr = tf = 6ns)
CAPACITIVE CHARACTERISTICS 1) CPD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without
load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. ICC(opr) = CPD x VCC x fIN + ICC
M74HC40245/10
TEST CIRCUIT CL = 50pF or equivalent (includes jig and probe capacitance)
RT = ZOUT of pulse generator (typically 50Ω)
WAVEFORM 1 : MINIMUM PULSE WIDTH (CLEAR) AND REMOVAL TIME (f=1MHz; 50% duty cycle)
M74HC40246/10
WAVEFORM 2 : PROPAGATION DELAY TIME (f=1MHz; 50% duty cycle)
WAVEFORM 3 : MINIMUM PULSE WIDTH (CLOCK), PROPAGATION DELAY TIME (f=1MHz; 50% duty cycle)
