CD4033BMS datasheet(9/11 Pages) INTERSIL

9 / 11 page

7-834

CD4033BMS

FIGURE 10. TYPICAL MAXIMUM CLOCK INPUT FREQUENCY

AS A FUNCTION OF SUPPLY VOLTAGE

FIGURE 11. TYPICAL POWER DISSIPATION AS A FUNCTION

OF CLOCK INPUT FREQUENCY

Light Emitting Diode Displays

FIGURE 12. INTERFACING THE CD4033BMS WITH COMMERCIALLY

AVAILABLE LIGHT EMITTING DIODE DISPLAYS

Typical Performance Characteristics (Continued)

AMBIENT TEMPERATURE (TA) = +25

tr = tf = 20ns

SUPPLY VOLTAGE (VDD) (V)

110

102

103

104

105

INPUT PULSE FREQUENCY (fCL) (MHz)

105

104

103

102

AMBIENT TEMPERATURE (TA) = +25

SUPPLY VOLTAGE (VDD) = 5V

15V

10V

(CL) = 15pF

LOAD CAPACITANCE (CL) = 50pF

CD4033BMS

SEGMENTS

MAN 3

VDD

1/7 CA3082

OR EQUIVALENT

CLOCK

INHIBIT

RESET

MONSANTO MAN 3

OR EQUIVALENT

(LOW POWER)

VDD

≥ 3.5V

≈ 5mA/SEGMENT

100% DUTY CYCLE

VP - VBE - VF(LED)

ILED

WHERE VP = INPUT PULSE

VF = FORWARD DROP

ACROSS DIODE

VDD

VSS

R =

CD4033BMS

SEGMENTS

MAN 1

VDD

1/7 CA3082

OR EQUIVALENT

CLOCK

INHIBIT

RESET

MONSANTO MAN 1

OR EQUIVALENT

VDD 5V (MIN)

IB 0.4mA

IF 12mA/Seg.(100% DUTY CYCLE)

bdc(MIN) 30

ILED

WHERE VF = FORWARD DROP ACROSS DIODE

VCE(SAT) £ 0.5V

VDD - VCE(sat)-VF(LED)

VDD

VSS

R =

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