9.2 Typical Application

Seven Segment

SRCLR

g

f

a

b

DP

c

d

e

a

b

c

d

e

f

g

DP

GND

SER

SRCLK

RCLK

OE

SRCLR

GND

SER

SRCLK

RCLK

OE

Seven Segment

g

f

a

b

DP

c

d

e

a

b

c

d

e

f

g

DP

MCU

R2

C2

R1

C1

Figure 9-1. Typical application block diagram

9.2.1 Design Requirements

9.2.1.1 Power Considerations

Ensure the desired supply voltage is within the range specified in the Recommended Operating Conditions. The

supply voltage sets the device's electrical characteristics as described in the Electrical Characteristics.

The positive voltage supply must be capable of sourcing current equal to the total current to be sourced by all

any transient current required for switching. The logic device can only source as much current as is provided by

Maximum Ratings.

The ground must be capable of sinking current equal to the total current to be sunk by all outputs of the

current required for switching. The logic device can only sink as much current as can be sunk into its ground

connection. Be sure not to exceed the maximum total current through GND listed in the Absolute Maximum

Ratings.

The SN74HCS596 can drive a load with a total capacitance less than or equal to 50 pF while still meeting all of

the datasheet specifications. Larger capacitive loads can be applied, however it is not recommended to exceed

50 pF.

output voltage in the equation is defined as the difference between the measured output voltage and the supply

Total power consumption can be calculated using the information provided in CMOS Power Consumption and

Cpd Calculation.

SN74HCS596

SCLS840 – AUGUST 2020

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