4-Wire Interfaced, 2.7V to 5.5V LED Display

Driver with I/O Expander and Key Scan

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33

CONFIGURATION

CHOICE

Common-Cathode

Drive: Digit Type

00

a1

a1

1a

a1

a1

1a

a

a

a1

1a

a

01

a2

a2

—

a2

a2

——

—

a2

——

02

b

b

1b

b

b

1b

b

b

b

1b

b

03

c

c

1c

c

c

1c

c

c

c

1c

c

04

CC4

—

CC4

CC4

CC4

CC4

—

CC4

——

CC4

05

—

CC5

CC5

CC5

——

CC5

—

CC5

CC5

CC5

06

d1

d1

1d

d1

d1

1d

d

d

d1

1d

d

07

d2

d2

1dp

d2

d2

1dp

——

d2

1dp

—

08

e

e

1e

e

e

1e

e

e

e

1e

e

09

f

f

1f

f

f

1f

f

f

f

1f

f

010

g1

g1

1g

g1

g1

1g

g1

g1

g1

1g

g1

011

g2

g2

2a

g2

g2

2a

g2

g2

g2

2a

g2

012

h

h

2b

h

h

2b

h

h

h

2b

h

013

i

i

2c

i

i

2c

i

i

i

2c

i

014

j

j

2d

j

j

2d

j

j

j

2d

k

015

k

k

2e

k

k

2e

k

k

k

2e

l

016

l

l

2f

l

l

2f

l

l

l

2f

l

017

m

m

2g

m

m

2g

m

m

m

2g

m

018

dp

dp

2dp

dp

dp

2dp

dp

dp

dp

2dp

dp

ADDRESS

CODE (HEX)

0x0C

D7

D6

See Table 40.

D5

01

0

1

D4

0

0

1

1

D3

D2

See Table 38.

D1

D0

See Table 37.

Table 39. Slot 3 Configuration

*7-segment digits can be replaced by directly controlled discrete LEDs according to settings in decode mode register (Table 11).

**The highlighted row is used in Typical Operating Circuit 1 for display digits 4 and 5.