MAX1492 Datasheet, PDF(25/35 Page) Maxim Integrated Products – 3.5- and 4.5-Digit, Single-Chip ADCs with LCD Drivers

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MAX1492 Datasheet, PDF (25/35 Pages) Maxim Integrated Products – 3.5- and 4.5-Digit, Single-Chip ADCs with LCD Drivers

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DP1:

E1:

F1:

D1:

G1:

A1:

C1:

B1:

3.5- and 4.5-Digit, Single-Chip ADCs

with LCD Drivers

Segment DP Driver Bit of Digit 1. The

default value turns on the LCD segment.

Segment e Driver Bit of Digit 1. The

default value turns on the LCD segment.

Segment f Driver Bit of Digit 1. The

default value turns on the LCD segment.

Segment d Driver Bit of Digit 1. The

default value turns on the LCD segment.

Segment g Driver Bit of Digit 1. The

default value turns on the LCD segment.

Segment a Driver Bit of Digit 1. The

default value turns on the LCD segment.

Segment c Driver Bit of Digit 1. The

default value turns on the LCD segment.

Segment b Driver Bit of Digit 1. The

default value turns on the LCD segment.

ANN:

DP2:

E2:

F2:

D2:

G2:

A2:

Custom Annunciator. The default value

turns on the LCD segment.

Segment DP Driver Bit of Digit 2. The

default value turns on the LCD segment.

Segment e Driver Bit of Digit 2. The

default value turns on the LCD segment.

Segment f Driver Bit of Digit 2. The

default value turns on the LCD segment.

Segment d Driver Bit of Digit 2. The

default value turns on the LCD segment.

Segment g Driver Bit of Digit 2. The

default value turns on the LCD segment.

Segment a Driver Bit of Digit 2. The

default value turns on the LCD segment.

LCD Segment-Display Register 2 (Read/Write):

MSB

E4 DP4 MINUS B3 C3 A3 G3

Default values: 0000h

The LCD segment-display register 2 is a 16-bit

read/write register. When the SEG-SEL bit (in the con-

trol register) is set to 1, the MAX1492/MAX1494 provide

direct access to individual LCD segments. The bits in

LSB

DP3

LOW

BATT

the LCD segment-display register determine if a seg-

ment is on or off. Write a 0 to this register to turn on a

segment and a 1 to turn off a segment.

C2:

B2:

LOWBATT:

DP3:

E3:

F3:

D3:

G3:

Segment c Driver Bit of Digit 2. The

default value turns on the LCD segment.

Segment b Driver Bit of Digit 2. The

default value turns on the LCD segment.

LOWBATT Driver Bit. The default value

turns on the LOWBATT annunciator.

Segment DP Driver Bit of Digit 3. The

default value turns on the LCD segment.

Segment e Driver Bit of Digit 3. The

default value turns on the LCD segment.

Segment f Driver Bit of Digit 3. The

default value turns on the LCD segment.

Segment d Driver Bit of Digit 3. The

default value turns on the LCD segment.

Segment g Driver Bit of Digit 3. The

default value turns on the LCD segment.

A3:

C3:

B3:

MINUS:

DP4:

E4:

F4:

Segment a Driver Bit of Digit 3. The

default value turns on the LCD segment.

Segment c Driver Bit of Digit 3. The

default value turns on the LCD segment.

Segment b Driver Bit of Digit 3. The

default value turns on the LCD segment.

Minus-Sign Driver Bit. The default value

turns on the LCD segment.

Segment DP Driver Bit of Digit 4. The

default value turns on the LCD segment

(MAX1494 only).

Segment e Driver Bit of Digit 4. The

default value turns on the LCD segment

(MAX1494 only).

Segment f Driver Bit of Digit 4. The

default value turns on the LCD segment

(MAX1494 only).

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