CAT5241WI10 datasheet(9/16 Pages) ONSEMI

Part #	CAT5241WI10

Description	Quad Digitally Programmable Potentiometer (DPP?? with 64 Taps and I짼C Interface

Download	16 Pages

Scroll/Zoom	100%

Manufacturer	ONSEMI [ON Semiconductor]

Direct Link	http://www.onsemi.com

Logo

9 / 16 page

CAT5241

9

Doc. No. MD-2011 Rev. R

Characteristics subject to change without notice

WIPER CONTROL AND DATA REGISTERS

Wiper Control Register (WCR)

The CAT5241 contains four 6-bit Wiper Control

Registers, one for each potentiometer. The Wiper

Control Register output is decoded to select one of 64

switches along its resistor array. The contents of the

WCR can be altered in four ways: it may be written by

the host via Write Wiper Control Register instruction; it

may be written by transferring the contents of one of

four associated Data Registers via the XFR Data

Register instruction, it can be modified one step at a

time by the Increment/decrement instruction (see

Instruction section for more details). Finally, it is

loaded with the content of its data register zero (DR0)

upon power-up.

The Wiper Control Register is a volatile register that

loses its contents when the CAT5241 is powered-

down. Although the register is automatically loaded

with the value in DR0 upon power-up, this may be

different from the value present at power-down.

Data Registers (DR)

Each potentiometer has four 6-bit non-volatile Data

Registers. These can be read or written directly by the

host. Data can also be transferred between any of the

four Data Registers and the associated Wiper Control

Register. Any data changes in one of the Data Regis–

ters is a non-volatile operation and will take a

maximum of 5ms.

If the application does not require storage of multiple

settings for the potentiometer, the Data Registers can

be used as standard memory locations for system

parameters or user preference data.

INSTRUCTIONS

Four of the nine instructions are three bytes in length.

These instructions are:

— Read Wiper Control Register – read the current

wiper position of the selected potentiometer in

the WCR

— Write Wiper Control Register – change current

wiper position in the WCR of the selected

potentiometer

— Read Data Register – read the contents of the

selected Data Register

— Write Data Register – write a new value to the

selected Data Register

The basic sequence of the three byte instructions is

illustrated in Figure 8. These three-byte instructions

Table 3. Instruction Set

Instruction Set

Instruction

I3

I2

I1

I0

WCR1

/ P1

WCR0

/ P0

R1

R0

Operations

Read Wiper Control

Register

1

0

1

1/0

0

Read the contents of the Wiper Control

Register pointed to by P1-P0

Write Wiper Control

Register

1

0

1

0

1/0

0

Write new value to the Wiper Control

Register pointed to by P1-P0

Read Data Register

1

0

1

1/0

1/0 1/0

Read the contents of the Data Register

pointed to by P1-P0 and R1-R0

Write Data Register

1

0

1/0

1/0 1/0

Write new value to the Data Register

pointed to by P1-P0 and R1-R0

XFR Data Register to

Wiper Control Register

1

0

1

1/0

1/0 1/0

Transfer the contents of the Data Register

pointed to by P1-P0 and R1-R0 to its

associated Wiper Control Register

XFR Wiper Control

Register to Data Register

1

0

1/0

1/0 1/0

Transfer the contents of the Wiper Control

Register pointed to by P1-P0 to the Data

Register pointed to by R1-R0

Global XFR Data Registers

to Wiper Control Registers

0

1

0

1/0 1/0

Transfer the contents of the Data Registers

pointed to by R1-R0 of all four pots to their

respective Wiper Control Registers

Global XFR Wiper Control

Registers to Data Register

1

0

1/0 1/0

Transfer the contents of both Wiper Control

Registers to their respective data Registers

pointed to by R1-R0 of all four pots

Increment/Decrement

Wiper Control Register

0

1

0

1/0

0

Enable Increment/decrement of the

Control Latch pointed to by P1-P0

Note: 1/0 = data is one or zero

Similar Part No. - CAT5241WI10

Manufacturer	Part #	Datasheet	Description
ON Semiconductor	CAT5241WI10	207Kb / 16P	Quad Digital Potentiometer (POT) July, 2013 ??Rev. 20

More results

Similar Description - CAT5241WI10

Manufacturer	Part #	Datasheet	Description
Catalyst Semiconductor	CAT5241	301Kb / 16P	Quad Digitally Programmable Potentiometer (DPP?? with 64 Taps and I짼C Interface
ON Semiconductor	CAT5409	252Kb / 16P	Quad Digitally Programmable Potentiometers (DPP?? with 64 Taps and I짼C Interface Doc. No. MD-2010 Rev. M
Catalyst Semiconductor	CAT5409	308Kb / 16P	Quad Digitally Programmable Potentiometers (DPP?? with 64 Taps and I짼C Interface
ON Semiconductor	CAT5241WI-25	218Kb / 16P	Quad Digitally Programmable Potentiometer with 64 Taps and I짼C Interface Doc. No. MD-2011 Rev. Q
ON Semiconductor	CAT5259	730Kb / 16P	Quad Digitally Programmable Potentiometers (DPP?? with 256 Taps and I짼C Interface Doc. No. MD-2000 Rev. J
Catalyst Semiconductor	CAT5259	283Kb / 16P	Quad Digitally Programmable Potentiometers (DPP?? with 256 Taps and I짼C Interface
Catalyst Semiconductor	CAT5221	304Kb / 16P	Dual Digitally Programmable Potentiometer (DPP?? with 64 Taps and I2C Interface
ON Semiconductor	CAT5409WI-25	234Kb / 16P	Quad Digitally Programmable Potentiometers with 64 Taps and I짼C Interface Doc. No. MD-2010 Rev. L
ON Semiconductor	CAT5221	249Kb / 16P	Dual Digitally Programmable Potentiometer (DPP?? with 64 Taps and I2C Interface Doc. No. MD-2113 Rev. M
Catalyst Semiconductor	CAT5251	279Kb / 15P	Quad Digitally Programmable Potentiometer (DPP?? with 256 Taps and SPI Interface

More results

CAT5241WI10 Datasheet(PDF) 9 Page - ON Semiconductor

CAT5241WI10 Datasheet(HTML) 9 Page - ON Semiconductor

Similar Part No. - CAT5241WI10

Similar Description - CAT5241WI10

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

Datasheet Download

Link URL