MCP4162T-502I/SL View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

MCP4162T-502I/SL

7/8-Bit Single/Dual SPI Digital POT with Volatile Memory

Microchip Technology 

MCP413X/415X/423X/425X

7.4 Continuous Commands

The device supports the ability to execute commands

continuously. While the CS pin is in the active state

(VIL or VIHH). Any sequence of valid commands may be

received.

The following example is a valid sequence of events:

1. CS pin driven active (VIL or VIHH).

2. Read Command.

3. Increment Command (Wiper 0).

4. Increment Command (Wiper 0).

5. Decrement Command (Wiper 1).

6. Write Command.

7. Write Command.

8. CS pin driven inactive (VIH).

Note 1: It is recommended that while the CS pin is

active, only one type of command should

be issued. When changing commands, it

is recommended to take the CS pin

inactive then force it back to the active

state.

2: It is also recommended that long

command strings should be broken down

into shorter command strings. This

reduces the probability of noise on the

SCK pin corrupting the desired SPI

command string.

TABLE 7-3: COMMANDS

Command Name

Write Data

Read Data

Increment Wiper

Decrement Wiper

High Voltage Write Data

High Voltage Read Data

High Voltage Increment Wiper

High Voltage Decrement Wiper

# of Bits

16-Bits

16-Bits

8-Bits

8-Bits

16-Bits

16-Bits

8-Bits

8-Bits

High Voltage

(VIHH) on CS

pin?

—

—

—

—

Yes

Yes

Yes

Yes

DS22060B-page 50

© 2008 Microchip Technology Inc.

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