MAX550A データシートの表示（PDF） - Maxim Integrated

部品番号

コンポーネント説明

メーカー

MAX550A

+2.5V to +5.5V, Low-Power, Single/Dual, 8-Bit Voltage-Output DACs in µMAX Package

Maxim Integrated 

+2.5V to +5.5V, Low-Power, Single/Dual,

8-Bit Voltage-Output DACs in µMAX Package

Table 2. MAX548A Serial-Interface Programming Commands (continued)

COMMANDS FOR POWERING DOWN

CONTROL BYTE

Loaded First

UB1 UB2 UB3 C2 C1 C0 A1 A0

DATA BYTE

Loaded Last

D7........D0

LDAC

Pin 6

COMMAND

(Commands executed on CS’s rising edge)

COMMANDS POWERING DOWN AND LOADING INPUT REGISTER(S) ONLY

X

X

X 1 0 X 0 1 8-Bit DAC Data X

Load DAC A input register and power down DAC

A. DAC B registers unchanged.

X

X

X 1 0 X 1 0 8-Bit DAC Data X

Load DAC B input register and power down DAC

B. DAC A registers unchanged.

X

X

X 1 0 X 1 1 8-Bit DAC Data X

Load both DAC input registers and power down

both DACs. Both DAC registers unchanged

COMMANDS POWERING DOWN AND UPDATING DAC REGISTER(S)

Load DAC A input register, power down DAC A,

X

X

X 1 1 0 0 1 8-Bit DAC Data X

and update both DAC registers. DAC B input

register unchanged.

Load DAC B input register, power down DAC B,

X

X

X 1 1 0 1 0 8-Bit DAC Data X

and update both DAC registers. DAC A input

register unchanged.

X

X

X 1 1 0 1 1 8-Bit DAC Data X

Load both DAC input registers, power down both

DACs, and update both DAC registers.

Load DAC A input register, power down

X

X

X 1 1 1 0 1 8-Bit DAC Data 0

DAC A, and update both DAC registers. DAC B

input register unchanged.

Load DAC B input register, power down

X

X

X 1 1 1 1 0 8-Bit DAC Data 0

DAC B, and update both DAC registers. DAC A

input register unchanged.

X

X

X 1 1 1 1 1 8-Bit DAC Data 0

Load both DAC input registers and power down

both DACs. Update both DAC registers.

COMMANDS POWERING DOWN AND UTILIZING THE ASYNCHRONOUS LOAD FUNCTION

Load DAC A input register and power down DAC

X

X

X 1 1 1 0 1 8-Bit DAC Data 1

A. While powered down, on LDAC’s falling edge,

update both DAC registers. DAC B input register

unchanged.

Load DAC B input register and power down DAC

X

X

X 1 1 1 1 0 8-Bit DAC Data 1

B. While powered down, on LDAC’s falling edge,

update both DAC registers. DAC A input register

unchanged.

Load both DAC input registers and power down

X

X

X 1 1 1 1 1 8-Bit DAC Data 1

both DACs. While powered down, on LDAC’s

falling edge, update both DAC registers.

X = Don’t care

10 ______________________________________________________________________________________

Share Link: