Rainbow-electronics MAX1621 Manuel d'utilisateur télécharger pdf (Page 14)

START

CONDITION

MOST

SIGNIFICANT

ADDRESS BIT

LEAST

SIGNIFICANT

ADDRESS BIT

SLAVE

PULLS

SDA LOW

SLAVE

PULLS

SDA LOW

REGSEL

OPR-LCDON

OPR-SHDN

D3 D2 D1 D0

SLAVE

ACKNOWLEDGE

SLAVE

ACKNOWLEDGE

MOST

SIGNIFICANT

DATA BIT

LEAST

SIGNIFICANT

DATA BIT

SCL

SDA

R/W BIT

DAC DATA

Figure 8. MAX1621 Serial-Interface Single-Byte Write Example (REGSEL = 1)

MAX1620/MAX1621

Digitally Adjustable LCD Bias Supplies

14 ______________________________________________________________________________________

START

CONDITION

MOST

SIGNIFICANT

ADDRESS BIT

LEAST

SIGNIFICANT

ADDRESS BIT

SLAVE PULLS

SDA LOW

SLAVE PULLS

SDA LOW

REGSEL

SUS-SHDN DAC DATA

D3 D2 D1 D0

SLAVE

ACKNOWLEDGE

SLAVE

ACKNOWLEDGE

MOST

SIGNIFICANT

DATA BIT

LEAST

SIGNIFICANT

DATA BIT

SCL

SDA

R/W BIT

SUS-LCDON

Figure 7. MAX1621 Serial-Interface Single-Byte Write Example (REGSEL = 0)

1 2 ... 9 10 11 12 13 14 15 16 17 18 19 20

MAX1620/MAX1621 1

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Rainbow-electronics MAX1621 Manuel d'utilisateur Page 14

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