STP16DPP05XTTR datasheet(11/34 Pages) STMICROELECTRONICS

부품명	STP16DPP05XTTR

상세설명	Low voltage 16-bit constant current LED sink driver with output error detection

PDF	34 Pages

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제조업체	STMICROELECTRONICS [STMicroelectronics]

홈페이지	http://www.st.com

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11 / 34 page

STP16DPP05

Timing diagrams

DocID16518 Rev 4

11/34

Timing diagrams

Table 9: Truth table

CLOCK

LE/DM1

OE/DM2

SERIAL-IN

OUT0 ............. OUT7 ................ OUT15

SDO

_|¯

Dn ..... Dn - 7 ..... Dn -15

Dn - 15

_|¯

Dn + 1

No change

Dn - 14

_|¯

Dn + 2

Dn + 2 ..... Dn - 5 ..... Dn -13

Dn - 13

¯|_

Dn + 3

Dn + 2 ..... Dn - 5 ..... Dn -13

Dn - 13

¯|_

Dn + 3

OFF

Dn - 13

OUTn = ON when Dn = H OUTn = OFF when Dn = L.

Figure 7: Timing diagram

1 Latch and output enable terminals are level-sensitive and are not synchronized

with rising or falling edge of CLK signal.

2 When LE/DM1 terminal is low level, the latch circuit holds previous set of data.

3 When LE/DM1 terminal is high level, the latch circuit refreshes new set of data

from SDI chain.

4 When OE/DM2

terminal is at low level, the output terminals Out 0 to Out 15

respond to data in the latch circuits, either ‘1’ for ON or ‘0’ for OFF.

5 When OE/DM2

terminal is at high level, all output terminals are switched

OFF.

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