PT6311 Просмотр технического описания (PDF) - Princeton Technology

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PT6311

VFD Driver/Controller IC / 52 Pins Package

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PT6311

SERIAL COMMUNICATION FORMAT

The following diagram shows the PT6311 serial communication format. The DOUT Pin is an N-channel, open-drain

output pin; therefore, it is highly recommended that an external pull-up resistor (1 KΩ to 10 KΩ) must be connected to

DOUT.

Reception (Data/Command Write)

If data continues

STB

DIN

b0

b1 b2

b6

b7

CLK

1

2

3

7

8

Transmission (Data Read)

STB

DIN

CLK

DOUT

b0 b1 b2 b3 b4 b5 b6 b7

1 23456 78

1 234 56

t wait

b0 b1 b2 b3 b4 b5

Data Read Command is set

Data Reading Starts

where: twait (waiting time) > 1µs

It must be noted that when the data is read, the waiting time (twait) between the rising of the eighth clock that has set the

command and the falling of the first clock that has read the data is greater or equal to 1µs.

V3.2

14

November 2009

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