UPD16311 NEC, UPD16311 Datasheet - Page 11

• Manufacturer Part Number: UPD16311
• Description: 1/8- to 1/16-DUTY FIPTM VFD CONTROLLER/DRIVER
• Manufacturer: NEC

Serial Communication Format
Reception (command/data write)
Transmission (data read)
(1 k
STB
CLK
D
STB
CLK
Because the D
*: When data is read, a wait time t
D
D
OUT

IN
IN
command, until the falling of the first clock that has read the data.
to 10 k

).
OUT
1
b0
pin is an N-ch, open-drain output pin, be sure to connect an external pull-up resistor to this pin
1
2
b0
b1
Data reading command is set.
3
b2
WAIT
2
b1
4
b3
of 1
5


b4
s is necessary since the rising of the eighth clock that has set the
3
b2
6
b5
7
b6
8
b7
t
WAIT
*
1
b0
7
b6
2
b1
Data reading starts.
3
b2
8
b7
If data is contiguous
PD16311
4
b3
5
b4
11
6
b5