SM6311 Datasheet, PDF (2/11 Pages) SamHop Microelectronics Corp. – VFD CONTROLLER / DRIVER

SAMHOP Microelectronics Corp.
VFD CONTROLLER / DRIVER
BLOCK DIAGRAM
SM6311
DIN
DOUT
CLK
STB
VDD
R
Serial
Data
I/F
OSC
K1
4
K4
S1 ₄
S4
4 bit
Latch
Decoder
Display Memory
20bits*16words
Dimming Ckt
Segment
20
12 ^Driver
20 bit ⁸
Latch
Data
Selector
Timing Gen
Key Memory
(12*4)
5 bit Latch
8
16 bit
Shift
Register ¹⁶
8
Seg/Grid
Driver
8
Grid
Driver
Power Ckt
LED1 ~ LED5
VDD GND VEE
(+5V) (0V) (-30V)
SG1
SG12
SG13/
Grid16
SG20/
Grid9
Grid1
Grid8
Page 2
V.1.2, MAY,2003