MAX6920 Maxim Integrated Products, MAX6920 Datasheet - Page 5

• Manufacturer Part Number: MAX6920
• Description: Serial-Interfaced VFD Tube Driver
• Manufacturer: Maxim Integrated Products

www.DataSheet4U.com
Figure 1. MAX6920 Functional Diagram
3–8, 13–18
PIN
10
11
12
19
20
1
2
9
OUT0 to
BLANK
OUT11
NAME
DOUT
LOAD
GND
CLK
V
V
DIN
_______________________________________________________________________________________
CC
BB
BLANK
LOAD
CLK
DIN
VFD Tube Supply Voltage
Serial-Clock Output. Data is clocked out of the internal shift register to DOUT on CLK’s rising edge.
VFD Anode and Grid Drivers. OUT0 to OUT11 are push-pull outputs swinging from V
Blanking Input. High forces outputs OUT0 to OUT11 low, without altering the contents of the output
latches. Low enables outputs OUT0 to OUT11 to follow the state of the output latches.
Ground
Serial-Clock Input. Data is loaded into the internal shift register on CLK’s rising edge.
Load Input. Data is loaded transparently from the internal shift register to the output latch while LOAD
is high. Data is latched into the output latch on LOAD's rising edge, and retained while LOAD is low.
Serial-Data Input. Data is loaded into the internal shift register on CLK’s rising edge.
Logic Supply Voltage
12-Output, 76V, Serial-Interfaced
OUT0 OUT1 OUT2
SERIAL-TO-PARALLEL SHIFT REGISTER
LATCHES
FUNCTION
OUT11
VFD Tube Driver
MAX6920
DOUT
Pin Description
BB
to GND.
5