MAX6934 Maxim Integrated Products, MAX6934 Datasheet - Page 6

• Manufacturer Part Number: MAX6934
• Description: Serial-Interfaced VFD Tube Drivers
• Manufacturer: Maxim Integrated Products

27-, 28-, and 32-Output, 76V,
Serial-Interfaced VFD Tube Drivers
6
MAX6922/
17, 19, 20,
25, 26, 27,
MAX6934
3, 4, 5, 7–
6, 28, 29
_______________________________________________________________________________________
PLCC
30–42
—
18
—
21
22
23
24
43
44
1
2
MAX6932/
MAX6933
3 –13, 15,
16, 21–34
SSOP
PIN
—
—
—
14
17
18
19
20
35
36
1
2
2
THIN QFN
14, 19, 20,
21, 24–36,
MAX6934
41, 42, 43
22, 23, 44
1–11, 13,
39
40
12
15
16
17
18
37
38
—
—
(MAX6932)
(MAX6933)
N.C. (V
(OUT27)
OUT0 to
OUT0 to
BLANK
OUT31
OUT26
NAME
DOUT
LOAD
GND
N.C.
CLK
V
V
V
DIN
CC
BB
SS
SS
)
VFD Supply Voltage
Serial-Data Output. Data is clocked out of the internal shift register to DOUT
on CLK’s falling edge. For the MAX6933 only—VFD anode and grid driver.
(OUT27 is a push-pull output swinging from V
VFD Anode and Grid Drivers. OUT_ are push-pull outputs swinging from
GND to V
VFD Anode and Grid Drivers. OUT_ are push-pull outputs swinging from
V
No Connection. Not internally connected.
For the MAX6922—No Connection. Not internally connected. For the
MAX6934—bias supply voltage.
Bias Supply Voltage
Blanking Input. High forces outputs OUT_ low without altering the contents
of the output latches. Low enables outputs OUT_ 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. On CLK’s falling edge, data is clocked out of DOUT.
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
BB
to V
SS
SS
.
for the MAX6922 and from V
FUNCTION
BB
to V
BB
SS
to V
Pin Description
for the MAX6934.
SS
.)
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