MAX6921AUI+T Maxim Integrated Products, MAX6921AUI+T Datasheet - Page 6

• Manufacturer Part Number: MAX6921AUI+T
• Description: IC DRVR VFD TUBE SRL 28-TSSOP
• Manufacturer: Maxim Integrated Products

Specifications of MAX6921AUI+T

• Display Type: Vacuum Fluorescent (VF)
• Interface: 4-Wire Serial
• Current - Supply: 1.65mA
• Voltage - Supply: 8 V ~ 76 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 28-TSSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Configuration: -
• Digits Or Characters: -
• Lead Free Status / Rohs Status: Details

20-Output, 76V, Serial-Interfaced
VFD Tube Drivers
Figure 1. MAX6921/MAX6931 Functional Diagram
6
MAX6921
10–19
24–28
_______________________________________________________________________________________
20
21
22
23
—
—
—
TSSOP
MAX6931
10–19
24–28
PIN
—
20
21
22
23
—
9
BLANK
LOAD
CLK
SO/PLCC
MAX6921
DIN
WIDE
17-26
3-12
—
—
13
14
15
16
—
OUT19 to
OUT19 to
OUT9 to
OUT9 to
OUT10
OUT10
BLANK
NAME
LOAD
OUT5
OUT0
GND
CLK
V
SS
OUT0 OUT1 OUT2
Filament Bias Supply Voltage. Bypass to GND with a 100nF capacitor.
VFD Anode and Grid Drivers. OUT19 to OUT10 are push-pull outputs swinging from
V
VFD Anode and Grid Drivers. OUT19 to OUT10 are push-pull outputs swinging from
V
Blanking Input. High forces outputs OUT0 to OUT19 low, without altering the
contents of the output latches. Low enables outputs OUT0 to OUT19 to follow the
state of the output latches.
Ground
S er i al - C l ock Inp ut. D ata i s l oad ed i nto the i nter nal shi ft r eg i ster on C LK’ s r i si ng ed g e.
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.
VFD Anode and Grid Drivers. OUT9 to OUT5 are push-pull outputs swinging from
V
VFD Anode and Grid Drivers. OUT9 to OUT0 are push-pull outputs swinging from
V
SERIAL-TO-PARALLEL SHIFT REGISTER
BB
BB
BB
BB
to GND (MAX6921 only), and from V
to GND.
to GND (MAX6921 only), and from V
to GND.
LATCHES
OUT19
Pin Description (continued)
FUNCTION
BB
BB
to V
to V
MAX6921 ONLY
MAX6921
MAX6931
SS
SS
DOUT
(MAX6931 only).
(MAX6931 only).