DABiC-IV, 10-BIT SERIAL-INPUT,
LATCHED SOURCE DRIVERS
A6810xA
Data Sheet
26182.124B
ABSOLUTE MAXIMUM RATINGS
at T
A
= 25°C
Logic Supply Voltage, V
DD
................... 7.0 V
Driver Supply Voltage, V
BB
................... 60 V
Continuous Output Current Range,
I
OUT
......................... -40 mA to +15 mA
Input Voltage Range,
V
IN
....................... -0.3 V to V
DD
+ 0.3 V
Package Power Dissipation,
P
D
........................................ See Graph
Operating Temperature Range, T
A
(Suffix ‘E–’) .................. -40°C to +85°C
(Suffix ‘S–’) .................. -20°C to +85°C
Storage Temperature Range,
T
S
............................... -55°C to +125°C
Caution: These CMOS devices have input
static protection (Class 2) but are still
susceptible to damage if exposed to
extremely high static electrical charges.
The A6809– and A6810– devices combine 10-bit CMOS shift
registers, accompanying data latches and control circuitry with bipolar
sourcing outputs and pnp active pull downs. Designed primarily to
drive vacuum-fluorescent displays, the 60 V and -40 mA output ratings
also allow these devices to be used in many other peripheral power
driver applications. The A6809– and A6810– feature an increased data
input rate (compared with the older UCN/UCQ5810-F) and a con-
trolled output slew rate. The A6809xLW and A6810xLW are identical
except for pinout.
The CMOS shift register and latches allow direct interfacing with
microprocessor-based systems. With a 3.3 V or 5 V logic supply,
typical serial-data input rates are up to 33 MHz.
A CMOS serial data output permits cascade connections in applica-
tions requiring additional drive lines. Similar devices are avail-able as
the A6811– (12 bits), A6812– (20 bits), and A6818– (32 bits).
The A6809– and A6810– output source drivers are npn Darling-
tons, capable of sourcing up to 40 mA. The controlled output slew rate
reduces electromagnetic noise, which is an important consideration in
systems that include telecommunications and/or microprocessors and
to meet government emissions regulations. For inter-digit blanking, all
output drivers can be disabled and all sink drivers turned on with a
BLANKING input high. The pnp active pull-downs will sink at least
2.5 mA.
All devices are available in two temperature ranges for optimum
performance in commercial (suffix S-) or industrial (suffix E-) applica-
tions. The A6810– is provided in three package styles for through-hole
DIP (suffix -A), surface-mount SOIC (suffix -LW), or minimum-area
surface-mount PLCC (suffix -EP). The A6809– is provided in the
SOIC (suffix -LW) only. Copper lead frames, low logic-power dissi-
pation, and low output-saturation voltages allow all devices to source
25 mA from all outputs continuously over the maximum operating
temperature range.
FEATURES
a73 Controlled Output Slew Rate
a73 High-Speed Data Storage
a73 60 V Minimum
Output Breakdown
a73 High Data Input Rate
a73 PNP Active Pull-Downs
Complete part number includes a suffix to identify operating
temperature range (E- or S-) and package type (-A, -EP, or -LW).
Always order by complete part number, e.g., A6810SLW .
6809 AND
6810
a73 Low Output-Saturation Voltages
a73 Low-Power CMOS Logic
and Latches
a73 Improved Replacements
for TL4810–, UCN5810–,
and UCQ5810–
2
3
4
5
6
7
8
910
11
12
13
14
15
16
17
18
SERIAL
DATA OUT
LOAD
SUPPLY
SERIAL
DATA IN
BLANKING
LOGIC
SUPPLY
STROBE
GROUND
CLOCK
CLK
V
ST
BLNK
DD
BB
V
OUT
9
OUT
10
OUT
1
OUT
2
OUT
3
Dwg. PP-029
OUT
8
OUT
7
OUT
6
OUT
5
OUT
4
1
LATCHES
REGISTER
REGISTER
LATCHES