|Category||Interface and Interconnect|
|Company||Allegro Micro Systems, Inc.|
|Datasheet||Download A6810 datasheet
The 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 vacuumfluorescent displays, the 60 V and -40 mA output ratings also allow these devices to be used in many other peripheral power driver applications. The A6810 feature an increased data input rate (compared with the older UCN/UCQ5810-F) and a controlled output slew rate. The CMOS shift register and latches allow direct interfacing with microprocessor-based systems. With 5 V logic supply, serial-data input rates of at least 10 MHz. A CMOS serial data output permits cascade connections in applications requiring additional drive lines. Similar devices are avail-able as the A6811 (12 bits), A6812 (20 bits), and A6818 (32 bits). The A6810 output source drivers are npn Darlingtons, capable of sourcing 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. The A6810 are available in two temperature ranges for optimum performance in commercial (suffix S-) or industrial (suffix E-) applications. They are provided in two package styles for through-hole DIP (suffix -A) or minimum-area surface-mount SOIC (suffix -LW). Copper lead frames, low logic-power dissipation, and low outputsaturation voltages allow all devices to source 25 mA from all outputs continuously over the maximum operating temperature range.OUT 9 OUT 10 SERIAL DATA OUT LOAD SUPPLY SERIAL DATA IN BLANKING OUT 1 OUT 2 OUT 3
Logic Supply Voltage, VDD................... 7.0 V Driver Supply Voltage, VBB................... 60 V Continuous Output Current Range, IOUT......................... +15 mA Input Voltage Range, VIN....................... V to VDD 0.3 V Package Power Dissipation, PD........................................ See Graph Operating Temperature Range, TA (Suffix `E').................. to +85°C (Suffix `S').................. to +85°C Storage Temperature Range, TS............................... to +125°CFEATURES
s Controlled Output Slew Rate s High-Speed Data Storage 60 V Minimum s Improved Replacements Output Breakdown for UCN5810, s High Data Input Rate and UCQ5810 s PNP Active Pull-Downs s Low Output-Saturation Voltages s Low-Power CMOS Logic and Latches
Caution: These CMOS devices have input static protection (Class 2) but are still susceptible to damage if exposed to extremely high static electrical charges.
Complete part number includes a suffix to identify operating temperature range (E- or S-) and package type (-A or -LW). Always order by complete part number, e.g., A6810SLW.OUT 8 OUT 7 OUT 6 CLOCK GROUND LOGIC SUPPLY STROBE OUT 5 OUT 4 NO CONNECTION
OUT 9 OUT 10 SERIAL DATA OUT LOAD SUPPLY SERIAL DATA IN BLANKING OUT 1 OUT 2 OUT 3 NO CONNECTION
115 Northeast Cutoff, Box 15036 Worcester, Massachusetts (508) 853-5000 Copyright 1998, 2003 Allegro MicroSystems, Inc.CLOCK SERIAL DATA IN STROBE V DD LOGIC SUPPLY SERIAL DATA OUT
Serial Shift Register Contents Data Clock Input RN X Serial Data Strobe Output Input P3... X
L = Low Logic Level H = High Logic Level X = Irrelevant
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