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A6821 Datasheet, PDF (1/9 Pages) Allegro MicroSystems – DABiC-5 8-Bit Serial Input Latched Sink Drivers | |||
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A6821
DABiC-5 8-Bit Serial Input Latched Sink Drivers
Package A
16-pin DIP
Package LW
16-pin Wide Body SOIC
A merged combination of bipolar and MOS technology gives these
devices an interface ï¬exibility beyond the reach of standard logic
buffers and power driver arrays. Typical applications include driving
multiplexed LED displays or incandescent lamps.
The A6821 has an eight-bit CMOS shift register and CMOS control
circuitry, eight CMOS data latches, and eight bipolar current-sinking
Darlington output drivers.
The CMOS inputs are compatible with standard CMOS logic levels.
TTL circuits may require the use of appropriate pull-up resistors. By
using the serial data output, the drivers can be cascaded for interface
applications requiring additional drive lines.
The A6821SA is furnished in a standard 16-pin plastic DIP. The
A6821EA is a 16-pin plastic DIP, capable of operation from -40°C to
+85°C. The A6821SLW is a 16-lead wide-body SOIC, for surface-
mount applications. These devices are lead (Pb) free, with 100% matte
tin plated leadframes.
ABSOLUTE MAXIMUM RATINGS
Output Voltage, VOUT .........................................50 V
Logic Supply Voltage, VDD...................................7 V
Input Voltage Range, VIN ..............â0.3 V toVDD+0.3 V
Continuous Output Current (each output), IOUT ... 500 mA
Package Power Dissipation, PD
A6821SA/A6821EA..................................2.1 W
A6821SLW............................................... 1.5 W
Operating Temperature Range
Ambient Temperature, TA ............â20°C to +85°C
Storage Temperature, TS ..........â55°C to +150°C
Caution: CMOS devices have input-static protection,
but are susceptible to damage when exposed to
extremely high static-electrical charges.
FEATURES
 3.3 V to 5 V logic supply range
 Power on reset (POR)
 To 10 MHz data input rate
 CMOS, TTL compatible
 â40°C operation available
 Schmitt trigger inputs for improved
noise immunity
 Low-power CMOS logic and latches
 High-voltage current-sink outputs
 Internal pull-up/pull down resistors
APPLICATIONS
 Multiplexed LED displays
 Incandescent lamps
Use the following complete part numbers when ordering:
Part Number
A6821SA-T
A6821EA-T
A6821SLW-T
Package
16-pin DIP
16-pin DIP
16-pin wide body SOIC
Ambient
â20ºC to +85ºC
â40ºC to +85ºC
â20ºC to +85ºC
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