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PDF 6821SLWT Data sheet ( Hoja de datos )
| Número de pieza | 6821SLWT | |
| Descripción | DABiC-5 8-Bit Serial Input Latched Sink Drivers | |
| Fabricantes | Allegro MicroSystems | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de 6821SLWT (archivo pdf) en la parte inferior de esta página. Total 9 Páginas | ||
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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 flexibility 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 ..............–0.3 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 ............–20°C to +85°C
Storage Temperature, TS ..........–55°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
–40°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
–20ºC to +85ºC
–40ºC to +85ºC
–20ºC to +85ºC
Free Datasheet http://www.datasheet4u.com/
1 page  
A6821
DABiC-5 8-Bit Serial Input Latched Sink Drivers
Maximum Allowable Duty Cycle, IOUT = 200 mA, VDD = 5 V
Number of
A mbient T emperature
Outputs ON 25°C 40°C 50°C 60°C
70°C
A6821SA/A6821EA
8
7
6
5
4
3
2
1
A6821SLW
8
7
6
5
4
3
2
1
90%
100%
100%
100%
100%
100%
100%
100%
67%
77%
90%
100%
100%
100%
100%
100%
79%
90%
100%
100%
100%
100%
100%
100%
59%
68%
79%
95%
100%
100%
100%
100%
72%
82%
96%
100%
100%
100%
100%
100%
54%
62%
72%
86%
100%
100%
100%
100%
65%
74%
86%
100%
100%
100%
100%
100%
49%
56%
65%
78%
98%
100%
100%
100%
57%
65%
76%
91%
100%
100%
100%
100%
43%
49%
57%
68%
86%
100%
100%
100%
Terminal List Table
Name
CLK
VDD
ST
OE
SUB
OUT8
OUT7
OUT6
OUT5
OUT4
OUT3
OUT2
OUT1
Description
Clock
Serial Data In
Logic Ground*
Logic Supply
Serial Data Out
Strobe
Output Enable (active low)
Power Ground*
Serial Data Output
Serial Data Output
Serial Data Output
Serial Data Output
Serial Data Output
Serial Data Output
Serial Data Output
Serial Data Output
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
* There is an indeterminate resistance between logic ground and power ground.
For proper operation, these terminals must be externally connected together.
www.allegromicro.com
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
5
Free Datasheet http://www.datasheet4u.com/
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet 6821SLWT.PDF ] | |
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