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BiMOS II 8-Bit Serial Input Latched Driver



Allegro MicroSystems 로고
Allegro MicroSystems
5822 데이터시트, 핀배열, 회로
5821 AND
5822
CLOCK 1 CLK
SERIAL
DATA IN
2
LOGIC 3
GROUND
LOGIC
SUPPLY
4
VDD
SERIAL
DATA OUT
5
STROBE 6 ST
OUTPUT
ENABLE
7
OE
POWER 8
GROUND
SUB
16 OUT 1
15 OUT2
14 OUT 3
13 OUT4
12 OUT5
11 OUT6
10 OUT7
9 OUT8
Dwg. PP-026A
Note the DIP package and the SOIC package are
electrically identical and share common terminal
number assignments.
ABSOLUTE MAXIMUM RATINGS
at 25°C Free-Air Temperature
Output Voltage, VOUT
UCN5821A & UCN5821LW..... 50 V
UCN5822A & UCN5822LW..... 80 V
Logic Supply Voltage, VDD ............. 15 V
Input Voltage Range,
VIN .................. -0.3 V to VDD + 0.3 V
Continuous Output Current,
IOUT ..................................... 500 mA
Package Power Dissipation, PD
Package Code ‘A’ .................. 2.1 W
Package Code ‘LW’ ............... 1.5 W
Operating Temperature Range,
TA ............................ -20°C to +85°C
Storage Temperature Range,
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.
BiMOS II 8-BIT SERIAL-INPUT,
LATCHED DRIVERS
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. The UCN5821A,
UCN5821LW, UCN5822A, and UCN5822LW each have an
eight-bit CMOS shift register and CMOS control circuitry, eight
CMOS data latches, and eight bipolar current-sinking Darlington
output drivers. The UCN5821A/LW and UCN5822A/LW are
identical except for rated output voltage.
BiMOS II devices have much higher data-input rates than the
original BiMOS circuits. With a 5 V logic supply, they will
typically operate at better than 5 MHz. With a 12 V supply,
significantly higher speeds are obtained. The CMOS inputs are
compatible with standard CMOS and NMOS 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 UCN5821/22A are furnished in a standard 16-pin plastic
DIP; the UCN5821/22LW are in a 16-lead wide-body SOIC for
surface-mount applications. The UCN5821A is also available for
operation from -40°C to +85°C. To order, change the prefix from
‘UCN’ to ‘UCQ’.
FEATURES
I To 3.3 MHz Data Input Rate
I CMOS, NMOS, TTL Compatible
I Internal Pull-Down Resistors
I Low-Power CMOS Logic & Latches
I High-Voltage Current-Sink Outputs
I Automotive Capable
Always order by complete part number, e.g., UCN5821A .
www.allegromicro.com


5822 데이터시트, 핀배열, 회로
5821 AND 5822
8-BIT SERIAL-INPUT,
LATCHED DRIVERS
TYPICAL INPUT CIRCUITS
VDD
IN
STROBE &
OUTPUT
ENABLE
CLOCK &
SERIAL
DATA IN
IN
Dwg. EP-010-3
VDD
Dwg. EP-010-4A
FUNCTIONAL BLOCK DIAGRAM
CLOCK 1
SERIAL
DATA IN
2
LOGIC
GROUND 3
SERIAL-PARALLEL SHIFT REGISTER
LATCHES
VDD
4 LOGIC
SUPPLY
5
SERIAL
DATA OUT
6 STROBE
7
OUTPUT ENABLE
(ACTIVE LOW)
MOS
BIPOLAR
16 15 14
13 12
11 10
9
OUT 1 OUT 2 OUT 3 OUT 4 OUT 5 OUT 6 OUT 7 OUT 8
SUB
POWER
8 GROUND
Dwg. FP-013A
NOTE — There is an indeterminate resistance between logic ground and power
ground. For proper operation, these terminals must be externally connected
together.
Number of Outputs ON UCN5821A Max. Allowable Duty Cycle
(IOUT = 200 mA
VDD = 12 V)
at Ambient Temperature of
25°C 40°C 50°C 60°C 70°C
8 90% 79% 72% 65% 57%
7 100% 90% 82% 74% 65%
6 100% 100% 96% 86% 76%
5 100% 100% 100% 100% 91%
4 100% 100% 100% 100% 100%
3 100% 100% 100% 100% 100%
2 100% 100% 100% 100% 100%
1 100% 100% 100% 100% 100%
TYPICAL OUTPUT DRIVER
OUT
7.2K
3K
SUB
Dwg. No. A-14,314
Number of Outputs ON UCN5821LW Max. Allowable Duty Cycle
(IOUT = 200 mA
VDD = 12 V)
at Ambient Temperature of
25°C 40°C 50°C 60°C 70°C
8 67% 59% 54% 49% 43%
7 77% 68% 62% 56% 49%
6 90% 79% 72% 65% 57%
5 100% 95% 86% 78% 68%
4 100% 100% 100% 98% 86%
3 100% 100% 100% 100% 100%
2 100% 100% 100% 100% 100%
1 100% 100% 100% 100% 100%
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
Copyright © 1985, 2000, Allegro MicroSystems, Inc.




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5821

BiMOS II 8-Bit Serial Input Latched Driver - Allegro MicroSystems



5822

BiMOS II 8-Bit Serial Input Latched Driver - Allegro MicroSystems