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6818 の電気的特性と機能

6818のメーカーはAllegro MicroSystemsです、この部品の機能は「DABiC-IV/ 32-BIT SERIAL-INPUT/ LATCHED SOURCE DRIVER」です。


製品の詳細 ( Datasheet PDF )

部品番号 6818
部品説明 DABiC-IV/ 32-BIT SERIAL-INPUT/ LATCHED SOURCE DRIVER
メーカ Allegro MicroSystems
ロゴ Allegro MicroSystems ロゴ 




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6818 Datasheet, 6818 PDF,ピン配置, 機能
6818
A6818xA
LOAD
SUPPLY
1
VBB
SERIAL
DATA OUT
2
OUT 32 3
OUT 31 4
OUT 30 5
OUT 29 6
OUT 28 7
OUT27 8
OUT26 9
OUT25 10
OUT 24 11
OUT 23 12
OUT22 13
OUT21 14
OUT 20 15
OUT19 16
OUT 18 17
OUT17 18
BLANKING 19 BLNK
GROUND 20
VDD
40
LOGIC
SUPPLY
39
SERIAL
DATA IN
38 OUT 1
37 OUT 2
36 OUT 3
35 OUT 4
34 OUT5
33 OUT 6
32 OUT7
31 OUT8
30 OUT9
29 OUT 10
28 OUT 11
27 OUT 12
26 OUT 13
25 OUT 14
24 OUT 15
23 OUT 16
ST 22 STROBE
CLK 21 CLOCK
Dwg. PP-029-4
ABSOLUTE MAXIMUM RATINGS
at TA = 25°C
Logic Supply Voltage, VDD ................... 7.0 V
Driver Supply Voltage, VBB ................... 60 V
Continuous Output Current Range,
IOUT ......................... -40 mA to +15 mA
Input Voltage Range,
VIN ....................... -0.3 V to VDD + 0.3 V
Package Power Dissipation,
PD ........................................ See Graph
Operating Temperature Range, TA
(Suffix ‘E–’) .................. -40°C to +85°C
(Suffix ‘S–’) .................. -20°C to +85°C
Storage Temperature Range,
TS ............................... -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.
DABiC-IV, 32-BIT SERIAL-INPUT,
LATCHED SOURCE DRIVER
The A6818– devices combine a 32-bit CMOS shift register,
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 A6818– features an increased data input rate (com-
pared with the older UCN/UCQ5818–F) and a controlled output slew
rate.
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 available as
the A6809– and A6810– (10 bits), A6811– (12 bits), and A6812– (20
bits).
The A6818– output source drivers are npn Darlingtons, capable of
sourcing up to 40 mA. The controlled output slew rate reduces electro-
magnetic 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 BLANK-
ING input high. The pnp active pull-downs will sink at least 2.5 mA.
Two temperature ranges are available for optimum performance in
commercial (suffix S-) or industrial (suffix E-) applications. Package
styles are provided for through-hole DIP (suffix -A) or minimum-area
surface-mount PLCC (suffix -EP). Copper lead frames, low logic-
power dissipation, and low output-saturation voltages allow these
devices to drive most multiplexed vacuum-fluorescent displays over
the maximum operating temperature range.
FEATURES
I Controlled Output Slew Rate I Low Output-Saturation Voltages
I High-Speed Data Storage I Low-Power CMOS Logic
I 60 V Minimum
and Latches
Output Breakdown
I Improved Replacements
I High Data Input Rate
for SN75518N, SN75518NF,
I PNP Active Pull-Downs
UCN5818, and UCQ5818
Complete part number includes a suffix to identify operating
temperature range (E- or S-) and package type (-A or -EP). Always
order by complete part number, e.g., A6818SEP .

1 Page





6818 pdf, ピン配列
6818
32-BIT SERIAL-INPUT,
LATCHED SOURCE DRIVER
CLOCK
SERIAL
DATA IN
STROBE
BLANKING
GROUND
FUNCTIONAL BLOCK DIAGRAM
SERIAL-PARALLEL SHIFT REGISTER
LATCHES
V DD
LOGIC
SUPPLY
SERIAL
DATA OUT
OUT 1 OUT 2 OUT 3
MOS
BIPOLAR
VBB
LOAD
SUPPLY
OUT N
Dwg. FP-013-1
TRUTH TABLE
Serial
Shift Register Contents
Data Clock
Input Input I1 I2 I3 ... IN-1 IN
Serial
Data Strobe
Output Input
Latch Contents
Output Contents
I1 I2 I3 ... IN-1 IN Blanklng I1 I2 I3 ... IN-1 IN
H H R1 R2 ... RN-2 RN-1 RN-1
L L R1 R2 ... RN-2 RN-1 RN-1
X
R1 R2 R3 ... RN-1 RN
RN
X X X ... X X
X
L R1 R2 R3 ... RN-1 RN
P1 P2 P3 ... PN-1 PN
PN
H P1 P2 P3 ... PN-1 PN
X X X ... X X
L = Low Logic Level H = High Logic Level X = Irrelevant P = Present State R = Previous State
L
H
P1 P2 P3 ... PN-1 PN
L L L ... L L
www.allegromicro.com


3Pages


6818 電子部品, 半導体
6818
32-BIT SERIAL-INPUT,
LATCHED SOURCE DRIVER
A6818EA & A6811SA
Dimensions in Inches
(controlling dimensions)
40 21
0.015
0.008
0.580
0.485
0.700
MAX
0.600
BSC
0.250
MAX
12
0.070
0.030
3
4
2.095
1.980
20
0.100
BSC
0.005
MIN
0.015
MIN
0.022
0.014
0.200
0.115
Dimensions in Millimeters
(for reference only)
40 21
Dwg. MA-003-40 in
0.381
0.204
14.73
12.32
17.78
MAX
15.24
BSC
6.35
MAX
12 34
1.77
0.77
53.2
50.3
20
2.54
BSC
0.13
MIN
0.39
MIN
0.558
0.356
5.08
2.93
NOTES: 1. Exact body and lead configuration at vendors option within limits shown.
2. Lead spacing tolerance is non-cumulative.
3. Lead thickness is measured at seating plane or below.
Dwg. MA-003-40 mm
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000

6 Page



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共有リンク

Link :


部品番号部品説明メーカ
681

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Microsemi Corporation
Microsemi Corporation
681-1

RECTIFIERS ASSEMBLIES

Microsemi Corporation
Microsemi Corporation
681-2

RECTIFIERS ASSEMBLIES

Microsemi Corporation
Microsemi Corporation
681-3

RECTIFIERS ASSEMBLIES

Microsemi Corporation
Microsemi Corporation


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