A6811SA ALLEGRO [Allegro MicroSystems], A6811SA Datasheet

A6811SA

Manufacturer Part Number

A6811SA

Description

DABiC-IV, 32-BIT SERIAL-INPUT, LATCHED SOURCE DRIVER

Manufacturer

ALLEGRO [Allegro MicroSystems]

Datasheet

1.A6811SA.pdf (7 pages)

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

A6811SA-T

Manufacturer:

ROHM

Quantity:

6 222

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Logic Supply Voltage, V

Driver Supply Voltage, V

Continuous Output Current Range,

Input Voltage Range,

Package Power Dissipation,

Operating Temperature Range, T

Storage Temperature Range,

Caution: These CMOS devices have input

static protection (Class 2) but are still

susceptible to damage if exposed to

extremely high static electrical charges.

ABSOLUTE MAXIMUM RATINGS

(Suffix ‘E–’) .................. -40°C to +85°C

(Suffix ‘K–’) ................ -40°C to +125°C

(Suffix ‘S–’) .................. -20°C to +85°C

OUT

........................................ See Graph

............................... -55°C to +125°C

....................... -0.3 V to V

......................... -40 mA to +15 mA

A6818xEP

at T

= 25°C

.................. 7.0 V

................... 60 V

+ 0.3 V

6818

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

(compared with the older UCN/UCQ5818–F) and a controlled output slew rate.

processor-based systems. With a 3.3 V or 5 V logic supply, typical serial-data

input rates are up to 33 MHz.

requiring additional drive lines. Similar devices are available as the A6810–

(10 bits) and A6812– (20 bits).

sourcing up to 40 mA. The controlled output slew rate reduces electromag-

netic noise, which is an important consideration in systems that include

telecommunications and/or microprocessors and to meet government emis-

sions 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.

commercial (suffix S-), industrial (E-), and extended industrial (K-) applica-

tions. The package style provided is the 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

Always order by complete part number:

Part Number

A6818EEP

A6818EEP-T

A6818EEPTR

A6818EEPTR-T

A6818KEP

A6818KEP-T

A6818KEPTR

A6818KEPTR-T

A6818SEP

A6818SEP-T

A6818SEPTR

A6818SEPTR-T

Controlled Output Slew Rate

60 V Minimum

Output Breakdown

PNP Active Pull-Downs

Low-Power CMOS Logic

and Latches

The A6818– devices combine a 32-bit CMOS shift register, accompanying

The CMOS shift register and latches allow direct interfacing with micro-

A CMOS serial data output permits cascade connections in applications

The A6818– output source drivers are npn Darlingtons, capable of

Three temperature ranges are available for optimum performance in

The lead (Pb) free versions have 100% matte tin leadframe plating.

DABiC-IV, 32-BIT SERIAL-INPUT,

LATCHED SOURCE DRIVER

Pb-free

–

Yes

–

Yes

–

Yes

–

Yes

–

Yes

–

Yes

27 pieces/tube

450 pieces/13-in. reel

27 pieces/tube

450 pieces/13-in. reel

27 pieces/tube

450 pieces/13-in. reel

Packing

High-Speed Data Storage

High Data Input Rate

Low Output-Saturation Voltages

Improved Replacements

for SN75518N, SN75518NF,

UCN5818–, and UCQ5818–

Ambient Temperature, T

–40 to 125

–40 to 85

–20 to 85

(°C)

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A6811SA Summary of contents

Page 1

A6818xEP ABSOLUTE MAXIMUM RATINGS 25°C A Logic Supply Voltage, V .................. 7 Driver Supply Voltage, V ................... Continuous Output Current Range, ...

SERIAL-INPUT, LATCHED SOURCE DRIVER IN Dwg. EP-010-5 V Dwg. EP-021- OUT 29 OUT OUT 19 3.0 2.5 BB OUT N 2.0 1.5 1.0 0 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 ...

Page 3

CLOCK SERIAL DATA IN STROBE BLANKING GROUND OUT Serial Shift Register Contents Data Clock Input Input ... N ... N ... R ...

Page 4

SERIAL-INPUT, LATCHED SOURCE DRIVER Characteristic Symbol Output Leakage Current I CEX Output Voltage V OUT(1) V OUT(0) Output Pull-Down Current I OUT(0) Input Voltage V IN(1) V IN(0) Input Current I IN(1) I IN(0) Input Clamp Voltage V ...

Page 5

CLOCK SERIAL DATA IN SERIAL DATA OUT STROBE BLANKING OUT BLANKING OUT A. Data Active Time Before Clock Pulse (Data Set-Up Time), t ......................................... 25 ns su(D) B. Data Active Time After Clock Pulse (Data Hold Time), t ............................................... 25 ...

Page 6

BSC 8.10 7.39 0.533 0.331 8.10 7.39 1.27 BSC NOTES: 1. Exact body and lead configuration at vendor’s option within limits shown. 2. Lead spacing tolerance is non-cumulative. Dimensions in Inches (controlling dimensions) ...

Page 7

SERIAL-INPUT, LATCHED SOURCE DRIVER The products described here are manufactured under one or more U.S. patents or U.S. patents pending. Allegro MicroSystems, Inc. reserves the right to make, from time to time, such departures from the detail specifications ...

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A6811SA ALLEGRO [Allegro MicroSystems], A6811SA Datasheet

A6811SA

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A6811SA Summary of contents

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