MAX6850

更新时间： 2024-09-24 23:51:51

品牌	Logo	应用领域
美信 - MAXIM		显示控制器
页数	文件大小	规格书
34页	482K
描述
4-Wire Interfaced.7-.14-.and 16-Segment Alphanumeric Vacuum-Fluorescent Display Controller

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MAX6850 数据手册

19-2635; Rev 1; 1/03

4-Wire Interfaced, 7-, 14-, and 16-Segment Alpha-

numeric Vacuum-Fluorescent Display Controller

General Description

Features

The MAX6850 compact vacuum-fluorescent display

(VFD) controller provides microprocessors with the mul-

tiplex timing for 7-segment, 14-segment, or 16-segment

alphanumeric VFD displays up to 96 characters and

controls industry-standard, shift-register, high-voltage

grid/anode VFD tube drivers. The device supports dis-

play tubes using either one or two digits per grid, as

well as universal displays. Hardware is included to sim-

plify the generation of cathode bias and filament sup-

plies and to provide up to five logic outputs, including a

buzzer driver. The MAX6850 provides an internal cross-

point switch to match any tube-driver shift-register

grid/anode order, and is compatible with both chip-in-

glass and external tube drivers.

ꢀ High-Speed 26MHz SPI-/QSPI-/MICROWIRE™-

Compatible Serial Interface

ꢀ 2.7V to 3.6V Operation

ꢀ Controls Up to 48 Grids of 7-Segment, 14-Segment,

or 16-Segment Alphanumeric Digits

ꢀ One Digit and Two Digits per Grid and Universal

Displays Supported

ꢀ 16-Step Digital Brightness Control

ꢀ Built-In ASCII 104-Character Font

ꢀ 24 User-Definable Characters

ꢀ Up to Four Annunciators per Grid with Automatic

Blinking Control

The MAX6850 includes an ASCII 104-character font,

multiplex scan circuitry, and static RAM that stores

digit, cursor, and annunciator data, as well as font data

for 24 user-definable characters. The display intensity

can be adjusted by an internal 16-step digital bright-

ness control. The device also includes separate annun-

ciator and cursor control with automatic blinking, as

well as a low-power shutdown mode.

ꢀ Separate Cursor Control with Automatic Blinking

ꢀ Filament Drive Full-Bridge Waveform Synthesis

ꢀ Buzzer Tone Generator with Single-Ended or

Push-Pull Driver

ꢀ Up to Five General-Purpose Logic Outputs

ꢀ 9µA Low-Power Shutdown (Data Retained)

ꢀ 16-Pin QSOP Package

The MAX6850 provides timing to generate the PWM

waveforms to drive the tube filament from a DC supply.

The filament drive is synchronized to the display multi-

plexing to eliminate beat artifacts. The MAX6850 is

compatible with SPI™ and QSPI™.

Ordering Information

For a 2-wire interfaced version, refer to the MAX6851*

data sheet.

PART

TEMP RANGE

PIN-PACKAGE

MAX6850AEE

-40 C to +125 C

16 QSOP

*Future product—contact factory for availability.

Applications

Industrial Controllers

Typical Application Circuit

Display Modules

Retail POS Displays

White Goods

CHIP-ON-GLASS VFD

Weight and Tare

Displays

Professional Audio

Equipment

VFD SUPPLY VOLTAGE

0.1µF

Bar Graph Displays

MICROCONTROLLER

VFCLK

VFDOUT

VFLOAD

MAX6850

DOUT

SCLK

DIN

SCLK

Pin Configuration and Functional Diagram appear at end of

data sheet.

VFBLANK

OSC2

SPI and QSPI are trademarks of Motorola, Inc.

OSC1

GND

10kΩ

MICROWIRE is a trademark of National Semiconductor Corp.

56pF

________________________________________________________________ Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

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与MAX6850相关器件

型号	品牌	获取价格	描述	数据表
MAX6850AEE	MAXIM	获取价格	4-Wire Interfaced, 7-, 14-, and 16-Segment Alphanumeric Vacuum-Fluorescent Display Control
MAX6850AEE-T	MAXIM	获取价格	Vacuum Fluorescent Driver, 1-Segment, CMOS, PDSO16, 0.150 INCH, 0.25 MM PITCH, MO-137, QSO
MAX6851	MAXIM	获取价格	2-Wire Interfaced.7-.14-.and 16-Segment Alphanumeric Vacuum-Fluorescent Display Controller
MAX6851AEE	MAXIM	获取价格	2-Wire Interfaced, 7-, 14-, and 16-Segment Alpha numeric Vacuum -Fluorescent
MAX6851AEE-T	MAXIM	获取价格	Fluorescent Display Controller, CMOS, PDSO16, 0.150 INCH, 0.635 MM PITCH, QSOP-16
MAX6852	MAXIM	获取价格	4-Wire Interfaced, 5 x 7 Matrix Vacuum- Fluorescent Display Controller
MAX6852AEE	MAXIM	获取价格	4-Wire Interfaced, 5 x 7 Matrix Vacuum- Fluorescent Display Controller
MAX6852AEE+	MAXIM	获取价格	Vacuum Fluorescent Driver
MAX6852AEE+T	MAXIM	获取价格	Vacuum Fluorescent Driver
MAX6852AEE-T	MAXIM	获取价格	Vacuum Fluorescent Driver, CMOS, PDSO16, 0.150 INCH, 0.025 INCH PITCH, MO-137AA, QSOP-16

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