MAX6954AAX

更新时间： 2024-09-13 22:55:15

品牌	Logo	应用领域
美信 - MAXIM		显示驱动器驱动程序和接口接口集成电路光电二极管
页数	文件大小	规格书
38页	395K
描述
4-Wire Interfaced, 2.7V to 5.5V LED Display Driver with I/O Expander and Key Scan

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技术参数
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MAX6954AAX 技术参数

是否无铅：	含铅	是否Rohs认证：	不符合
生命周期：	Obsolete	零件包装代码：	SSOP
包装说明：	SSOP-36	针数：	36
Reach Compliance Code：	not_compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.25
Is Samacsys：	N	其他特性：	BARGRAPH
数据输入模式：	SERIAL	显示模式：	DIGIT
接口集成电路类型：	LED DISPLAY DRIVER	JESD-30 代码：	R-PDSO-G36
JESD-609代码：	e0	长度：	15.415 mm
湿度敏感等级：	1	复用显示功能：	YES
位数/字符：	16-DIGIT	功能数量：	1
区段数：	24	端子数量：	36
最高工作温度：	125 °C	最低工作温度：	-40 °C
封装主体材料：	PLASTIC/EPOXY	封装代码：	SSOP
封装等效代码：	SOP36,.4,32	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE, SHRINK PITCH	峰值回流温度（摄氏度）：	245
电源：	3/5 V	认证状态：	Not Qualified
座面最大高度：	2.64 mm	子类别：	Display Drivers
最大供电电压：	5.5 V	最小供电电压：	2.7 V
标称供电电压：	3.3 V	表面贴装：	YES
技术：	CMOS	温度等级：	AUTOMOTIVE
端子面层：	Tin/Lead (Sn/Pb)	端子形式：	GULL WING
端子节距：	0.8 mm	端子位置：	DUAL
处于峰值回流温度下的最长时间：	NOT SPECIFIED	宽度：	7.495 mm
最小 fmax：	8 MHz	Base Number Matches：	1

MAX6954AAX 数据手册

19-2460; Rev 1; 10/02

4 -Wire In t e rfa c e d , 2 .7 V t o 5 .5 V LED Dis p la y

Drive r w it h I/O Ex p a n d e r a n d Ke y S c a n

Ge n e ra l De s c rip t io n

Fe a t u re s

The MAX6954 is a compact display driver that inter-

faces microprocessors to a mix of 7-segment, 14-seg-

ment, and 16-segment LED displays through an SPI™-

or QSPI™-compatible 4-wire serial interface. The serial

interface may be cascaded through multiple devices.

The MAX6954 drives up to 16 digits 7-segment, 8 digits

14-s e g me nt, 8 d ig its 16-s e g me nt, or 128 d is c re te

LEDs, while functioning from a supply voltage as low as

2.7V. The driver includes five I/O expander (or GPIO)

lines, some or all or which may be configured as a key-

s witc h re a d e r, whic h a utoma tic a lly s c a ns a nd

debounces a matrix of up to 32 switches.

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

Compatible Serial Interface

ꢀ 2.7V to 5.5V Operation

ꢀ Drives Up to 16 Digits 7-Segment, 8 Digits

14-Segment, 8 Digits 16-Segment, 128 Discrete

LEDs, or a Combination of Digit Types

ꢀ Drives Common-Cathode Monocolor and Bicolor

LED Displays

ꢀ Built-In ASCII 104-Character Font for 14-Segment

and 16-Segment Digits and Hexadecimal Font for

7-Segment Digits

Included on chip are full 14- and 16-segment ASCII

104-character fonts, a hexadecimal font for 7-segment

displays, multiplex scan circuitry, anode and cathode

drivers, and static RAM that stores each digit. The max-

imum segment current for the display digits is set using

a single external resistor. Digit intensity can be inde-

pendently adjusted using the 16-step internal digital

brightness control. The MAX6954 includes a low-power

shutdown mode, a scan-limit register that allows the

user to display from 1 to 16 digits, segment blinking

(synchronized across multiple drivers, if desired), and a

test mode, which forces all LEDs on. The LED drivers

are slew-rate limited to reduce EMI.

ꢀ Automatic Blinking Control for each Segment

ꢀ 10µA (typ) Low-Power Shutdown (Data Retained)

ꢀ 16-Step Digit-by-Digit Digital Brightness Control

ꢀ Display Blanked on Power-Up

ꢀ Slew-Rate Limited Segment Drivers for Lower EMI

ꢀ Five GPIO Port Pins Can Be Configured as Key-

Switch Reader to Scan and Debounce Up to 32

Switches with n-Key Rollover

ꢀ IRQ Output when a Key Input Is Debounced

ꢀ 36-Pin SSOP and 40-Pin DIP Packages

ꢀ Automotive Temperature Range Standard

For a 2-wire interfaced version, refer to the MAX6955*

data sheet. An evaluation kit* (EV kit) for the MAX6955

is available.

Fu n c t io n a l Dia g ra m

*Future product—contact factory for availability.

Ap p lic a t io n s

P0 TO P4

GPIO

AND KEY-SCAN

CONTROL

Set-Top Boxes

Panel Meters

White Goods

Automotive

Bar Graph Displays

Audio/Video Equipment

PWM

BRIGHTNESS

CONTROL

CURRENT

SOURCE

ISET

O0 TO O23

LED

DRIVERS

DIGIT

MULTIPLEXER

OSC

Ord e rin g In fo rm a t io n

DIVIDER/

COUNTER

NETWORK

OSC_OUT

PART

TEMP RANGE

-40°C to +125°C

PIN-PACKAGE

36 SSOP

CHARACTER

GENERATOR

ROM

MAX6954AAX

MAX6954APL

MAX6954

40 PDIP

BLINK

CONTROL

BLINK

Pin Configurations and Typical Operating Circuits appear

at end of data sheet.

CONFIGURATION

RAM

SPI and QSPI are trademarks of Motorola, Inc.

MICROWIRE is a trademark of National Semiconductor Corp.

CLK

4-WIRE SERIAL INTERFACE

DIN

DOUT

________________________________________________________________ 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.

12 3 4 5 6 7...38

中文翻译

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MAX6954AAX 替代型号

型号	品牌	替代类型	描述	数据表
MAX6954AAX+	MAXIM	类似代替	LED Driver, 24-Segment, CMOS, PDSO36, SSOP-36

与MAX6954AAX相关器件

型号	品牌	获取价格	描述	数据表
MAX6954AAX+	MAXIM	获取价格	LED Driver, 24-Segment, CMOS, PDSO36, SSOP-36
MAX6954AAX-T	MAXIM	获取价格	LED Driver, 24-Segment, CMOS, PDSO36, SSOP-36
MAX6954APL	MAXIM	获取价格	4-Wire Interfaced, 2.7V to 5.5V LED Display Driver with I/O Expander and Key Scan
MAX6954ATL	MAXIM	获取价格	LED Driver, 24-Segment, CMOS, 6 X 6 MM, 0.80 MM HEIGHT, MO-220WJJD-2, TQFN-40
MAX6954ATL+	MAXIM	获取价格	4-Wire Interfaced, 2.7V to 5.5V LED Display Driver with I/O Expander and Key Scan
MAX6954ATL+T	MAXIM	获取价格	LED Driver, 24-Segment, CMOS, 6 X 6 MM, 0.80 MM HEIGHT, ROHS COMPLIANT, MO-220WJJD-2, TQFN
MAX6955	MAXIM	获取价格	2-Wire Interfaced, 2.7V to 5.5V LED Display Driver with I/O Expander and Key Scan
MAX6955	ADI	获取价格	2线接口、2.7V至5.5V LED显示驱动器，带有输入/输出扩展器及键扫描
MAX6955AAX	MAXIM	获取价格	2-Wire Interfaced, 2.7V to 5.5V LED Display Driver with I/O Expander and Key Scan
MAX6955AAX+	MAXIM	获取价格	LED Driver, 7-Segment, CMOS, PDSO36, 0.80 MM PITCH, SSOP-36

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