DS3508

更新时间： 2024-09-27 04:15:15

品牌	Logo	应用领域
美信 - MAXIM		可编程只读存储器电动程控只读存储器电可擦编程只读存储器
页数	文件大小	规格书
14页	194K
描述
I2C, 8-Channel Gamma Buffer with EEPROM

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数据手册

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DS3508 数据手册

Rev 1; 3/08

I C, 8-Channel Gamma Buffer with EEPROM

General Description

Features

The DS3508 is a programmable 8-channel gamma volt-

age generator with one byte of on-chip EEPROM and

one byte of SRAM memory per channel. Each channel

is composed of an independent 8-bit DAC with an asso-

ciated EEPROM/SRAM pair. At power-up, nonvolatile

(NV) EEPROM gamma data is loaded into its corre-

sponding SRAM register that drives the associated 8-bit

DAC. An on-chip control register allows selectable con-

trol of writing to SRAM/EEPROM or SRAM only.

o 8-Bit Gamma DACs, 8 Channels

o 1 Byte EEPROM and 1 Byte SRAM per Channel

o Ultra-Low Power (2mA I , typ)

o 400kbps I C Interface

o 9.0V to 15.5V Analog Supply

o 2.7V to 5.5V Digital Supply

The DS3508 is designed for low-power operation and

o 20-Pin TSSOP Package

draws less than 2mA (typ) from the V

supply.

o Address Pin Allows Two DS3508s to Reside on

Programming occurs through an I C-compatible serial

interface with support for speeds up to 400kHz.

the Same I C Bus

Ordering Information

Applications

TFT-LCD Gamma Buffer

Industrial Controls

PART

TEMP RANGE

-45°C to +95°C

PIN-PACKAGE

20 TSSOP

DS3508E+

DS3508E+T&R

20 TSSOP

+Denotes a lead-free package.

T&R = Tape and reel.

Typical Operating Circuit

Pin Configuration

TOP VIEW

SCL

SDA

GND

15.0V

14.8V 8.0V

VHH VHM

19 GM1

18 GM2

17 GM3

16 GM4

15 GM5

14 GM6

13 GM7

12 GM8

11 N.C.

5.0V

SOURCE DRIVER

GM1

GM2

GM3

GM4

DS3508

VHH

VHM

VLM

VLL

SDA

SCL

LIQUID-CRYSTAL

DISPLAY

I C

DS3508

GM5

GM6

GM7

GM8

MASTER

GND

VLL VLM

0.2V 7.0V

N.C. 10

TSSOP

________________________________________________________________ Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

12 3 4 5 6 7...14

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