Rainbow-electronics MAX6900 Manual do Utilizador descarregar pdf

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.

General Description

The MAX6900, I

C™-bus-compatible real-time clock

(RTC) in a 6-pin TDFN package contains a real-time

clock/calendar and 31-byte

8-bit wide of static ran-

dom access memory (SRAM). The real-time clock/cal-

endar provides seconds, minutes, hours, day, date,

month, and year information. The end of the month date

is automatically adjusted for months with fewer than 31

days, including corrections for leap year up to the year

2100. The clock operates in either the 24hr or 12hr for-

mat with an AM/PM indicator.

Applications

Portable Instruments

Point-of-Sale Equipment

Intelligent Instruments

Battery-Powered Products

Features

♦ Real-Time Clock Counts Seconds, Minutes,

Hours, Date, Month, Day, and Year

♦ Leap Year Compensation Valid up to Year 2100

♦ Fast (400kHz) I

C-Bus-Compatible Interface from

2.0V to 5.5V

♦ 31

8 SRAM for Scratchpad Data Storage

♦ Uses Standard 32.768kHz, 12.5pF Load, Watch

Crystal

♦ Ultra-Low 225nA (typ) Timekeeping Current

♦ Single-Byte or Multiple-Byte (Burst Mode) Data

Transfer for Read or Write of Clock Registers or

SRAM

♦ 6-Pin 3mm x 3mm x 0.8mm TDFN Surface-Mount

Package

♦ No External Crystal Bias Resistors or Capacitors

Required

MAX6900

C-Compatible RTC in a TDFN

________________________________________________________________ Maxim Integrated Products 1

µC

RPU RPU

0.01µF

CRYSTAL

SCL

SDA

GND

RPU = t

bus

MAX6900

19-1942; Rev 3; 6/03

Typical Operating Circuit

GNDX2

1 6 SDA

5 SCL

MAX6900

TDFN

TOP VIEW

Pin Configuration

Ordering Information

PART TEMP RANGE

PIN-

PACKAGE

TOP

MARK

MAX6900ETT-T -40°C to +85°C 6 TDFN AEU

Related Real-Time Clock Products

PART SERIAL BUS SRAM

ALARM

FUNCTION

OUTPUT

FREQUENCY

PIN-PACKAGE

MAX6900 I

C compatible 31

8 ——6 TDFN

MAX6901 3-wire 31

8 Polled 32kHz 8 TDFN

MAX6902 SPI™ compatible 31

8 Polled — 8 TDFN

C is a trademark of Philips Corp. Purchase of I

C components

of Maxim Integrated Products, Inc., or one of its sublicensed

Associated Companies, conveys a license under the Philips I

Patent Rights to use these components in an I

C system, provid-

ed that the system conforms to the I

C Standard Specification

as defined by Philips.

SPI is a trademark of Motorola, Inc.

1 2 3 4 5 6 ... 16 17

C-Compatible RTC in a TDFN 1

Resumo do Conteúdo

Página 1 - C-Compatible RTC in a TDFN

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.G

Página 2

MAX6900I2C-Compatible RTC in a TDFN10 ______________________________________________________________________________________HEX REGISTER ADDRESS/DESCR

Página 3

MAX6900I2C-Compatible RTC in a TDFN______________________________________________________________________________________ 11Table 3. Data Transfer Sum

Página 4

MAX6900I2C-Compatible RTC in a TDFN12 ______________________________________________________________________________________of the Burst Read function

Página 5

MAX6900I2C-Compatible RTC in a TDFN______________________________________________________________________________________ 13PARAMETER SYMBOL MIN TYP M

Página 6

MAX690014 ______________________________________________________________________________________determine frequency stability, use the parabolic curve

Página 7

MAX6900I2C-Compatible RTC in a TDFN______________________________________________________________________________________ 15**********LAYER 2 LOCAL GR

Página 8

6, 8, &10L, QFN THIN.EPSPROPRIETARY INFORMATIONTITLE:APPROVALDOCUMENT CONTROL NO. REV.21PACKAGE OUTLINE, 6, 8 & 10L, TDFN, EXPOSED PAD, 3x3x0.

Página 9

I2C-Compatible RTC in a TDFNMAX6900Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim produ

Página 10

MAX6900I2C-Compatible RTC in a TDFN2 _______________________________________________________________________________________ABSOLUTE MAXIMUM RATINGSSt

Página 11

MAX6900I2C-Compatible RTC in a TDFN_______________________________________________________________________________________ 3AC ELECTRICAL CHARACTERIST

Página 12

Detailed Description The MAX6900 contains eight timekeeping registers,burst address registers, a control register, an on-chip32.768kHz oscillator circ

Página 13

days, including corrections for leap year up to the year2100.Crystal OscillatorThe MAX6900 uses an external, standard 12.5pF loadwatch crystal. No oth

Página 14

MAX6900I2C-Compatible RTC in a TDFN6 _______________________________________________________________________________________After the Start condition

Página 15

MAX6900I2C-Compatible RTC in a TDFN_______________________________________________________________________________________ 7An unlimited number of dat

Página 16

MAX6900I2C-Compatible RTC in a TDFN8 _______________________________________________________________________________________FUNCTION A7 A6 A5 A4 A3 A2

Página 17

MAX6900I2C-Compatible RTC in a TDFN_______________________________________________________________________________________ 9FUNCTION A7 A6 A5 A4 A3 A2

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Rainbow-electronics MAX6900 Manual do Utilizador

Consulte online ou descarregue Manual do Utilizador para Acessórios para Computador Rainbow-electronics MAX6900. Rainbow Electronics MAX6900 User Manual Manual do Utilizador

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