Epson RTC-72421 B manual

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A good user manual

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Table of contents for the manual

  • Page 1

    M Q 162-0 3 [...]

  • Page 2

    N O T I C E • The material is subject to change without notice. • Any part of this ma[...]

  • Page 3

    RTC - 72421 / 72423 CONTENTS  Ov ervi ew ...........................................[...]

  • Page 4

    RTC - 72421 / 72423 Page - 1 MQ - 162 - 03 4-BIT PARALLEL INTERFACE REAL TIME CLOCK MODULE [...]

  • Page 5

    RTC - 72421 / 72423 Page - 2 MQ - 162 - 03  Terminal connections RTC-72421 RTC-7242[...]

  • Page 6

    RTC - 72421 / 72423 Page - 3 MQ - 162 - 03  Terminal functions Pin No. Signal RTC-7[...]

  • Page 7

    RTC - 72421 / 72423 Page - 4 MQ - 162 - 03  Characteristics 1. Abso lute ma ximu m ra[...]

  • Page 8

    RTC - 72421 / 72423 Page - 5 MQ - 162 - 03  Switching characteristics (AC characteristi[...]

  • Page 9

    RTC - 72421 / 72423 Page - 6 MQ - 162 - 03 2. W hen ALE is f ix ed at V DD W rite mode[...]

  • Page 10

    RTC - 72421 / 72423 Page - 7 MQ - 162 - 03  Registers 1. Register table Data Add[...]

  • Page 11

    RTC - 72421 / 72423 Page - 8 MQ - 162 - 03 4. Setting the fixed-period pulse output m ode [...]

  • Page 12

    RTC - 72421 / 72423 Page - 9 MQ - 162 - 03  Register description 1. Timing r eg ister[...]

  • Page 13

    RTC - 72421 / 72423 Page - 10 MQ - 162 - 03 2. CD reg ist er (control reg ist er D) (1[...]

  • Page 14

    RTC - 72421 / 72423 Page - 11 MQ - 162 - 03 IRQ FL AG bit *STD . P pin output 01 0 1 Int[...]

  • Page 15

    RTC - 72421 / 72423 Page - 12 MQ - 162 - 03 2.Fixed-period interrupt m ode (ITRPT/STND=1) [...]

  • Page 16

    RTC - 72421 / 72423 Page - 13 MQ - 162 - 03 4. CF reg ister (control reg ister F) (1) R[...]

  • Page 17

    RTC - 72421 / 72423 Page - 14 MQ - 162 - 03  Using the RTC-72421/RTC-72423 1. Power-o[...]

  • Page 18

    RTC - 72421 / 72423 Page - 15 MQ - 162 - 03 (A)Starting the count START Set the C F regi[...]

  • Page 19

    RTC - 72421 / 72423 Page - 16 MQ - 162 - 03 2. Read/write of S1 to W register s Use one[...]

  • Page 20

    RTC - 72421 / 72423 Page - 17 MQ - 162 - 03 4. Using t he CS 1 pin The RTC-72421/RTC-7[...]

  • Page 21

    RTC - 72421 / 72423 Page - 18 MQ - 162 - 03  Examples of connection to general-purpose m[...]

  • Page 22

    RTC - 72421 / 72423 Page - 19 MQ - 162 - 03  External dimensions 1. RTC-72421 23.1 M[...]

  • Page 23

    RTC - 72421 / 72423 Page - 20 MQ - 162 - 03  Reference data [Finding the frequenc y [...]

  • Page 24

    RTC - 72421 / 72423 Page - 21 MQ - 162 - 03  Application notes 1. Notes on handling [...]

  • Page 25

    Application Manual AME RIC A EPSON ELECTRONICS AMERICA , INC. HEA DQUA RTE[...]