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参数资料
| 型号： | RX-4591CF |
| 元件分类： | 时钟/数据恢复及定时提取 |
| 英文描述： | 0 TIMER(S), REAL TIME CLOCK, PDSO10 |
| 封装： | SON-10 |
| 文件页数： | 14/19页 |
| 文件大小： | 256K |
| 代理商： | RX-4591CF |
RX - 4591 CF
Page - 1
MQ - 402 - 01
Miniature Serial Interface RTC Module
RX - 4591 CF
Built-in 32.768 kHz crystal oscillator with frequency adjusted
Serial interface in 4 lines form
( possible to make it to 3 lines by wired-OR connecting DI and DO pins )
Alarm interrupt function for day of the week, day, hour, and minute
( /IRQ pin )
Timer interrupt function
( /IRQ pin )
Time update interrupt function
( secondminute, /AIRQ pin )
OE function 32.768 kHz output
( FOE, FOUT pins )
Automatic adjustment for leap year (supports from year 2000 to 2099)
Wide range of interface voltage between 1.6 V and 5.5 V
Wide range of clock (retained) voltage between 1.2 V and 5.5 V
Low current consumption at 0.3
A / 3 V ( Typ.)
Available as small package ( CF : SON10 pin PKG. )
1. Overview
This module is a real-time clock with serial interface in 4 lines form (or 3 lines form). It has a built-in crystal
oscillator. The module offers many functions such as Clock & Calendar circuitry with automatic leap year
adjustment, interval timer, time update interrupt, and other rich functions like 32.768 kHz output. Because it is
available in small package SON-22 pin in high density mounting, it is ideally suited for applications such as
mobile phone, handy terminals and other small electronic systems.
2. Block diagram
INTERRUPTS
CONTROLLER
ALARM
REGISTER
OSC
/ IRQ
BUS
INTERFACE
CIRCUIT
CLK
32.768 kHz
CONTROL
REGISTER
and
SYSTEM
CONTROLLER
DIVIDER
CLOCK
CE
FOUT
CONTROLLER
FOUT
D I
TIMER
REGISTER
and
CALENDAR
DO
FOE
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