位置:M48T86PC > M48T86PC详情

M48T86PC中文资料

厂家型号

M48T86PC

文件大小

163.39Kbytes

页面数量

23

功能描述

5V PC REAL TIME CLOCK

数据手册

原厂下载下载地址一下载地址二到原厂下载

生产厂商

STMICROELECTRONICS

M48T86PC数据手册规格书PDF详情

Description

The M48T86 is an industry standard real-time clock (RTC). The M48T86 is composed of a lithium energy source, quartz crystal, write protection circuitry, and a 128-byte RAM array.

This provides the user with a complete subsystem packaged in either a 24-pin DIP CAPHAT™ or 28-pin SNAPHAT® SOIC. Functions available to the user include a nonvolatile time-of-day clock, alarm interrupts, a one-hundred-year clock with programmable interrupts, square wave output, and 128 bytes of non-volatile static RAM.

The 24-pin, 600 mil DIP CAPHAT houses the M48T86 silicon with a quartz crystal and a long-life lithium button cell in a single package.

The 28-pin, 330 mil SOIC provides sockets with gold plated contacts at both ends for direct connection to a separate SNAPHAT® housing containing the battery and crystal. The unique design allows the SNAPHAT battery package to be mounted on top of the SOIC package after the completion of the surface mount process.

Insertion of the SNAPHAT housing after reflow prevents potential battery and crystal damage due to the high temperatures required for device surface-mounting. The SNAPHAT housing is keyed to prevent reverse insertion.

The SOIC and battery packages are shipped separately in plastic anti-static tubes or in tape & reel form.

For the 28-lead SOIC, the battery/crystal package part number is “M4T28-BR12SH” (see Table 20 on page 33).

Features

■ Drop-in replacement for PC computer clock/calendar

■ Counts seconds, minutes, hours, days, day of the week, date, month, and year with leap year compensation

■ Clock accuracy better than ±1 minute per month

■ Interfaced with software as 128 RAM locations:

– 14 bytes of clock and control registers

– 114 bytes of general purpose RAM

■ Selectable bus timing (Intel/Motorola)

■ Three interrupts are separately software maskable and testable

– Time-of-day alarm (once/second to once/day)

– Periodic rates from 122 µs to 500 ms

– End-of-clock update cycle

■ Programmable square wave output

■ 10 years of data retention and clock operation in the absence of power

■ Self-contained battery and crystal in the CAPHAT™ DIP package

■ Packaging includes a 28-lead SOIC and SNAPHAT® top (to be ordered separately)

■ SOIC package provides direct connection for a SNAPHAT top contains the battery and crystal

■ Pin and function compatible with bq3285/7A and DS12887

■ RoHS compliant

– Lead-free second level interconnect

M48T86PC产品属性

  • 类型

    描述

  • 型号

    M48T86PC

  • 制造商

    STMICROELECTRONICS

  • 制造商全称

    STMicroelectronics

  • 功能描述

    5V PC REAL TIME CLOCK

更新时间:2025-10-6 10:03:00
供应商 型号 品牌 批号 封装 库存 备注 价格
STMicroelectronics
24+
24-PCDIP,CAPHAT?
35200
一级代理/放心采购
STMicroelectronics
25+
24-DIP 模块(0.600 15.24mm)
9350
独立分销商 公司只做原装 诚心经营 免费试样正品保证
ST/意法
25+
DIP-24
32360
ST/意法全新特价M48T86PC1即刻询购立享优惠#长期有货
ST
24+
DIP-24
4000
原装原厂代理 可免费送样品
ST
24+
DIP
6525
绝对原装现货,价格低,欢迎询购!
ST
2024+
N/A
70000
柒号只做原装 现货价秒杀全网
ST
2025+
DIP-24
32560
原装优势绝对有货
ST(意法)
24+
N/A
8048
原厂可订货,技术支持,直接渠道。可签保供合同
ST
25+23+
N/A
22547
绝对原装正品现货,全新深圳原装进口现货
ST
23+
DIP
16900
正规渠道,只有原装!

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