M48T512Y-70PM1集成電路（IC）的實(shí)時(shí)時(shí)鐘規(guī)格書PDF中文資料

M48T512Y-70PM1屬于集成電路（IC）的實(shí)時(shí)時(shí)鐘。由意法半導(dǎo)體集團(tuán)制造生產(chǎn)的M48T512Y-70PM1實(shí)時(shí)時(shí)鐘實(shí)時(shí)時(shí)鐘 (RTC) 為幾乎所有需要保持精確時(shí)間的電子設(shè)備提供時(shí)間和/或日期信息。時(shí)鐘類型有二進(jìn)制計(jì)數(shù)器、時(shí)鐘/日歷/監(jiān)控器、歷時(shí)計(jì)時(shí)器、幻時(shí)鐘芯片、便攜式系統(tǒng)控制器、溫度記錄器、時(shí)間事件記錄器和計(jì)時(shí)器時(shí)鐘外設(shè)。其包含 2 B 至 2 MB 不等的存儲(chǔ)器，接口選項(xiàng)有 I2C、并行、串行、SPI、1 線式、2 線式、3 線式和 4 線式。

SUMMARY DESCRIPTION

The M48T512Y/V TIMEKEEPER? RAM is a 512Kb x 8 non-volatile static RAM and real time clock organized as 524,288 words by 8 bits. The special DIP package provides a fully integrated battery back-up memory and real time clock solution.

FEATURES SUMMARY

■ INTEGRATED ULTRA LOW POWER SRAM,

REAL TIME CLOCK, POWER-FAIL

CONTROL CIRCUIT, BATTERY, AND

CRYSTAL

■ BCD CODED YEAR, MONTH, DAY, DATE,

HOURS, MINUTES, AND SECONDS

■ AUTOMATIC POWER-FAIL CHIP

DESELECT and WRITE PROTECTION

■ WRITE PROTECT VOLTAGES:

(VPFD = Power-fail Deselect Voltage)

– M48T512Y: VCC = 4.5 to 5.5V

4.2V ≤ VPFD ≤ 4.5V

– M48T512V*: VCC = 3.0 to 3.6V

2.7V ≤ VPFD ≤ 3.0V

■ CONVENTIONAL SRAM OPERATION;

UNLIMITED WRITE CYCLES

■ SOFTWARE CONTROLLED CLOCK

CALIBRATION FOR HIGH ACCURACY

APPLICATIONS

■ 10 YEARS OF DATA RETENTION AND

CLOCK OPERATION IN THE ABSENCE OF

POWER

■ PIN AND FUNCTION COMPATIBLE WITH

INDUSTRY STANDARD 512K x 8 SRAMS

■ SELF-CONTAINED BATTERY AND

CRYSTAL IN DIP PACKAGE