Datasheet > M48ST59W-70MH6

M48ST59W-70MH6

更新时间： 2024-11-13 20:05:51

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		/
页数	文件大小	规格书
29页	156K
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数据手册

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M48ST59W-70MH6 数据手册

M48ST59W*

3.0V, 64 Kbit (8 Kbit x 8) SUPERVISORY TIMEKEEPER SRAM

PRELIMINARY DATA

FEATURES SUMMARY

■ 2.7V TO 3.6V OPERATING VOLTAGE

Figure 1. 44-pin SOIC Package

■ INTEGRATED ULTRA-LOW POWER SRAM,

REAL TIME CLOCK (RTC), POWER-FAIL

CONTROL CIRCUIT, CRYSTAL, and

BATTERY

SNAPHAT (SH)

Battery & Crystal

■ 1.25V REFERENCE (FOR PFI/PFO)

■ AUTOMATIC POWER-FAIL CHIP DESELECT

and WRITE PROTECTION

■ WRITE PROTECT VOLTAGES

= Power-fail Deselect Voltage:

PFD

– M48ST59W: V = 2.7 to 3.6V

2.50V ≤ V_PFD≤ 2.70V

■ MICROPROCESSOR POWER-ON RESET

(Valid even during battery back-up mode)

SOH44 (MH)

■ PROGRAMMABLE ALARM and INTERRUPT

FUNCTION

(Valid even during battery back-up mode)

■ BYTEWIDE , RAM-LIKE CLOCK ACCESS

■ BCD CODED YEAR, MONTH, DAY, DATE,

HOURS, MINUTES, and SECONDS

■ FREQUENCY TEST OUTPUT FOR RTC

CALIBRATION

■ BATTERY LOW FLAG

■ PROGRAMMABLE t

REC

■ PACKAGING INCLUDESA44-LEAD SOIC and

SNAPHAT TOP (to be ordered separately)

■ SOIC PACKAGE PROVIDES DIRECT

CONNECTION FOR A SNAPHAT TOP WHICH

CONTAINS THE BATTERY and CRYSTAL

* Contact Local Sales Office

May 2002

1/29

This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice.

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