M48T513Y-80PL1 查看數據表（PDF） - STMicroelectronics

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M48T513Y-80PL1

5.0 or 3.3V, 4 Mbit (512 Kbit x 8) TIMEKEEPER® SRAM

STMicroelectronics 

M48T513Y*

M48T513V*

5.0 or 3.3V, 4 Mbit (512 Kbit x 8) TIMEKEEPER® SRAM

FEATURES SUMMARY

s INTEGRATED ULTRA LOW POWER SRAM,

REAL TIME CLOCK, POWER-FAIL CONTROL

CIRCUIT, BATTERY, and CRYSTAL

s YEAR 2000 COMPLIANT

s BCD CODED CENTURY, YEAR, MONTH,

DAY, DATE, HOURS, MINUTES, and

SECONDS

s BATTERY LOW WARNING FLAG

s AUTOMATIC POWER-FAIL CHIP DESELECT

and WRITE PROTECTION

s TWO WRITE PROTECT VOLTAGES:

(VPFD = Power-fail Deselect Voltage)

– M48T513Y: VCC = 4.5 to 5.5V

4.2V ≤ VPFD ≤ 4.5V

– M48T513V: VCC = 3.0 to 3.6V

2.7V ≤ VPFD ≤ 3.0V

s CONVENTIONAL SRAM OPERATION;

UNLIMITED WRITE CYCLES

s SOFTWARE CONTROLLED CLOCK

CALIBRATION FOR HIGH ACCURACY

APPLICATIONS

s 10 YEARS OF DATA RETENTION and CLOCK

OPERATION IN THE ABSENCE OF POWER

s SELF CONTAINED BATTERY and CRYSTAL

IN DIP PACKAGE

s MICROPROCESSOR POWER-ON RESET

(Valid even during battery back-up mode)

s PROGRAMMABLE ALARM OUTPUT ACTIVE

IN BATTERY BACK-UP MODE

s SURFACE-MOUNT (SMT) SOLUTION (Figure

2) INCLUDES A 44-PIN SOIC and A 32-LEAD

TSOP (SNAPHAT® Top to be ordered

separately)

s SOIC PACKAGE PROVIDES DIRECT

CONNECTION FOR A SNAPHAT TOP WHICH

CONTAINS THE BATTERY and CRYSTAL

s SNAPHAT HOUSING (BATTERY/CRYSTAL)

IS REPLACEABLE

* Contact Local Sales Office

Figure 1. 36-pin Module

36

1

PLDIP36 (PL)

Module

Figure 2. Surface-Mount (SMT) Solution

SNAPHAT (SH)

Crystal / Battery

SOH44 (M)

32

1

TSOP II 32 (NC)

(10 x 20mm)

May 2002

1/31

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