M48T513V-80PL1 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

M48T513V-80PL1

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

STMicroelectronics 

M48T513Y, M48T513V

Table 11. TIMEKEEPER® Register Map

Data

Address

D7

D6

D5

D4

D3

D2

D1

D0

Fun ction/Ran ge

BCD Format

7FFF Fh

10 Years

Year

Year

00-99

7FFFEh

0

0

0

10 M

Month

Month

01-12

7FFFDh

0

0

10 Date

Date

Date

01-31

7FFFCh

0

FT

0

0

0

Day of Week

Day

01-07

7FFFBh

0

0

10 Hours

Hours (24 Hour Format)

Hours

00-23

7FFFAh

0

10 Minutes

Minutes

Minutes

00-59

7FFF9h ST

10 Seconds

Seconds

Seconds

00-59

7FFF8h W

R

S

Calibration

Control

7FFF7h WDS BMB4 BMB3 BMB2 BMB1 BMB0 RB1 RB0

Watchdog

7FFF6h AFE

0

ABE Al 10M

Alarm Month

A Month

01-12

7FFF5h RPT4 RPT5 Al 10 Date

Alarm Date

Al Date

01-31

7FFF4h RPT3 0

Al 10 Hours

Alarm Hours

A Hours

00-23

7FFF3h RPT2

Al 10 Minutes

Alarm Minutes

A Min

00-59

7FFF2h RPT1

Al 10 Seconds

Alarm Seconds

A Sec

00-59

7FFF1h

1000 Year

100 Year

Century

00-99

7FFF0h WDF AF

0

BL

Y

Y

Y

Y

Flag

Keys: S = SIGN Bit

FT = FREQUENCY TEST Bit

R = READ Bit

W = WRITE Bit

ST = STOP Bit

0 = Must be set to ’0’

Y = ’1’ or ’0‘

BL = Battery Low (Read only)

AF = Alarm Flag (Read only)

WDS = Watchdog Steering Bit

BMB0-BMB4 = Watchdog Multiplier Bits

RB0-RB1 = Watchdog Resolution Bits

AFE = Alarm Flag Enable

ABE = Alarm in Battery Back-up Mode Enable

RPT1-RPT5 = Alarm Repeat Mode Bits

WDF = Watchdog Flag (Read only)

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