M48T35Y-70MH1 STMicroelectronics, M48T35Y-70MH1 Datasheet - Page 2

Real Time Clock Advanced Analog

M48T35Y-70MH1

Manufacturer Part Number
M48T35Y-70MH1
Description
Real Time Clock Advanced Analog
Manufacturer
STMicroelectronics
Datasheet

Specifications of M48T35Y-70MH1

Function
Clock, Calendar, NV Timekeeping RAM, Watchdog Timer, Battery Backup
Rtc Memory Size
32768 B
Supply Voltage (max)
5.5 V
Supply Voltage (min)
4.5 V
Maximum Operating Temperature
+ 70 C
Minimum Operating Temperature
0 C
Mounting Style
SMD/SMT
Rtc Bus Interface
Parallel
Package / Case
SOH
Time Format
HH:MM:SS
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

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Contents
Contents
1
2
3
4
5
6
7
8
9
2/28
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Operation modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.1
2.2
2.3
Clock operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.1
3.2
3.3
3.4
3.5
3.6
Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
DC and AC parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Part numbering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Environmental information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Setting the clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Century bit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
READ mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
WRITE mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Data retention mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Reading the clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Stopping and starting the oscillator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Calibrating the clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
V
CC
noise and negative going transients . . . . . . . . . . . . . . . . . . . . . . . . . 16
Doc ID 2611 Rev 9
M48T35, M48T35Y

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