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PDF M41T0DS6E Data sheet ( Hoja de datos )
| Número de pieza | M41T0DS6E | |
| Descripción | SERIAL REAL-TIME CLOCK | |
| Fabricantes | ST Microelectronics | |
| Logotipo |  |
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M41T0
SERIAL REAL-TIME CLOCK
FEATURES SUMMARY
■ 2.0 TO 5.5V CLOCK OPERATING VOLTAGE
■ COUNTERS FOR SECONDS, MINUTES,
HOURS, DAY, DATE, MONTH, YEARS, and
CENTURY
■ YEAR 2000 COMPLIANT
■ I2C BUS COMPATIBLE (400kHz)
■ LOW OPERATING CURRENT OF 130µA
■ OPERATING TEMPERATURE OF –40 TO
85°C
■ AUTOMATIC LEAP YEAR COMPENSATION
■ SPECIAL SOFTWARE PROGRAMMABLE
OUTPUT
■ OSCILLATOR STOP DETECTION
Figure 1. 8-pin SOIC Packages
8
1
SO8 (M)
TSSOP8 3x3 (DS)
July 2004
1/20
1 page  
Figure 4. Block Diagram
OSCI
OSCO
OUT
OSCILLATOR
32.768 kHz
VCC
VSS
SCL
SDA
SERIAL
BUS
INTERFACE
M41T0
DIVIDER
CONTROL
LOGIC
ADDRESS
REGISTER
1 Hz
SECONDS
MINUTES
CENTURY/HOURS
DAY
DATE
MONTH
YEAR
CONTROL
AI07030
5/20
5 Page 
M41T0
Table 7. AC Characteristics
Symbol
Parameter(1)
Min Typ Max
fSCL SCL Clock Frequency
0 400
tLOW
Clock Low Period
1.3
tHIGH Clock High Period
600
tR SDA and SCL Rise Time
300
tF SDA and SCL Fall Time
300
tHD:STA
START Condition Hold Time
(after this period the first clock pulse is generated)
600
tSU:STA
START Condition Setup Time
(only relevant for a repeated start condition)
600
tSU:DAT Data Setup Time
100
tHD:DAT(2) Data Hold Time
0
tSU:STO STOP Condition Setup Time
600
tBUF Time the bus must be free before a new transmission can start 1.3
Note: 1. Valid for Ambient Operating Temperature: TA = –40 to 85°C; VCC = 2.0 to 5.5V (except where noted).
2. Transmitter must internally provide a hold time to bridge the undefined region (300ns max.) of the falling edge of SCL.
Unit
kHz
µs
ns
ns
ns
ns
ns
ns
µs
ns
µs
11/20
11 Page | ||
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