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M41T11 Scheda tecnica (PDF) - STMicroelectronics

M41T11 Datasheet PDF - STMicroelectronics
Il numero della parte M41T11
Scarica  M41T11 Scarica

Grandezza file   231.6 Kbytes
Page   29 Pages
Produttore elettronici  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics
Spiegazioni elettronici Serial Real Time Clock with 56 Bytes of NVRAM

M41T11 Datasheet (PDF)

Go To PDF Page Scarica Scheda tecnica
M41T11 Datasheet PDF - STMicroelectronics

Il numero della parte M41T11
Scarica  M41T11 Click to download

Grandezza file   231.6 Kbytes
Page   29 Pages
Produttore elettronici  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics
Spiegazioni elettronici Serial Real Time Clock with 56 Bytes of NVRAM

M41T11 Scheda tecnica (HTML) - STMicroelectronics

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M41T11 Dettagli del prodotto

Description
The M41T11 is a low-power serial real-time clock (RTC) with 56 bytes of NVRAM. A built-in 32.768 kHz oscillator (external crystal controlled) and the first 8 bytes of the RAM are used for the clock/calendar function and are configured in binary-coded decimal (BCD) format.
Addresses and data are transferred serially via a two-line bidirectional bus. The built-in address register is incremented automatically after each write or read data byte.
The M41T11 clock has a built-in power sense circuit which detects power failures and automatically switches to the battery supply during power failures. The energy needed to sustain the RAM and clock operations can be supplied from a small lithium coin cell.
Typical data retention time is in excess of 5 years with a 50 mA/h, 3v
The 28-pin, 330 mil SOIC provides sockets with gold plated contacts at both ends for direct connection to a separate SNAPHAT housing containing the battery and crystal. The unique design allows the SNAPHAT battery package to be mounted on top of the SOIC package after the completion of the surface mount process. Insertion of the SNAPHAT housing after reflow prevents potential battery and crystal damage due to the high temperatures required for device surface-mounting. The SNAPHAT housing is keyed to prevent reverse insertion.

Features
■ Counters for seconds, minutes, hours, day, date, month, years and century
■ 32 KHz crystal oscillator integrating load capacitance (12.5 pF) providing exceptional oscillator stability and high crystal series resistance operation
■ Serial interface supports I2C bus (100 kHz protocol)
■ Ultra-low battery supply current of 0.8 µA (typ. at 3 V)
■ 2.0 to 5.5 V clock operating voltage
■ Automatic switchover and deselect circuitry
■ 56 bytes of general purpose RAM
■ Software clock calibration to compensate crystal deviation due to temperature
■ Automatic leap year compensation
■ Operating temperature of –40 to 85°C
■ Packaging includes a 28-lead SOIC and SNAPHAT® top (to be ordered separately; 3.3 V to 5.0 V supply voltage only)
■ RoHS compliant
   – Lead-free second level interconnect




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A proposito di STMicroelectronics


STMicroelectronics è un produttore di elettronica e semiconduttori multinazionali con sede a Ginevra, in Svizzera.

La società offre una vasta gamma di prodotti tra cui microcontrollori, sensori, amplificatori di potenza e circuiti integrati per varie applicazioni nei mercati automobilistici, industriali e di consumo.

Fondata nel 1987, STMicroelectronics ha operazioni in oltre 100 paesi ed è una delle più grandi società di semiconduttori al mondo.

*Queste informazioni sono solo a scopo informativo generale, non saremo responsabili per eventuali perdite o danni causati dalle informazioni di cui sopra.




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