M41T11MH6 STMicroelectronics, M41T11MH6 Datasheet - Page 13

• Manufacturer Part Number: M41T11MH6
• Description: Real Time Clock Serial 512 (64x8)
• Manufacturer: STMicroelectronics

Specifications of M41T11MH6

• Function: Clock, Calendar, Timekeeper
• Rtc Memory Size: 64 B
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 2 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Rtc Bus Interface: Serial
• Package / Case: SO-28
• Time Format: HH:MM:SS
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

M41T11
2.3
2.4
Figure 11. Write mode sequence
BUS ACTIVITY:
MASTER
SDA LINE
BUS ACTIVITY:
Write mode
In this mode the master transmitter transmits to the M41T11 slave receiver. Bus protocol is
shown in
is placed on the bus and indicates to the addressed device that word address An will follow
and is to be written to the on-chip address pointer. The data word to be written to the
memory is strobed in next and the internal address pointer is incremented to the next
memory location within the RAM on the reception of an acknowledge clock. The M41T11
slave receiver will send an acknowledge clock to the master transmitter after it has received
the slave address and again after it has received the word address and each data byte.
Data retention mode
With valid V
cycles. Should the supply voltage decay, the M41T11 will automatically deselect, write
protecting itself when V
S
Figure
ADDRESS
CC
SLAVE
applied, the M41T11 can be accessed as described above with read or write
11. Following the START condition and slave address, a logic '0' (R/W = 0)
CC
ADDRESS (An)
falls (see
WORD
Figure
DATA n
15).
DATA n+1
DATA n+X
AI00591
Operation
P
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