M41T256YMT7 STMicroelectronics, M41T256YMT7 Datasheet - Page 13

• Manufacturer Part Number: M41T256YMT7
• Description: Real Time Clock Serial 256K (32Kx8)
• Manufacturer: STMicroelectronics

Specifications of M41T256YMT7

• Function: Clock, Calendar
• 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: - 25 C
• Mounting Style: SMD/SMT
• Rtc Bus Interface: Serial
• Package / Case: SO-44
• Time Format: HH:MM:SS:hh
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Note:
Figure 7.
Note:
master receiver reads and acknowledges the new byte and the address pointer is
incremented to An+2.
This cycle of reading consecutive addresses will continue until the master receiver sends a
STOP condition to the slave transmitter (see
Address pointer will wrap around from maximum address to minimum address if
consecutive READ or WRITE cycles are performed.
An alternate READ mode may also be implemented whereby the master reads the
M41T256Y slave without first writing to the (volatile) address pointer. The first address that
is read is the last one stored in the pointer (see
Slave address location
The most significant bit is sent first.
START
1
1
SLAVE ADDRESS
0
1
0
Figure 8 on page
0
Figure 9 on page
0
R/W
A
AI00602
14).
14).
13/30