M41T94MH6F STMicroelectronics, M41T94MH6F Datasheet - Page 16

• Manufacturer Part Number: M41T94MH6F
• Description: IC RTC SPI SRAM SER 64X8 28-SOIC
• Manufacturer: STMicroelectronics
• Type: Clock/Calendar/Alarmr

Specifications of M41T94MH6F

• Memory Size: 44B
• Time Format: HH:MM:SS:hh (24 hr)
• Date Format: YY-MM-DD-dd
• Interface: SPI, 3-Wire Serial
• Voltage - Supply: 2.7 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 28-SOIC, 28-SOH (8.48mm Width)
• Bus Type: Serial (SPI)
• User Ram: 64Byte
• Operating Supply Voltage (typ): 3.3/5V
• Package Type: SOH
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 2.7V
• Operating Temperature Classification: Industrial
• Operating Temperature (max): 85C
• Operating Temperature (min): -40C
• Pin Count: 28
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-5372-2; M41T94MH6F

Operation
Figure 9.
Figure 10. Write mode sequence
16/41
E
SCL
SDO
E
SCL
SDO
SDI
SDI
W/R BIT
W/R BIT
Read mode sequence
MSB
MSB
7
7
0
0
HIGH IMPEDANCE
6
6
1
1
5
5
7 BIT ADDRESS
2
2
7 BIT ADDR
4
4
3
3
3
3
4
4
2
2
5
5
1
1
6
6
0
0
7
7
MSB
MSB
7
7
8
8
6
HIGH IMPEDANCE
6
9
9
5
10
5
DATA BYTE
DATA OUT
4
(BYTE 1)
4
3
12 13 14 15 16 17
3
2
2
1
1
0
15
0
MSB
7
7
6
5
DATA OUT
(BYTE 2)
4
3
2
1
22
0
AI04636
AI04635
M41T94