M41T94MH6E STMicroelectronics, M41T94MH6E Datasheet - Page 9

• Manufacturer Part Number: M41T94MH6E
• Description: IC RTC SRAM SERIAL 512BIT 28SOIC
• Manufacturer: STMicroelectronics
• Type: Clock/Calendar/Alarmr

Specifications of M41T94MH6E

• 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)
• Function: Clock/Calendar/Alarm/Timer Interrupt
• Rtc Memory Size: 64 Byte
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 2.7 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Rtc Bus Interface: Serial (SPI)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-2823-5; M41T94MH6

M41T94
Figure 4.
1. Open drain output
Figure 5.
1. CPOL (clock polarity) and CPHA (clock phase) are bits that may be set in the SPI control register of the MCU.
Crystal
RSTIN1
RSTIN2
SDO
V CC
SCL
WDI
SDI
CS3
Block diagram
Hardware hookup
E
SPI Interface with
(CPOL, CPHA) (1) =
('0','0') or ('1','1')
(ST6, ST7, ST9,
ST10, Others)
V BAT
Master
CS2
CS1
OSCILLATOR
INTERFACE
32KHz
Q
D
C
SPI
V PFD = 4.4V
V SO = 2.5V
V BL = 2.5V
(2.65V if THS = V
C
E
COMPARE
COMPARE
COMPARE
M41T94
Q
D
SS
)
REAL TIME CLOCK
& CALIBRATION
SQUARE WAVE
RTC w/ALARM
WATCHDOG
CALENDAR
USER RAM
44 BYTES
POR
C
E
XXXXX
Q
BL
D
AF
WDF
C
E
XXXXX
Q
IRQ/FT/OUT
SQW
RST (1)
D
Description
AI03686
AI04785
(1)
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