M41T94MQ6TR STMicroelectronics, M41T94MQ6TR Datasheet - Page 22

• Manufacturer Part Number: M41T94MQ6TR
• Description: Real Time Clock Advanced Analog
• Manufacturer: STMicroelectronics

Specifications of M41T94MQ6TR

• Function: Clock, Calendar, Alarm, Timer Interrupt
• Rtc Memory Size: 64 B
• 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
• Package / Case: SOIC-16
• Time Format: HH:MM:SS:hh
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Clock operations
4.6
4.7
22/41
Table 6.
Power-on reset
The M41T94 continuously monitors V
the RST pulls low (open drain) and remains low on power-up for t
(max). The RST pin is an open drain output and an appropriate pull-up resistor should be
chosen to control rise time.
Reset inputs (RSTIN1 & RSTIN2)
The M41T94 provides two independent inputs which can generate an output reset. The
duration and function of these resets is identical to a reset generated by a power cycle.
Table 7 on page 23
function. Pulses shorter than t
and RSTIN2 are each internally pulled up to V
RS3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
Square wave output frequency
and
RS2
Square wave bits
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
Figure 13 on page 23
RLRH1
RS1
and t
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
CC
. When V
RLRH2
CC
illustrate the AC reset characteristics of this
will not generate a reset condition. RSTIN1
CC
through a 100 k resistor.
RS0
falls to the power fail detect trip point,
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Frequency
REC
32.768
8.192
4.096
2.048
1.024
None
512
256
128
64
32
16
8
4
2
1
after V
Square wave
CC
passes V
Units
kHz
kHz
kHz
kHz
kHz
Hz
Hz
Hz
Hz
Hz
Hz
Hz
Hz
Hz
Hz
M41T94
–
PFD