M41ST87WMX6TR STMicroelectronics, M41ST87WMX6TR Datasheet - Page 20

• Manufacturer Part Number: M41ST87WMX6TR
• Description: IC SUPERVISOR RTC 160X8 28-SOIC
• Manufacturer: STMicroelectronics
• Type: Clock/Calendar/Supervisorr

Specifications of M41ST87WMX6TR

• Memory Size: 160B
• Time Format: HH:MM:SS:hh (24 hr)
• Date Format: YY-MM-DD-dd
• Interface: I²C, 2-Wire Serial
• Voltage - Supply: 2.7 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 28-SOIC, 28-SOH (8.48mm Width)
• Bus Type: Serial (2-Wire, I2C)
• Operating Supply Voltage (typ): 3.3V
• Operating Supply Voltage (max): 3.6V
• 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: 497-6457-2; M41ST87WMX6TR

Operating modes
Figure 14. Tamper detect output options
Figure 15. Basic tamper detect options
20/48
TCM
TCM
TCM
TCM
X
X
X
X
, TPM
, TPM
, TPM
, TPM
X
X
X
X
= 1,1
= 0,0
= 1,0
= 0,1
TP1
TP2
Configuration
V
V
TEB1
TEB2
CC
CC
User
(V
(V
OUT
OUT
)
)
NORMALLY CLOSED
NORMALLY CLOSED
CLR1
CLR2
NORMALLY OPEN
NORMALLY OPEN
CLR1
CLR2
TIE
TIE
TAMPER LO,
TAMPER LO,
TAMPER HI,
TAMPER HI,
EXT
EXT
1
2
Triggering Event
(other reset sources)
V
CC
(V
OUT
)
Configuration
TCM
CLR - Clear 128 bytes
internal RAM on tamper
Time stamp tamper
event (to RTC)
User
X
, TPM
X
IRQ - Interrupt the
processor on tamper
TP
RAM on tamper
RESET OUT
CLR
Tamper Event Output
CLRX
CLRX
TIE
- Clear external
X
EXT
AI07821
M41ST87Y, M41ST87W
IRQ - Interrupt the
processor on tamper
TP
RAM on tamper
CLR - Clear internal
RAM on tamper
Time stamp tamper
event
CLR
- Clear external
AI07818