M41ST87WSS6F STMicroelectronics, M41ST87WSS6F Datasheet - Page 24

• Manufacturer Part Number: M41ST87WSS6F
• Description: IC SUPERVISOR RTC/NVRAM 20-SSOP
• Manufacturer: STMicroelectronics
• Type: Clock/Calendar/Supervisorr

Specifications of M41ST87WSS6F

• 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: 20-SSOP
• Function: Clock, Timestamp, Timekeeper, Watchdog, Alarm, Calendar, Timer, Timer Interrupt
• Rtc Memory Size: 1280 bit
• Supply Voltage (max): 3.6 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
• Supply Current: 500 nA
• Clock Format: Ss
• Clock Ic Type: RTC
• Interface Type: I2C
• Memory Configuration: 128 X 8
• Supply Voltage Range: 2.7V To 3.6V
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-10616-2

Operating modes
Figure 18. Tamper current options
Figure 19. Tamper output timing (with CLR1
1. If connected to a negative charge pump device, this pin must be isolated from the charge pump by using both n-channel
2. If the device is in battery back-up; NOT on V
3. If TIE
4. If ABE = '1' and device is in battery backup mode.
24/54
V
V
and p-channel MOSFETs as illustrated in
in SOX28 package only on page
CC
CC
(V
(V
OUT
OUT
X
= '1.'
)
)
NORMALLY CLOSED
NORMALLY CLOSED
IRQ/OUT
NORMALLY OPEN
NORMALLY OPEN
TP CLR
V OUT
package only
E CON
TAMPER LO,
TAMPER LO,
TAMPER HI,
TAMPER HI,
RST
(1)
(3)
(TB Bit set)
TCHI/TCLO = 1
TCHI/TCLO = 1
Tamper
Event
22). V
OUT
t CLRD
V
Figure 20 on page
CC
is forced to GND during a tamper event when on V
CC
High-Z
High-Z
(V
(see
t CLR
OUT
Doc ID 9497 Rev 9
(2)
TCHI/TCLO = 0
TCHI/TCLO = 0
)
Section 2.6.9: RAM clear external (CLR1
EXT
25.
or CLR2
EXT
t rec
CONTINUOUS
CONTINUOUS
CONTINUOUS
CONTINUOUS
MONITORING
MONITORING
MONITORING
MONITORING
MONITORING
MONITORING
User Configuration
User Configuration
SAMPLED
SAMPLED
= '1') - available in SOX28 (MX)
TDS
TDS
TDS
TDS
(4)
X
X
X
X
EXT
= 0
= 1
= 0
= 1
CC
M41ST87Y, M41ST87W
and CLR2
.
Configuration
User
TCM
EXT
AI07820
X
AI07083
TP
, TPM
) - available
X
(TP1, TP2)
X