M41ST87WSS6F STMicroelectronics, M41ST87WSS6F Datasheet - Page 42

• 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

Maximum ratings
4
Table 14.
1. Reflow at peak temperature of 260 °C. The time above 255 °C must not exceed 30 seconds.
2. Reflow at peak temperature of 240 °C. The time above 235°C must not exceed 20 seconds.
Caution:
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Symbol
T
T
V
V
θ
P
STG
SLD
I
CC
O
JA
IO
D
Maximum ratings
Stressing the device above the rating listed in the absolute maximum ratings table may
cause permanent damage to the device. These are stress ratings only and operation of the
device at these or any other conditions above those indicated in the operating sections of
this specification is not implied. Exposure to absolute maximum rating conditions for
extended periods may affect device reliability.
Absolute maximum ratings
Negative undershoots below –0.3 V are not allowed on any pin while in the battery backup
mode.
Storage temperature (V
Lead solder temperature for 10 seconds
Input or output voltage
Supply voltage
Output current
Power dissipation
Thermal resistance, junction to ambient
CC
off, oscillator off)
Parameter
Doc ID 9497 Rev 9
SSOP20 (SS)
SSOP20 (SS)
SOX28 (MX)
SOX28 (MX)
M41ST87W
M41ST87Y
–0.3 to V
–55 to 125
–0.3 to 7.0
–0.3 to 4.6
Value
260
240
M41ST87Y, M41ST87W
83.0
20
1
(1)
(2)
CC
+0.3
°C/W
°C/W
Unit
mA
°C
°C
°C
W
V
V
V