M41ST87WSS6F STMicroelectronics, M41ST87WSS6F Datasheet - Page 9

• 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

M41ST87Y, M41ST87W
Table 1.
1. Available in SSOP (SS) package only.
2. Available in SOX28 (MX) package only.
3. Open drain output.
4. Programmable output (open drain or full-CMOS).
5. Should be connected to V
XI
XO
E
EX
IRQ/OUT
PFI
PFI
PFO
PFO
RST
RSTIN1
RSTIN2
SCL
SDA
SQW/FT
WDI
V
V
V
F
TP1
TP2
TP
V
NF
NC
OUT
32k
CON
CC
SS
BAT
(1)
CLR
(2)
(5)
(1)
(5)
1
2
IN
IN
(3)
(2)
(3)
1
2
(2)
(4)
(4)
(2)
(2)
(4)
(3)
Signal names
SS
.
Oscillator input
Oscillator output
Conditioned chip enable output
External chip enable
Interrupt/out output (open drain)
Power fail input 1
Power fail input 2
Power fail output 1
Power fail output 2
Reset output (open drain)
Reset 1 input
Reset 2 input
Serial clock input
Serial data input/output
Square wave output/frequency test
Watchdog input
Supply voltage
Voltage output
Ground
32 kHz square wave output (open drain)
Tamper pin 1 input
Tamper pin 2 input
Tamper pin RAM clear
Positive battery pin input
No function
No connect
Doc ID 9497 Rev 9
Description
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