M41ST87WSS6F STMicroelectronics, M41ST87WSS6F Datasheet - Page 44

• 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

DC and AC parameters
Table 17.
44/54
I
V
OUT1
V
I
V
I
V
I
V
Sym
BAT
V
OHB
I
I
I
LO
OUT2
V
OH
V
CC1
CC2
LI
V
PFI1,
PFD
PFI2
BAT
OL
IH
(3)
IL
(4)
(2)
(6)
(7)
(5)
Battery current
OSC ON
Battery current
OSC OFF
Supply current
Supply current
(standby)
Input leakage
current
Input leakage
current (PFI)
Output leakage
current
V
(active)
V
(battery backup)
Input high
voltage
Input low voltage
Battery voltage
Output high
voltage
Pull-up supply
voltage
(open drain)
V
backup)
Output low
voltage
Output low
voltage
(open drain)
Power fail
deselect
PFI input
threshold
PFI hysteresis
OUT
OUT
OH
Parameter
DC characteristics
(battery
current
current
(9)
SCL, SDA ≥ V
T
V
V
IRQ/OUT, RST, F
A
OUT2
I
Test condition
OUT1
OUT2
= 25 °C, V
0V ≤ V
0V ≤ V
I
V
V
OH
I
I
f = 400 kHz
OL
THS bit = 0
THS bit = 1
CC
V
OL
CC
PFI rising
BAT
> V
> V
= –1.0 mA
= –1.0 µA
= 3.0 mA
= 10 mA
= 3 V (W)
= 5 V (Y)
IN
IN
BAT
= 3 V
CC
≤ V
≤ V
CC
CC
– 0.3 V
– 0.3 V
– 0.3 V
CC
CC
= 0 V,
(1)
(8)
32k
Doc ID 9497 Rev 9
0.7V
1.225
–0.3
4.20
4.50
Min
–25
2.5
2.4
CC
M41ST87Y
1.250
4.35
4.60
Typ
500
3.0
2.9
50
20
2
V
0.3V
CC
1.275
Max
4.50
4.75
V
700
175
100
1.4
5.5
0.4
0.4
±1
25
±1
70
1
CC
+ 0.3 0.7V
CC
1.225
–0.3
2.55
2.80
Min
–25
2.5
2.4
CC
M41ST87Y, M41ST87W
M41ST87W
1.250
2.62
2.88
Typ
500
3.0
2.9
50
20
2
V
0.3V
CC
1.275
Max
0.75
0.50
2.70
3.00
V
700
100
100
3.6
0.4
0.4
±1
25
±1
70
CC
+ 0.3
CC
Unit
mA
mA
mA
mV
nA
nA
µA
nA
µA
µA
V
V
V
V
V
V
V
V
V
V
V
V