M41ST84WMQ6E STMicroelectronics, M41ST84WMQ6E Datasheet - Page 29

• Manufacturer Part Number: M41ST84WMQ6E
• Description: IC RTC 3.0V 512BIT NVRAM 16SOIC
• Manufacturer: STMicroelectronics
• Type: Clock/Calendar/Supervisorr

Specifications of M41ST84WMQ6E

• Memory Size: 64B
• 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: 16-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-2802-5; M41ST84WMQ6

M41ST84W
Table 12.
1. Valid for ambient operating temperature: T
2. RSTIN internally pulled-up to V
3. Outputs deselected.
4. For rechargeable backup, V
5. For PFO and SQW pins (CMOS).
6. For IRQ/FT/OUT, RST pins (open drain).
Table 13.
1. Load capacitors are integrated within the M41ST84W. Circuit board layout considerations for the 32.768 kHz crystal of
2. STMicroelectronics recommends the KDS DT-38: 1TA/1TC252E127, tuning fork type (thru-hole) or the DMX-26S:
I
V
Sym
V
I
V
I
I
V
V
I
LO
V
V
CC1
CC2
LI
V
BAT
PFD
minimum trace lengths and isolation from RF generating signals should be taken into account.
1TJS125FH2A212, (SMD) quartz crystal for industrial temperature operations. KDS can be contacted at
http://www.kds.info/index_en.htm for further information on this crystal type.
BAT
OH
PFI
OL
SO
Symbol
(2)
IH
IL
(3)
R
C
f
0
S
L
Battery current OSC ON
Battery current OSC OFF
Supply current
Supply current (standby)
Input leakage current
Input leakage current (PFI)
Output leakage current
Input high voltage
Input low voltage
Battery voltage
Output high voltage
Output low voltage
Output low voltage (open drain)
Pull-up supply voltage (open
drain)
Power fail deselect
PFI input threshold
PFI hysteresis
Battery backup switchover
DC characteristics
Crystal electrical characteristics (externally supplied)
Resonant frequency
Series resistance
Load capacitance
Parameter
BAT
(5)
CC
(max) may be considered V
Parameter
through 100 KΩ resistor. WDI internally pulled-down to V
(6)
A
= –40 to 85°C; V
(1)(2)
SCL, SDA = V
Doc ID 7530 Rev 9
T
A
RST, IRQ/FT/OUT
Test condition
0V ≤ V
= 25°C, V
0V ≤ V
or V
I
V
OH
I
f = 400 kHz
I
OL
V
CC
PFI Rising
OL
BAT
CC
SS
= –1.0mA
= 3.0mA
CC
= 3 V(W)
= 10mA
OUT
.
IN
+ 0.3 V
= 3 V
= 2.7 to 3.6 V (except where noted).
≤ V
CC
CC
≤ V
CC
= 0 V,
– 0.3 V
CC
(1)
32.768
12.5
Typ
0.7V
1.225
–0.3
2.55
Min
–25
2.5
2.4
CC
Min
-
-
-
SS
M41ST84W
through 100 KΩ resistor.
1.250
DC and AC parameters
2.60
Typ
400
2.5
3.0
50
20
2
Max
50
V
0.3V
CC
1.275
3.5
Max
0.75
0.50
2.70
500
0.4
0.4
3.6
±1
25
±1
70
+ 0.3
(4)
CC
Unit
kHz
kΩ
pF
Unit
29/36
mA
mA
mV
nA
nA
µA
nA
µA
V
V
V
V
V
V
V
V
V
V