M41T00S_08 STMICROELECTRONICS [STMicroelectronics], M41T00S_08 Datasheet - Page 19

• Manufacturer Part Number: M41T00S_08
• Description: Serial access real-time clock
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

Table 7.
1. Valid for ambient operating temperature: T
2. For FT/OUT pin (open drain).
3. STMicroelectronics recommends the RAYOVAC BR1225 or BR1632 (or equivalent) as the battery supply.
4. For rechargeable backup, V
Table 8.
1. Externally supplied if using the SO8 package. STMicroelectronics recommends the KDS DT-38: 1TA/1TC252E127, Tuning
2. Load capacitors are integrated within the M41T00S. Circuit board layout considerations for the 32.768 kHz crystal of
3. For applications requiring backup supply operation below 2.5 V, R
Figure 13. Power down/up mode AC waveforms
V
Sym
I
I
BAT
I
V
V
I
CC1
CC2
V
BAT
I
LO
Fork Type (thru-hole) or the DMX-26S: 1TJS125FH2A212, (SMD) quartz crystal for industrial temperature operations. KDS
can be contacted at [e-mail] or http://www.kdsj.co.jp for further information on this crystal type.
minimum trace lengths and isolation from RF generating signals should be taken into account.
LI
OL
IH
IL
Sym
(3)
R
C
f
O
S
L
Input leakage current
Output leakage current
Supply current
Supply current (standby)
Input low voltage
Input high voltage
Output low voltage
Output low voltage (open drain)
Pull-up supply voltage (open drain)
Backup supply voltage
Battery supply current
V CC
V SO
SDA
SCL
DC characteristics
Crystal electrical characteristics
Resonant frequency
Series resistance
Load capacitance
Parameter
tPD
BAT
(max) may be considered to be V
Parameter
(2)
A
= –40 to 85°C; V
(1)(2)
Oscillator ON, V
Switch freq = 400 kHz
T
A
0V ≤ V
Test condition
0V ≤ V
= 25°C, V
≥ V
≤ V
I
DON'T CARE
I
SCL = 0Hz
OL
OL
All Inputs
FT/OUT
CC
SS
= 3.0mA
= 10mA
OUT
CC
IN
+ 0.2 V
– 0.2 V
= 2.7 to 5.5 V (except where noted).
CC
≤ V
CC
S
≤ V
BAT
(max) should be considered 40 kΩ.
.
= 0 V
CC
(1)
CC
= 3 V
Min
0.7V
–0.3
Min
2.0
CC
32.768
12.5
Typ
Typ
0.6
trec
V
AI00596
0.3V
60
Max
CC
3.5
Max
300
0.4
0.4
5.5
±1
±1
70
(3)
1
+ 0.3
(4)
CC
Units
kHz
kΩ
Unit
pF
19/26
μA
μA
μA
μA
µA
V
V
V
V
V
V