M41T00_08 STMICROELECTRONICS [STMicroelectronics], M41T00_08 Datasheet - Page 20

• Manufacturer Part Number: M41T00_08
• Description: Serial real-time clock
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

Table 9.
1. Valid for ambient operating temperature: T
2. STMicroelectronics recommends the RAYOVAC BR1225 or BR1632 (or equivalent)as the battery supply.
3. After switchover (V
4. For rechargeable backup, V
Table 10.
1. Externally supplied if using the SO8 package. STMicroelectronics recommends the KDS DT-38: 1TA/1TC252E127, Tuning
2. Load capacitors are integrated within the M41T00. Circuit board layout considerations for the 32.768 kHz crystal of
20/25
Symbol
V
Symbol
I
I
BAT
I
V
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.
V
I
CC1
CC2
V
BAT
I
LO
LI
OL
IH
IL
R
C
f
O
(2)
S
L
Input leakage current
Output leakage current
Supply current
RTC supply current (standby)
Input low voltage
Input high voltage
Output low voltage
Output low voltage (open drain)
Battery supply voltage
Battery supply current
DC characteristics
Crystal electrical characteristics
Resonant frequency
Series resistance
Load capacitance
SO
Parameter
), V
BAT
BAT
(min) can be 2.0 V for crystal with RS = 40 KΩ.
(max) may be considered V
Parameter
A
= –40 to 85 °C; V
(1)(2)
Switch frequency = 100 kHz
oscillator ON, V
SCL, SDA = V
T
A
0 V = V
Test condition
0 V = V
= 25 °C, V
I
OL
FT/OUT
CC
= 3.0 mA
CC
.
OUT
IN
= 2.0 to 5.5 V (except where otherwise noted).
= V
CC
CC
= V
BAT
– 0.3 V
CC
= 0 V
CC
(1)
= 3 V
Min
0.7 V
2.5
–0.3
Min
32.768
(3)
12.5
Typ
CC
Typ
0.8
Max
60
V
0.3V
CC
3.5
Max
300
0.4
5.5
±1
±1
70
1
+ 0.5
(4)
CC
Units
kHz
KΩ
pF
Unit
µA
µA
µA
µA
µA
V
V
V
V
V