M41T315W-65MH6TR ST Microelectronics, M41T315W-65MH6TR Datasheet - Page 17

• Manufacturer Part Number: M41T315W-65MH6TR
• Description: Serial Access Phantom RTC Supervisor
• Manufacturer: ST Microelectronics

Table 10. Crystal Electrical Characteristics (Externally Supplied)
Note: 1. These values are externally supplied. STMicroelectronics recommends the KDS DT-38: 1TA/1TC252E127, Tuning Fork Type (thru-
Note: 1. Load capacitors are integrated within the M41T315Y/V/W. Circuit board layout considerations for the 32.768kHz crystal of minimum
Figure 13. Power Down/Up Mode AC Waveforms
Table 11. Power Down/Up Trip Points DC Characteristics
Note: 1. Valid for Ambient Operating Temperature: T
Symbol
Symbol
t
PD
t
R
C
2. Measured at 25°C.
3. Measured with load shown in
4. Input pulse rise and fall times equal 10ns
f
REC
t
t
O
t
t
PF
FB
S
L
R
(3,4)
F
hole) or the DMX-26S: 1TJS125FH2A212, (SMD) quartz crystal for industrial temperature operations. KDS can be contacted at kou-
[e-mail] or http://www.kdsj.co.jp for further information on this crystal type.
trace lengths and isolation from RF generating signals should be taken into account.
V PFD (max)
V PFD (min)
Resonant Frequency
Series Resistance
Load Capacitance
CEO
V CC
V SO
V
V
V
V
CEI High to Power-Fail
CEI Propagation Delay
CEI
PFD
PFD
PFD
PFD
(max) to CEI low
(max) to V
(min) to V
(min) to V
tPD
Parameter
SO
PFD
PFD
Figure 12., page
V
(max) V
Parameter
CC
(min) V
Fall Time
(1,2)
CC
CC
A
= –40 to 85°C; V
15.
(1,2)
Fall Time
Rise Time
tPF
V BAT – 0.2V
tF
tFB
M41T315V/W
M41T315Y
CC
DON'T CARE
= 4.5 to 5.5V or 2.7 to 3.6V (except where noted).
Min
M41T315Y*, M41T315V, M41T315W
V BAT – 0.2V
Min
300
1.5
10
0
0
32.768
12.5
Typ
tR
Max
2.5
10
15
tREC
Max
60
tPD
AI04257
Unit
ms
ns
ns
s
s
s
s
Unit
kHz
k
pF
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