M41T315V-85MH6E STMicroelectronics, M41T315V-85MH6E Datasheet - Page 21

• Manufacturer Part Number: M41T315V-85MH6E
• Description: IC PHANTOM RTC SUPER 85NS 28SOIC
• Manufacturer: STMicroelectronics
• Type: Phantom Time Chipr

Specifications of M41T315V-85MH6E

• Memory Size: 8B
• Time Format: HH:MM:SS (12/24 hr)
• Date Format: YY-MM-DD-dd
• Interface: Serial
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 28-SOIC, 28-SOH (8.48mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 497-2817-5; M41T315V-85MH6

Table 10.
1. These values are externally supplied. STMicroelectronics recommends the KDS DT-38:
2. Load capacitors are integrated within the M41T315Y/V/W. Circuit board layout considerations for the
Figure 11. Power down/up mode AC waveforms
Table 11.
1. Valid for ambient operating temperature: TA = –40 to 85°C; VCC = 4.5 to 5.5V or 2.7 to 3.6V (except
2. Measured at 25°C.
3. Measured with load shown in
4. Input pulse rise and fall times equal 10ns
Symbol
Symbol
t
PD
1TA/1TC252E127, Tuning Fork Type (thruhole) or the DMX-26S: 1TJS125FH2A212, (SMD) quartz crystal
for industrial temperature operations. KDS can be contacted at kouhou@ kdsj.co.jp or
http://www.kdsj.co.jp for further information on this crystal type.
32.768kHz crystal of minimum trace lengths and isolation from RF generating signals should be taken into
account.
where noted).
t
V PFD (max)
REC
R
t
t
C
V PFD (min)
f
t
t
FB
PF
(3)(4)
O
R
F
S
L
CEO
V CC
V SO
CEI
Resonant frequency
Series resistance
Load capacitance
V
V
V
V
CEI high to power-fail
CEI propagation delay
Crystal electrical characteristics (externally supplied)
Power down/up trip points DC characteristics
PFD
PFD
PFD
PFD
(max) to CEI low
(max) to V
(min) to V
(min) to V
tPD
Parameter
SO
PFD
PFD
Figure 10 on page
Parameter
(1)(2)
V
(max) V
CC
(min) V
fall time
tPF
CC
CC
(1)(2)
V BAT
tF
fall time
rise time
tFB
19.
M41T315V/W
M41T315Y
0.2V
Min
DON’T CARE
32.768
12.5
Typ
V BAT
Min
300
1.5
10
0
0
0.2V
Max
2.5
10
15
Max
60
tR
tREC
tPD
Unit
ms
µs
µs
µs
µs
ns
ns
AI04257
Unit
kHz
kΩ
pF
21/30