M48T37V-10MH6 STMicroelectronics, M48T37V-10MH6 Datasheet - Page 19

Real Time Clock 256K (32Kx8) 100ns

M48T37V-10MH6

Manufacturer Part Number
M48T37V-10MH6
Description
Real Time Clock 256K (32Kx8) 100ns
Manufacturer
STMicroelectronics
Datasheet

Specifications of M48T37V-10MH6

Function
Clock, Calendar, NV Timekeeping RAM, Watchdog Timer, Battery Backup, Alarm
Rtc Memory Size
32768 B
Supply Voltage (max)
3.6 V
Supply Voltage (min)
3 V
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Mounting Style
SMD/SMT
Rtc Bus Interface
Parallel
Package / Case
SOIC-44
Time Format
HH:MM:SS
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

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Quantity
Price
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Manufacturer:
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M48T37Y, M48T37V
one volt. These negative spikes can cause data corruption in the SRAM while in battery
backup mode. To protect from these voltage spikes, it is recommended to connect a
Schottky diode from V
1N5817 is recommended for through hole and MBRS120T3 is recommended for surface
mount.
Figure 9.
Figure 10. Crystal accuracy across temperature
Figure 11. Clock calibration
NORMAL
POSITIVE
CALIBRATION
NEGATIVE
CALIBRATION
Frequency (ppm)
–100
–120
–140
–160
–20
–40
–60
–80
20
0
–40
Supply voltage protection
–30
CC
–20
to V
–10
SS
V CC
Doc ID 7019 Rev 9
(cathode connected to V
0.1µF
0
10
Temperature °C
ΔF = -0.038
F
20
T
30
V CC
V SS
0
ppm
= 25 °C
C
2
DEVICE
CC
(T - T
40
, anode to V
0
)
2
50
± 10%
60
SS
Clock operations
). Schottky diode
70
80
AI00594B
AI02169
AI00999
19/30

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