STMicroelectronics M4T28-BR12SH
The M4Txx-BR12SH SNAPHAT® top is a detachable lithium power source for ST’s serial real-time clock and non-volatile TIMEKEEPER® surface-mount SOIC package (28- and 44-pin). The SNAPHAT top contains both the battery and crystal and is designed to be “snapped on” after the SOIC is surface mounted on the PC board.| Part No. | M4T28-BR12SH |
|---|---|
| Datasheet | M4T28-BR12SH Download |
| Manufacturer |  STMicroelectronics |
| Description | Real-time clock and TIMEKEEPER SNAPHAT battery |
| Buy | Stock & Price |
DESCRIPTION
Thus the two-piece solution prevents the battery and crystal from being exposed to the high temperatures of the surface-mount process.FEATURES
● Provides battery backup power for serial realtime clock, non-volatile TIMEKEEPER® and supervisor devices in the 28- or 44-pin SNAPHAT® SOIC package● Removable battery avoids heat associated with surface-mount process
● Snaps directly onto surface-mounted SNAPHAT SOIC
● Choice of battery capacities – M4T28-BR12SH = 48 mAh – M4T32-BR12SH = 120 mAh
● Keyed insertion to ensure proper assembly
● Removable for replacement and proper disposal
● Pb-free package
● Available in Ecopack® packages, tubes April 2025 This is information on a product in full production. DS5067 Rev 5 1/16 Contents Contents M4T28-BR12SH, M4T32-BR12SH 1 Device overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3 DC and AC parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
