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. Thus the two-piece solution prevents the battery and crystal from being exposed to the high temperatures of the surface-mount process.
Key Features
| Description | Version | Size |
|---|---|---|
| DS5067: Real-time clock and TIMEKEEPER® SNAPHAT® battery with crystal | 4.1 | 312 KB |
| Description | Version | Size |
|---|---|---|
| AN1012: Predicting the battery life and data retention period of NVRAMs and serial RTCs | 4.1 | 439 KB |
| Description | Version | Size |
|---|---|---|
| Serial real-time clock ICs | 1.0 | 827 KB |
| Part Number | Package | Packing Type | Unit Price (US$) * | Quantity | ECCN (EU) | ECCN (US) | Country of Origin |
|---|---|---|---|---|---|---|---|
| M4T32-BR12SH1 | 1632 SNAPHAT | Tube | - | - | NEC | EAR99 | MALAYSIA |
| M4T32-BR12SH6 | 1632 SNAPHAT | Tube | - | - | NEC | EAR99 | MALAYSIA |
| Part Number | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|
| M4T32-BR12SH1 | 1632 SNAPHAT | Industrial | Ecopack1 | md_rj-wspc-1632-wspc-snaphat_w1rjbr12sh3-wspc-(m4t32-br12sh6)-wspc-wcp-wspc-ver2_signed.pdf md_rj-wspc-1632-wspc-snaphat_w1rjbr12sh3-wspc-(m4t32-br12sh6)-wspc-wcp-wspc-ver2.xml |
| M4T32-BR12SH6 | 1632 SNAPHAT | Industrial | Ecopack1 | md_rj-wspc-1632-wspc-snaphat_w1rjbr12sh8-wspc-(m4t32-br12sh6)-wspc-wcp-wspc-ver2_signed.pdf md_rj-wspc-1632-wspc-snaphat_w1rjbr12sh8-wspc-(m4t32-br12sh6)-wspc-wcp-wspc-ver2.xml |
