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Numéro de référence | M48T86 | ||
Description | 5V PC REAL TIME CLOCK | ||
Fabricant | ST Microelectronics | ||
Logo | |||
1 Page
M48T86
5.0 V PC real-time clock
Not For New Design
Features
■ Drop-in replacement for PC computer
clock/calendar
■ Counts seconds, minutes, hours, days, day of
)the week, date, month, and year with leap year
t(scompensation
c■ Clock accuracy better than ±1 minute per
umonth
rod )■ Interfaced with software as 128 RAM locations:
P t(s– 14 bytes of clock and control registers
te c– 114 bytes of general purpose RAM
le u■ Selectable bus timing (Intel/Motorola)
so rod■ Three interrupts are separately software-
maskable and testable
b P– Time-of-day alarm (once/second to
- O teonce/day)
) le– Periodic rates from 122 µs to 500 ms
t(s so– End-of-clock update cycle
c b■ Programmable square wave output
du - O■ 10 years of data retention and clock operation
ro )in the absence of power
P t(s■ Self-contained battery and crystal in the
te cCAPHAT™ DIP package
le u■ Packaging includes a 28-lead SOIC and
so rodSNAPHAT® top (to be ordered separately)
■ SOIC package provides direct connection for a
b PSNAPHAT top contains the battery and crystal
O te■ Pin and function compatible with bq3285/7A
leand DS12887
so■ RoHS compliant
Ob– Lead-free second level interconnect
24
1
PCDIP24 (PC)
Battery/Crystal
CAPHAT
SNAPHAT (SH)
Battery/Crystal
28
1
SOH28 (MH)
December 2008
Rev 7
This is information on a product still in production but not recommended for new designs.
1/36
www.st.com
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Pages | Pages 30 | ||
Télécharger | [ M48T86 ] |
No | Description détaillée | Fabricant |
M48T86 | 5V PC REAL TIME CLOCK | ST Microelectronics |
US18650VTC5A | Lithium-Ion Battery | Sony |
TSPC106 | PCI Bus Bridge Memory Controller | ATMEL |
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