AC164140 Microchip Technology, AC164140 Datasheet - Page 16

• Manufacturer Part Number: AC164140
• Description: MCP79410 RTCC PICtail Plus Daughter Board Memory Kits
• Manufacturer: Microchip Technology
• Series: PICtail™ Plusr

Specifications of AC164140

• Main Purpose: Timing, Real Time Clock (RTC)
• Embedded: -
• Utilized Ic / Part: MCP79410
• Primary Attributes: For Use With Explorer 16, PICDEM PIC18 Explorer, XLP DEV Board, PICkit Serial Analyzer
• Secondary Attributes: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

MCP7941X
4.2.7
The MCP7941X family of RTCC devices feature a
power-fail time-stamp feature. This feature will save
the time at which V
use this feature, a V
the oscillator must also be running.
There are two separate sets of registers that are used
to record this information:
• The first set located at 0x18h through 0x1Bh are
• The second set of registers, located at 0x1Ch
The power-fail time-stamp registers are cleared when
the V
DS22266B-page 16
loaded at the time when V
operates on the V
bit 4) bit is also set at this time.
through 0x1Fh, are loaded at the time when V
is restored and the RTCC switches to V
BAT
bit is cleared in software.
POWER-FAIL TIME-STAMP
BAT
CC
BAT
. The V
crosses the V
supply must be present and
CC
BAT
fails and the RTCC
(register 0x03h
TRIP
CC
voltage. To
.
CC
Preliminary
 2011 Microchip Technology Inc.