MCP79401 datasheet(55/62 Pages) MICROCHIP

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 2011-2016 Microchip Technology Inc.

DS20005009F-page 55

MCP79400/MCP79401/MCP79402

APPENDIX A:

REVISION HISTORY

Revision A (04/2011)

Initial release of this document.

Revision B (08/2011)

Added Figure 1-2; Added Parameter D16 to Table 1-1;

Added Sections 2.3-2.5; Added Figure 4.1; Revised

Section 4.1.1; Revised Sections 4.2.4-4.2.6.

Revision C (12/2011)

Added DC/AC Characteristics Charts.

Revision D (01/2014)

Updated overall content for improved clarity; Added

detailed descriptions of registers; Updated block

diagram and application schematic; Defined names for

all bits and registers, and renamed the bits shown in

Table 7-1

for

clarification;

Renamed

the

characteristics shown in Table 7-2 for clarification.

TABLE 7-1:

BIT NAME CHANGES

TABLE 7-2:

DC CHARACTERISTIC NAME CHANGES

Revision E (01/2015)

Updated Section 6.3; Updated “Product Identification

System” section.

Revision F (08/2016)

Added new OUI (54-10-EC) to list; Updated TDFN

package.

Old Bit Name

New Bit Name

OSCON

OSCRUN

VBAT

PWRFAIL

LPYR

SQWE

SQWEN

ALM0

ALM0EN

ALM1

ALM1EN

RS0

SQWFS0

RS1

SQWFS1

RS2

CRSTRIM

CALIBRATION

TRIMVAL<6:0>

ALM0POL

ALMPOL

ALM1POL

ALMPOL

ALM0C<2:0>

ALM0MSK<2:0>

ALM1C<2:0>

ALM1MSK<2:0>

Old Name

Old Symbol

New Name

New Symbol

Operating Current ID

ICC Read

EEPROM Operating Current

ICCEERD

ICC Write

ICCEEWR

Operating Current SRAM

ICC Read

SRAM/RTCC Register Operating Current

ICCREAD

ICC Write

ICCWRITE

Operating Current

IVCC

Timekeeping Current

ICCT

IBAT

Timekeeping Backup Current

IBATT

Standby Current

ICCS

VCC Data Retention Current (oscillator off)

ICCDAT

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