MCP79400-I/MS datasheet, PDF - EEWORLD Datasheet

Datasheet> All Categories > The embedded processor and controller> Microcontrollers and processors> MCP79400-I/MS

MCP79400-I/MS: Descriptionreal time clock i2c GP rtcc 64b sram ID; CategoryThe embedded processor and controller Microcontrollers and processors; File Size1MB，62 Pages; ManufacturerMicrochip; Websitehttps://www.microchip.com; Environmental Compliance

Download Datasheet Parametric Compare View All

MCP79400-I/MS Overview

real time clock i2c GP rtcc 64b sram ID

MCP79400-I/MS Parametric

Parameter Name	Attribute value
Is it Rohs certified?	conform to
Maker	Microchip
Parts packaging code	MSOP
package instruction	MSOP-8
Contacts	8
Reach Compliance Code	compli
ECCN code	EAR99
Factory Lead Time	17 weeks
maximum clock frequency	0.4 MHz
External data bus width
Information access methods	I2C
interrupt capability	Y
JESD-30 code	S-PDSO-G8
JESD-609 code	e3
length	3 mm
Humidity sensitivity level	1
Number of terminals	8
Number of timers	1
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Package body material	PLASTIC/EPOXY
encapsulated code	TSSOP
Encapsulate equivalent code	TSSOP8,.19
Package shape	SQUARE
Package form	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)	260
power supply	2/5 V
Certification status	Not Qualified
Filter level	TS 16949
Maximum seat height	1.1 mm
Maximum supply voltage	5.5 V
Minimum supply voltage	1.8 V
Nominal supply voltage	2.5 V
surface mount	YES
technology	CMOS
Temperature level	INDUSTRIAL
Terminal surface	Matte Tin (Sn) - annealed
Terminal form	GULL WING
Terminal pitch	0.65 mm
Terminal location	DUAL
shortest time	SECONDS
Maximum time at peak reflow temperature	40
Volatile	NO
width	3 mm
uPs/uCs/peripheral integrated circuit type	TIMER, REAL TIME CLOCK

Preview

Download Datasheet

View All

MCP79400/MCP79401/MCP79402

Battery-Backed I

C™ Real-Time Clock/Calendar with

SRAM and Protected EEPROM

Device Selection Table

Part Number

MCP79400

MCP79401

MCP79402

Protected EEPROM

Unprogrammed

EUI-48

™

EUI-64

™

Operating Ranges:

• 2-Wire Serial Interface, I

C™ Compatible

- I

C clock rate up to 400 kHz

• Temperature Range:

- Industrial (I): -40°C to +85°C

Timekeeping Features:

• Real-Time Clock/Calendar (RTCC):

- Hours, Minutes, Seconds, Day of Week, Day,

Month, Year

- Leap year compensated to 2399

- 12/24 hour modes

• Oscillator for 32.768 kHz Crystals:

- Optimized for 6-9 pF crystals

• On-Chip Digital Trimming/Calibration:

- ±1 PPM resolution

- ±129 PPM

• Dual Programmable Alarms

• Versatile Output Pin:

- Clock output with selectable frequency

- Alarm output

- General purpose output

• Power-Fail Time-Stamp:

- Time logged on switchover to and from

Battery mode

Packages:

• 8-Lead SOIC, MSOP, TSSOP and 2x3 TDFN

General Description:

The MCP7940X Real-Time Clock/Calendar (RTCC)

tracks time using internal counters for hours, minutes,

seconds, days, months, years, and day of week.

Alarms can be configured on all counters up to and

including months. For usage and configuration, the

MCP7940X supports I

C communications up to 400

kHz.

The open drain, multi-functional output can be

configured to assert on an alarm match, to output a

selectable frequency square wave, or as a general

purpose output.

The MCP7940X is designed to operate using a 32.768

kHz tuning fork crystal with external crystal load

capacitors. On-chip digital trimming can be used to

adjust for frequency variance caused by crystal

tolerance and temperature.

SRAM and timekeeping circuitry are powered from the

back-up supply when main power is lost, allowing the

device to maintain accurate time and the SRAM

contents. The times when the device switches over to

the back-up supply and when primary power returns

are both logged by the power-fail time-stamp.

The MCP7940X features 64 bits of EEPROM which is

only writable after an unlock sequence, making it ideal

for storing a unique ID or other critical information. The

MCP79401 and MCP79402 are pre-programmed with

EUI-48 and EUI-64 addresses, respectively. Custom

programming is also available.

Low-Power Features:

• Wide Voltage Range:

- Operating voltage range of 1.8V to 5.5V

- Backup voltage range of 1.3V to 5.5V

• Low Typical Timekeeping Current:

- Operating from V

: 1.2 µA at 3.3V

- Operating from battery backup: 925 nA at

3.0V

• Automatic Switchover to Battery Backup

User Memory:

• 64-byte Battery-Backed SRAM

• 64-bit Protected EEPROM Area:

- Robust write unlock sequence

- EUI-48

™

MAC address (MCP79401)

- EUI-64

™

MAC address (MCP79402)

- Custom programming available

Package Types

SOIC, TSSOP, MSOP

TDFN

BAT

MFP

SCL

SDA

X1 1

X2 2

BAT

8 V

7 MFP

6 SCL

5 SDA



2011-2014 Microchip Technology Inc.

DS20005009D-page 1

MCP79400-I/MS Related Products

	MCP79400-I/MS	MCP79401-I/MNY	MCP79402-I/MNY	MCP79400-I/MNY
Description	real time clock i2c GP rtcc 64b sram ID	REAL TIME CLOCK, PDSO8, 2 X 3 MM, 0.75 MM WIDTH, ROHS COMPLIANT, PLASTIC, TDFN-8	REAL TIME CLOCK, PDSO8, 2 X 3 MM, 0.75 MM WIDTH, ROHS COMPLIANT, PLASTIC, TDFN-8	REAL TIME CLOCK, PDSO8, 2 X 3 MM, 0.75 MM WIDTH, ROHS COMPLIANT, PLASTIC, TDFN-8
Is it Rohs certified?	conform to	conform to	conform to	conform to
Maker	Microchip	Microchip	Microchip	Microchip
Parts packaging code	MSOP	DFN	DFN	DFN
package instruction	MSOP-8	HVSON, SOLCC8,.11,20	TDFN-8	TDFN-8
Contacts	8	8	8	8
Reach Compliance Code	compli	compliant	compliant	compliant
maximum clock frequency	0.4 MHz	0.4 MHz	0.4 MHz	0.4 MHz
Information access methods	I2C	I2C	I2C	I2C
interrupt capability	Y	Y	Y	Y
JESD-30 code	S-PDSO-G8	R-PDSO-N8	R-PDSO-N8	R-PDSO-N8
length	3 mm	3 mm	3 mm	3 mm
Number of terminals	8	8	8	8
Number of timers	1	1	1	1
Maximum operating temperature	85 °C	85 °C	85 °C	85 °C
Minimum operating temperature	-40 °C	-40 °C	-40 °C	-40 °C
Package body material	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	TSSOP	HVSON	HVSON	HVSON
Encapsulate equivalent code	TSSOP8,.19	SOLCC8,.11,20	SOLCC8,.11,20	SOLCC8,.11,20
Package shape	SQUARE	RECTANGULAR	RECTANGULAR	RECTANGULAR
Package form	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE	SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE	SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Celsius)	260	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED
power supply	2/5 V	2/5 V	2/5 V	2/5 V
Certification status	Not Qualified	Not Qualified	Not Qualified	Not Qualified
Filter level	TS 16949	TS 16949	TS 16949	TS 16949
Maximum seat height	1.1 mm	0.8 mm	0.8 mm	0.8 mm
Maximum supply voltage	5.5 V	5.5 V	5.5 V	5.5 V
Minimum supply voltage	1.8 V	1.8 V	1.8 V	1.8 V
Nominal supply voltage	2.5 V	2.5 V	2.5 V	2.5 V
surface mount	YES	YES	YES	YES
technology	CMOS	CMOS	CMOS	CMOS
Temperature level	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL
Terminal form	GULL WING	NO LEAD	NO LEAD	NO LEAD
Terminal pitch	0.65 mm	0.5 mm	0.5 mm	0.5 mm
Terminal location	DUAL	DUAL	DUAL	DUAL
shortest time	SECONDS	SECONDS	SECONDS	SECONDS
Maximum time at peak reflow temperature	40	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED
Volatile	NO	NO	NO	NO
width	3 mm	2 mm	2 mm	2 mm
uPs/uCs/peripheral integrated circuit type	TIMER, REAL TIME CLOCK	TIMER, REAL TIME CLOCK	TIMER, REAL TIME CLOCK	TIMER, REAL TIME CLOCK

Recommended Resources

Synchronous operation circuit of two AC commutator motors

Fun lantern simulator circuit

"Three to seven" music color changing light circuit

Tracking voltage regulator circuit diagram consisting of multiple LM396 connected in series

Negative voltage to positive voltage conversion circuit diagram 1

Remote single wire control motor circuit

Shortcut: S0 S1 S2 S3 S4 S5 S6 S7 S8 S9 SA SB SC SD SE SF SG SH SI SJ SK SL SM SN SO SP SQ SR SS ST SU SV SW SX SY SZ T0 T1 T2 T3 T4 T5 T6 T7 T8 T9 TA TB TC TD TE TF TG TH TI TJ TK TL TM TN TO TP TQ TR TS TT TU TV TW TX TY TZ U0 U1 U2 U3 U4 U6 U7 U8 UA UB UC UD UE UF UG UH UI UJ UK UL UM UN UP UQ UR US UT UU UV UW UX UZ V0 V1 V2 V3 V4 V5 V6 V7 V8 V9 VA VB VC VD VE VF VG VH VI VJ VK VL VM VN VO VP VQ VR VS VT VU VV VW VX VY VZ W0 W1 W2 W3 W4 W5 W6 W7 W8 W9 WA WB WC WD WE WF WG WH WI WJ WK WL WM WN WO WP WR WS WT WU WV WW WY X0 X1 X2 X3 X4 X5 X7 X8 X9 XA XB XC XD XE XF XG XH XK XL XM XN XO XP XQ XR XS XT XU XV XW XX XY XZ Y0 Y1 Y2 Y4 Y5 Y6 Y9 YA YB YC YD YE YF YG YH YK YL YM YN YP YQ YR YS YT YX Z0 Z1 Z2 Z3 Z4 Z5 Z6 Z8 ZA ZB ZC ZD ZE ZF ZG ZH ZJ ZL ZM ZN ZP ZR ZS ZT ZU ZV ZW ZX ZY

Popular Components