M41ST87W_V01 datasheet(1/54 Pages) STMICROELECTRONICS

Numer części	M41ST87W

Szczegółowy opis	5.0 and 3.3/3.0 V secure serial RTC and NVRAM supervisor with tamper detection and 128 bytes of clearable NVRAM

PDF	54 Pages

Scroll/Zoom	100%

Producent	STMICROELECTRONICS [STMicroelectronics]

Strona internetowa	http://www.st.com

Logo

1 / 54 page

May 2016

DocID9497 Rev 11

1/54

This is information on a product in full production.

www.st.com

M41ST87W

5.0 and 3.3/3.0 V secure serial RTC and NVRAM supervisor with

tamper detection and 128 bytes of clearable NVRAM

Datasheet - production data

Features

•

5.0, 3.3, or 3.0 V operation

•

400 kHz I

2C bus

•

NVRAM supervisor to non-volatize external

LPSRAM

•

2.5 to 5.5 V oscillator operating voltage

•

Automatic switchover and deselect circuitry

•

Choice of power-fail deselect voltages

−

M41ST87Y: (not recommended for new

design, contact ST sales office for

availability)

THS = 1: VPFD

≈ 4.63 V;

VCC = 4.75 to 5.5 V

THS = 0: VPFD

≈ 4.37 V;

VCC = 4.5 to 5.5 V

−

M41ST87W:

THS = 1: VPFD

≈ 2.9 V;

VCC = 3.0 to 3.6 V

THS = 0: VPFD

≈ 2.63 V;

VCC = 2.7 to 3.6 V

•

Two independent power-fail comparators

(1.25 V reference)

•

Counters for tenths/hundredths of seconds,

seconds, minutes, hours, day, date, month,

year, and century

•

128 bytes of clearable, general purpose

NVRAM

•

Programmable alarm and interrupt function

(valid even during battery backup mode)

•

Programmable watchdog timer

•

Unique electronic serial number (8-byte)

•

32 kHz frequency output available upon

power-on

•

Microprocessor power-on reset output

•

Battery low flag

•

Ultra-low battery supply current of 500 nA

(typ)

Security features

•

Tamper indication circuits with timestamp

and RAM clear

•

LPSRAM clear function (TPCLR)

•

Packaging includes a 28-lead, embedded

crystal SOIC and a 20-lead SSOP

•

Oscillator stop detection

SSOP20

28-pin, (300 mil)

SOX28, embedded crystal

Podobny numer części - M41ST87W_V01

Producent	Numer części	Arkusz danych	Szczegółowy opis
STMicroelectronics	M41ST87WMX6	733Kb / 42P	5.0, 3.3, or 3.0V, 1280 bit (160 x8) Secure Serial RTC and NVRAM Supervisor with Tamper Detection Mar-2006
	M41ST87WMX6	461Kb / 48P	5.0 V and 3.3/3.0 V secure serial RTC and NVRAM supervisor with tamper detection and 128 bytes of clearable NVRAM 10-Sep-2008
	M41ST87WMX6	695Kb / 52P	5.0 V and 3.3/3.0 V secure serial RTC and NVRAM supervisor with tamper detection and 128 bytes of clearable NVRAM 31-Mar-2010
	M41ST87WMX6F	695Kb / 52P	5.0 V and 3.3/3.0 V secure serial RTC and NVRAM supervisor with tamper detection and 128 bytes of clearable NVRAM 31-Mar-2010
	M41ST87WMX6TR	733Kb / 42P	5.0, 3.3, or 3.0V, 1280 bit (160 x8) Secure Serial RTC and NVRAM Supervisor with Tamper Detection Mar-2006

More results

Podobny opis - M41ST87W_V01

Producent	Numer części	Arkusz danych	Szczegółowy opis
STMicroelectronics	M41ST85Y	530Kb / 34P	5.0 OR 3.0V, 512 bit 64 x 8 SERIAL RTC and NVRAM SUPERVISOR Sep-2004
	M41ST87W	733Kb / 42P	5.0, 3.3, or 3.0V, 1280 bit (160 x8) Secure Serial RTC and NVRAM Supervisor with Tamper Detection Mar-2006
	M41ST85W	606Kb / 34P	3.0/3.3V I2C Combination Serial RTC, NVRAM Supervisor and Microprocessor Supervisor Jan-2006
	M41ST84W	302Kb / 34P	3.0/3.3 V I2C serial RTC with 44 bytes of NVRAM and supervisory functions 28-Aug-2008
	M41ST85W	369Kb / 41P	3.0/3.3V I2C combination serial RTC, NVRAM supervisor and microprocessor supervisor 03-Oct-2007
	M41ST87Y	461Kb / 48P	5.0 V and 3.3/3.0 V secure serial RTC and NVRAM supervisor with tamper detection and 128 bytes of clearable NVRAM 10-Sep-2008
	M41ST87Y	695Kb / 52P	5.0 V and 3.3/3.0 V secure serial RTC and NVRAM supervisor with tamper detection and 128 bytes of clearable NVRAM 31-Mar-2010
	M41ST85W	450Kb / 43P	3.0/3.3 V I2C combination serial RTC, NVRAM supervisor and microprocessor supervisor 03-Oct-2011
	M41ST87W	787Kb / 54P	5.0 V and 3.3/3.0 V secure serial RTC and NVRAM supervisor with tamper detection and 128 bytes of clearable NVRAM 03-Oct-2011
	M41T11	231Kb / 30P	Serial real-time clock (RTC) with 56 bytes of NVRAM 11-Jun-2012

More results

M41ST87W Arkusz danych(PDF) 1 Page - STMicroelectronics

M41ST87W Arkusz danych(HTML) 1 Page - STMicroelectronics

Podobny numer części - M41ST87W_V01

Podobny opis - M41ST87W_V01

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54

Arkusz danych Pobierz

Link URL