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參數(shù)資料
| 型號(hào)： | M41ST85Y-85MH6 |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 時(shí)鐘/數(shù)據(jù)恢復(fù)及定時(shí)提取 |
| 英文描述： | 1 TIMER(S), REAL TIME CLOCK, PDSO28 |
| 封裝： | 0.330 INCH, SNAPHAT, PLASTIC, SOH-28 |
| 文件頁數(shù)： | 27/32頁 |
| 文件大?。?/td> | 171K |
| 代理商： | M41ST85Y-85MH6 |
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M41ST85Y, M41ST85W
4/32
SUMMARY DESCRIPTION
The M41ST85Y/W Serial TIMEKEEPER/Control-
ler SRAM is a low power 512 bit static CMOS
SRAM organized as 64 words by 8 bits. A built-in
32.768 kHz oscillator (external crystal controlled)
and 8 bytes of the SRAM (see Table 6, page 19)
are used for the clock/calendar function and are
configured in binary coded decimal (BCD) format.
An additional 12 bytes of RAM provide status/con-
trol of Alarm, Watchdog and Square Wave func-
tions. Addresses and data are transferred serially
via a two line, bi-directional I2C interface. The
built-in address register is incremented automati-
cally after each write or read data byte. The
M41ST85Y/W has a built-in power sense circuit
which detects power failures and automatically
switches to the battery supply when a power fail-
ure occurs. The energy needed to sustain the
SRAM and clock operations can be supplied by a
small lithium button-cell supply when a power fail-
ure occurs.
Functions available to the user include a non-vol-
atile, time-of-day clock/calendar, Alarm interrupts,
Watchdog Timer and programmable Square
Wave output. Other features include a Power-On
Reset as well as two additional debounced inputs
(RSTIN1 and RSTIN2) which can also generate an
output Reset (RST). The eight clock address loca-
tions contain the century, year, month, date, day,
hour, minute, second and tenths/hundredths of a
second in 24 hour BCD format. Corrections for 28,
29 (leap year - valid until year 2100), 30 and 31
day months are made automatically. The ninth
clock address location controls user access to the
clock information and also stores the clock soft-
ware calibration setting.
The M41ST85Y/W is supplied in a 28 lead SOIC
SNAPHAT package (which integrates both crystal
and battery in a single SNAPHAT top). The 28 pin
330mil SOIC provides sockets with gold plated
contacts at both ends for direct connection to a
separate SNAPHAT housing containing the bat-
tery and crystal. The unique design allows the
SNAPHAT battery/crystal package to be mounted
on top of the SOIC package after the completion of
the surface mount process.
Insertion of the SNAPHAT housing after reflow
prevents potential battery and crystal damage due
to the high temperatures required for device sur-
face-mounting. The SNAPHAT housing is also
keyed to prevent reverse insertion.
The SOIC and battery/crystal packages are
shipped separately in plastic anti-static tubes or in
Tape & Reel form. For the 28 lead SOIC, the bat-
tery/crystal package (i.e. SNAPHAT) part number
is “M4TXX-BR12SH” (see Table 18, page 30).
Caution: Do not place the SNAPHAT battery/crys-
tal top in conductive foam, as this will drain the lith-
ium button-cell battery.
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| M41T00M6 | 0 TIMER(S), REAL TIME CLOCK, PDSO8 |
| M41T0DS6 | REAL TIME CLOCK, PDSO8 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M41ST85YMH | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:5.0 OR 3.0V, 512 bit 64 x 8 SERIAL RTC and NVRAM SUPERVISOR |
| M41ST85YMH6 | 功能描述:實(shí)時(shí)時(shí)鐘 Serial 512 (64x8) RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 總線接口:I2C 日期格式:DW:DM:M:Y 時(shí)間格式:HH:MM:SS RTC 存儲(chǔ)容量:64 B 電源電壓-最大:5.5 V 電源電壓-最小:1.8 V 最大工作溫度:+ 85 C 最小工作溫度: 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| M41ST85YMH6E | 功能描述:IC RTC 5.0V 512BIT NVRAM 28SOIC RoHS:否 類別:集成電路 (IC) >> 時(shí)鐘/計(jì)時(shí) - 實(shí)時(shí)時(shí)鐘 系列:- 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- 類型:時(shí)鐘/日歷 特點(diǎn):警報(bào)器，閏年，SRAM 存儲(chǔ)容量:- 時(shí)間格式:HH:MM:SS（12/24 小時(shí)） 數(shù)據(jù)格式:YY-MM-DD-dd 接口:SPI 電源電壓:2 V ~ 5.5 V 電壓 - 電源，電池:- 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-WDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:8-TDFN EP 包裝:管件 |
| M41ST85YMH6TR | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:5.0 OR 3.0V, 512 bit 64 x 8 SERIAL RTC and NVRAM SUPERVISOR |
| M41ST85YMX | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:5.0 OR 3.0V, 512 bit 64 x 8 SERIAL RTC and NVRAM SUPERVISOR |
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