M48T86SH中文资料PDF规格书
M48T86SH规格书详情
Description
The M48T86 is an industry standard real-time clock (RTC). The M48T86 is composed of a lithium energy source, quartz crystal, write protection circuitry, and a 128-byte RAM array.
This provides the user with a complete subsystem packaged in either a 24-pin DIP CAPHAT™ or 28-pin SNAPHAT® SOIC. Functions available to the user include a nonvolatile time-of-day clock, alarm interrupts, a one-hundred-year clock with programmable interrupts, square wave output, and 128 bytes of non-volatile static RAM.
The 24-pin, 600 mil DIP CAPHAT houses the M48T86 silicon with a quartz crystal and a long-life lithium button cell in a single package.
The 28-pin, 330 mil SOIC provides sockets with gold plated contacts at both ends for direct connection to a separate SNAPHAT® housing containing the battery and crystal. The unique design allows the SNAPHAT battery 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 surface-mounting. The SNAPHAT housing is keyed to prevent reverse insertion.
The SOIC and battery packages are shipped separately in plastic anti-static tubes or in tape & reel form.
For the 28-lead SOIC, the battery/crystal package part number is “M4T28-BR12SH” (see Table 20 on page 33).
Features
■ Drop-in replacement for PC computer clock/calendar
■ Counts seconds, minutes, hours, days, day of the week, date, month, and year with leap year compensation
■ Clock accuracy better than ±1 minute per month
■ Interfaced with software as 128 RAM locations:
– 14 bytes of clock and control registers
– 114 bytes of general purpose RAM
■ Selectable bus timing (Intel/Motorola)
■ Three interrupts are separately software maskable and testable
– Time-of-day alarm (once/second to once/day)
– Periodic rates from 122 µs to 500 ms
– End-of-clock update cycle
■ Programmable square wave output
■ 10 years of data retention and clock operation in the absence of power
■ Self-contained battery and crystal in the CAPHAT™ DIP package
■ Packaging includes a 28-lead SOIC and SNAPHAT® top (to be ordered separately)
■ SOIC package provides direct connection for a SNAPHAT top contains the battery and crystal
■ Pin and function compatible with bq3285/7A and DS12887
■ RoHS compliant
– Lead-free second level interconnect
产品属性
- 型号:
M48T86SH
- 制造商:
STMICROELECTRONICS
- 制造商全称:
STMicroelectronics
- 功能描述:
5V PC REAL TIME CLOCK
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
ST |
DIP |
93480 |
集团化配单-有更多数量-免费送样-原包装正品现货-正规 |
询价 | |||
MT |
QFN |
68900 |
原包原标签100%进口原装常备现货! |
询价 | |||
ST |
23+ |
QFP |
3200 |
全新原装、诚信经营、公司现货销售! |
询价 | ||
ST |
2022 |
DIP |
5280 |
原厂原装正品,价格超越代理 |
询价 | ||
20+ |
DIP |
26580 |
全新原装长期特价销售 |
询价 | |||
ST |
23+ |
DIP-24 |
5000 |
原装正品,假一罚十 |
询价 | ||
LI |
O4 |
SOP |
20 |
询价 | |||
STM原厂目录 |
23+ |
N/A |
28500 |
授权代理直销,原厂原装现货,假一罚十,特价销售 |
询价 | ||
MT |
0707+ |
QFN28 |
196 |
一级代理,专注军工、汽车、医疗、工业、新能源、电力 |
询价 | ||
MT |
0707+ |
QFN28 |
196 |
全新原装,支持实单,假一罚十,德创芯微 |
询价 |