M4T28-BR12SH1TR datasheet(5/12 Pages) STMICROELECTRONICS

tên linh kiện	M4T28-BR12SH1TR

Giải thích chi tiết về linh kiện	TIMEKEEPER SNAPHAT (BATTERY & CRYSTAL)

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M4T28-BR12SH, M4T32-BR12SH

MECHANICAL INFORMATION

Electrical connection to the SOIC is made through

four pins that connect to the four press fitted sock-

ets at each end of the SOIC. Critical contact points

between the pins and sockets are gold-plated to

resist oxidation. Internally, each socket contains

six independent contact fingers to form redundant

connections between the two components. These

sockets were designed with high point contact

force to provide the lowest possible contact resis-

tance. The SNAPHAT® top also incorporates four

molded-in retaining clips which hold onto the ends

of the SOIC insuring mechanical and electrical

connection even under severe mechanical shock

and vibration. The combined SOIC and SNAPHAT

assembly can sustain shock levels in excess of

100 g without separating. This package also pass-

es variable frequency testing in accordance with

MIL-STD-883, method 2007.2, condition A.

Figure 3 illustrates the affect of repeated insertion

and extraction of the SNAPHAT top to the SOIC.

The force required to extract the SNAPHAT, and

then to re-insert it, reduces each time. After four or

five extractions, the reduction starts to become

unnoticeable and the force required remains at a

fairly constant figure. Typically, though, the

SNAPHAT will only need to be extracted and re-

inserted once in its lifetime.

Figure 3. SNAPHAT Insertion/Extraction Forces

0

2.5

5

7.5

10

12.5

15

1

234

5

6

789

10

Number of Extractions

Average Insertion

Average Extraction

AI02526

Số phần tương tự - M4T28-BR12SH1TR

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
STMicroelectronics	M4T28-BR12SH1TR	139Kb / 16P	TIMEKEEPER짰 SNAPHAT짰 (battery and crystal)
STMicroelectronics	M4T28-BR12SH1TR	135Kb / 16P	TIMEKEEPER SNAPHAT (battery and crystal)

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Mô tả tương tự - M4T28-BR12SH1TR

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
STMicroelectronics	M4TXX-BR12SH	51Kb / 7P	TIMEKEEPER SNAPHAT Battery & Crystal November 1999
STMicroelectronics	M4T28-BR12SH1	135Kb / 16P	TIMEKEEPER SNAPHAT (battery and crystal)
Texas Instruments	BQ48SH-28X6	96Kb / 6P	[Old version datasheet] SNAPHAT WITH INTEGRATED BATTERY AND CRYSTAL
STMicroelectronics	M4ZXX-BR00SH	49Kb / 7P	ZEROPOWER SNAPHAT Battery November 1999
STMicroelectronics	M4Z28-BR00SH	163Kb / 12P	ZEROPOWER SNAPHAT (BATTERY)
Texas Instruments	BQ48SH	126Kb / 7P	[Old version datasheet] SNAPHAT??WITH INTEGRATED BATTERT AND CRYSTAL
Dallas Semiconductor	DS1286	234Kb / 13P	Watchdog Timekeeper
Holtek Semiconductor In...	HT1380	183Kb / 10P	Serial Timekeeper Chip
Holtek Semiconductor In...	HT1381-8SOPLF	172Kb / 10P	Serial Timekeeper Chip
STMicroelectronics	M48T212V	312Kb / 35P	3.3V TIMEKEEPER supervisor

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