- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄359071 > M4TXX-BR12 (意法半導(dǎo)體) TIMEKEEPER SNAPHAT Battery & Crystal PDF資料下載
參數(shù)資料
| 型號(hào)： | M4TXX-BR12 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | TIMEKEEPER SNAPHAT Battery & Crystal |
| 中文描述： | 計(jì)時(shí)SNAPHAT電池 |
| 文件頁(yè)數(shù)： | 2/7頁(yè) |
| 文件大?。?/td> | 51K |
| 代理商： | M4TXX-BR12 |
M4TXX-BR12SH
2/7
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-plat-
ed to resist oxidation. Internally, each socket con-
tains six independent contact fingers to form
redundant connections between the two compo-
nents. These sockets were designed with high
point contact force to provide the lowest possible
contact resistance. The SNAPHAT top also incor-
porates four molded-in retaining clips which hold
onto the ends of the SOIC insuring mechanical
and electrical connection even under severe me-
chanical shock and vibration. The combined SOIC
and SNAPHAT assembly can sustain shock levels
in excess of 100 g without separating. This pack-
age also passes variable frequency testing in ac-
cordance with MIL-STD-883, method 2007.2,
condition A.
Figure 2 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 three
or four extractions, though, 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.
BATTERY CHARACTERISTICS
Figure 3 illustrates the lithium coin cell discharge
rate for a given load. This demonstrates the char-
Figure 2. SNAPHAT Insertion/Extraction Forces
AI02526
0
2.5
5
F
1
2
3
6
Number of Extractions
4
5
7
7.5
10
12.5
5
7.5
20
9
8
10
Average Insertion Force
Average Extraction Force
Table 1. Description
Parameter
Value
Operating
Temperature
1 = 0 to 70 °C
6 = –40 to 85 °C
Storage
Temperature
–40 to 85 °C
Nominal Crystal
Frequency
32.768 kHz
Load Capacitance
12.5 pF
Nominal
Battery Voltage
2.8 V
Nominal
Battery Capacity
48 mAh
120 mAh
M4T28
M4T32
Battery Chemistry
Li(CF)x
acteristically flat voltage level supplied by the bat-
tery until very near the end of its life. These
discharge levels have been greatly accelerated in
comparison to the normal, actual usage.
UL RECOGNITION
The M4Txx-BR12SH has been recognized by Un-
derwriters Laboratories under their Component
Recognition Program and carries U.L. File Num-
ber E89556.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| M4TXX-BR12SH | TIMEKEEPER SNAPHAT Battery & Crystal |
| M4Z28-BR00SH1 | 16 Characters x 4 Lines, 5x7 Dot Matrix Character and Cursor |
| M4Z28-BR00SH6 | 16 Characters x 4 Lines, 5x7 Dot Matrix Character and Cursor |
| M4Z28-BR00SH | 5V or 3V NVRAM SUPERVISOR FOR LPSRAM |
| M50A | Axialleaded Hermetically Sealed High Voltage Standard Recovery Rectifier Diode(反向電壓5000V，平均正向電流260mA，軸向引腳，密封型，高壓，標(biāo)準(zhǔn)恢復(fù)整流二極管) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M4TXX-BR12SH | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:TIMEKEEPER SNAPHAT Battery & Crystal |
| M4V4265CT7ST | 制造商:Panasonic Industrial Company 功能描述:IC |
| M-4-WHT | 制造商:SERPAC Electronic Enclosures 功能描述: |
| M4X.38X1/32THK FLT SS PS | 制造商:WASHERS 功能描述: |
| M4X.7L10.0 | 制造商:Helical Wire Inc 功能描述: |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。