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參數(shù)資料
| 型號： | M4T32-BR12SHx |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | Serial real-time clock with 44 bytes NVRAM and reset |
| 中文描述： | 串行實時與44字節(jié)的NVRAM和復(fù)位時鐘 |
| 文件頁數(shù)： | 1/41頁 |
| 文件大小： | 225K |
| 代理商： | M4T32-BR12SHX |
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November 2007
Rev 5
1/41
1
M41T94
Serial real-time clock with 44 bytes NVRAM and reset
Features
■
Counters for tenths/hundredths of seconds,
seconds, minutes, hours, day, date, month,
year, and century
■
32KHz crystal oscillator integrating load
capacitance (12.5pF) providing exceptional
oscillator stability and high crystal series
resistance operation
■
Serial peripheral interface (2MHz SPI)
■
Ultra-low battery supply current of 500nA (max)
■
2.7 to 5.5V operating voltage
■
2.5 to 5.5V oscillator operating voltage
■
Battery low flag
■
Automatic switchover and deselect circuitry
■
44 bytes of general purpose RAM
■
Programmable alarm and interrupt function
(valid even during battery back-up mode)
■
Accurate programmable watchdog timer (from
62.5ms to 128s)
■
Microprocessor power-on reset
■
Choice of power-fail deselect voltages
(V
CC
= 2.7 to 5.5V):
– THS = V
SS
; 2.55V
≤
V
PFD
≤
2.70V
– THS = V
CC
; 4.20V
≤
V
PFD
≤
4.50V
■
Packaging includes a 28-lead SOIC and
SNAPHAT
top (to be ordered separately) or
16-lead SOIC
■
28-lead SOIC package provides direct
connection for a SNAPHAT top which contains
the battery and crystal
■
RoHS compliant
– Lead-free second level interconnect
28
1
16
1
SO16 (MQ)
SOH28 (MH)
SNAPHAT (SH)
battery & crystal
www.st.com
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M4TH | 制造商:M/A-COM Technology Solutions 功能描述:RF MIXER |
| M-4-TR-BL | 功能描述:罩類、盒類及殼類產(chǎn)品 2.2X2.8X.7 BL RoHS:否 制造商:Bud Industries 產(chǎn)品:Boxes 外部深度:6.35 mm 外部寬度:6.35 mm 外部高度:2.56 mm NEMA 額定值: IP 等級: 材料:Acrylonitrile Butadiene Styrene (ABS) 顏色:Red |
| M-4-TR-GR | 功能描述:罩類、盒類及殼類產(chǎn)品 2.2X2.8X.7 GR RoHS:否 制造商:Bud Industries 產(chǎn)品:Boxes 外部深度:6.35 mm 外部寬度:6.35 mm 外部高度:2.56 mm NEMA 額定值: IP 等級: 材料:Acrylonitrile Butadiene Styrene (ABS) 顏色:Red |
| M-4-TR-GY | 功能描述:罩類、盒類及殼類產(chǎn)品 2.2X2.8X.7 GY RoHS:否 制造商:Bud Industries 產(chǎn)品:Boxes 外部深度:6.35 mm 外部寬度:6.35 mm 外部高度:2.56 mm NEMA 額定值: IP 等級: 材料:Acrylonitrile Butadiene Styrene (ABS) 顏色:Red |
| M-4-TR-RD | 功能描述:罩類、盒類及殼類產(chǎn)品 2.2X2.8X.7 RD RoHS:否 制造商:Bud Industries 產(chǎn)品:Boxes 外部深度:6.35 mm 外部寬度:6.35 mm 外部高度:2.56 mm NEMA 額定值: IP 等級: 材料:Acrylonitrile Butadiene Styrene (ABS) 顏色:Red |
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