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參數資料
| 型號： | M41T00AUDD1E |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 時鐘/數據恢復及定時提取 |
| 英文描述： | REAL TIME CLOCK, DSO16 |
| 封裝： | 5 X 4 MM, ROHS COMPLIANT, DFN-16 |
| 文件頁數： | 1/42頁 |
| 文件大小： | 333K |
| 代理商： | M41T00AUDD1E |
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March 2009
Rev 4
1/42
1
M41T00AUD
Serial real-time clock with audio
Features
Combination real-time clock with audio
■ Serial RTC based on M41T00
■ Audio section provides:
– 300 mW differential audio amplifier
– 256 and 512 Hz tone generation
– –33 to +12 dB gain, 3 dB steps (16 steps
plus MUTE)
■ 0°C to 70°C operation
■ Small DFN16 package (5 mm x 4 mm)
Real-time clock details
■ Superset of M41T00
■ 3.0 to 3.6 V operation
– Timekeeping down to 1.7 V
■ Automatic backup switchover circuit
– Ultra low 400 nA backup current at 3.0 V
(typ)
– Suitable for battery or capacitor backup
– On-chip trickle charge circuit for backup
capacitor
■ 400 kHz I2C bus
■ M41T00 compatible register set with counters
for seconds, minutes, hours, day, date, month,
years, and century
– Automatic leap year compensation
– HT bit set when clock goes into backup
mode
■ RTC operates using 32,768 Hz quartz crystal
– Calibration register provides for
adjustments of –63 to +126 ppm
– Oscillator supports crystals with up to 40
k
Ω series resistance, 12.5 pF load
capacitance
■ Oscillator fail detect circuit OF bit indicates
when oscillator has stopped for four or more
cycles
Audio section
■ Power amplifier
– Differential output amplifier
– Provides 300 mW into 8
Ω
(THD+N = 2% (max), fin = 1 kHz)
■ Summing node at audio input
– Inverting configuration with summing
resistors into the minus (-) terminal
– 0 dB gain with 10 k
Ω feedback resistor and
20 k
Ω input summing resistors
– Signal input centered at VDD/2
– 1.6 VP-P analog input range (max)
■ 256 or 512 Hz signal multiplexing with analog
input to provide audio with beep tones
■ Volume control, 4-bit register
– Allows gain adjustment from –33 dB to
+12 dB
– 3 dB steps
–MUTE bit
■ Audio automatically shuts off in backup mode
DFN16 (5 mm x 4 mm)
“D” Suffix
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相關代理商/技術參數 |
參數描述 |
|---|---|
| M41T00AUDD1F | 功能描述:實時時鐘 SERIAL RTC W/AUDIO 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 時間格式:HH:MM:SS RTC 存儲容量: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: 安裝風格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| M41T00CAP | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Serial access real-time clock (RTC) with integral backup battery and crystal |
| M41T00CAPPC1 | 制造商:STMicroelectronics 功能描述:REAL TIME CLOCK SERL 8BYTE 16DFN - Bulk 制造商:STMicroelectronics 功能描述:IC RTC SERIAL W/AUDIO 24PDIP |
| M41T00M | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Serial Access TIMEKEEPER |
| M41T00M6 | 功能描述:實時時鐘 Serial 64 (8X8) 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 時間格式:HH:MM:SS RTC 存儲容量: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: 安裝風格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
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