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M41T00AUDD1E中文资料PDF规格书
M41T00AUDD1E规格书详情
Description
The M41T00AUD is a low-power serial real-time clock (RTC) with an integral audio section with tone generator and 300 mW output amplifier.
Features
Combination real-time clock with audio
■ Serial real-time clock (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
kΩ 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 kΩ feedback resistor and
20 kΩ 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
产品属性
- 型号:
M41T00AUDD1E
- 制造商:
STMICROELECTRONICS
- 制造商全称:
STMicroelectronics
- 功能描述:
Serial real-time clock with audio
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
ST/意法半导体 |
21+ |
DFN-16 |
8800 |
公司只做原装正品 |
询价 | ||
ST/意法 |
2022 |
DFN16 |
80000 |
原装现货,OEM渠道,欢迎咨询 |
询价 | ||
st |
23+ |
16-DFN |
53100 |
询价 | |||
ST/意法 |
23+ |
DFN-16 |
90000 |
只做原装 全系列供应 价格优势 可开增票 |
询价 | ||
ST |
20+ |
DNF16 |
25000 |
全新原装现货,假一赔十 |
询价 | ||
ST意法 |
21+ |
DFN |
4550 |
全新原装现货 |
询价 | ||
ST/意法半导体 |
2021+ |
DFN-16 |
7600 |
原装现货,欢迎询价 |
询价 | ||
ST(意法半导体) |
1942+ |
DFN-16(5x4) |
2532 |
向鸿只做原装,仓库库存优势数量请确认 |
询价 | ||
ST/意法半导体 |
21+ |
DFN-16 |
12820 |
公司只做原装,诚信经营 |
询价 | ||
ST/意法半导体 |
21+ |
DFN-16 |
8860 |
只做原装,质量保证 |
询价 |