| PART |
Description |
Maker |
| SM8224 SM8224BS SM8224B SM8224BM |
Dual-Tone Receiver IC
|
http://
NPC[Nippon Precision Circuits Inc]
|
| SM8224C CF8224C SM8224CM |
Dual-Tone Receiver IC
|
Nippon Precision Circuits Inc
|
| MC145436 MC145436P |
Dual Tone Multiple Frequency Receiver
UltraLow-Supply Current/Supply-Voltage Supervisory Circuits 6-SOT-23 -40 to 85
|
Motorola, Inc.
|
| EM91420 |
Tone/Pulse Switchable Dialer with LCD Interface and Dual-Tone Melody Generator(0.15mA（脉冲）/0.3mA（音调）工作电流的音脉冲可转换的拨号器（带LCD接口和双音旋律发生器 音频/脉冲切换拨号器与LCD接口和双音旋律发生器.15毫安（脉冲）/0.3毫安（音调）工作电流的音脉冲可转换的拨号器（带液晶显示接口和双音旋律发生器）
|
Elan Microelectronics, Corp.
|
| MT3170B MT3270B MT3171B MT3271B |
Wide Dynamic Range (50dB) DTMF Receiver with early DTMF tone detection and power down mode (4.19MHz Xtal)
Wide Dynamic Range (50dB) DTMF Receiver with early DTMF tone detection (4.19MHz Xtal)
Wide Dynamic Range (50dB) DTMF Receiver with Delayed DTMF tone detection and power down mode (4.19MHz Xtal)
Wide Dynamic Range (50dB) DTMF Receiver with delayed DTMF tone detection (4.19MHz Xtal)
|
Zarlink Semiconductor
|
| W91331N W91330ALN W91330LN W91331AN W91330N W91330 |
TONE/PULSE DIALER WITH HANDFREE LOCK AND KEY TONE FUNCTION
TONE/PULSE DIALER WITH HANDSFREE LOCK AND KEY TONE FUNCTIONS
|
Winbond Electronics
|
| MT3371B |
Wide Dynamic Range (50dB) DTMF Receiver with delayed DTMF tone detection and power down mode (4.19MHz Xtal)
|
Zarlink Semiconductor
|
| MC145740 |
MC145740 DUAL TONE MULTIPLE FREQUENCY LINE INTERFACE
Dual Tone Multiple Frequency Line Interface
|
Motorola
|
| RTS903 |
DUAL-TONE MELODY GENERATOR
|
M-Square
|
| M602 M60P M60 M602P |
DOOR BELL DUAL TONE
|
List of Unclassifed Manufacturers
ETC[ETC]
Electronic Theatre Controls, Inc.
|
| TA8184 TA8184F |
DUAL CHANNEL VOLTAGE/TONE CONTROL IC
|
Toshiba Semiconductor
|
| MB4507A |
Dual Tone Multi-Frequency Oscillator
|
Fujitsu Media Devices Limited
|
