MB4507A is Dual Tone Multi-Frequency Oscillator manufactured by Fujitsu Semiconductor Limited.
| Part Number | Description |
|---|---|
| MB4509 | Tlelphone IC |
| MB4051 | 8 CH 10 BIT A/D CONVERTER |
| MB4052 | 4-Channel 8-Bit A/D Converter |
| MB40528 | 1 Channel 8-bit A/D Converter |
| MB4053 | 6-Channel 8-BIT A/D Converter |