| M-8870-01 | DTMF receiver in 18-pin DIP package. Operational temperature range from -40°C to 85°C. | Datasheet*) |
| M-8870-01SM | DTMF receiver in 18-pin SOIC package. Operational temperature range from -40°C to 85°C. | Datasheet*) |
| M-8870-01SMTR | DTMF receiver in 18-pin SOIC package. Operational temperature range from -40°C to 85°C. | Datasheet*) |
| M-8870-02 | DTMF receiver in 18-pin DIP package. Operational temperature range from -40°C to 85°C. | Datasheet*) |
| M-8870-02SM | DTMF receiver in 18-pin SOIC package. Operational temperature range from -40°C to 85°C. | Datasheet*) |
| M-8870-02T | DTMF receiver in 18-pin SOIC package. Operational temperature range from -40°C to 85°C. | Datasheet*) |