| Part Number | MT8889CS1 | MT8889CE1 | 
|---|---|---|
| Manufacturer | Microchip Technology | Microchip Technology | 
| Category | Interface - Telecom | Interface - Telecom | 
|   |   | |
| Product Status | Active | Obsolete | 
| Function | DTMF Transceiver | DTMF Transceiver | 
| Interface | - | - | 
| Number of Circuits | 1 | 1 | 
| Voltage - Supply | 4.75V ~ 5.25V | 4.75V ~ 5.25V | 
| Current - Supply | 7mA | 7mA | 
| Power (Watts) | - | - | 
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | 
| Mounting Type | Surface Mount | Through Hole | 
| Package / Case | 20-SOIC (0.295", 7.50mm Width) | 20-DIP (0.300", 7.62mm) | 
| Supplier Device Package | 20-SOIC | 20-PDIP |