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| Mounting Type | Surface Mount |
| Package / Case | 44-QFP |
| Supplier Device Package | 44-PQFP (10x10) |
| Packaging | Tray |
| Series | Impact |
| Feature | Configurable GPIO, Internal Oscillator, Timer/Counter |
| Part Status | Obsolete |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) |
| Voltage - Supply | 3.3V 5V |
| Number of Channels | 1, UART |
| Data Rate (Max) | 1Mbps |
| FIFO's | 16 Byte |
| With False Start Bit Detection | Yes |
| With Modem Control | Yes |
| With Auto Flow Control | Yes |
| RoHS Status | ROHS3 Compliant |
| Factory Lead Time | 7 Weeks |
| Surface Mount | YES |
| Published | 2004 |
| JESD-609 Code | e3 |
| Moisture Sensitivity Level (MSL) | 2 (1 Year) |
| Number of Terminations | 44 |
| Terminal Finish | TIN |
| Additional Feature | ALSO OPERATES AT 5V SUPPLY |
| HTS Code | 8542.31.00.01 |
| Terminal Position | QUAD |
| Terminal Form | GULL WING |
| Peak Reflow Temperature (Cel) | 260 |
| Supply Voltage | 3.3V |
| Terminal Pitch | 0.8mm |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Base Part Number | SC28L91A |
| Pin Count | 44 |
| JESD-30 Code | S-PQFP-G44 |
| Qualification Status | Not Qualified |
| Operating Temperature (Max) | 85°C |
| Operating Temperature (Min) | -40°C |
| Temperature Grade | INDUSTRIAL |
| uPs/uCs/Peripheral ICs Type | SERIAL IO/COMMUNICATION CONTROLLER, SERIAL |
| Clock Frequency | 8MHz |
| Address Bus Width | 4 |
| Boundary Scan | NO |
| Low Power Mode | YES |
| External Data Bus Width | 8 |
| Number of Serial I/Os | 1 |
| Bus Compatibility | 68XXX; 80XXX |
| Data Transfer Rate-Max | 0.125 MBps |
| Communication Protocol | ASYNC, BIT |
| Length | 10mm |
| Height Seated (Max) | 2.1mm |
| Width | 10mm |
SC28L91A1B,551 Datasheet
+8613715157867