Specifications Absolute maximum ratingsROM [bits]112K×8RAM [bits]2048×9(Data), 704×10(Display), 1024×8(CGR)Operating supply voltage range VDD max [V]4.5 to 5.5Minimum cycle time [µs]212ns(14.15MHz) Bus cycle=71ns Internal oscillation circuitsMedium-speed RC,VCOExter...
LC8740B2A: Specifications Absolute maximum ratingsROM [bits]112K×8RAM [bits]2048×9(Data), 704×10(Display), 1024×8(CGR)Operating supply voltage range VDD max [V]4.5 to 5.5Minimum cycle...
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| Absolute maximum ratings | |
|---|---|
| ROM [bits] | 112K×8 |
| RAM [bits] | 2048×9(Data), 704×10(Display), 1024×8(CGR) |
| Operating supply voltage range VDD max [V] | 4.5 to 5.5 |
| Minimum cycle time [µs] | 212ns(14.15MHz) Bus cycle=71ns |
| Internal oscillation circuits | Medium-speed RC,VCO |
| External oscillation circuits | Low speed crystal |
| Typical current drain typ [mA] | - |
| Ports: Withstand voltage [V] | VDD |
| Ports: Maximum current [mA] | - |
| Ports: Number of pins: I | - |
| Ports: Number of pins: O | - |
| Ports: Number of pins: I/O | 49 |
| Ports: Number of pins: Total | 49 |
| Interrupts (internal) | 13 |
| Interrupts (external) | 8 |
| Serial I/O | Synchronous: One 8-bit channel with automatic transfer support, Asynchronous/synchronous: Two 8-bit channels with bus support, UARTs (full duplex) |
| Maximum number of timers | 7 |
| A/D converter | 8 bits × 8 |