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UPD789304GC Datasheet(PDF) 5 Page - NEC |
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UPD789304GC Datasheet(HTML) 5 Page - NEC |
5 / 64 page µµµµPD789304, 789306, 789314, 789316 Data Sheet U14384EJ1V0DS 5 OVERVIEW OF FUNCTIONS Item µPD789304 µPD789306 µPD789314 µPD789316 ROM 8 KB 16 KB 8 KB 16 KB High-speed RAM 512 bytes Internal memory LCD display RAM 24 bytes Main system clock (oscillation frequency) Ceramic/crystal oscillation (1.0 to 5.0 MHz) RC oscillation (2.0 to 4.0 MHz) Subsystem clock (oscillation frequency) Crystal oscillation (32.768 kHz) 0.4 µs/1.6 µs (@ 5.0 MHz operation with main system clock) 0.5 µs/2.0 µs (@ 4.0 MHz operation with main system clock) Minimum instruction execution time 122 µs (@ 32.768 kHz operation with subsystem clock) General-purpose registers 8 bits × 8 registers Instruction set • 16-bit operation • Bit manipulation (set, reset, test) I/O ports Total: 23 • CMOS I/O: 19 • N-ch open drain: 4 Timers • 16-bit timer: 1 channel • 8-bit timer/event counter: 2 channels • Watch timer: 1 channel • Watchdog timer: 1 channel Serial interface • Switchable between 3-wire serial I/O mode and UART mode: 1 channel • 3-wire serial I/O mode: 1 channel LCD controller/driver • Segment signal outputs: 24 (Max.) • Common signal outputs: 4 (Max.) Maskable Internal: 9, External: 5 Vectored interrupt sources Non-maskable Internal: 1 Power supply voltage VDD = 1.8 to 5.5 V Operating ambient temperature TA = –40 to +85 °C Package • 64-pin plastic QFP (14 × 14) • 64-pin plastic TQFP (12 × 12) |
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