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MB89P945PF Datasheet(PDF) 2 Page - Fujitsu Component Limited. |
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MB89P945PF Datasheet(HTML) 2 Page - Fujitsu Component Limited. |
2 / 40 page 2 MB89940 Series (Continued) • 5.0 V single power supply (VPP required for MB89P945) •0.8 µm CMOS technology (MB89PV940 and MB89P945) •0.5 µm CMOS technology (MB89943) • On-chip voltage regulator for internal 3.0 V power supply (MB89943) s PRODUCT LINEUP (Continued) MB89P945 MB89PV940 Classification Mass-produced products (mask ROM products) One-time PROM Piggyback ROM size 8 K × 8 bits (internal mask ROM) 16 K × 8 bits (internal PROM) 32 K × 8 bits (external on piggyback) RAM size 512 × 8 bits 1 K × 8 bits CPU functions The number of instructions: 136 Instruction cycle: 0.5 µs*1@8 MHz Interrupt response time: 4.0 µs*1@8 MHz Multiply instruction time: 19 instruction cycles Divide instruction time: 21 instruction cycles Direct addressing memory-to/from-register data transfer: 7 instruction cycles Ports Output: 5-bit N-ch open-drain Input/Output: Two 8-bit CMOS schmitt I/Os and 8-bit CMOS I/Os Timebase timer 21 bits Interrupt interval: 1 ms, 4.1 ms, 32.8 ms or 524.3 ms 8-bit/16-bit timer Can be used as two 8-bit timers or one 16-bit timer Operation clock: 1 µs, 16 µs, 256 µs or external *1 Watchdog Reset Reset interval: Approx. 524 ms to 1049 ms Stepping motor controller Two 8-bit PWM pulse generators Synchronized 4-channel high current output Operation clock: 250 ns, 500 ns, 1 µs or 4 µs*1 8-bit PWM timers Two 8-bit PWM timers External interrupt 3 channels, selective positive edge or negative edge trigger A/D converter 8-bit resolution, two-channel input Conversion time: 44 instruction cycles for A/D conversion, 12 instruction cycles for sense mode operation LCD controller 4-common and 17-segment outputs Number of outputs programmable Low supply voltage reset Autonomous reset when low supply voltage Reset voltage: 3.3 V, 3.6 V, 4.0 V External voltage monitor interrupt Interrupts when voltage at external pin is lower than the reference voltage Standby modes Stop mode and sleep mode Operating voltage*2 3.5 V to 5.5 V MB89943 Part number Item |
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