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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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EM78P451WM датащи(PDF) 45 Page - ELAN Microelectronics Corp |
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EM78P451WM датащи(HTML) 45 Page - ELAN Microelectronics Corp |
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45 / 54 page  EM78P451 8-Bit Microcontroller with OTP ROM Product Specification (V1.1) 06.30.2003 • 41 (This specification is subject to change without further notice) Internal C, external R Table (For reference only) External R (Ohm) Fosc @5.0V, 25℃ (Hz) 10K 12M 15K 7.7M 20K 5.7M 30K 3.65M 51K 2.24M 100K 1.14M 150K 749K 200K 559K 510K 214K 2M 56K 3.3M 32.8K 4.10 Code Option Register Address 12 11 10 9 8 7 6 5 4 3 2 1 0 0xFFF MS ENWDT CLKS PTB HLF RCT HLP DEL0 DEL1 ID3 ID2 ID1 ID0 Bit 12 (MS): Oscillator type selection. 0: RC type 1: XTAL type Bit 11 (ENWDT): Watchdog Timer enabled. 0: Enable 1: Disable Bit 10 (CLKS): Clocks of each instruction cycle. 0: Two clocks 1: Four clocks Bit 9 (PTB): Protect bit. 0: Protect enabled 1: Protect disabled Bit 8 (HLF): XTAL frequency selection. 0: Low frequency (32.768KHz) 1: High frequency This bit is useful only when Bit 12 (MS) is 1. When MS is 0, HLF must be 0. |
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