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PIC12F1572 数据表(PDF) 27 Page - Microchip Technology |
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PIC12F1572 数据表(HTML) 27 Page - Microchip Technology |
27 / 32 page 2013 Microchip Technology Inc. DS40001713A-page 27 PIC12(L)F1571/2 8.1 AC Timing Diagrams FIGURE 8-1: PROGRAMMING MODE ENTRY – VDD FIRST FIGURE 8-2: PROGRAMMING MODE ENTRY – VPP FIRST FIGURE 8-3: PROGRAMMING MODE EXIT – VPP LAST FIGURE 8-4: PROGRAMMING MODE EXIT – VDD LAST TDLY Data input not driven to next clock input (delay required between command/data or command/ command) 1.0 — — s TERAB Bulk Erase cycle time — — 5 ms TERAR Row Erase cycle time — — 2.5 ms TPINT Internally timed programming operation time —— 2.5 5ms Program memory Configuration Words TPEXT Externally timed programming pulse 1.0 — 2.1 ms Note 1 TDIS Time delay from program to compare (HV discharge time) 300 — — s TEXIT Time delay when exiting Program/Verify mode 1 — — s Note 1: Externally timed writes are not supported for Configuration and Calibration bits. 2: Bulk-erased devices default to brown-out enabled. VDDMIN is 2.85 volts when performing low-voltage programming on a bulk-erased device, to ensure that the device is not held in Brown-out Reset. TABLE 8-1: AC/DC CHARACTERISTICS TIMING REQUIREMENTS FOR PROGRAM/VERIFY MODE AC/DC CHARACTERISTICS Standard Operating Conditions Production tested at 25°C Sym. Characteristics Min. Typ. Max. Units Conditions/Comments VPP TENTH VDD TENTS ICSPDAT ICSPCLK VIHH VIL TENTH ICSPDAT ICSPCLK VDD TENTS VPP VIHH VIL TEXIT VPP VDD ICSPDAT ICSPCLK VIHH VIL TEXIT VPP VDD ICSPDAT ICSPCLK VIHH VIL |
类似零件编号 - PIC12F1572 |
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类似说明 - PIC12F1572 |
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