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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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SCF5249VM140 데이터시트(PDF) 43 Page - Freescale Semiconductor, Inc |
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SCF5249VM140 데이터시트(HTML) 43 Page - Freescale Semiconductor, Inc |
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43 / 56 page  Electrical Characteristics SCF5249 Integrated ColdFire® Microprocessor Data Sheet, Rev. 3 Freescale Semiconductor 43 Figure 15. General-Purpose Parallel Port Timing Definition P3 SCLK to GPIO Valid (output valid) — tbd nSec P4 SCLK to GPIO Invalid (output hold) tbd — nSec Table 30. IEEE 1149.1 (JTAG) AC Timing Specifications Num Characteristic Units Min Max - TCK Frequency of Operation 0 10 MHz J1 TCK Cycle Time 100 - nSec J2a TCK Clock Pulse High Width 25 - nSec J2b TCK Clock Pulse Low Width 25 - nSec J3a TCK Fall Time (VIH=2.4 V to VIL=0.5 V) —5 nSec J3b TCK Rise Time (VIL=0.5 v to VIH=2.4 V) —5 nSec J4 TDI, TMS to TCK rising (Input Setup) 8 — nSec J5 TCK rising to TDI, TMS Invalid (Hold) 10 — nSec J6 Boundary Scan Data Valid to TCK (Setup) tbd — nSec J7 TCK to Boundary Scan Data Invalid to rising edge (Hold) tbd — nSec Table 29. General-Purpose I/O Port AC Timing Specifications Num Characteristic Units Min Max SCLK GPIO IN GPIO OUT P1 P2 P4 P3 |
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