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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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PM0020 데이터시트(PDF) 45 Page - STMicroelectronics |
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PM0020 데이터시트(HTML) 45 Page - STMicroelectronics |
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45 / 87 page  PM00020 JTAG sequence 45/87 5.1 JTAG timing specification Table 11. Power up mode Symbol Parameter Value Unit Min Max tJTCKL JTCK Low 3(1/fCPUCLK) ns tJTCKH JTCK High 3(1/fCPUCLK) ns tJTCKP JTCK Period 10(1/fCPUCLK) ns tJTSU JTDI, JTMS Setup before JTCK High 4 ns tJTHLD JTDI Hold after JTCK High 4 ns tJTMSHLD JTMS Hold after JTCK High 3(1/fCPUCLK) ns tJDVAL JTCK Low to JTDO Valid 28 ns fJTCK JTCK Frequency fCPUCLK/ 10 Table 12. Turbo mode Symbol Parameter Value Unit Min Max tJTCKL JTCK Low 32 ns tJTCKH JTCK High 32 ns tJTCKP JTCK Period 66.7 ns tJTSU JTDI, JTMS Setup before JTCK High 4 ns tJTHLD JTDI, JTMS Hold after JTCK High 4 ns tJDVAL JTCK Low to JTDO Valid 28 ns fJTCK JTCK Frequency 15 MHz |
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