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MC8641DTVU1000H bảng dữ liệu(PDF) 3 Page - Freescale Semiconductor, Inc |
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MC8641DTVU1000H bảng dữ liệu(HTML) 3 Page - Freescale Semiconductor, Inc |
3 / 8 page MPC8641 and MPC8641D Integrated Host Processor Hardware Specifications Addendum for the MC8641xTxxnnnnxC Series, Rev. 0 Freescale Semiconductor 3 General Parameters 2.1 Overall DC Electrical Characteristics 2.1.2 Recommended Operating Conditions Table 2 provides the recommended operating conditions for the MPC8641 part numbers described herein. 11.2 JTAG AC Electrical Specifications Table 44 provides the JTAG AC timing specifications for the MPC8641 part numbers described herein. Table 2. Recommended Operating Conditions Characteristic Symbol Recommended Value Unit Notes Junction temperature range TJ –40 to 105 °C— Table 44. JTAG AC Timing Specifications (Independent of SYSCLK) 1 Parameter Symbol 2 Min Max Unit Notes Input setup times: Boundary-scan data TMS, TDI tJTDVKH tJTIVKH 15 0 — — ns 4 Notes: 1. All outputs are measured from the midpoint voltage of the falling/rising edge of tTCLK to the midpoint of the signal in question. The output timings are measured at the pins. All output timings assume a purely resistive 50- Ω load (see Figure 32). Time-of-flight delays must be added for trace lengths, vias, and connectors in the system. 2.The symbols used for timing specifications herein follow the pattern of t(first two letters of functional block)(signal)(state) (reference)(state) for inputs and t(first two letters of functional block)(reference)(state)(signal)(state) for outputs. For example, tJTDVKH symbolizes JTAG device timing (JT) with respect to the time data input signals (D) reaching the valid state (V) relative to the tJTG clock reference (K) going to the high (H) state or setup time. Also, tJTDXKH symbolizes JTAG timing (JT) with respect to the time data input signals (D) went invalid (X) relative to the tJTG clock reference (K) going to the high (H) state. Note that, in general, the clock reference symbol representation is based on three letters representing the clock of a particular functional. For rise and fall times, the latter convention is used with the appropriate letter: R (rise) or F (fall). 4. Non-JTAG signal input timing with respect to tTCLK. |
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