# # JTAG and Access Signal Comps # # Key In Components File for the HTM Module # -------------------------------------------- # # # Original Rev. 3-Feb-2018 # Most Recent Rev. 21-Apr-2018 # # # This file holds all of the JTAG and Access Signal components. # # These components are associated with the Front Panel J12 Connector. # # # Most of these components have reference Designators # in the range of ?? through ??. # # # # # JTAG and Access Signal Components # # # Board_Location # Ref Part_Number Symbol Geometry X Y Properties #----- ----------- ------ ------------------ -------------- ---------- # # # JTAG and Access Signal Input and Output 3V3 to 3V3 "Translator" Buffer # # located near the front panel J12 "Access" connector. # U351 IC_74AVCH8T245 SY_JUNK tssop_24 22.00 46.00 1 0 # # Default Input Pull-Up Resistors and Series Terminator Resistors # # for the four JTAG Signals: # R351 Res_4700_Ohm_0603 SY_JUNK res_0603 12.00 42.00 1 180 R352 Res_4700_Ohm_0603 SY_JUNK res_0603 12.00 44.00 1 180 R353 Res_33_Ohm_0603 SY_JUNK res_0603 12.00 46.00 1 180 R354 Res_4700_Ohm_0603 SY_JUNK res_0603 12.00 48.00 1 180 R357 Res_33_Ohm_0603 SY_JUNK res_0603 39.00 49.00 2 270 R358 Res_33_Ohm_0603 SY_JUNK res_0603 36.50 49.00 2 270 R359 Res_33_Ohm_0603 SY_JUNK res_0603 34.00 49.00 2 270 R360 Res_33_Ohm_0603 SY_JUNK res_0603 198.00 144.00 2 270 # # Series Terminator Resistors for the two Access Signals: # R361 Res_33_Ohm_0603 SY_JUNK res_0603 199.80 108.50 2 270 R362 Res_33_Ohm_0603 SY_JUNK res_0603 196.70 108.50 2 270 R355 Res_33_Ohm_0603 SY_JUNK res_0603 12.00 52.00 1 180 R356 Res_33_Ohm_0603 SY_JUNK res_0603 12.00 54.00 1 180 # # ByPass Capacitors for the "translator" buffer chip # C351 Cap_100_nFd_0603 SY_JUNK cap_0603 22.00 53.00 2 0 C352 Cap_220_nFd_0603 SY_JUNK cap_0603 22.00 39.00 2 0 C353 Cap_220_nFd_0603 SY_JUNK cap_0603 22.00 58.00 1 0 C354 Cap_100_nFd_0603 SY_JUNK cap_0603 22.00 34.00 1 0 # # Fuse for the JTAG Reference Power on pin #2 of front panel connector J2 # # located on side 1 near J2. # F5 Fuse_SMD_3A SY_JUNK Fuse_SMD 10.00 34.00 1 0