Advisory Crystal: Maximum Equivalent Series Resistance (ESR) Values are Reduced
Revisions Affected
0, A
Details The maximum ESR values are reduced. For the revisions affected, the data in Table
5-1 supersedes the data given in the "Crystal Equivalent Series Resistance (ESR)
Requirements" table in the TMS320F2837xD Dual-Core Real-Time Microcontrollers data
sheet. The differences between the two tables are highlighted in Table 5-1.
Table 5-1. Crystal Equivalent Series Resistance (ESR)
Requirements
CRYSTAL FREQUENCY
(MHz)
MAXIMUM ESR (Ω)
(CL1/2 = 12 pF)
(1)
MAXIMUM ESR (Ω)
(CL1/2 = 24 pF)
(1)
2 175 375
4 100 195
6 75 145
8 65 105
10 55 70
12 50 45
14 50 35
16 45 25
18 40 20
20 30 15
(1) Crystal shunt capacitance (C0) should be less than or equal to 7 pF.
Workarounds None
Silicon Revision A Usage Notes and Advisories www.ti.com
48 TMS320F2837xD Dual-Core Real-Time MCUs Silicon Errata (Silicon
Revisions C, B, A, 0)
SPRZ412M – DECEMBER 2013 – REVISED MARCH 2023
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