FS26 datasheet(153/156 Pages) NXP

153 / 156 page

NXP Semiconductors

FS26

Safety system basis chip with low power for ASIL D/ASIL B

Tab. 103. Maximum VBST output current in back-

end configuration for an input average

current of 500 mA (DCBST_MAX = 87.5 %,

Efficiency = 85 %) ...........................................96

Tab. 104. VBST electrical characteristics ........................96

Tab. 105. VBST efficiency measurement settings ...........98

Tab. 106. VCORE electrical characteristics ...................100

Tab. 107. VCORE efficiency measurement settings ......102

Tab. 108. LDOx Electrical characteristics ......................105

Tab. 109. VREF electrical characteristics ......................107

Tab. 110. TRKx Electrical characteristics ......................109

Tab. 111. Switching clock assignment .......................... 111

Tab. 112. Manual frequency tuning configuration ..........111

Tab. 113. Clock management electrical

characteristics ................................................112

Tab. 114. AMUX output selection ..................................113

Tab. 115. AMUX Electrical characteristics .................... 114

Tab. 116. Electrical characteristics ................................116

Tab. 117. GPIO mode configuration ..............................116

Tab. 118. GPIO Active High mode behavior summary .. 118

Tab. 119. GPIO Active Low mode behavior summary ...120

Tab. 120. GPIO electrical characteristics ...................... 122

Tab. 121. List of Interrupt sources from Main logic ........123

Tab. 122. List of Interrupt sources from the fail-safe

domain ...........................................................124

Tab. 123. INTB Electrical characteristics .......................125

Tab. 124. long duration timer characteristics .................126

Tab. 125. Long Duration Timer functions ...................... 127

Tab. 126. Electrical characteristics ................................131

Tab. 127. OTP configurations ........................................136

Tab. 128. Package mechanical dimensions .................. 141

Tab. 129. References .................................................... 148

Tab. 130. Revision history .............................................149

FS26_SDS

All information provided in this document is subject to legal disclaimers.

Product short data sheet

Rev. 6.0 — 12 December 2025

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