Datasheet

PN512 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2016. All rights reserved.
Product data sheet
COMPANY PUBLIC
Rev. 5.2 — 16 June 2016
111352 97 of 137
NXP Semiconductors
PN512
Full NFC Forum-compliant frontend
To indicate 25 us it is required to count 339 clock cycles. This means the value for
TPrescaler has to be set to TPrescaler = 169.The timer has now an input clock of 25 us.
The timer can count up to 65535 timeslots of each 25 s. For the behaviour in version
1.0, see Section 20 “
Errata sheet” on page 109.