NTAG213F/216F
NXP Semiconductors
NFC Forum T2T IC with 144/888 bytes user memory and field detection
time. It does it for either the 4-bit ACK value specified in Section 9.3 or for a data frame.
All timing can be measured according to ISO/IEC 14443-3 frame specification as shown
for the Frame Delay Time in Figure 13. For more details refer to Ref. 1.
last data bit transmitted by the NFC device
FDT = (n* 128 + 84)/fc
first modulation of the NFC TAG
128/fc
logic „1“
256/fc
end of communication (E)
128/fc
start of
communication (S)
FDT = (n* 128 + 20)/fc
128/fc
logic „0“
256/fc
128/fc
start of
end of communication (E)
communication (S)
aaa-006986
Fig 13. Frame Delay Time (from NFC device to NFC tag), TACK and TNAK
Remark: Due to the coding of commands, the measured timings usually excludes (a part
of) the end of communication. Considered this factor when comparing the specified with
the measured times.
9.3 NTAG ACK and NAK
NTAG uses a 4 bit ACK / NAK as shown in Table 21.
Table 21. ACK and NAK values
Code (4-bit)
ACK/NAK
Ah
0h
1h
5h
Acknowledge (ACK)
NAK for invalid argument (i.e. invalid page address)
NAK for parity or CRC error
NAK for EEPROM write error
NTAG213F_216F
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Product data sheet
COMPANY PUBLIC
Rev. 3.1 — 28 August 2013
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