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 118 of 137
NXP Semiconductors
PN512
Full NFC Forum-compliant frontend
t
SU;DAT
data set-up time 100 - 10 - ns
t
r
rise time SCL signal 20 300 10 40 ns
t
f
fall time SCL signal 20 300 10 40 ns
t
r
rise time SDA and SCL
signals
20 300 10 80 ns
t
f
fall time SDA and SCL
signals
20 300 10 80 ns
t
BUF
bus free time between a STOP
and START condition
1.3 - 1.3 - s
Remark: The signal NSS must be LOW to be able to send several bytes in one data stream.
To send more than one data stream NSS must be set HIGH between the data streams.
Fig 40. Timing diagram for SPI
Fig 41. Timing for Fast and Standard mode devices on the I
2
C-bus
Table 171. I
2
C-bus timing in Fast mode …continued
Symbol Parameter Conditions Fast mode High-speed
mode
Unit
Min Max Min Max
001aaj634
t
SCKL
t
SCKH
t
SCKL
t
DXSH
t
SHDX
t
DXSH
t
SLDX
t
SLNH
MOSI
SCK
MISO
MSB
MSB
LSB
LSB
NSS
001aaj635
SDA
t
f
SCL
t
LOW
t
f
t
SP
t
r
t
HD;STA
t
HD;DAT
t
HD;STA
t
r
t
HIGH
t
SU;DAT
SSrPS
t
SU;STA
t
SU;STO
t
BUF