Product data

MFRC631 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2014. All rights reserved.
Product data sheet
COMPANY PUBLIC
Rev. 3.3 — 4 February 2014
227433 104 of 120
NXP Semiconductors
MFRC631
High performance ISO/IEC 14443 A/B reader solution
t
SU;DAT
data set-up time 100 - - - ns
t
r
rise time SCL signal 20 300 - 120 ns
t
f
fall time SCL signal 20 300 - 120 ns
t
r
rise time SDA and SCL
signals
20 300 - 120 ns
t
f
fall time SDA and SCL
signals
20 300 - 120 ns
t
BUF
bus free time between a STOP
and START condition
1.3 - 0.5 - s
Fig 32. Timing for fast and standard mode devices on the I
2
C-bus
Table 196. I
2
C-bus timing in fast mode and fast mode plus …continued
Symbol Parameter Conditions Fast mode Fast mode
Plus
Unit
Min Max Min Max
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