PCF85063BTL All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2015. All rights reserved.
Product data sheet Rev. 6 — 18 November 2015 40 of 58
NXP Semiconductors
PCF85063BTL
Tiny Real-Time Clock/calendar with alarm function and SPI-bus
Table 43. SPI-bus characteristics
V
DD
= 1.8 V to 5.5 V; V
SS
=0V; T
amb
=
40
C to +85
C; f
osc
= 32.768 kHz; quartz R
s
=60k
; C
L
= 7 pF; unless otherwise
specified. All timing values are valid within the operating supply voltage and temperature range and referenced to V
IL
and V
IH
with an input voltage swing of V
SS
to V
DD
.
Symbol Parameter Conditions V
DD
= 1.8V to 3.3V V
DD
> 3.3V to 5.5V Unit
Min Max Min Max
f
SCL
SCL clock frequency - 5 - 7 MHz
t
SCL
SCL time 200 - 140 - ns
t
clk(H)
clock HIGH time 80 - 80 - ns
t
clk(L)
clock LOW time 110 - 60 - ns
t
r
rise time for SCL signal - 100 - 100 ns
t
f
fall time for SCL signal - 100 - 100 ns
t
su(CE)
CE set-up time 15 - 15 - ns
t
h(CE)
CE hold time 10 - 10 - ns
t
rec(CE)
CE recovery time 50 - 50 - ns
t
w(CE)
CE pulse width measured after valid
subaddress is
received
- 0.99 - 0.99 s
t
su
set-up time set-up time for SDIO
data
5- 5- ns
t
h
hold time hold time for SDIO
data
50 - 20 - ns
t
d(R)SDO
SDO read delay time bus load = 50 pF - 110 - 60 ns
t
dis(SDO)
SDO disable time no load value; bus will
be held up by bus
capacitance; use RC
time constant with
application values
- 50 - 50 ns
t
t(SDI-SDO)
transition time from SDI to SDO to avoid bus conflict;
on pin SDIO
0- 0- ns
