PCA2129T/Q900/2,51 NXP Semiconductors, PCA2129T/Q900/2,51 Datasheet - Page 58

• Manufacturer Part Number: PCA2129T/Q900/2,51
• Description: Real Time Clock
• Manufacturer: NXP Semiconductors
• Series: PCA2129r

Specifications of PCA2129T/Q900/2,51

• Rohs: yes
• Function: Clock, Calendar, Alarm, Watchdog, Timestamp
• Rtc Bus Interface: I2C, SPI
• Date Format: Binary
• Time Format: Binary
• Supply Voltage - Max: 4.2 V
• Supply Voltage - Min: 1.8 V
• Maximum Operating Temperature: + 80 C
• Minimum Operating Temperature: - 30 C
• Mounting Style: SMD/SMT
• Package / Case: SOP-16
• Battery Backup Switching: Yes

NXP Semiconductors
13. Dynamic characteristics
Table 55.
V
operating supply voltage at ambient temperature and referenced to V
Figure
[1]
PCA2129T
Product data sheet
Symbol
Pin SCL
f
t
t
t
t
t
Pin SDA/CE
t
t
t
t
Pin SDI
t
t
Pin SDO
t
t
t
clk(SCL)
SCL
clk(H)
clk(L)
r
f
su(CE_N)
h(CE_N)
rec(CE_N)
w(CE_N)
su
h
d(R)SDO
dis(SDO)
t(SDI-SDO)
DD
= 1.8 V to 4.2 V; V
No load value; bus will be held up by bus capacitance; use RC time constant with application values.
42).
SPI-bus characteristics
Parameter
SCL clock frequency
SCL time
clock HIGH time
clock LOW time
rise time
fall time
CE_N set-up time
CE_N hold time
CE_N recovery time
CE_N pulse width
set-up time
hold time
SDO read delay time
SDO disable time
transition time from SDI to
SDO
13.1 SPI-bus timing characteristics
SS
= 0 V; T
amb
=

40
All information provided in this document is subject to legal disclaimers.

Conditions
for SCL signal
for SCL signal
set-up time for SDI data
hold time for SDI data
C
[1]
to avoid bus conflict
C to +85
L
= 50 pF
Rev. 3 — 24 January 2013
Accurate RTC with integrated quartz crystal for automotive

C, unless otherwise specified. All timing values are valid within the
IL
and V
V
Min
800
100
400
-
-
60
40
100
-
70
70
-
-
-
0
IH
DD
with an input voltage swing of V
= 1.8 V
100
-
-
0.99
Max
2.0
-
-
-
100
-
-
-
225
90
-
-
30
30
-
20
V
Min
-
140
70
70
-
25
20
-
-
0
DD
PCA2129T
= 4.2 V
© NXP B.V. 2013. All rights reserved.
-
-
Max
6.5
-
-
-
30
30
-
0.99
-
-
55
25
-
SS
to V
ns
ns
Unit
MHz
ns
ns
ns
ns
ns
ns
s
ns
ns
ns
ns
ns
DD
58 of 72
(see