PCA2129T/Q900/2,51 NXP Semiconductors, PCA2129T/Q900/2,51 Datasheet - Page 4

• 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
7. Pinning information
PCA2129T
Product data sheet
7.1 Pinning
7.2 Pin description
Table 4.
Symbol
SCL
SDO
SDA/CE
IFS
CLKOUT
V
n.c.
INT
V
SDI
TS
BBS
V
Fig 2.
SS
BAT
DD
Top view. For mechanical details, see
Pin configuration for PCA2129T (SO16)
Pin description of PCA2129T
All information provided in this document is subject to legal disclaimers.
Pin
1
2
3
4
5
6
7
8
9 to 12
13
14
15
16
Rev. 3 — 24 January 2013
Accurate RTC with integrated quartz crystal for automotive
CLKOUT
SDA/CE
Description
combined serial clock input for both I
float when SDA/CE inactive
serial data input for SPI-bus; may float when SDA/CE inactive
serial data output for SPI-bus, push-pull
combined serial data input and output for the I
enable input (active LOW) for the SPI-bus
interface selector input
timestamp input (active LOW) with 200 k internal pull-up resistor
(R
clock output (open-drain)
ground supply voltage
not connected; do not connect; do not use as feed through
interrupt output (open-drain; active LOW)
output voltage (battery backed)
battery supply voltage (backup)
supply voltage
connect to pin V
connect to pin BBS to select the I
connect to V
SDO
PU
SCL
V
SDI
IFS
TS
SS
)
1
2
3
4
5
6
7
8
Figure
PCA2129T
SS
if battery switch over is not used
SS
44.
013aaa125
to select the SPI-bus
16
15
14
13
12
11
10
9
V
V
BBS
INT
n.c.
n.c.
n.c.
n.c.
DD
BAT
2
C-bus
2
C-bus and SPI-bus; may
PCA2129T
2
© NXP B.V. 2013. All rights reserved.
C-bus and chip
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