PCF2129AT/1,512 NXP Semiconductors, PCF2129AT/1,512 Datasheet - Page 4

• Manufacturer Part Number: PCF2129AT/1,512
• Description: IC REAL TIME CLK/CALENDAR 20SOIC
• Manufacturer: NXP Semiconductors
• Type: Clock/Calendar/Alarmr

Specifications of PCF2129AT/1,512

• Package / Case: 20-SOIC (7.5mm Width)
• Date Format: YY-MM-DD-dd
• Time Format: HH:MM:SS (12/24 hr)
• Interface: I²C, SPI
• Voltage - Supply: 1.8 V ~ 4.2 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Function: Clock, Alarm, Watchdog, Timestamp
• Supply Voltage (max): 4.2 V
• Supply Voltage (min): 1.8 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Rtc Bus Interface: I2C, SPI
• Supply Current: 800 uA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Memory Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 568-4960-5; 935288599512

NXP Semiconductors
7. Pinning information
PCF2129A_2
Product data sheet
7.1 Pinning
7.2 Pin description
Table 3.
Symbol
SCL
SDI
SDO
SDA/CE
IFS
TS
CLKOUT
V
n.c.
INT
BBS
V
V
Fig 2.
SS
BAT
DD
Top view. For mechanical details, see
Pin configuration for PCF2129A (SO20)
Pin description of PCF2129A
All information provided in this document is subject to legal disclaimers.
Pin
1
2
3
4
5
6
7
8
9 to 16
17
18
19
20
Rev. 02 — 7 May 2010
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 kΩ 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
SDO
PU
SCL
V
SDI
n.c.
n.c.
IFS
TS
SS
)
10
1
2
3
4
5
6
7
8
9
Figure
PCF2129A
SS
44.
Integrated RTC, TCXO and quartz crystal
001aaj704
to select the SPI-bus
20
19
18
17
16
15
14
13
12
11
V
V
BBS
INT
n.c.
n.c.
n.c.
n.c.
n.c.
n.c.
DD
BAT
2
C-bus
2
C-bus and SPI-bus; may
PCF2129A
2
© NXP B.V. 2010. All rights reserved.
C-bus and chip
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