PCF2128T PHILIPS [NXP Semiconductors], PCF2128T Datasheet - Page 5

• Manufacturer Part Number: PCF2128T
• Description: Integrated RTC / TCXO / Crystal
• Manufacturer: PHILIPS [NXP Semiconductors]

NXP Semiconductors
7. Limiting values
8. Application information
PCF2128_SDS_0
Preliminary [short] data sheet
7.1 ESD values
Table 4:
Symbol
V
V
I
V
V
I
I
P
T
T
DD
I
O
•
•
•
•
•
•
•
•
•
•
DD
BAT
I
O
tot
amb
stg
ESD protection exceeds 2000 V HBM per JESD22-A114, 200 V MM per
JESD22-A115 and 2000 V CDM per JESD22-C101.
Latch-up testing is done to JEDEC standard JESD78 which exceeds 100 mA.
The PCF2128 is a ready to run real time clock; no external quartz is required.
You can set different configurations in your application depending on the PCF2128
functions you want to use.
The integration of the quartz crystal in the same package as the RTC has the
following advantages:
– elimination of crystal procurement issues
– elimination of RTC frequency tuning
– no more crystal PCB layout issues.
You can select the SPI or I
By connecting a battery to V
You can use the battery backed voltage V
RAM data in battery backup mode.
You can connect PFI through an external voltage divider to V
fail detection. If not used, connect PFI to V
You can connect the timestamp input pin TS to a push button for tamper detection.
Limiting
Parameter
supply voltage
backup battery supply
voltage
supply current
input voltage
output voltage
input current
output current
total power dissipation
ambient temperature
storage temperature
valuesIn accordance with the Absolute Maximum Rating System (IEC 60134).
Rev. 00.03 — 4 June 2007
2
C-bus interface using the IFS pin.
BAT
an uninterruptible power supply is guaranteed.
Conditions
OUT
SS
.
to supply an external RAM to retain
Real time clock / calendar
Min
−0.5
−0.5
−50
−0.5
−0.5
−10
−10
-
−40
−65
DD
to allow extra power
PCF2128
© NXP B.V. 2007. All rights reserved.
Max
+6.5
+6.5
+50
+6.5
+6.5
+10
+10
300
+85
+150
Unit
V
V
mA
V
V
mA
mA
mW
°C
°C
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