pcf2127a NXP Semiconductors, pcf2127a Datasheet - Page 64

• Manufacturer Part Number: pcf2127a
• Description: Integrated Rtc, Tcxo And Quartz Crystal
• Manufacturer: NXP Semiconductors

NXP Semiconductors
Table 61.
V
[1]
[2]
[3]
PCF2127A_1
Product data sheet
Symbol Parameter
Power management
V
V
V
Inputs
V
V
V
I
C
Outputs
V
I
I
I
LI
OL
OH
LO
DD
th(sw)bat
th(bat)low
th(PFI)
I
IL
IH
O
i
= 1.8 V to 4.2 V; V
For reliable oscillator start-up at power-on: V
Timer source clock =
Tested on sample basis.
battery switch threshold
voltage
low battery threshold
voltage
threshold voltage on pin
PFI
input voltage
LOW-level input voltage
HIGH-level input voltage
input leakage current
input capacitance
output voltage
LOW-level output current output sink current;
HIGH-level output
current
output leakage current
Static characteristics
SS
1
⁄
60
= 0 V; T
Hz, level of pins SDA/CE, SDI and SCL is V
amb
…continued
=
Conditions
T
V
V
on pins CLKOUT, INT, RST, PFO, referring to
external pull-up
on pin SDO
V
output source current;
on pin SDO; V
V
amb
DD
I
OL
O
−
on pin SDA
on all other outputs
= V
40
= V
= 0.4 V; V
> 2.0 V
= −20 °C to +85 °C;
°
DD
DD(po)min
DD
C to +85
or V
or V
Rev. 01 — 21 January 2010
SS
= V
SS
DD
OH
°
DD(min)
C, unless otherwise specified.
= 4.2 V
= 3.8 V; V
+ 0.3 V.
DD
DD
= 4.2 V
or V
SS
.
Integrated RTC, TCXO and quartz crystal
[3]
Min
-
-
-
−0.5
-
-
0.7V
−1
-
−0.5
−0.5
20
1.0
1.0
−1
DD
Typ
2.5
2.5
1.25
-
-
-
-
0
-
-
-
-
-
-
0
PCF2127A
© NXP B.V. 2010. All rights reserved.
Max
-
-
-
V
0.25V
0.3V
-
+1
7
5.5
V
-
-
-
1
DD
BBS
+ 0.5
DD
+ 0.5 V
DD
64 of 79
Unit
V
V
V
V
V
V
μA
pF
V
mA
mA
mA
μA
V