PCF2123BS NXP [NXP Semiconductors], PCF2123BS Datasheet - Page 39

• Manufacturer Part Number: PCF2123BS
• Description: SPI Real time clock/calendar
• Manufacturer: NXP [NXP Semiconductors]

NXP Semiconductors
11. Static characteristics
Table 44.
V
specified.
PCF2123_1
Product data sheet
Symbol
Supplies
V
I
Inputs
V
V
V
DD
DD
DD
IL
IH
I
= 1.1 V to 5.5 V; V
Static characteristics
Parameter
supply voltage
supply current
LOW-level input voltage
HIGH-level input voltage
input voltage
SS
= 0 V; T
amb
= 40 C to +85 C; f
Conditions
for clock data integrity;
SPI-bus inactive
T
SPI-bus active
SPI-bus active
SPI-bus inactive;
CLKOUT disabled
SPI-bus inactive;
CLKOUT disabled;
T
SPI-bus inactive;
CLKOUT enabled at 32 kHz;
T
SPI-bus inactive;
CLKOUT enabled at 32 kHz;
T
on pins CE, SDI, SCL, OSCI,
CLKOE, CLKOUT
amb
amb
amb
amb
f
V
f
V
T
V
T
V
T
V
V
V
V
V
V
V
V
V
V
SCL
SCL
amb
amb
amb
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
Rev. 01 — 19 November 2008
= 25 C
= 40 C to +85 C
= 25 C
= 40 C to +85 C
= 4.5 MHz;
= 5 V
= 1.0 MHz;
= 3 V
= 2.0 V
= 3.0 V
= 5.0 V
= 2.0 V
= 3.0 V
= 5.0 V
= 2.0 V
= 3.0 V
= 5.0 V
= 2.0 V
= 3.0 V
= 5.0 V
= 25 C;
= 25 C;
= 25 C;
osc
= 32.768 kHz; quartz R
[1]
[2]
[2]
Min
1.1
-
1.6
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
0.7V
0.5
DD
s
= 15 k ; C
SPI Real time clock/calendar
Typ
-
0.9
-
250
30
100
110
120
-
-
-
260
340
520
-
-
-
-
-
-
L
= 7 pF; unless otherwise
PCF2123
© NXP B.V. 2008. All rights reserved.
Max
5.5
-
5.5
400
80
-
-
-
330
350
380
-
-
-
450
550
750
0.3V
-
5.5
DD
Unit
V
V
V
nA
nA
nA
nA
nA
nA
nA
nA
nA
nA
nA
nA
V
V
V
39 of 54
A
A