PCF2123BS/1 NXP Semiconductors, PCF2123BS/1 Datasheet - Page 7

• Manufacturer Part Number: PCF2123BS/1
• Manufacturer: NXP Semiconductors

Specifications of PCF2123BS/1

• Lead Free Status / Rohs Status: Compliant

NXP Semiconductors
PCF2123
Product data sheet
8.1.2 Power consumptions with respect to timer mode
Four source clocks are possible for the timer. The 4.096 kHz source clock will add the
greatest part to the power consumption. The selection of 64 Hz, 1 Hz, or
almost indistinguishable and add very little.
Fig 5.
Fig 6.
(1) I
(2) Maximum value for R
(1) I
(2) Timer clock = 4 kHz.
(3) Timer clock = 64 Hz, 1 Hz,
I
I
DD
(nA)
DD
(nA)
250
210
170
130
400
300
200
100
(1)
(1)
90
50
Configuration: CLKOUT disabled, V
I
Configuration: CLKOUT disabled, quartz R
I
DD
DD
DD
DD
0
0
0
(nA) minimum power mode.
(nA) minimum power mode.
with respect to quartz R
with respect to timer clock selection
All information provided in this document is subject to legal disclaimers.
Rev. 5 — 27 April 2011
20
S
is 100 kΩ.
1
⁄
60
2
Hz.
S
40
DD
= 3 V, timer clock set to
(2)
(3)
S
= 15 kΩ.
60
4
SPI Real time clock/calendar
1
⁄
60
Hz.
80
V
DD
(V)
Rs
(2)
PCF2123
001aai558
001aai559
© NXP B.V. 2011. All rights reserved.
(kΩ)
1
⁄
60
100
Hz will be
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