pcf2123 NXP Semiconductors, pcf2123 Datasheet - Page 8

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pcf2123

Manufacturer Part Number
pcf2123
Description
Spi Real Time Clock/calendar
Manufacturer
NXP Semiconductors
Datasheet

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NXP Semiconductors
PCF2123_1
Product data sheet
9.1.2 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 7.
(1) I
(2) Timer clock = 4 kHz.
(3) Timer clock = 64 Hz, 1 Hz,
I
DD
(nA)
400
300
200
100
(1)
Configuration: CLKOUT disabled, quartz R
I
DD
DD
0
0
(nA) minimum power mode.
with respect to timer clock selection
Rev. 01 — 19 November 2008
1
60
2
Hz.
(2)
(3)
S
= 15 k .
4
SPI Real time clock/calendar
V
DD
(V)
PCF2123
© NXP B.V. 2008. All rights reserved.
001aai559
1
60
Hz will be
6
8 of 54

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