PCF2129T View Datasheet(PDF) - NXP Semiconductors.
Part Name
Description
MFG CO.
'PCF2129T' PDF : 73 Pages View PDF
NXP Semiconductors
PCF2129T
Accurate RTC with integrated quartz crystal for industrial
Table 11. CLKOUT frequency selection
COF[2:0]
CLKOUT frequency (Hz)
000[2][3]
32 768
001
16 384
010
8 192
011
4 096
100
2 048
101
1 024
110
1
111
CLKOUT = high-Z
Typical duty cycle[1]
60 : 40 to 40 : 60
50 : 50
50 : 50
50 : 50
50 : 50
50 : 50
50 : 50
-
[1] Duty cycle definition: % HIGH-level time : % LOW-level time.
[2] Default value.
[3] The specified accuracy of the RTC can be only achieved with CLKOUT frequencies not equal to
32.768 kHz or if CLKOUT is disabled.
PCF2129T
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 3 — 12 February 2013
© NXP B.V. 2013. All rights reserved.
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