PCF2127AT/1 NXP [NXP Semiconductors], PCF2127AT/1 Datasheet - Page 19

• Manufacturer Part Number: PCF2127AT/1
• Description: Integrated RTC, TCXO and quartz crystal
• Manufacturer: NXP [NXP Semiconductors]

NXP Semiconductors
PCF2127A_2
Product data sheet
8.6.1.2 Direct switching mode
If V
If V
Fig 4.
Fig 5.
V
V
DD
DD
DD
DD
V
V
(= 2.5 V)
(= 2.5 V)
th(sw)bat
th(sw)bat
(= 0 V)
(= 0 V)
> V
< V
V
V
V
V
INT
INT
BAT
BAT
BF
BF
DD
DD
Battery switch-over behavior in standard mode with bit BIE set logic 1 (enabled)
Battery switch-over behavior in direct switching mode with bit BIE set logic 1
(enabled)
BAT
BAT
backup battery operation
backup battery operation
the internal power supply is V
the internal power supply is V
All information provided in this document is subject to legal disclaimers.
V
V
BBS
BBS
Rev. 02 — 7 May 2010
internal power supply (= V
internal power supply (= V
DD
BAT
Integrated RTC, TCXO and quartz crystal
.
.
BBS
BBS
)
)
PCF2127A
cleared via interface
cleared via interface
© NXP B.V. 2010. All rights reserved.
001aaj311
001aaj312
V
V
19 of 80
BBS
BBS