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PCF85363ATL/A 数据表(PDF) 26 Page - NXP Semiconductors

部件名 PCF85363ATL/A
功能描述  Tiny Real-Time Clock/calendar with 64 byte RAM, alarm function, battery switch-over time stamp input, and I2C-bus
PDF  86 Pages
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制造商  NXP [NXP Semiconductors]
网页  http://www.nxp.com
标志 NXP - NXP Semiconductors

PCF85363ATL/A 数据表(HTML) 26 Page - NXP Semiconductors

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NXP Semiconductors
PCF85363A
Tiny Real-Time Clock/calendar with 64 byte RAM, alarm function, battery switch-over time stamp input,
and I2C-bus
Bit
Symbol
Value
Description
011
LV, record
Last time switch to VDD event
100
FE, record
First TS pin Event
101
LE, record
Last TS pin Event
110 to 111
no timestamp
Timestamp1 (TSR1)
timestamp register 1 mode
00[1]
no timestamp
01
FE, record
First TS pin Event
10
LE, record
Last TS pin Event
1 to 0
TSR1M[1:0]
11
no timestamp
Table 19. TSR_mode - timestamp mode control register (address 23h) bit
description...continued
[1]
Default value.
First event means that the time is only stored on the first event and not recorded for
subsequent events. When the first event occurs, the associated timestamp flag is
set. When the flag is cleared, then a new ‘first’ event is recorded. See Figure 16 and
Figure 17.
Last event means that the time is stored on every event. When an event occurs, the
associated timestamp flag is set. It is not necessary to clear the flag before a new event
is recorded.
Interrupts can be generated in INTA pin and/or INTB pin. Interrupts are generated every
time a timestamp register is updated. Interrupt generation is not conditional on the state
of the timestamp flags. See Section 7.7.1.
source of
power
VDD power
battery power
VDD power
battery power
VDD power
t1
t2
t3
t4
t5
FB, LB
LV
FB, LB
LV
LB
no change
TSR2 = t2
TSR2 set to last time
switch to VDD , LV
TSR3 set to first time
switch to battery, FB
no change
TSR2 = t4
no change
TSR3 = t1
TSR3 = t3
no change
no change
no change
event type
event time
aaa-009596
timestamp3 flag,
TSR3F
flag cleared by interface
Figure 16. Example battery switch-over timestamp
PCF85363A
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2021. All rights reserved.
Product data sheet
Rev. 3.1 — 18 June 2021
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