PCF8563T/F4,112 NXP Semiconductors, PCF8563T/F4,112 Datasheet - Page 9

• Manufacturer Part Number: PCF8563T/F4,112
• Description: IC REAL TIME CLK/CALENDAR 8-SOIC
• Manufacturer: NXP Semiconductors
• Type: Clock/Calendarr

Specifications of PCF8563T/F4,112

• Package / Case: 8-SOIC (3.9mm Width)
• Time Format: HH:MM:SS (24 hr)
• Date Format: YY-MM-DD-dd
• Interface: I²C, 2-Wire Serial
• Voltage - Supply: 1.8 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Function: Clock/Calendar/Alarm/Timer Interrupt
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 1.8 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Rtc Bus Interface: Serial (2-Wire, I2C)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 568-3615 - DEMO BOARD I2C
• Memory Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 568-5029; 935262217112; PCF8563T/F4,112; PCF8563TD; PCF8563TD

NXP Semiconductors
PCF8563
Product data sheet
8.4.1.1 Voltage-low detector and clock monitor
8.4.1 Register VL_seconds
8.4 Time and date registers
The majority of the registers are coded in the BCD format to simplify application use.
Table 8.
[1]
Table 9.
The PCF8563 has an on-chip voltage-low detector (see
V
information is no longer guaranteed. The VL flag can only be cleared by using the
interface.
Bit
7
6 to 4 SECONDS 0 to 5
3 to 0
Seconds value
(decimal)
00
01
02
:
09
10
:
58
59
Fig 7.
low
Start-up value.
, bit VL in the VL_seconds register is set to indicate that the integrity of the clock
Symbol
VL
Voltage-low detection
VL_seconds - seconds and clock integrity status register (address 02h) bit
description
Seconds coded in BCD format
All information provided in this document is subject to legal disclaimers.
Value
0
1
0 to 9
Upper-digit (ten’s place)
Bit 6
0
0
0
:
0
0
:
1
1
[1]
Rev. 8 — 18 November 2010
V
V
DD
low
Place value Description
-
-
ten’s place
unit place
Bit 5
0
0
0
:
0
0
:
0
0
period of battery
operation
Bit 4
0
0
0
:
0
1
:
1
1
clock integrity is guaranteed
integrity of the clock information is not guaranteed
actual seconds coded in BCD format, see
VL set
Digit (unit place)
Bit 3
0
0
0
:
1
0
:
1
1
normal power
operation
Figure
mgr887
t
Bit 2
0
0
0
:
0
0
:
0
0
7). When V
Real-time clock/calendar
Bit 1
0
0
1
:
0
0
:
0
0
PCF8563
© NXP B.V. 2010. All rights reserved.
DD
drops below
Table 9
0
1
0
1
0
0
1
Bit 0
:
:
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