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PT7C4563 PDF даташит

Спецификация PT7C4563 изготовлена ​​​​«Pericom Semiconductor» и имеет функцию, называемую «Real-time Clock Module».

Детали детали

Номер произв PT7C4563
Описание Real-time Clock Module
Производители Pericom Semiconductor
логотип Pericom Semiconductor логотип 

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PT7C4563 Даташит, Описание, Даташиты
PT7C4563
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Real-time Clock Module (I2C Bus)
Features
Using external 32.768kHz quartz crystal
Supports I2C-Bus's high speed mode (400 kHz)
Includes time (Hour/Minute/Second) and calendar
(Year/Month/Date/Day) counter functions (BCD
code)
Programmable square wave output signal
Oscillator stop flag
Low backup current: typ. 400nA at VDD=3.0V and
TA=25°C
Operating range: 1.3V to 5.5V
Description
The PT7C4563 serial real-time clock is a low-power
clock/calendar with a programmable square-wave output.
Address and data are transferred serially via a 2-wire
bidirectional bus. The clock/calendar provides seconds,
minutes, hours, day, date, month, and year information.
The date at the end of the month is automatically
adjusted for months with fewer than 31 days, including
corrections for leap year. The clock operates in the 24-
hour format indicator.
Table 1 shows the basic functions of PT7C4563. More
details are shown in section: overview of functions.
Table 1. Basic functions of PT7C4563
Item
Function
Source: Crystal: 32.768kHz
1
Oscillator
Oscillator enable/disable
Oscillator fail detect
2 Time
Time display
Century bit
12-hour
24-hour
Time count chain enable/disable
3 Interrupt
Alarm interrupt
4 Programmable square wave output (Hz)
Communicati 2-wire I2C bus
5
on Burst mode
PT7C4563
-
-
-
1, 32, 1.024k, 32.768k
-
2013-06-0002
PT0333-4 06/18/13
1









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PT7C4563 Даташит, Описание, Даташиты
PT7C4563
Real-time Clock Module (I2C Bus)
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Pin Configuration
PT7C4363
1 X1
VCC 8
2 X2
SQW 7
3 INT
SCL 6
4 GND
SDA 5
DIP-8
SOIC-8
TSSOP-8
Pin Description
Pin no.
1
Pin Type
Description
X1 I Oscillator Circuit Input. Together with X2, 32.768kHz crystal is connected between them.
2 X2 O Oscillator Circuit Output. Together with X1, 32.768kHz crystal is connected between them.
3 INT O Interrupt Output. Open drain, active low.
4
GND
P Ground.
5
SDA
I/O
Serial Data Input/Output. SDA is the input/output pin for the 2-wire serial interface. The SDA
pin is open-drain output and requires an external pull-up resistor.
6 SCL I Serial Clock Input. SCL is used to synchronize data movement on the I2C serial interface.
7
SQW
O
Clock Output. Open drain. Four frequencies selectable: 32.768k, 1.024k, 32, 1Hz when SQWE
bit is set to 1.
8
VCC
P Power.
2013-06-0002
PT0333-4 06/18/13
2









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PT7C4563 Даташит, Описание, Даташиты
PT7C4563
Real-time Clock Module (I2C Bus)
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Function Block
PT7C4363
X1
32.768
kHz
X2
CD OSC
CG
Counter Chain
Control Register
INT
SQW
Alarm Interrupt Control
Square Wave Output Control
Comparator
Alarm Register
(Min, Hour, Day, Date)
Time Counter
(Sec,Min,Hour,Day,Date,Month,Year)
Address
Decoder
Address
Register
Shift Register
I /O
Interface
(I2C)
SCL
SDA
Note: Built in CD=CG=12pF
Maximum Ratings
StorageTemperature...............................................................................................................-65oCto +150oC
Ambient Temperaturewith Power Applied......................................................................-40oCto +85oC
SupplyVoltage to Ground Potential(Vcc to GND) ..................................................... -0.3Vto +6.5V
DC Input (All Other Inputs except Vcc & GND)........................................................... -0.3Vto (Vcc+0.3V)
DC Output Voltage (SDA, /INTA, /INTB pins)..............................................................-0.3Vto +6.5V
Power Dissipation....................................................................................................................320mW (Depend on package)
Note:
Stresses greater than those listed under MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and
functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not
implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability.
Recommended Operating Conditions
Symbol
VCC
VIH
VIL
TA
Power voltage
Input high level
Input low level
Operating temperature
Description
Min
1.3
0.7 VCC
-0.3
-40
Type
-
-
-
-
Max
5.5
VCC+0.3
0.3 VCC
85
Unit
V
ºC
2013-06-0002
PT0333-4 06/18/13
3










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Номер в каталогеОписаниеПроизводители
PT7C4563Real-time Clock ModulePericom Semiconductor
Pericom Semiconductor

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