Overview
The PCF8593T/1,112, manufactured by NXP USA Inc., is a low-power CMOS clock and calendar circuit designed for efficient power consumption. This integrated circuit (IC) features a two-line bidirectional I2C-bus interface for serial data transfer and includes an on-chip 32.768 kHz oscillator circuit. It is optimized for use in various applications requiring precise timekeeping and calendar functions.
Key Specifications
| Parameter | Description |
|---|---|
| Package Type | SO8 (Small Outline Package, 8 leads) |
| Supply Voltage | 2.5 V to 6.0 V (I2C-bus), 1.0 V to 6.0 V (clock operation) |
| Operating Temperature | 0°C to +70°C |
| Memory | 16 bytes of RAM, with 8 bytes for clock/calendar and 8 bytes for alarm or free RAM |
| Oscillator Frequency | 32.768 kHz or 50 Hz |
| Interface | I2C-bus (two-line bidirectional) |
| Power Consumption | Typical 1 μA at fSCL = 0 Hz, 32 kHz time base, VDD = 2.0 V |
| Alarm and Timer | Programmable alarm, timer, and interrupt function |
Key Features
- I2C-bus interface for serial data transfer
- On-chip 32.768 kHz oscillator circuit
- Low power consumption
- 8 bytes of scratchpad RAM (when alarm not used)
- Data retention voltage: 1.0 V to 6.0 V
- External RESET input resets I2C interface only
- Clock function with four-year calendar
- Universal timer with alarm and overflow indication
- 24 hour or 12 hour format
- Programmable alarm, timer, and interrupt function
- Space-saving SO8 package
Applications
The PCF8593T/1,112 is suitable for a variety of applications that require accurate timekeeping and calendar functions, such as:
- Consumer electronics (e.g., clocks, timers, and calendar devices)
- Industrial control systems
- Automotive systems
- Medical devices
- Embedded systems requiring low power consumption
Q & A
- What is the primary function of the PCF8593T/1,112?
The primary function is to provide a low-power clock and calendar circuit with I2C-bus interface. - What is the operating supply voltage range for the I2C-bus interface?
The operating supply voltage range for the I2C-bus interface is 2.5 V to 6.0 V. - What is the typical power consumption of the PCF8593T/1,112?
The typical power consumption is 1 μA at fSCL = 0 Hz, 32 kHz time base, VDD = 2.0 V. - What types of oscillator frequencies are supported?
The PCF8593T/1,112 supports 32.768 kHz or 50 Hz oscillator frequencies. - Does the PCF8593T/1,112 have programmable alarm and timer functions?
Yes, it has programmable alarm, timer, and interrupt functions. - What is the package type of the PCF8593T/1,112?
The package type is SO8 (Small Outline Package, 8 leads). - What is the operating temperature range for the PCF8593T/1,112?
The operating temperature range is 0°C to +70°C. - How much RAM does the PCF8593T/1,112 have?
The PCF8593T/1,112 has 16 bytes of RAM, with 8 bytes for clock/calendar and 8 bytes for alarm or free RAM. - Is the PCF8593T/1,112 compliant with EU RoHS and REACH SVHC regulations?
Yes, it is compliant with EU RoHS and REACH SVHC regulations. - What interface does the PCF8593T/1,112 use for data transfer?
The PCF8593T/1,112 uses a two-line bidirectional I2C-bus interface for data transfer.
