Overview
The PCA85073ADP/Q900Z is an automotive-grade Real-Time Clock (RTC) and calendar module produced by NXP USA Inc. This CMOS device is optimized for low power consumption and features a range of functionalities that make it suitable for various automotive applications. It includes an integrated 32.768 kHz oscillator, alarm functions, and a two-line I2C-bus interface for serial communication.
Key Specifications
| Parameter | Value |
|---|---|
| Package Type | TSSOP8 plastic thin shrink small outline package; 8 leads; body width 3 mm |
| Operating Voltage | 0.9 V to 5.5 V |
| Operating Temperature | -40°C to +105°C |
| Current Consumption | Typical 0.25 μA at VDD = 3.0 V and Tamb = 25°C |
| I2C-bus Interface | 400 kHz, two-line bidirectional |
| Oscillator Frequency | 32.768 kHz |
| Programmable Clock Output | 32.768 kHz, 16.384 kHz, 8.192 kHz, 4.096 kHz, 2.048 kHz, 1.024 kHz, and 1 Hz |
| Alarm Function | Yes, with minute and half minute interrupt |
| Internal Power-On Reset (POR) | Yes |
| ESD Protection | 4000 V Human-Body Model, 1000 V Charged-Device Model |
Key Features
- AEC-Q100 grade 2 compliant for automotive applications
- Provides year, month, day, weekday, hours, minutes, and seconds based on a 32.768 kHz quartz crystal
- Programmable clock output for peripheral devices
- Alarm function with minute and half minute interrupt
- Internal Power-On Reset (POR)
- High temperature operation range: -40°C to +105°C
- Selectable integrated oscillator load capacitors for CL = 7 pF or CL = 12.5 pF
- Countdown timer and oscillator stop detection function
- Programmable offset register for frequency adjustment
- Latch-up performance exceeds 100 mA per JESD 78, Class II
Applications
- Tracking time of the day in automotive systems
- Accurate timing in dashboard and infotainment units
- Air conditioning and center stack systems
- Telematics and body control modules
- Battery management systems
Q & A
- What is the PCA85073ADP/Q900Z?
The PCA85073ADP/Q900Z is an automotive-grade Real-Time Clock (RTC) and calendar module produced by NXP USA Inc. - What is the operating voltage range of the PCA85073ADP/Q900Z?
The operating voltage range is 0.9 V to 5.5 V. - What is the typical current consumption of the PCA85073ADP/Q900Z?
The typical current consumption is 0.25 μA at VDD = 3.0 V and Tamb = 25°C. - Does the PCA85073ADP/Q900Z have an alarm function?
Yes, it includes an alarm function with minute and half minute interrupt. - What is the temperature range for the PCA85073ADP/Q900Z?
The operating temperature range is -40°C to +105°C. - What type of interface does the PCA85073ADP/Q900Z use for serial communication?
The device uses a 400 kHz, two-line bidirectional I2C-bus interface. - Can the clock output be programmed?
Yes, the clock output can be programmed to various frequencies including 32.768 kHz, 16.384 kHz, 8.192 kHz, 4.096 kHz, 2.048 kHz, 1.024 kHz, and 1 Hz. - Does the PCA85073ADP/Q900Z have ESD protection?
Yes, it has ESD protection exceeding 4000 V Human-Body Model and 1000 V Charged-Device Model. - What package type is the PCA85073ADP/Q900Z available in?
The device is available in a TSSOP8 plastic thin shrink small outline package. - What are some common applications of the PCA85073ADP/Q900Z?
Common applications include tracking time of the day, accurate timing in dashboard and infotainment units, air conditioning, center stack systems, telematics, and body control modules.
