at76c114 ATMEL Corporation, at76c114 Datasheet - Page 5

• Manufacturer Part Number: at76c114
• Description: Highperformance Digital/video Camera Processor At76c114 Summary
• Manufacturer: ATMEL Corporation

Technology
5674BS–IMAGE–09/04
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A real-time clock is provided to keep track of the time. It operates on its own power
supply, so the clock can keep running with very low power consumption even if the
rest of the chip is unpowered. Two pins are provided to control system power
switching.
The device provides a keyboard interface that can monitor up to 25 buttons.
The device provides up to 8 external interrupt pins, depending on the system
configuration, which can be handled by the interrupt controller as either edge or
level sensitive.
Up to 130 pins can also be configured as GPIOs, depending on the system
application.
During normal operation, the power consumption may be minimized by disabling the
clock of any internal module that is not in use. In order to further reduce power
consumption, the main CPU clock can be divided to run at a slower speed. In order
to minimize power consumption when the device is not in use, a “sleep mode” is
available that halts the operation of all logic and shuts down the oscillators and
PLLs. Recovery from sleep mode occurs via the WKP (“wakeup”) pin, at which time
the device begins execution from its previous state.
The device is fabricated in a 0.18 micron process. It is expected that the device will
operate at less than 70 mA when fully active (video compression/decompression).
The core logic requires a 1.8V power supply. Most I/O pads require 3.3V supplies, a
few interfaces use 1.8V supplies, and the DDR interface requires a 2.5V supply.
The package is a 280-ball BGA.
AT76C114
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