EM77950
BB Controller
Power consumption:
< 4 mA @ 3.3V, 6 MHz
< 60 μA @ 3.0V, (RC = 32.768 kHz)
< 1 μA standby current
52/44-pin QFP package
2.2 Oscillators/System Clocks
Three oscillator options:
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Crystal/Resonate oscillator of high frequency
PLL oscillator: 6MHz, 12 MHz, 24 MHz, and 48 MHz
(External crystal should be 6 MHz)
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External RC oscillator
Three modes of system clocks:
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Sleep mode
Green mode
Normal mode
Internal RC oscillator for Power-on Reset (POR) and Watchdog Timer (WDT)
2.3 Input and Output (I/O) Pins
40 I/O pins max.
Pull-up resistor options
Key Wake-up function
Open drain output options
2.4 Timers and Counters
Programmable 8-bit real Time Clock/Counter (TCC) with prescaler and overflow
interrupt
16-bit Free Run Counter (FRC) with overflow interrupt
2.5 Interrupt Sources and Features
Hardware priority check
Different interrupt vectors
Interrupts
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Key Wake-up function
External pin interrupt
16-bit Free Run Counter Overflow
TCC (time-base) overflow;
Read Buffer Full Interrupt in Serial Peripheral Interface (SPI)
An analog to digital converting (ADC) complete
One period of Pulse Width Modulation (PWM) complete
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Product Specification (V1.0) 10.09.2007
(This specification is subject to change without further notice)
ELAN [ ELAN MICROELECTRONICS CORP ]
