EM77950
BB Controller
1 General Description
The EM77950 from ELAN Electronics is a low-cost and high performance 8-bit CMOS
advance RISC architecture microcontroller device. It has an on-chip 1-Mbps RF driver
module/Base Band (BB), Serial Peripheral Interface (SPI), dual Pulse Width
Modulation (PWM) with 16-bit resolution, an 8-bit Timer Clock Counter (TCC) and a
16-bit Free Run Timer, multi-channel Analog to Digital Converter (ADC) with 8-bit
resolution, Key Wake-up function (KWU), Power-on Reset (POR), Watchdog Timer
(WDT), and power saving Sleep Mode. All these features combine to ensure
applications require the least external components, hence, not only reduce system cost,
but also have the advantage of low power consumption and enhanced device
reliability.
The 52-pin EM77950 is available in a very cost-effective version that provides a single
chip solution in designing wireless products.
2 Features
2.1 Core
Operating Voltage Range: 2.2V ~ 3.6V DC (ADC reference volt 3V)
Operating Temperature Range: 0°C ~ 70°C
Operating Frequency Range: DC ~ 48MHz (1 clock/cycle)
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6MHz external clock source
6/12/24/48 MHz to Core clock
6/12/24/48 MHz to clock
Internal Memory
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12K x 16 bits of on-chip Program ROM
896 x 8 bits of on-chip Register (SRAM)
Watchdog Timer (WDT)
32 level stacks for both CALL and interrupt subroutine
Internal Power-on Reset (POR) function
Code protection function available
All single cycle (1 clock) instruction except for conditional branches which are two or
three cycles.
Direct, indirect and relative addressing modes
Low power, high speed CMOS technology
Product Specification (V1.0) 10.09.2007
(This specification is subject to change without further notice)
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ELAN [ ELAN MICROELECTRONICS CORP ]
