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EM73880 Datasheet(PDF) 1 Page - ELAN Microelectronics Corp |
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EM73880 Datasheet(HTML) 1 Page - ELAN Microelectronics Corp |
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1 / 40 page  1 * This specification are subject to be changed without notice. EM73880 EM73880 EM73880 EM73880 EM73880 4-BIT MICRO-CONTROLLER FOR LCD PRODUCT 4-BIT MICRO-CONTROLLER FOR LCD PRODUCT 4-BIT MICRO-CONTROLLER FOR LCD PRODUCT 4-BIT MICRO-CONTROLLER FOR LCD PRODUCT 4-BIT MICRO-CONTROLLER FOR LCD PRODUCT 11.30.2001 Preliminary Preliminary Preliminary Preliminary Preliminary GENERAL DESCRIPTION GENERAL DESCRIPTION GENERAL DESCRIPTION GENERAL DESCRIPTION GENERAL DESCRIPTION EM73880 is an advanced single chip CMOS 4-bit micro-controller. It contains 8K-byte ROM, 244-nibble RAM, 4-bit ALU, 13-level subroutine nesting, 22-stage time base, two 12-bit timer/counters for the kernel function. EM73880 also contains 6 interrupt sources, 1 input port, 2 bidirection ports, LCD display (32x4), and one high speed timer/counter,sound generator, and speech synthesizer. EM73880 has plentiful operating modes (SLOW, IDLE, STOP) intended to reduce the power consumption. FEATURES FEATURES FEATURES FEATURES FEATURES • Operation voltage : 2.4V to 3.6V. • Clock source : Dual clock system. Low-frequency oscillator (32.768 KHz) could be Crystal or RC oscillator high-frequency oscillator is a built-in for 4.6 MHz. • Instruction set : 107 powerful instructions. • Instruction cycle time : 1.7us for 4.6 MHz (high speed clock). 244 µs for 32768 Hz (low speed clock). • ROM capacity : 8192 X 8 bits. • RAM capacity : 244 X 4 bits. • Input port : 1 port (P0). P0(0..3) and IDLE releasing function are available by mask option. • Bidirection port : 2 ports (P4, P8). P4.1 is shared with HTC external input. P8(0..3) and IDLE releasing function are available by mask option. • 12-bit timer/counter : Two 12-bit timer/counters are programmable for timer, event counter and pulse width measurement. • High speed timer/counter : One 8-bit high speed timer/counters is programmable for auto load timer, melody output and pulse width measurement. • Speech synthesizer : 160K Speech ROM. • Built-in time base counter : 22 stages. • Subroutine nesting : Up to 13 levels. • Interrupt : External . . . . . 1 input interrupt sources. Internal . . . . . . 2 Timer overflow interrupts, 1 time base interrupt. 1 high speed timer/counter overflow interrupt. 1 Speech ending interrupt. • LCD driver : 32 X 4 dots, 1/4,1/3,1/2, static 4 kinds of duty Type selectable, 1/2 bias, 1/3 bias, 2 kinds bias Type selectable. • Power saving function : SLOW, IDLE, STOP operation mode. • Package type : Chip form. . . . .63 pins. APPLICATIONS APPLICATIONS APPLICATIONS APPLICATIONS APPLICATIONS EM73880 is suitable for application in family applicance, consumer products, hand held games and the toy controller. |
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