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EM73963A Datasheet, PDF (1/38 Pages) ELAN Microelectronics Corp – 4-BIT MICRO-CONTROLLER FOR LCD PRODUCT | |||
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EM73963A
4-BIT MICRO-CONTROLLER FOR LCD PRODUCT
GENERAL DESCRIPTION
EM73963A is an advanced single chip CMOS 4-bit micro-controller. It contains 16K-byte ROM, 372-nibble
RAM, 4-bit ALU, 13-level subroutine nesting, 22-stage time base, two 12-bit timer/counters for the kernel
function. EM73963A also equipped with 5 interrupt sources, 3 I/O ports (including 1 input port and 2 bidirection
ports), LCD display (40x8), built-in sound generator.
It's low power consumption and high speedfeature are further strengten with DUAL, SLOW, IDLE and STOP
operation mode for optimized power saving.
FEATURES
 Operation voltage : 2.4V to 5.5V.
 Clock source
: Dual clock system. Low-frequency oscillator is Crystal or RC oscillator (32KHz,
connect a external resistor) by mask option and high-frequency oscillator is RC
oscillator (connect a external resistor and a capacitor).
External clock and internal clock is available by mask option.
 Oscillation frequency : 480K, 1M, 2M and 4M Hz are both available for high frequency clock by mask option.
 Instruction set
: 107 powerful instructions.
 Instruction cycle time : Up to 2 µs for 4 MHz (high speed clock).
244 µs for 32768 Hz (low speed clock).
 ROM capacity
: 16K X 8 bits.
 RAM capacity
: 372 X 4 bits.
 Input port
: 1 port (P0.0-P0.3), IDLE/STOP releasing function is available by mask option.(each
input pin has a pull-up and pull-down resistor available by mask option).
 Bidirection port
: 2 ports (P4, P8). P4.0 and SOUND are available by mask option. IDLE/STOP release
function for P8(0..3) is available by mask option.
 12-bit timer/counter : Two 12-bit timer/counters are programmable for timer, event counter and pulse width
measurement mode.
 Built-in time base counter : 22 stages.
 Subroutine nesting : Up to 13 levels.
 Interrupt
: External . . . . . 2 input interrupt sources.
Internal . . . . . . 2 Timer overflow interrupts.
1 Time base interrupt.
 LCD driver
: 40 X 8 dots, 1/8 duty, 1/5 bias.
 Sound effect
: Tone generator, random generator and volume control.
 Power saving function :SLOW, IDLE, STOP operation modes.
 Package type
: Chip form 69 pins.
* This specification are subject to be changed without notice.
6.14.2001 1
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