|
EM73A83 Datasheet, PDF (1/40 Pages) ELAN Microelectronics Corp – 4-BIT MICRO-CONTROLLER FOR LCD PRODUCT | |||
|
GENERAL DESCRIPTION
EM73A83
4-BIT MICRO-CONTROLLER FOR LCD PRODUCT
Preliminary
EM73A83 is an advanced single chip CMOS 4-bit micro-controller. It contains 16K-byte ROM, 500-nibble
RAM, 4-bit ALU, 13-level subroutine nesting, 22-stage time base, two 12-bit timer/counters for the kernel
function. EM73A83 also equipped with 6 interrupt sources, 3 I/O ports (including 1 input port and 2 bidirection
ports), LCD display (40x16), built-in sound generator and speech synthesizer.
It's low power consumption and high speed feature are further strengten with DUAL, SLOW, IDLE and STOP
operation mode for optimized power saving.
FEATURES
⢠Operation voltage
: 2.2V to 4.8V.
⢠Clock source
: Dual clock system. Low-frequency oscillator is 32 KHz Crystal oscillator or RC
oscillator by mask option and high-frequency oscillator is a built-in internal
oscillator (4.6 MHz).
⢠Instruction set
: 107 powerful instructions.
⢠Instruction cycle time : 1.7µs for 4.6M Hz (high speed clock).
244µs for 32768 Hz (low speed clock).
⢠ROM capacity
: 16K x 8 bits.
⢠RAM capacity
: 500 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).
⢠Bidrection port
: 2 ports (P4, P8). IDLE/STOP release function for P8(0..3) is available by mask
option.
⢠Built-in watch-dog-timer counter : It 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 interrupt . . . . . . 2 input interrupt sources.
Internal interrupt . . . . . . 2 timer overflow interrupts, 1 time base interrupt.
1 speech interrupt.
⢠LCD driver
: 40x16 dots, 1/16 duty, 1/5 bias with voltage multiplier.
⢠Sound effect
: Tone generator and random generator.
⢠Speech synthesizer
: 160K speech data ROM (use as 160K nibbles data ROM).
⢠Power saving function : SLOW, IDLE, STOP operation modes.
⢠Package type
: Chip form 85 pins.
* This specification are subject to be changed without notice.
10.31.2000 1
|
▷ |