參數(shù)資料
型號(hào)： EM73883
廠商： ELAN Microelctronics Corp .
英文描述： Single Chip CMOS 4-Bit Micro-Controller for LCD Product(用于LCD產(chǎn)品的單片CMOS 4位微控制器)
中文描述： 單芯片的CMOS 4位微控制器的LCD產(chǎn)品（用于液晶顯示器產(chǎn)品的單片的CMOS 4位微控制器）
文件頁(yè)數(shù)： 1/39頁(yè)
文件大小： 211K
代理商： EM73883
1
* This specification are subject to be changed without notice.
EM73883
4-BIT MICRO-CONTROLLER FOR LCD PRODUCT
7.1.1998
Preliminary
GENERAL DESCRIPTION
EM73883 is an advanced single chip CMOS 4-bit micro-controller. It contains 8K-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. EM73883 also equipped with 6 interrupt sources, 3 I/O ports (including 1 input port and 2 bidirection
ports), LCD display (40x8), 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
Clock source
: 2.2V to 3.6V.
: Dual clock system. Low-frequency oscillator is 32 KHz Crystal oscillator and
high-frequency oscillator is a built-in internal oscillator (4.6 MHz).
: 107 powerful instructions.
: 1.7
μ
s for 4.6M Hz (high speed clock) .
244
μ
s for 32768 Hz (low speed clock).
: 8K x 8 bits.
: 372 x 4 bits.
: 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).
: 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.
Instruction set
Instruction cycle time
ROM capacity
RAM capacity
Input port
Bidrection port
1 speech interrupt.
LCD driver
Sound effect
Speech synthesizer
Power saving function
Package type
: 40x8 dots, 1/8 duty, 1/4 bias.
: Tone generator and random generator.
: 64K speech data ROM (use as 64K nibbles data ROM).
: SLOW, IDLE, STOP operation modes.
: Chip form 73 pins.
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