EM785830AA
8-bit Micro-controller
Appendix I: Describe of EM78P5830A/AA (only list the difference between mask
and OTP)
The EM78P5830A is an 8-bit RISC type microprocessor with low power, high speed CMOS technology. There
are 16Kx13 bits Electrical One Time Programmable Read Only Memory (OTP-ROM) within it. It provides security bits
and some One time programmable Option bits to protect the OTP memory code from any external access as well as to
meet user’s options.
This integrated single chip has an on_chip watchdog timer (WDT), program OTP-ROM, data RAM,
programmable real time clock/counter, internal interrupt, power down mode, built-in three-wire SPI, dual PWM(Pulse
Width Modulation), 4-channel 10-bit A/D converter and tri-state I/O.
Feature
CPU
‧ Operating voltage : 2.2V~5.5V at main CLK less then 3.58MHz.
Main CLK(Hz)
Operating Voltage(min)
Under 3.58M
2.2
7.16M
2.5
10.74M
3
14.3M
3.6
‧ 16k x 13 on chip Electrical One Time Programmable Read Only Memory (OTP-ROM)
‧ 0.5k x 8 on chip data RAM
‧ Up to 21 bi-directional tri-state I/O ports(4 shared with AD input; 1 shared with external interrupt input )
‧ 16 level stack for subroutine nesting
‧ 8-bit real time clock/counter (TCC)
‧ two 8-bit counters : COUNTER1 and COUNTER2
‧ On-chip watchdog timer (WDT)
‧ 99.9％ single instruction cycle commands
‧ Three modes (Main clock can be programmed from 447.829k to 14.3MHz generated by internal PLL)
Mode
Sleep mode
Green mode
CPU status
Turn off
Turn on
Main clock
Turn off
Turn off
Turn on
32.768kHz clock status
Turn off
Turn on
Normal mode Turn on
Turn on
‧ 7 level Normal mode frequency : 447.8K , 895.7K , 1.79M , 3.58M , 7.16M , 10.75M and 14.3MHz.
‧ Input port interrupt function
‧ Dual clocks operation (Internal PLL main clock , External 32.768KHz)
SPI
‧ Serial Peripheral Interface (SPI) : a kind of serial I/O interface
‧ Interrupt flag available for the read buffer full,
‧ Programmable baud rates of communication
‧ Three-wire synchronous communication. (shared with IO)
PWM
‧ Dual PWM (Pulse Width Modulation) with 10-bit resolution
‧ Programmable period (or baud rate)
‧ Programmable duty cycle
ADC
‧ Operating : 2.5V∼ 5.5V
‧ 4 channel 10-bit successive approximation A/D converter
‧ Internal (VDD) or external reference
POR
‧ 2.0V Power-on voltage detector reset
PACKAGE
28 pin PDIP and SOP package(300 mil)
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* This specification is subject to be changed without notice.
39
12/1/2004 V1.6
ELAN [ ELAN MICROELECTRONICS CORP ]
