
EM785830AA
8-bit Micro-controller
__________________________________________________________________________________________________________________________________________________________________
* This specification is subject to be changed without notice.
12/1/2004 V1.6
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)
Under 3.58M
7.16M
Operating Voltage(min)
2.2
2.5
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
CPU status
Main clock
32.768kHz clock status
Sleep mode
Turn off
Turn off
Turn off
Green mode
Turn on
Turn off
Turn on
Normal mode
Turn on
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)
10.74M
3
14.3M
3.6