EM78156E数据手册Elan中文资料规格书

描述 Description

EM78156E is an 8-bit microprocessor with low-power and high-speed CMOS technology. Integrated into a single chip are on-chip watchdog timer (WDT), RAM, ROM, real time clock/counter, external and interrupt, power down mode, and tri-state I/O.

特性 Features

Operating voltage range : 2.3V~5.5V
Operating temperature range: 0C~70C
Operating frequency rang (base on 2 clocks ):
* Crystal mode: DC~20MHz at 5V, DC~8MHz at 3V, DC~4MHz at 2.3V.
* ERC mode: DC~4MHz at 5V, DC~4MHz at 3V, DC~4MHz at 2.3V.
Low power consumption:
* Less then 2.0 mA at 5V/4MHz
* Typically 15 µA at 3V/32KHz
* Typically 1 µA during sleep mode
1K x 13 bits on chip ROM
One configuration register to accommodate userˇs requirements
48⊙ 8 bits on chip registers (SRAM, general purpose register)
2 bi-directional I/O ports
5 level stacks for subroutine nesting
8-bit real time clock/counter (TCC) with selective signal sources, trigger edges, and
overflow interrupt
Two clocks per instruction cycle
Power down (SLEEP) mode
Three available interruptions
* TCC overflow interrupt
* Input-port status changed interrupt (wake up from sleep mode)
* External interrupt
Programmable free running watchdog timer
8 programmable pull-high pins
7 programmable pull-down pins
8 programmable open-drain pins
2 programmable R-option pins
Package types:
* 18 pin DIP 300mil : EM78156E
* 18 pin SOP(SOIC) 300mil : EM78156E
* 20 pin SSOP 209mil : EM78156E
* 20 pin SSOP 209mil : EM78156E
99.9% single instruction cycle commands
The transient point of system frequency between HXT and LXT is around 400KHz