产品导览

OTP Low Pin-Count MCU Series

EM78P141

产品资讯

封装尺寸

联络我们

一般描述

特征

General Description

The EM78P141 is an 8-bit microprocessor designed and developed with low-power and high-speed CMOS technology. It has an on-chip 1K x 13-bit Electrical One Time Programmable Read Only Memory (OTP-ROM). It provides a protection bit to prevent intrusion of user's code. Three Code option words are also available to meet user's requirements.
With its enhanced OTP-ROM feature, the EM78P141 provides a convenient way of developing and verifying user's programs. Moreover, this OTP device offers the advantages of easy and effective program updates, using development and programming tools. User can avail of the ELAN Writer to easily program his development code.

Features

CPU configuration

1K x 13 bits on-chip ROM

48 x 8 bits on-chip registers (SRAM)

8-level stacks for subroutine nesting

4 programmable level voltage detector

(LVD) : 4.5V, 4.0V, 3.3V, 2.2V

3 programmable level voltage reset

(LVR) : 4.0V, 3.5V, 2.7V

Less than 1.5 mA at 5V/4MHz

Typically 15 uA, at 3V/32kHz

Typically 2 uA, during Sleep mode

I/O port configuration

1 bidirectional I/O ports

Wake-up port : P5

7 Programmable pull-down I/O pins

7 programmable pull-high I/O pins

7 programmable open-drain I/O pins

External interrupt : P52

Operating voltage range

Operating voltage: 2.1V~5.5V (Commercial)

Operating temperature: 0C ~70C (Commercial)

Operating frequency range

Crystal mode:

DC~16MHz/2clks @4.5V

DC~8MHz/2clks @ 3V

DC~4MHz/2clks @ 2.1V

ERC mode:

DC~16 MHz/2clks @ 4.5V

DC~12 MHz/2clks @ 4V

DC~4 MHz/2clks @ 2.1V

IRC mode:

Oscillation mode : 4 MHz, 8 MHz, 16 MHz, 455kHz

Internal RC Frequency	Drift Rate
Internal RC Frequency	Temperature( 0C ~70C )	Voltage(2.3V~2.5V)	Process	Total
4 MHz	∮3%	∮5%	∮3%	∮11%
8 MHz	∮3%	∮5%	∮3%	∮11%
16 MHz	∮3%	∮5%	∮3%	∮11%
455kHz	∮3%	∮5%	∮3%	∮11%

All the four main frequencies can be trimmed by programming with four calibrated bits in the ICE143 Simulator. OTP is auto trimmed by ELAN Writer.

Peripheral configuration

8-bit real time clock/counter (TCC) with selective signal sources, trigger edges, and overflow interrupt

7-channel Analog-to-Digital Converter with 10-bit resolution in Vref mode

Two Pulse Width Modulation (PWM) with 8-bit resolution, each provides 8-bit real time clock / counter function and supports 16-bit cascaded mode from these two independent ones

One pair of comparators(Offset voltage : 5mV , max offset voltage : 10mV)

Power-down (Sleep) mode

High EFT immunity

Seven available interrupts:

TCC overflow interrupt

Input-port status changed interrupt (wake-up from sleep mode)

External interrupt

ADC completion interrupt

PWM period match completion

Comparators status change interrupt

Low voltage detector interrupt

Programmable free running Watchdog Timer

Two clocks per instruction cycle

Watchdog timer 16.5ms ∮ 30% in Vdd = 5V at 25C (WDTPS=1 in Option pin)

Watchdog timer 18ms ∮ 30% in Vdd = 3V at 25C (WDTPS=1 in Option pin)

Watchdog timer 4.2ms ∮ 30% in Vdd = 5V at 25C (WDTPS=0 in Option pin)

Watchdog timer 4.5ms ∮ 30% in Vdd = 3V at 25C (WDTPS=0 in Option pin)

Package type:

10-pin MSOP 118 mil : EM78P141MS10

Note: Green products do not contain hazardous substances.