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부품번호 | EM78P157N 기능 |
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기능 | 8-Bit Microcontroller | ||
제조업체 | ELAN Microelectronics | ||
로고 | |||
EM78P157N
8-Bit Microcontroller
with OTP ROM
Product
Specification
Doc. Version 1.0
ELAN MICROELECTRONICS CORP.
September 2005
Contents
4.7 Oscillator ............................................................................................................ 23
4.7.1 Oscillator Modes ............................................................................................... 23
4.7.1.1 Oscillator Modes Defined by OSC, HLF, and HLP ............................ 23
4.7.1.2 The Summary of Maximum Operating Speeds ................................. 23
4.7.2 Crystal Oscillator/Ceramic Resonators (XTAL) ................................................ 23
4.7.2.1 Capacitor Selection Guide for Crystal Oscillator or
Ceramic Resonator............................................................................ 24
4.7.3 External RC Oscillator Mode ............................................................................ 25
4.7.3.1 RC Oscillator Frequencies................................................................. 26
4.8 CODE Option Register ...................................................................................... 26
4.8.1 Code Option Register (Word 0) ........................................................................ 26
4.8.2 Customer ID Register (Word 1) ........................................................................ 27
4.9 Power-On Considerations.................................................................................. 28
4.10 External Power-On Reset Circuit...................................................................... 28
4.11 Residual-Voltage Protection .............................................................................. 29
4.12 Instruction Set .................................................................................................... 30
4.13 Timing Diagrams ................................................................................................ 32
4.13.1 AC Test Input/Output Waveform ....................................................................... 32
4.13.2 RESET Timing (CLK = ”0”) ............................................................................... 32
4.13.3 TCC Input Timing (CLKS = ”0”) ........................................................................ 32
5 Absolute Maximum Ratings ....................................................................... 33
6 Electrical Characteristics ........................................................................... 33
6.1 DC Electrical Characteristic ............................................................................... 33
6.2 AC Electrical Characteristics ............................................................................. 34
6.3 Device Characteristics ....................................................................................... 35
6.3.1 Port 6 Vih/Vil vs. VDD (Input Pin with Schmitt Inverter) ................................... 35
6.3.2 Port 5 Input Threshold Voltage (Vth) vs. VDD .................................................. 35
6.3.3 Ports 5 & Port 6 Voh vs. Ioh, VDD=5V and 3V................................................. 36
6.3.4 Ports 5 & Port 6 Vol vs. Iol, VDD=5V and 3V ................................................... 36
6.3.5 WDT Time Out Period vs. VDD (Prescaler Set to 1:1) ..................................... 37
6.3.6 Typical RC OSC Frequency vs. VDD (Cext = 100pF, Temp. = 25℃).............. 38
6.3.7 Typical RC OSC Frequency vs. VDD
(with R and C under Ideal Conditions) ............................................................. 38
6.3.8 Typical and Maximum Operating Current
(ICC1/2/3/4) vs. Temperature ........................................................................... 39
6.3.9 Typical and Maximum Standby Current
(ISB1 and ISB2) vs. Temperature..................................................................... 41
6.3.10 Operating Voltage under Temperature Range of 0°C to 70°C
and –40°C to 85°C............................................................................................ 42
6.3.11 Operating Current Range (Based on High and Low Freq. @ =25℃)
vs. Voltage ........................................................................................................ 43
iv • Product Specification (V1.0) 09.22.2005
4페이지 EM78P157N
8-Bit Microcontroller with OTP ROM
1 General Description
EM78P157N is an 8-bit microprocessor designed and developed with low-power,
high-speed CMOS technology. It is equipped with 1K*13-bits Electrical One Time
Programmable Read Only Memory (OTP-ROM). It provides three PROTECTION bits
to prevent user’s code in the OTP memory from being intruded. Eight OPTION bits are
also provided to meet user’s additional requirements.
With its OTP-ROM feature, the EM78P157N is able to offer a convenient way of
developing and verifying user’s programs. Moreover, user can take advantage of
ELAN DWriter to easily program his development code.
2 Features
Operating voltage range: 2.5V~5.5V
Operating temperature range: -40°C~85°C
Operating frequency range (base on 2 clocks ):
• Crystal mode: DC~20MHz at 5V, DC~8MHz at 3V, DC~4MHz at 2.5V.
• ERC mode: DC~4MHz at 5V, DC~4MHz at 3V, DC~4MHz at 2.5V.
Low power consumption:
• Less then 2 mA at 5V/4MHz
• Typically 20 μA at 3V/32KHz
• Typically 1 μA during sleep mode
1K × 13 bits on chip ROM
One security register to prevent intrusion of OTP memory codes
One configuration register to accommodate user’s 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
Product Specification (V1.0) 09.22.2005
(This specification is subject to change without further notice)
•1
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부품번호 | 상세설명 및 기능 | 제조사 |
EM78P157N | 8-Bit Microcontroller | ELAN Microelectronics |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |