CX8PE51E CX8PE51E系列是一系列低成本、高速、高抗噪、基于EPROM/ROM的8位CMOS微控制器。它采用了只有47条指令的RISC架构。所有指令都是单周期的，除了需要两个周期的程序分支。易于使用和记忆的指令集大大缩短了开发时间。CX8PE51E系列包括上电复位（POR）、断电复位（BOR）、上电复位定时器（PWRT）、振荡器启动定时器（OST）、看门狗定时器、EPROM/ROM、SRAM、三态I/O端口、I/O拉高/开漏控制、省电睡眠模式、4实时可编程时钟/计数器、中断、SPI、RFC、数据比较、从睡眠模式唤醒，以及EPROM产品的代码保护。有三种振荡器配置可供选择，包括省电的LP（低功耗）振荡器和节省成本的RC振荡器。CX8PE51E系列地址为程序存储器4K×13。CX8PE51E系列可直接或间接寻址其寄存器文件和数据存储器。包括程序计数器在内的所有特殊功能寄存器都映射到数据存储器中
·所有指令都是单周期的，除了两个周期的程序分支
·13位宽指令
·8位宽数据通道
·5层深度硬件堆栈
·4K x 13位片上EPROM/ROM
·140 x 8位片上通用寄存器（SRAM）
·工作速度：DC-20MHz时钟输入DC-100ns指令周期
·数据访问的直接、间接寻址模式
·一个8位实时时钟/计数器（定时器0），带8位可编程预分频器
·三个8位实时时钟/计数器（Timer1、Timer2和Timer3），具有周期设置
·内部通电复位（POR）
·内置低压探测器（LVD），用于褐化复位（BOR）
·通电复位定时器（PWRT）和振荡器启动定时器（OST）
·带内部振荡器的片上看门狗定时器（WDT），用于可靠操作和软件看门狗启用/禁用控制
·5个带独立方向控制的I/O端口（38个I/O引脚）
·32个可编程拉高输入引脚
·12个唤醒针
·2个开口销
·2个R选项管脚
·具有高驱动能力的时钟输出
·19路15位分辨率电阻至变频器（RFC）输出
·2路最大10位分辨率脉冲宽度调制（PWM）输出
内置8位数据比较器
·七个内部中断源：Timer0溢出、Timer1匹配、Timer2匹配、Timer3匹配、SPI模块（接收和传输）、RFC模块；一个外部中断源：INT pin change
·通过端口输入更改从睡眠中醒来
·省电睡眠模式
·可编程代码保护
内置RC振荡器，带外部电阻
·可选振荡器选项：
-外部电阻/电容振荡器
-外部电阻/内部电容振荡器
-高频晶体/谐振器振荡器
-XT：晶体/谐振器振荡器
-低频晶体振荡器
·宽工作电压范围：
-EPROM:2.3V至5.5V
-ROM:2.3V至5.5V
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[ CX8PE51E ]
目录
产品概述 返回TOP
The CX8PE51 CX8PE51E series is a family of low-cost, high speed, high noise immunity, EPROM/ROM-based 8-bit CMOS microcontrollers. It employs a RISC architecture with only 47 instructions. All instructions are single cycle except for program branches which take two cycles. The easy to use and easy to remember instruction set reduces development time significantly. The CX8PE51E series consists of Power-on Reset (POR), Brown-out Reset (BOR), Power-up Reset Timer (PWRT), Oscillator Start-up Timer(OST), Watchdog Timer, EPROM/ROM, SRAM, tri-state I/O port, I/O pull-high/open-drain control, Power saving SLEEP mode, 4 real time programmable clock/counter, Interrupt, SPI, RFC, data compare, Wake-up from SLEEP mode, and Code Protection for EPROM products. There are three oscillator configurations to choose from, including the power-saving LP (Low Power) oscillator and cost saving RC oscillator. The CX8PE51E series address 4K×13 of program memory. The CX8PE51E series can directly or indirectly address its register files and data memory. All special function registers including the program counter are mapped in the data memory.
产品特点 返回TOP
‧ Only 47 single word instructions
‧ All instructions are single cycle except for program branches which are two-cycle
‧ 13-bit wide instructions
‧ 8-bit wide data path
‧ 5-level deep hardware stack
‧ 4K x 13 bits on chip EPROM/ROM
‧ 140 x 8 bits on chip general purpose registers (SRAM)
‧ Operating speed: DC-20 MHz clock input DC-100 ns instruction cycle
‧ Direct, indirect addressing modes for data accessing
‧ One 8-bit real time clock/counter (Timer0) with 8-bit programmable prescaler
‧ Three 8-bit real time clock/counter (Timer1, Timer2, and Timer3) with period setting
‧ Internal Power-on Reset (POR)
‧ Built-in Low Voltage Detector (LVD) for Brown-out Reset (BOR)
‧ Power-up Reset Timer (PWRT) and Oscillator Start-up Timer(OST)
‧ On chip Watchdog Timer (WDT) with internal oscillator for reliable operation and soft-ware watch-dog enable/disable control
‧ Five I/O ports (38 I/O pins) with independent direction control
‧ 32 programmable pull-high input pins
‧ 12 wake-up pins
‧ 2 open-drain pins
‧ 2 R-option pins
‧ Clock output with high driving ability
‧ 19 channels of 15-bit resolution Resistor to Frequency Converter (RFC) output
‧ 2 channels of maximum 10-bit resolution Pulse Width Modulation (PWM) output
‧ Built-in 8-bit data comparator
‧ Seven internal interrupt source: Timer0 overflow, Timer1 match, Timer2 match, Timer3 match, SPI module (Receive & Transmit), RFC module; One external interrupt source: INT pin change
‧ Wake-up from SLEEP by port input change
‧ Power saving SLEEP mode
‧ Programmable Code Protection
‧ Built-in RC oscillator with external resistor
‧ Selectable oscillator options:
- ERC: External Resistor/Capacitor Oscillator
- ERIC: External Resistor/Internal Capacitor Oscillator
- HF: High Frequency Crystal/Resonator Oscillator
- XT: Crystal/Resonator Oscillator
- LF: Low Frequency Crystal Oscillator
‧ Wide-operating voltage range:
- EPROM : 2.3V to 5.5V
- ROM : 2.3V to 5.5V
应用范围 返回TOP
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GPIO |
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|
Product Name |
ROM |
RAM |
I/O |
Ext. |
Int. |
Wake up |
Stack |
Timer |
PWM / |
ADC |
LCD |
Interface |
IRC |
Package |
Status |
|
(Word) |
(Byte) |
Inte. |
Int. |
IROUT |
|||||||||||
|
4K(MASK ROM) |
140 |
38 |
1 |
7 |
Yes |
5 |
8bit*4 |
10bit PWM*2 |
15bit RFC*19 |
No |
SPI |
No |
DIP40/QFP44 |
MP |
|
|
4(MASK ROM) |
144 |
24 |
2 |
1 |
Yes |
5 |
8bit*1 |
No |
No |
No |
No |
Yes |
DIO/SOP |
MP |
|
|
4K(OTP) |
140 |
38 |
1 |
7 |
Yes |
5 |
8bit*4 |
10bit PWM*2PWM*2 |
15bit RFC*19 |
No |
SPI |
No |
DIP40/QFP44 |
MP |
|
|
1K(OTP) |
49 |
16 |
2 |
1 |
Yes |
5 |
8bit*1 |
No |
No |
No |
No |
Yes |
DIP/SOP18/SSOP20 |
MP |
|
|
512(OTP) |
48 |
20 |
1 |
1 |
Yes |
5 |
8bit*1 |
No |
No |
No |
No |
Yes |
DIP/SOP/SSOP28 |
MP |
|
|
2K(OTP) |
96 |
20 |
1 |
1 |
Yes |
5 |
8bit*1 |
No |
No |
No |
No |
Yes |
DIP/SOP/SSOP28 |
MP |
|
|
4K(OTP) |
144 |
24 |
2 |
4 |
Yes |
5 |
8bit*2 |
IROUT |
No |
No |
SPI |
Yes |
DIP/SOP/SSOP2 8/DIP/SOP32 |
MP |
|
|
1K(OTP) |
49 |
12 |
2 |
1 |
Yes |
5 |
8bit*1 |
No |
No |
No |
No |
Yes |
DIP14/SOP14 |
MP |
|
|
1K |
49 |
16 |
2 |
1 |
Yes |
5 |
8bit*1 |
No |
No |
No |
No |
Yes |
DIP/SOP18 |
MP |
|
|
1K(OTP) |
49 |
12 |
2 |
1 |
Yes |
5 |
8bit*1 |
No |
No |
No |
No |
Yes |
DIP14/SOP1 |
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