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CH554G

Description
Working voltage: - CPU digits: 8-Bit CPU core: E8051 Main frequency (MAX): 24MHz ROM type: FLASH 8-bit enhanced USB microcontroller
CategoryThe embedded processor and controller   
File Size615KB,54 Pages
ManufacturerWCH(Nanjing Qinheng Microelectronics)
Websitehttp://wch.cn/
Nanjing Qinheng Microelectronics Co., Ltd. focuses on the research of connection technology and microprocessor cores. It is an integrated circuit design company that builds chips based on self-developed professional interface IP and microprocessor core IP. The company is committed to providing customers with chips and solutions that connect everything and communicate with each other. Its main products include USB/Bluetooth/Ethernet interface chips and connection/interconnection/wireless MCUs. The products focus on connection, networking and control. The company's chip design focuses on tracing the origin, bottom-level construction and vertical specialization. First, key or common IP components such as cores and interfaces are studied, and then finished chips are built based on each IP component, supplemented by upper-layer protocol stack software and computer-side drivers, and finally professional products or solutions are formed. Among them, the combination of microprocessor cores and professional interface technology matrices such as USB has formed a rich product category. The independent IP system enhances the flexibility of the chip architecture and saves the cost of purchasing IP components. The company conducts in-depth research on underlying IP components and optimizes the connection between components, which improves the overall performance of the product, reduces power consumption, and improves efficiency, forming a long-term marginal cost advantage and sustainable competitiveness from the outside to the inside and from the core to the core. Main product brand: WCH, full name WinChipHead Product positioning: professional, easy to use Application areas: computer and mobile phone peripherals, industrial control, Internet of Things, etc.
Download Datasheet Parametric View All

CH554G Overview

Working voltage: - CPU digits: 8-Bit CPU core: E8051 Main frequency (MAX): 24MHz ROM type: FLASH 8-bit enhanced USB microcontroller

CH554G Parametric

Parameter NameAttribute value
Extra features-
UART/USART2 UART
SPI-
USB DeviceUSB transceivers and USB controllers
PWM2
USB Host/OTG-
LCD-
I2C(SMBUS/PMBUS)-
Operating Voltage-
Ethernet-
EEPROM size-
CAN-
A/D8 channel 4-bit
D/A-
CPU bits8-Bit
CPU coreE8051
ROM size16KB
RAM size256B iRAM ,1KB xRAM
Main frequency (MAX)24MHz
ROM typeFLASH
Number of I/Os-

CH554G Preview

Download Datasheet
CH554
手册
1
8
½增强型
USB
单片机
CH554、CH553
手册
版本:1B
http://wch.cn
1、概述
CH554
芯片是一款兼容
MCS51
指令集的增强型
E8051
内核单片机,
79%的指令是单字节单周期
指令,平均指令速度比标准
MCS51
8½15
倍。
CH554
支持最高
24MHz
系统主频,内½
16K
程序存储器
ROM
256
字节内部
iRAM
以及
1K
字节
片内
xRAM,xRAM
支持
DMA
直接内存存取。
CH554
内½了
ADC
模数½换、触摸按键电容检测、3 组定时器和信号捕捉及
PWM、双异步串口、
SPI
等功½模块,支持
USB-Host
主机模式和
USB-Device
设备模式。
CH553
CH554
的简化版,程序存储器
ROM
仅为
10K,片内 xRAM
仅为
512
字节,异步串口仅提
UART0,封装½式仅 SOP16,除上述差别之外与 CH554
相同,可直接参考
CH554
手册和资料。
下面为
CH554
的内部框图,仅供参考。
ROM 16KB
iFlash
Power-on
Reset
Watch-dog
Reset
Internal
Oscillator
DataFlash
128B
iRAM 256B
xRAM 1KB
Timer0
Timer1
Timer2
Cap1/2
PWM1
PWM2
UART0
UART1
1T
E8051 Core
XT
4xPLL
USB
Host/
Device
Internal Address & Data & DMA Bus
8-bit
Port3
8-bit
Port2
CMP
ADC
8-bit
Port1
XT
OSC
SPI0
M/S
Touch
Key
LDO VolReg 5V->3.3V
Pins: GND
VCC
V33 RST
P30~P37
P10~P17
2、特点
l
Core:增强型 E8051
内核,兼容
MCS51
指令集,其
79%的指令是单字节单周期指令,平均指令
l
l
l
l
速度比标准
MCS51
8½15
倍,特有
XRAM
数据快速复制指令,双
DPTR
指针。
ROM:16KB
容量的可多次编程的非易失存储器
ROM,可以全部用于程序存储空间;或者可以分
14KB
程序存储区和
2KB
引导代码
BootLoader/ISP
程序区。
DataFlash:128
字节可多次擦写的非易失数据存储器,支持以字节为单½改写数据。
RAM:256
字节内部
iRAM,可以用于快速数据暂存以及堆栈;1KB
片内
xRAM,可以用于大量数
据暂存以及
DMA
直接内存存取。
USB:内嵌 USB
控制器和
USB
收发器,支持
USB-Host
主机模式和
USB-Device
设备模式,支持
USB type-C
主从检测,支持
USB 2.0
全速
12Mbps
或者½速
1.5Mbps。支持最大 64
字节数据包,
内½
FIFO,支持 DMA。
Timer:3
组定时器,T0/T1/T2
为标准
MCS51
定时器。
l
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