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EnglishOTP-Based 8-Bit Microcontroller with LCD Driver The CX8P756 consists of Power-on Reset (POR), Brown-out Reset (BOR), Power-up Reset Timer (PWRT), Watchdog Timer, OTP, SRAM, tri-state I/O port, I/O p
目录
1.产品概述 2.产品特点 3.应用范围 4.技术规格书下载（PDF文档）</span>
5.产品封装 6.电路原理图</strong> 7.相关产品
The CX8P756 is a low-cost, high speed, high noise immunity, OTP-based 8-bit CMOS microcontrollers. It employs a RISC architecture with 54 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 CX8P756 consists of Power-on Reset (POR), Brown-out Reset (BOR), Power-up Reset
Timer (PWRT),Watchdog Timer, OTP, SRAM, tri-state I/O port, I/O pull-high control,Power
saving SLEEP mode, 3 real time programmable clock/counter, Interrupt, Wake-up from
SLEEP mode, and Code Protection for OTP products.
There are eight oscillator configurations to be chosen from, including the power-saving
LF (Low Frequency) oscillator and cost saving internal RC oscillator.
The CX8P756 address 2K×16 of program memory.
The CX8P756 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.
The CX8P756 provides total 8 channel 10bit AD converter with ±2LSB resolution.
The CX8P756 provides total 4 COM LCD pins, drive waveform is controlled by Software
Total 11 channel 10bit AD converter with ±2LSB resolution
All instructions are single cycle except for program branches which are two-cycles
14-bit wide instructions
Configurable CPU clock per instruction cycle: Focs/4 and Fosc/2
All EPROM area GOTO instruction
All EPROM area subroutine CALL instruction
8-bit wide data path
6-level deep hardware stack
1K x 14 bits on chip EPROM
27x8 bits on chip special purpose registers and 64 x 8 bits on chip general purpose registers (SRAM)
Operating speed: DC-20 MHz clock input, or DC-100 ns instruction cycle
Direct, indirect addressing modes for data accessing
Three real time down-count Timer with 3-bit programmable prescaler
- TMR1: 8-bit, PWM1(Period) & Timer
- TMR2: 8-bit, PWM1(Duty) & Timer
- TMR3: 8-bit Timer
Built-in 3 levels Low Voltage Detector (LVDT) for Brown-out Reset (BOR)
Power-up Reset Timer (PWRT)
On chip Watchdog Timer (WDT) with internal oscillator for reliable operation.
Two I/O ports IOA, and IOB with independent direction control
- 13 Bi-direction I/O port (Programmable Pull-up enable in Input mode)
- One Input only port (IOB3/RSTB)
Four kinds of interrupt source: 3 Timers, 8 external interrupt sources: IOB0~IOB7, Internal watchdog timer
(i_WDT) wakeup, and A/D end of conversion
Wake-up from SLEEP:
- Port B (IOB0~IOB7) pin change wakeup
- WDT overflow
- i_WDT overflow
Power saving SLEEP mode
Programmable Code Protection
Selectable oscillator options:
- ERC: External Resistor/ Voltage Controlled Oscillator
- XT: Crystal/Resonator Oscillator
- HF: High Frequency Crystal/Resonator Oscillator
- LF: Low Frequency Crystal Oscillator
- IRC: Internal Resistor/Capacitor Oscillator
Wide-operating voltage range:
- EPROM : 2.2V to 5.5V
CX8P756A : 24-pin OTP device
ŸCX8P756B : 20-pin OTP device
ŸCX8P756C : 16-pin OTP device
CX8P756D : 28-pin OTP device with VR pin
CX8P756E : 24-pin OTP device with VR pin
CX8P756F : 18-pin OTP device with VR pin
CX8P756G : 20-pin OTP device with VR pin
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ADC | |||||||||||||||
Product | ROM | RAM | I/O | Ext. | Int. | Wake | Stack | Timer | PWM / | ADC | LCD | Inter. | IRC | Package | Status |
Name | (Word) | (Byte) | Inte. | Inte. | up | IROUT | |||||||||
2K (OTP) | 128 | 18 | 8 | 7 | Yes | 8 | 8bit*4 16bit*1 | 8bit PWM*2 | 9CH1 | No | No | Yes | DIP/ SOP14 | MP | |
1K (OTP) | 64 | 14 | 8 | 4 | Yes | 6 | 8bit*3 | 8bit PWM*1 | 11CH 10bit+-2 | No | No | Yes | DIP/ SOP14 | MP | |
2K (OTP) | 96 | 22 | 8 | 5 | Yes | 8 | 8bit*3 | 8bit PWM*2 | 8CH 10bit+-2 | SW based 4*17(max) | No | Yes | DIP/ S | M | |
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