參數(shù)資料
型號: UPD78F9222CS-CAC-A
廠商: Renesas Electronics America
文件頁數(shù): 108/125頁
文件大?。?/td> 0K
描述: MCU 8BIT 4KB FLASH 20PIN
標(biāo)準(zhǔn)包裝: 400
系列: 78K0S/Kx1+
核心處理器: 78K0S
芯體尺寸: 8-位
速度: 10MHz
連通性: LIN,UART/USART
外圍設(shè)備: LVD,POR,PWM,WDT
輸入/輸出數(shù): 15
程序存儲器容量: 4KB(4K x 8)
程序存儲器類型: 閃存
RAM 容量: 256 x 8
電壓 - 電源 (Vcc/Vdd): 2 V ~ 5.5 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 4x10b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 20-DIP(0.300",7.62mm)
包裝: 托盤
CHAPTER 5 CLOCK GENERATORS
User’s Manual U16898EJ6V0UD
81
(a) The internal reset signal is generated by the power-on-clear function on power application, the option byte is
referenced after reset, and the system clock is selected.
(b) The option byte is referenced and the system clock is selected. Then the high-speed internal oscillation
clock operates as the system clock.
Figure 5-9. Status Transition of Default Start by High-Speed internal oscillation
HALT
instruction
STOP
instruction
VDD > 2.1 V (TYP.)
Start with PCC = 02H,
PPCC = 02H
HALT
STOP
Interrupt
Reset signal
Interrupt
Power
application
Reset by
power-on-clear
High-speed internal
oscillator selected
by option byte
Clock division ratio
variable during
CPU operation
Remark
PCC:
Processor clock control register
PPCC: Preprocessor clock control register
(2) Crystal/ceramic oscillator
If crystal/ceramic oscillation is selected by the option byte, a clock frequency of 2 to 10 MHz can be selected and
the accuracy of processing is improved because the frequency deviation is small, as compared with high-speed
internal oscillation (8 MHz (TYP.)).
Figures 5-10 and 5-11 show the timing chart and status transition diagram of default start by the crystal/ceramic
oscillator.
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UPD78F9222MC-5A4-A 功能描述:MCU 8BIT 4KB FLASH 20PIN RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器, 系列:78K0S/Kx1+ 標(biāo)準(zhǔn)包裝:300 系列:78K0R/Ix3 核心處理器:78K/0R 芯體尺寸:16-位 速度:40MHz 連通性:3 線 SIO,I²C,LIN,UART/USART 外圍設(shè)備:DMA,LVD,POR,PWM,WDT 輸入/輸出數(shù):27 程序存儲器容量:16KB(16K x 8) 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:1K x 8 電壓 - 電源 (Vcc/Vdd):2.7 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 8x10b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 85°C 封裝/外殼:38-SSOP 包裝:托盤