參數(shù)資料
型號: UPD78F9221MC-5A4-A
廠商: Renesas Electronics America
文件頁數(shù): 83/125頁
文件大?。?/td> 0K
描述: MCU 8BIT 2KB FLASH 20PIN
標準包裝: 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
外圍設備: LVD,POR,PWM,WDT
輸入/輸出數(shù): 15
程序存儲器容量: 2KB(2K x 8)
程序存儲器類型: 閃存
RAM 容量: 128 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-LSSOP(0.240",6.10mm 寬)
包裝: 托盤
CHAPTER 4 PORT FUNCTIONS
User’s Manual U16898EJ6V0UD
58
Figure 4-5. Block Diagram of P34
RD
P34/RESET
Option
byte
Reset
Internal
bus
RD:
Read signal
Caution
Because the P34 pin functions alternately as the RESET pin, if it is used as an input port pin, the
function to input an external reset signal to the RESET pin cannot be used. The function of the
port is selected by the option byte. For details, refer to CHAPTER 17 OPTION BYTE.
Also, since the option byte is referenced after the reset release, if low level is input to the RESET
pin before the referencing, then the reset state is not released. When it is used as an input port
pin, connect the pull-up resistor.
4.2.3
Port 4
Port 4 is a 6-bit I/O port with an output latch. Each bit of this port can be set to the input or output mode by using
port mode register 4 (PM4). When the P40 to P45 pins are used as an input port, an on-chip pull-up resistor can be
connected in 1-bit units by using pull-up resistor option register 4 (PU4).
Alternate functions include external interrupt request input, serial interface data I/O, and timer output.
Reset signal generation sets port 4 to the input mode.
Figures 4-6 to 4-9 show the block diagrams of port 4.
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相關(guān)代理商/技術(shù)參數(shù)
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UPD78F9222CS-CAC-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+ 標準包裝: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
UPD78F9222MC 制造商:Renesas Electronics Corporation 功能描述:UPD78F9222MC
UPD78F9222MC(A)-5A4-A 制造商:Renesas Electronics Corporation 功能描述:
UPD78F9222MC(T)-5A4 制造商:Renesas Electronics Corporation 功能描述:
UPD78F9222MC(T)-5A4-A 制造商:NEC Electronics Corporation 功能描述:8BIT MCU 4K FLASH 256B RAM 78F9222 制造商:NEC Electronics Corporation 功能描述:8BIT MCU, 4K FLASH, 256B RAM, 78F9222 制造商:NEC Electronics Corporation 功能描述:8BIT MCU, 4K FLASH, 256B RAM, 78F9222; Controller Family/Series:UPD78; Core Size:8bit; No. of I/O's:17; Supply Voltage Min:2V; Supply Voltage Max:5.5V; Digital IC Case Style:SSOP; No. of Pins:20; Program Memory Size:4KB; RAM Memory ;RoHS Compliant: Yes