參數(shù)資料
型號(hào): MC68HC705SR3CPE
廠商: Freescale Semiconductor
文件頁數(shù): 21/96頁
文件大?。?/td> 0K
描述: IC MCU 3.75K 2.1MHZ OTP 40-DIP
標(biāo)準(zhǔn)包裝: 9
系列: HC05
核心處理器: HC05
芯體尺寸: 8-位
速度: 4MHz
外圍設(shè)備: LED,POR
輸入/輸出數(shù): 32
程序存儲(chǔ)器容量: 3.75KB(3.75K x 8)
程序存儲(chǔ)器類型: OTP
RAM 容量: 192 x 8
電壓 - 電源 (Vcc/Vdd): 3 V ~ 5.5 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 4x8b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 40-DIP(0.600",15.24mm)
包裝: 管件
Freescale
3-2
MC68HC05SR3
INPUT/OUTPUT PORTS
3
3.1.2
Port Data Direction Registers
Each port pin may be programmed as an input by clearing the corresponding bit in the DDR, or
programmed as an output by setting the corresponding bit in the DDR. The DDR for Port A, B, C,
and D are located at $04, $05, $06 and, $07 respectively. The DDRs are cleared by reset.
Note:
A “glitch” may occur on an I/O pin when selecting from an input to an output unless the
data register is first preconditioned to the desired state before changing the
corresponding DDR bit from a “0” to a “1”.
3.2
Port A — Keyboard Interrupts (KBI)
Port A is configured for use as keyboard interrupts when the KBIE bit is set in the Miscellaneous
Control Register (MCR). Individual keyboard interrupt port pins are also maskable by setting
corresponding bits in the Keyboard Interrupt Mask Register.
See Section 5.2.2.4 for details on the keyboard interrupts.
3.3
PD0:PD5 — ADC Inputs
When the ADON bit is set in the ADC Status and Control Register, PD0 to PD3 are configured as
ADC inputs AN0 to AN3 respectively. PD4 and PD5 are configured as VRL and VRH respectively.
See Section 7 for details on the Analog to Digital Converter.
Figure 3-1 Port I/O Circuitry
INPUT
REGISTER
BIT
INPUT I/O
OUTPUT
I/O PIN
DATA DIRECTION
REGISTER BIT
LATCHED OUTPUT
DATA BIT
INTERNAL
MC68HC05
CONNECTIONS
TPG
26
05SR3.Book Page 2 Thursday, August 4, 2005 1:08 PM
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC68HC705SR3CPE 制造商:Freescale Semiconductor 功能描述:8-Bit Microcontroller IC
MC68HC705SR3PE 功能描述:IC MCU 3.75K 2.1MHZ OTP 40-DIP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器, 系列:HC05 標(biāo)準(zhǔn)包裝:1 系列:AVR® ATmega 核心處理器:AVR 芯體尺寸:8-位 速度:16MHz 連通性:I²C,SPI,UART/USART 外圍設(shè)備:欠壓檢測(cè)/復(fù)位,POR,PWM,WDT 輸入/輸出數(shù):32 程序存儲(chǔ)器容量:32KB(16K x 16) 程序存儲(chǔ)器類型:閃存 EEPROM 大小:1K x 8 RAM 容量:2K 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 ~ 125°C 封裝/外殼:44-TQFP 包裝:剪切帶 (CT) 其它名稱:ATMEGA324P-B15AZCT
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