參數(shù)資料
型號: MC68HC11D0CFNE3
廠商: Freescale Semiconductor
文件頁數(shù): 32/124頁
文件大小: 0K
描述: IC MCU 8BIT 3MHZ 44-PLCC
標準包裝: 26
系列: HC11
核心處理器: HC11
芯體尺寸: 8-位
速度: 3MHz
連通性: SCI,SPI
外圍設(shè)備: POR,WDT
輸入/輸出數(shù): 26
程序存儲器類型: ROMless
RAM 容量: 192 x 8
電壓 - 電源 (Vcc/Vdd): 4.5 V ~ 5.5 V
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 44-LCC(J 形引線)
包裝: 管件
PIN DESCRIPTIONS
TECHNICAL DATA
2-3
constant can cause the device to misinterpret the type of reset that occurred. Refer to
SECTION 5 RESETS AND INTERRUPTS for further information.
Figure 2-3 illustrates a reset circuit that uses an external switch. Use a low voltage
interrupt circuit, however, to prevent corruption of RAM.
Figure 2-3 External Reset Circuit
2.3 Crystal Driver and External Clock Input (XTAL, EXTAL)
These two pins provide the interface for either a crystal or a CMOS compatible clock
to control the internal clock generator circuitry. The frequency applied to these pins is
four times higher than the desired E-clock rate.
The XTAL pin is normally left unterminated when an external CMOS compatible clock
input is connected to the EXTAL pin. However, a 10 k
to 100 k load resistor con-
nected from XTAL to ground can be used to reduce RFI noise emission. The XTAL
output is normally intended to drive only a crystal. The XTAL output can be buffered
with a high impedance buffer, or it can be used to drive the EXTAL input of another
M68HC11.
In all cases, use caution around the oscillator pins. Load capacitances shown in the
oscillator circuits include all stray layout capacitances. Refer to Figure 2-4, Figure 2-
Figure 2-4 Common Crystal Connections
EXT RESET CIRCUIT
4.7 k
TO RESET
VDD
MC34(0/1)64
RESET
GND
IN
OF M68HC11
2
1
3
VDD
10 M
* THIS VALUE INCLUDES ALL STRAY CAPACITANCES.
MCU
25 pF
*
25 pF
*
EXTAL
XTAL
4 x E
CRYSTAL
COMMON XTAL CONN
F
re
e
sc
a
le
S
e
m
ic
o
n
d
u
c
to
r,
I
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
c
..
.
相關(guān)PDF資料
PDF描述
VE-B1N-CU-F4 CONVERTER MOD DC/DC 18.5V 200W
VE-B1N-CU-F3 CONVERTER MOD DC/DC 18.5V 200W
MC68908GR16VFJE IC MCU 8BIT 16K FLASH 32-LQFP
C8051F006-GQ IC 8051 MCU 32K FLASH 48TQFP
LPC2105FBD48/01,15 IC ARM7 MCU FLASH 128K 48-LQFP
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC68HC11D0CFNE3R 功能描述:8位微控制器 -MCU 8B MCU 192 BYTES RAM RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT
MC68HC11D0CP3 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller
MC68HC11D0FB 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller
MC68HC11D0FN 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller
MC68HC11D0FNR2 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller