- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄69026 > MC68HC05LJ5P (MOTOROLA INC) 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDIP16 PDF資料下載
參數(shù)資料
| 型號： | MC68HC05LJ5P |
| 廠商： | MOTOROLA INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDIP16 |
| 封裝： | PLASTIC, DIP-16 |
| 文件頁數(shù)： | 6/81頁 |
| 文件大小： | 905K |
| 代理商： | MC68HC05LJ5P |
第1頁第2頁第3頁第4頁第5頁當(dāng)前第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁
GENERAL RELEASE SPECIFICATION
November 10, 1998
MOTOROLA
GENERAL DESCRIPTION
MC68HC05LJ5
1-4
REV 1
1.5
FUNCTIONAL PIN DESCRIPTION
The following paragraphs give a description of the general function of each pin
assigned in Figure 1-2 and Figure 1-3.
1.5.1 VDD AND VSS
Power is supplied to the MCU through VDD and VSS. VDD is the positive supply,
and VSS is ground. The MCU operates from a single power supply.
Very fast signal transitions occur on the MCU pins. The short rise and fall times
place very high short-duration current demands on the power supply. To prevent
noise problems, special care should be taken to provide good power supply
bypassing at the MCU by using bypass capacitors with good high-frequency char-
acteristics that are positioned as close to the MCU as possible. Bypassing
requirements vary, depending on how heavily the MCU pins are loaded.
1.5.2 OSC1, OSC2/R
The OSC1 and OSC2/R pins are the connections for the on-chip oscillator. The
OSC1 and OSC2/R pins can accept the following sets of components:
1.
A crystal as shown in Figure 1-4(a)
2.
A ceramic resonator as shown in Figure 1-4(a)
3.
An external resistor as shown in Figure 1-4(b)
4.
An external clock signal as shown in Figure 1-4(c)
The frequency, fOSC, of the oscillator or external clock source is divided by two to
produce the internal operating frequency, fOP. The type of oscillator is selected by
a mask option. An internal 2M
resistor may be selected between OSC1 and
OSC2/R by a mask option (crystal/ceramic resonator mode only).
If the RC oscillator option is selected, OSC1 pin should be connected to a known
logic level, either one or zero.
Crystal Oscillator
The circuit in Figure 1-4(a) shows a typical oscillator circuit for an AT-cut, parallel
resonant crystal. The crystal manufacturer’s recommendations should be fol-
lowed, as the crystal parameters determine the external component values
required to provide maximum stability and reliable start-up. The load capacitance
values used in the oscillator circuit design should include all stray capacitances.
The crystal and components should be mounted as close as possible to the pins
for start-up stabilization and to minimize output distortion. An internal start-up
resistor of approximately 2 M
is provided between OSC1 and OSC2/R for the
crystal type oscillator as a mask option.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MC68HC05M4CFN | 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PQCC52 |
| MC68HC05M4MFN | 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PQCC52 |
| MC68HC05P1ADWR2 | 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDSO28 |
| MC68HSC05P1ADWR2 | 8-BIT, MROM, 4 MHz, MICROCONTROLLER, PDSO28 |
| MC68HCL05P1ADWR2 | 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDSO28 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC68HC05M6 | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:microcomputer unit with VFD drive capacity |
| MC68HC05M9 | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:microcomputer unit with VFD drive capability |
| MC68HC05P1 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS Microcontroller Unit |
| MC68HC05P15 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:SPECIFICATION |
| MC68HC05P18 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Advance Information |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。