參數(shù)資料
型號: MC68HC705F4P
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, OTPROM, 1.789 MHz, MICROCONTROLLER, PDIP28
封裝: PLASTIC, DIP-28
文件頁數(shù): 26/130頁
文件大?。?/td> 10504K
代理商: MC68HC705F4P
MC68HC05F4
iii
GLOSSARY
Pull-down, pull-up These terms refer to resistors, sometimes internal to the device, which are
permanently connected to either ground or VDD.
PWM
Pulse width modulation. This term is used to describe a technique where the
width of the high and low periods of a waveform is varied, usually to enable
a representation of an analog value.
QFP
Quad at pack package.
RAM
Random access memory. Fast read and write, but contents are lost when
the power is removed.
RFI
Radio frequency interference.
RTI
Real-time interrupt.
ROM
Read-only memory. This type of memory is programmed during device
manufacture and cannot subsequently be altered.
RS-232C
A standard serial communications protocol.
SAR
Successive approximation register.
SCI
Serial communications interface.
Set
‘1’ — the logic one state; the opposite of ‘clear’.
Silicon glen
An area in the central belt of Scotland, so called because of the
concentration of semiconductor manufacturers and users found there.
Single chip mode
In this mode the device functions as a self contained unit, requiring only I/O
devices to complete a system.
SPI
Serial peripheral interface.
Test mode
This mode is intended for factory testing.
TTL
Transistor-transistor logic.
UART
Universal asynchronous receiver transmitter.
VCO
Voltage controlled oscillator.
Watchdog
see ‘COP’.
Wired-OR
A means of connecting outputs together such that the resulting composite
output state is the logical OR of the state of the individual outputs.
Word
Two bytes; 16 bits.
XIRQ
Non-maskable interrupt request. The overline indicates that this has an
active-low signal format.
TPG
119
05F4Book Page iii Tuesday, August 5, 1997 1:10 pm
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For More Information On This Product,
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相關(guān)PDF資料
PDF描述
MC68HC705F4FB 8-BIT, OTPROM, 1.789 MHz, MICROCONTROLLER, PQFP44
MC68HC05F4FB 8-BIT, MROM, 1.789 MHz, MICROCONTROLLER, PQFP44
MC68HC05F4CDW 8-BIT, MROM, 1.789 MHz, MICROCONTROLLER, PDSO28
MC68HC705G4 8-BIT, OTPROM, 1 MHz, MICROCONTROLLER, PQFP80
MC68HC05G3 8-BIT, OTPROM, 2 MHz, MICROCONTROLLER, PQFP80
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參數(shù)描述
MC68HC705G1B 制造商:Rochester Electronics LLC 功能描述:- Bulk
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