參數(shù)資料
型號(hào)： MCV14AT-I/SL
元件分類： 微控制器/微處理器
英文描述： 8-BIT, FLASH, 20 MHz, RISC MICROCONTROLLER, PDSO14
封裝： 3.90 MM, PLASTIC, SOIC-14
文件頁(yè)數(shù)： 67/82頁(yè)
文件大?。?/td> 1053K
代理商： MCV14AT-I/SL
2009 Microchip Technology Inc.
Preliminary
DS41338C-page 7
MCV14A
1.0
GENERAL DESCRIPTION
The MCV14A device from Microchip Technology is
low-cost, high-performance, 8-bit, fully-static, Flash-
based CMOS microcontrollers. It employs a RISC
architecture with only 33 single-word/single-cycle
instructions. All instructions are single cycle (200
μs)
except for program branches, which take two cycles.
The MCV14A device delivers performance an order of
magnitude higher than their competitors in the same
price category. The 12-bit wide instructions are highly
symmetrical, resulting in a typical 2:1 code compres-
sion over other 8-bit microcontrollers in its class. The
easy-to-use and easy to remember instruction set
reduces development time significantly.
The MCV14A product is equipped with special features
that reduce system cost and power requirements. The
Power-on Reset (POR) and Device Reset Timer (DRT)
eliminate the need for external Reset circuitry. There
are four oscillator configurations to choose from,
including INTRC Internal Oscillator mode and the
power-saving LP (Low-Power) Oscillator mode. Power-
Saving Sleep mode, Watchdog Timer and code protec-
tion features improve system cost, power and reliability.
The MCV14A device is available in the cost-effective
Flash programmable version, which is suitable for
production in any volume. The customer can take full
advantage of Microchip’s price leadership in Flash
programmable microcontrollers, while benefiting from
the Flash programmable flexibility.
The MCV14A product is supported by a full-featured
macro assembler, a software simulator, an in-circuit
emulator, a ‘C’ compiler, a low-cost development pro-
grammer and a full featured programmer. All the tools
are supported on PC and compatible machines.
1.1
Applications
The MCV14A device fits in applications ranging from
personal care appliances and security systems to low-
power remote transmitters/receivers. The Flash tech-
nology
makes
customizing
application
programs
(transmitter codes, appliance settings, receiver fre-
quencies, etc.) extremely fast and convenient. The
small footprint packages, for through hole or surface
mounting, make these microcontrollers perfect for
applications with space limitations. Low cost, low
power, high performance, ease of use and I/O flexibility
make the MCV14A device very versatile even in areas
where no microcontroller use has been considered
before (e.g., timer functions, logic and PLDs in larger
systems and coprocessor applications).
TABLE 1-1:
FEATURES AND MEMORY OF MCV14A
MCV14A
Clock
Maximum Frequency of Operation (MHz)
20
Memory
Flash Program Memory
1024
SRAM Data Memory (bytes)
67
Flash Data Memory
64
Peripherals
Timer Module(s)
TMR0
Wake-up from Sleep on Pin Change
Yes
Features
I/O Pins
11
Input Pins
1
Internal Pull-ups
Yes
In-Circuit Serial Programming
Yes
Number of Instructions
33
Packages
14-pin PDIP and SOIC
The MCV14A device has Power-on Reset, selectable Watchdog Timer, selectable code-protect, high I/O current capability and
precision internal oscillator.
The MCV14A device uses serial programming with data pin RB0 and clock pin RB1.
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