參數(shù)資料
型號： PIC16C54C
廠商： Microchip Technology Inc.
英文描述： EPROM/ROM-Based 8-Bit CMOS Microcontroller(18引腳、12個I/O端口、512位EPROM/ROM的8位CMOS微控制器)
中文描述： 存儲器/基于ROM的8位CMOS微控制器（18引腳，12個的I / O，512位存儲器端口/光盤的8位的CMOS微控制器）
文件頁數(shù)： 31/158頁
文件大?。?/td> 1194K
代理商： PIC16C54C
2000 Microchip Technology Inc.
Preliminary
DS30453C-page 31
PIC16C5X
7.0
SPECIAL FEATURES OF THE
CPU
What sets a microcontroller apart from other proces-
sors are special circuits that deal with the needs of
real-time applications. The PIC16C5X family of micro-
controllers has a host of such features intended to max-
imize system reliability, minimize cost through
elimination of external components, provide power sav-
ing operating modes and offer code protection. These
features are:
Oscillator selection
RESET
Power-on Reset (POR)
Device Reset Timer (DRT)
Watchdog Timer (WDT)
SLEEP
Code Protection
ID locations
The PIC16C5X Family has a Watchdog Timer, which
can be shut off only through configuration bit WDTE. It
runs off of its own RC oscillator for added reliability.
There is an 18 ms delay provided by the Device Reset
Timer (DRT), intended to keep the chip in RESET until
the crystal oscillator is stable. With this timer on-chip,
most applications need no external RESET circuitry.
The SLEEP mode is designed to offer a very low cur-
rent power-down mode. The user can wake-up from
SLEEP through external RESET or through a Watch-
dog Timer time-out. Several oscillator options are also
made available to allow the part to fit the application.
The RC oscillator option saves system cost while the
LP crystal option saves power. A set of configuration
bits are used to select various options.
7.1
Configuration Bits
Configuration bits can be programmed to select various
device configurations. Two bits are for the selection of
the oscillator type and one bit is the Watchdog Timer
enable bit. Nine bits are code protection bits
(Figure 7-1 and Figure 7-2) for the PIC16C54,
PIC16CR54, PIC16C56, PIC16CR56, PIC16C58, and
PIC16CR58 devices.
QTP or ROM devices have the oscillator configuration
programmed at the factory and these parts are tested
accordingly (see "Product Identification System" dia-
grams in the back of this data sheet).
FIGURE 7-1:
CONFIGURATION WORD FOR PIC16CR54A/C54C/CR54C/C55A/C56A/CR56A/C57C/
CR57C/C58B/CR58B
CP
bit11
CP
10
CP
9
CP
8
CP
7
CP
6
CP
5
CP
4
CP
3
WDTE FOSC1 FOSC0
2
1
Register:
Address
(1)
:
CONFIG
FFFh
bit0
bit 11-3:
CP:
Code protection bits
1
= Code protection off
0
= Code protection on
bit 2:
WDTE:
Watchdog timer enable bit
1
= WDT enabled
0
= WDT disabled
bit 1-0:
F
OSC
1:F
OSC
0:
Oscillator selection bits
11
= RC oscillator
10
= HS oscillator
01
= XT oscillator
00
= LP oscillator
Note 1:
Refer to the PIC16C5X Programming Specification (Literature Number DS30190) to determine how to access the
configuration word.
相關(guān)PDF資料
PDF描述
PIC16C54 EPROM/ROM-Based 8-Bit CMOS Microcontroller Series(每個I/O口有20mA吸收,25mA驅(qū)動,12個I/O，2.5V的微控制器)
PIC16CR54B EPROM/ROM-Based 8-Bit CMOS Microcontroller Series(每個I/O口有20mA吸收,25mA驅(qū)動,12個I/O，2.5V的微控制器)
PIC16CR56A EPROM/ROM-Based 8-Bit CMOS Microcontroller Series(每個I/O有20mA吸收/25mA驅(qū)動,12個I/O，2.5V的微控制器)
PIC16CR57B EPROM/ROM-Based 8-Bit CMOS Microcontroller Series(每個I/O有20mA吸收/25mA驅(qū)動,20個I/O，2.5V的微控制器)
PIC16C54A EPROM/ROM-Based 8-Bit CMOS Microcontroller Series(每個I/O口有20mA吸收,25mA驅(qū)動,12個I/O，2.5V的微控制器)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PIC16C54C/JW 功能描述:8位微控制器 -MCU .75KB 25 RAM 12 I/O 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(fēng)格:SMD/SMT
PIC16C54C-04/P 功能描述:8位微控制器 -MCU .75KB 25 RAM 12 I/O 4MHz PDIP18 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(fēng)格:SMD/SMT
PIC16C54C-04/P 制造商:Microchip Technology Inc 功能描述:IC 8BIT CMOS MCU 16C54 DIP18
PIC16C54C04/SO 制造商:Microchip Technology 功能描述:8 PIC16C 4MHz 18SOIC 制造商:Microchip Technology 功能描述:8 PIC16C 4MHz 18SOIC Bulk
PIC16C54C-04/SO 功能描述:8位微控制器 -MCU .75KB 25 RAM 12 I/O 4MHz SOIC18 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(fēng)格:SMD/SMT
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