參數(shù)資料
型號(hào)： PIC12F519
廠(chǎng)商： Microchip Technology Inc.
英文描述： 8-Pin, 8-Bit Flash Microcontroller
中文描述： 8引腳，8位閃存微控制器
文件頁(yè)數(shù)： 27/88頁(yè)
文件大?。?/td> 802K
代理商： PIC12F519
2007 Microchip Technology Inc.
Preliminary
DS41319A-page 25
PIC12F519
6.0
I/O PORT
As with any other register, the I/O register(s) can be
written and read under program control. However, read
instructions (e.g.,
MOVF PORTB,W
) always read the I/O
pins independent of the pin’s Input/Output modes. On
Reset, all I/O ports are defined as input (inputs are at
high-impedance) since the I/O control registers are all
set.
6.1
PORTB
PORTB is an 8-bit I/O register. Only the low-order 6 bits
are used (RB<5:0>). Bits 7 and 6 are unimplemented
and read as ‘
0
’s. Please note that RB3 is an input-only
pin. The Configuration Word can set several I/O’s to
alternate functions. When acting as alternate functions,
the pins will read as ‘
0
’ during a port read. Pins RB0,
RB1, and RB3 can be configured with weak pull-ups
and also for wake-up on change. The wake-up on
change and weak pull-up functions are not pin select-
able. If RB3/MCLR is configured as MCLR, weak pull-
up is always on and wake-up on change for this pin is
not enabled.
6.2
TRIS Registers
The Output Driver Control registers are loaded with
the contents of the W Register by executing the
TRIS
f
instruction. A ‘
1
’ from a TRIS Register bit puts the
corresponding output driver in a high-impedance
(Input) mode. A ‘
0
’ puts the contents of the output data
latch on the selected pins, enabling the output buffer.
The TRIS registers are “write-only” and are set (output
drivers disabled) upon Reset.
TABLE 6-1:
WEAK PULL-UP ENABLED PINS
RB0 Weak Pull-up
Note:
If the T0CS bit is set to ‘
1
’, it will override
the TRIS function on the T0CKI pin.
Device
RB1 Weak Pull-up RB3 Weak Pull-up
(1)
RB4 Weak Pull-up
PIC12F519
Yes
Yes
Yes
No
Note1:
When MCLREN =
1
, the weak pull-up on RB3/MCLR is always enabled.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PIC12F519_08 制造商:MICROCHIP 制造商全稱(chēng):Microchip Technology 功能描述:8-Pin, 8-Bit Flash Microcontrollers
PIC12F519-E/MC 功能描述:8位微控制器 -MCU 15KB Flash Prgrm 64B 8MHz Intrnl Oscilatr RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線(xiàn)寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)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
PIC12F519-E/MS 功能描述:8位微控制器 -MCU 15KB Flash Prgrm 64B 8MHz Intrnl Oscilatr RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線(xiàn)寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)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
PIC12F519-E/P 功能描述:8位微控制器 -MCU 15KB Flash Prgrm 64B 8MHz Intrnl Oscilatr RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線(xiàn)寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)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
PIC12F519-E/SN 功能描述:8位微控制器 -MCU 15KB Flash Prgrm 64B 8MHz Intrnl Oscilatr RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線(xiàn)寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)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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