參數(shù)資料
型號(hào)： MC68HC11D0CFBE3
廠商： FREESCALE SEMICONDUCTOR INC
元件分類： 微控制器/微處理器
英文描述： 8-BIT, MROM, 2 MHz, MICROCONTROLLER, PQFP44
封裝： 10 X 10 MM, QFP-44
文件頁數(shù)： 113/124頁
文件大小： 6875K
代理商： MC68HC11D0CFBE3
TIMING SYSTEM
TECHNICAL DATA
9-3
9.1 Timer Structure
Figure 9-1 shows the capture/compare system block diagram. The port A pin control
block includes logic for timer functions and for general-purpose I/O. For pins PA2,
PA1, and PA0, this block contains both the edge-detection logic and the control logic
that enables the selection of which edge triggers an input capture. The digital level on
PA[2:0] can be read at any time (read PORTA register), even if the pin is being used
for the input capture function. Pins PA[6:4] are used for either general-purpose output,
or as output compare pins. Pin PA3 can be used for general-purpose I/O, input capture
4, output compare 5, or output compare 1. When one of these pins is being used for
an output compare function, it cannot be written directly as if it were a general-purpose
output. Each of the output compare functions (OC5–OC2) is related to one of the port
A output pins. Output compare one (OC1) has extra control logic, allowing it optional
control of any combination of the PA[7:3] pins. The PA7 pin can be used as a general-
purpose I/O pin, as an input to the pulse accumulator, or as an OC1 output pin.
Table 9-1 Timer Summary
XTAL Frequencies
4.0 MHz
8.0 MHz
12.0 MHz
Other Rates
Control
1.0 MHz
2.0 MHz
3.0 MHz
(E)
Bits
1000 ns
500 ns
333 ns
(1/E)
PR[1:0]
Main Timer Count Rates
0 0
1 count —
overflow —
1.0 s
65.536 ms
500 ns
32.768 ms
333 ns
21.845 ms
(E/1)
(E/216)
0 1
1 count —
overflow —
4.0 s
262.14 ms
2.0 s
131.07 ms
1.333 s
87.381 ms
(E/4)
(E/218)
1 0
1 count —
overflow —
8.0 s
524.29 ms
4.0 s
262.14 ms
2.667 s
174.76 ms
(E/8)
(E/219)
1 1
1 count —
overflow —
16.0 s
1.049 s
8.0 s
524.29 ms
5.333 s
349.52 ms
(E/16)
(E/220)
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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MC68HC11D0CFBE3R 功能描述:8位微控制器 -MCU 8B MCU 192RAM 3 MHZ 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(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
MC68HC11D0CFN2 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:Microcontrollers
MC68HC11D0CFN3 制造商: 功能描述: 制造商:undefined 功能描述:
MC68HC11D0CFNE2 功能描述:8位微控制器 -MCU 8B MCU 192 BYTES RAM 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(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
MC68HC11D0CFNE2R 功能描述:8位微控制器 -MCU 8B MCU 192 BYTES RAM 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(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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