參數(shù)資料
型號: MCHC11F1CFNE4
廠商: Freescale Semiconductor
文件頁數(shù): 70/158頁
文件大?。?/td> 0K
描述: IC MCU 8BIT 1K RAM 68-PLCC
標準包裝: 18
系列: HC11
核心處理器: HC11
芯體尺寸: 8-位
速度: 4MHz
連通性: SCI,SPI
外圍設備: POR,WDT
輸入/輸出數(shù): 30
程序存儲器類型: ROMless
EEPROM 大小: 512 x 8
RAM 容量: 1K x 8
電壓 - 電源 (Vcc/Vdd): 4.75 V ~ 5.25 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 8x8b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 68-LCC(J 形引線)
包裝: 管件
PIN DESCRIPTIONS
TECHNICAL DATA
2-5
2.5 Four Times E-Clock Frequency Output (4XOUT)
Although the circuit shown in Figure 2-6 will work for any M68HC11 MCU, the
MC68HC11F1 has an additional clock output that is four times the E-clock frequency.
This output (4XOUT) can be used to directly drive the EXTAL input of another
M68HC11 MCU. Refer to Figure 2-7. The 4XOUT output is enabled after reset and
can be disabled by clearing the CLK4X bit in the OPT2 register.
Figure 2-7 4XOUT Signal Driving a Second MCU
2.6 Interrupt Request (IRQ)
The IRQ input provides a means of generating asynchronous interrupt requests for the
CPU. Either falling-edge triggering or low-level triggering is selected by the IRQE bit
in the OPTION register. IRQ is always configured for level-sensitive triggering at reset.
Connect an external pull-up resistor, typically 4.7 k
, to VDD when IRQ is used in a
level-sensitive wired-OR configuration. Refer to SECTION 5 RESETS AND INTER-
2.7 Non-Maskable Interrupt (XIRQ)
The XIRQ input provides a means of requesting a non-maskable interrupt after reset
initialization. During reset, the X bit in the condition code register (CCR) is set and any
interrupt is masked until MCU software enables it. Because the XIRQ input is level
sensitive, it can be connected to a multiple-source wired-OR network with an external
pull-up resistor to VDD. XIRQ is often used as a power loss detect interrupt.
Whenever XIRQ or IRQ are used with multiple interrupt sources (IRQ must be config-
ured for level-sensitive operation if there is more than one source of IRQ interrupt),
each source must drive the interrupt input with an open-drain type of driver to avoid
contention between outputs. There should be a single pull-up resistor near the MCU
interrupt input pin (typically 4.7 k
). There must also be an interlock mechanism at
each interrupt source so that the source holds the interrupt line low until the MCU rec-
ognizes and acknowledges the interrupt request. If one or more interrupt sources are
still pending after the MCU services a request, the interrupt line will still be held low
and the MCU will be interrupted again as soon as the interrupt mask bit in the condition
code register (CCR) is cleared (normally upon return from an interrupt). Refer to SEC-
EXTAL
4XOUT
MC68HC11F1
NC OR
10 k – 100 k
LOAD
XTAL
EXTAL
SECOND
XTAL
MCU
OSCILLATOR
CIRCUIT OR
CMOS-COMPATIBLE
CLOCK
F
re
e
sc
a
le
S
e
m
ic
o
n
d
u
c
to
r,
I
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
c
..
.
相關(guān)PDF資料
PDF描述
VJ2225A153KBAAT4X CAP CER 0.015UF 50V 10% NP0 2225
VE-B6V-IY-F3 CONVERTER MOD DC/DC 5.8V 50W
MCHC11F1CFNE3 IC MCU 8BIT 1K RAM 68-PLCC
VJ2225A153KBBAT4X CAP CER 0.015UF 100V NP0 2225
VE-B6V-IY-F1 CONVERTER MOD DC/DC 5.8V 50W
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MCHC11F1CFNE4R 功能描述:8位微控制器 -MCU 8B MCU 1KRAM 512EE 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 安裝風格:SMD/SMT
MCHC11F1CFNE5 功能描述:8位微控制器 -MCU 8B MCU 1KRAM 512EE 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 安裝風格:SMD/SMT
MCHC11F1MFNE4 制造商:Freescale Semiconductor 功能描述:8-BIT MCU,1KRAM,512EE,A/ - Rail/Tube
MCHC11F1VFNE3 功能描述:8位微控制器 -MCU 8B MCU 1KRAM 512EE 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 安裝風格:SMD/SMT
MCHC11KS1CFNE4 功能描述:8位微控制器 -MCU 68HC11KS4 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 安裝風格:SMD/SMT