參數(shù)資料
型號： MCHC11F1CFNE5
廠商： Freescale Semiconductor
文件頁數(shù)： 105/158頁
文件大?。?/td> 0K
描述： MCU 8BIT 1KRAM 512EE 68-PLCC
標(biāo)準(zhǔn)包裝： 18
系列： HC11
核心處理器： HC11
芯體尺寸： 8-位
速度： 5MHz
連通性： SCI，SPI
外圍設(shè)備： POR，WDT
輸入/輸出數(shù)： 30
程序存儲器類型： ROMless
EEPROM 大?。?/td> 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
OPERATING MODES AND ON-CHIP MEMORY
MC68HC11F1
4-12
TECHNICAL DATA
ADPU — A/D Power-Up
0 = A/D system disabled
1 = A/D system power enabled
CSEL — Clock Select
Selects alternate clock source for on-chip EEPROM and A/D charge pumps. On-chip
RC clock should be used when E clock falls below 1 MHz. Refer to SECTION 10 AN-
0 = A/D and EEPROM use system E clock
1 = A/D and EEPROM use internal RC clock
IRQE — Congure IRQ for Falling Edge-Sensitive Operation
0 = Low level-sensitive operation.
1 = Falling edge-sensitive only operation.
DLY — Enable Oscillator Start-up Delay
0 = The oscillator start-up delay coming out of STOP is bypassed and the MCU re-
sumes processing within about four bus cycles.
1 = A delay of approximately 4000 E-clock cycles is imposed as the MCU is started
up from the STOP power-saving mode.
CME — Clock Monitor Enable
In order to use both STOP and clock monitor, the CME bit must be written to zero be-
fore executing STOP, then written to one after recovering from STOP. Refer to SEC-
0 = Clock monitor disabled
1 = Clock monitor enabled
FCME — Force Clock Monitor Enable
When FCME equals one, slow or stopped clocks will cause a clock failure reset. To
use STOP mode, FCME must always equal zero. Refer to SECTION 5 RESETS AND
0 = Clock monitor follows state of CME bit
1 = Clock monitor enabled and cannot be disabled until next reset
CR[1:0] — COP Timer Rate Select Bits
These control bits determine a scaling factor for the watchdog timer. Refer to SEC-
4.3.2.4 OPT2 Register
The system configuration options 2 register (OPT2) controls three additional system
options.
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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