1. All timing is shown with respect to 20% VDD
參數(shù)資料
型號(hào): MC68HC11F1CFN4
廠商: Freescale Semiconductor
文件頁數(shù): 45/158頁
文件大?。?/td> 0K
描述: IC MCU 512 EEPROM 4MHZ 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: 4MHz
連通性: SCI,SPI
外圍設(shè)備: POR,WDT
輸入/輸出數(shù): 30
程序存儲(chǔ)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
ELECTRICAL CHARACTERISTICS
TECHNICAL DATA
A-5
NOTES:
1. All timing is shown with respect to 20% VDD and 70% VDD, unless otherwise noted.
2. RESET is recognized during the first clock cycle it is held low. Internal circuitry then drives the pin low for four
clock cycles, releases the pin, and samples the pin level two cycles later to determine the source of the interrupt.
Refer to SECTION 5 RESETS AND INTERRUPTS for further detail.
3. PWRSTL = 8 tcyc minimum on mask set C94R only.
Figure A-2 Timer Inputs
Table A-4 Control Timing
VDD = 5.0 Vdc ± 5%, VSS = 0 Vdc, TA = TL to TH
Characteristic
Symbol
2.0 MHz
3.0 MHz
4.0 MHz
Unit
Min
Max
Min
Max
Min
Max
Frequency of Operation
fo
dc
2.0
dc
3.0
dc
4.0
MHz
E-Clock Period
tcyc
500
333
250
ns
Crystal Frequency
fXTAL
8.0
12.0
16.0
MHz
External Oscillator Frequency
4 fo
dc
8.0
dc
12.0
dc
16.0
MHz
Processor Control Setup Time
tPCSU = 1/4 tcyc + 50 ns
tPCSU
175
133
113
ns
Reset Input Pulse Width (Notes 2, 3)
(To Guarantee External Reset Vector)
(Minimum Input Time;
Can Be Preempted by Internal Reset)
PWRSTL
16
1
16
1
16
1
tcyc
Mode Programming Setup Time
tMPS
2—2—2—
tcyc
Mode Programming Hold Time
tMPH
10—10—10—
ns
Interrupt Pulse Width, IRQ Edge-Sensitive Mode
PWIRQ = tcyc + 20 ns
PWIRQ
520
353
270
ns
Wait Recovery Startup Time
tWRS
—4—4—4
tcyc
Timer Pulse Width, Input Capture Pulse Accumulator
Input
PWTIM = tcyc + 20 ns
PWTIM
520
353
270
ns
NOTES:
1. Rising edge sensitive input.
2. Falling edge sensitive input.
3. Maximum pulse accumulator clocking rate is E-clock frequency divided by 2.
PA7
2,3
PA7
1,3
PA[3:0]
2
PA[3:0]
1
PWTIM
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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