参数资料
型号: MC68HC705K1CDW
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, OTPROM, 2 MHz, MICROCONTROLLER, PDSO16
封装: SOIC-16
文件页数: 31/140页
文件大小: 3196K
代理商: MC68HC705K1CDW
Technical Data
MC68HC705K1 — Rev. 2.0
Electrical Specifications
Electrical Specications
12.10 5.0-Volt Control Timing
Characteristic(1)
1. VDD = 5.0 Vdc ±10%; VSS –0 Vdc; TA = TL to TH
Symbol
Min
Max
Unit
Oscillator frequency
3-pin RC oscillator
2-pin RC oscillator
Crystal/ceramic resonator(2)
External clock
2. Use only AT-cut crystals.
fOSC
(3)
0.500
dc
3. Minimum oscillator frequency with RC oscillator option is limited only by size of external R and C and leakage of external C.
1.2
2.4
4.0
MHz
Internal operating frequency (fOSC ÷ 2)
3-pin RC oscillator
2-pin RC oscillator
Crystal/ceramic resonator
External clock
fOP
(3)
0.250
dc
0.6
1.2
2.0
MHz
2-pin RC oscillator frequency combined stability(4)
fOSC = 2.0 MHz; VDD = 5.0 Vdc ±10%; TA = –40°C to +85°C
fOSC = 2.0 MHz; VDD = 5.0 Vdc ±10%; TA = 0°C to +40°C
4. Including processing tolerances and variations in temperature and supply voltage. Excluding tolerances of external R
and C.
f
OSC
±25
±20
%
3-pin RC oscillator frequency combined stability(4)
fOSC = 1.0 MHz; VDD = 5.0 Vdc ±10%; TA = –40°C to +85°C
fOSC = 1.0 MHz; VDD = 5.0 Vdc ±10%; TA = 0°C to +40°C
f
OSC
±15
±10
%
Cycle time (1
÷ f
OP)tCYC
500
ns
RC oscillator stabilization time
tRCON
—1
ms
Crystal oscillator startup time
tOXON
100
ms
Stop recovery startup time
tILCH
100
ms
RESET pulse width low
tRL
1.5
tCYC
Timer resolution(5)
5. The 2-bit timer prescaler is the limiting factor in determining timer resolution.
tRESL
4.0
tCYC
IRQ interrupt pulse width low (edge-triggered)
tILIH
250
ns
IRQ interrupt pulse period
tILIL
(6)
6. The minimum period, tILIL or tIHIH, should not be less than the number of cycles it takes to execute the interrupt service
routine plus 19 tCYC.
tCYC
PA3–PA0 interrupt pulse width high (edge-triggered)
tIHIL
250
ns
PA3–PA0 interrupt pulse period
tIHIH
(6)
tCYC
OSC1 pulse width
tOH, tOL
200
ns
Programming time per byte(7)
7. tEPGM is programming time per byte and may be accumulated during multiple programming passes.
tEPGM
10
15
ms
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Freescale Semiconductor, Inc.
For More Information On This Product,
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