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MC68HC05K0 Datasheet, PDF (121/154 Pages) Freescale Semiconductor, Inc – HCMOS Microcontroller Unit
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Freescale Semiconductor, Inc.
Electrical Specifications
3.3-Volt Control Timing
11.11 3.3-Volt Control Timing
Characteristic(1)
Symbol
Min
Max Unit
Oscillator frequency
3-pin RC oscillator
2-pin RC oscillator
Crystal(2)/ceramic resonator
External clock
0.1(3)
1.2
fosc
0.1(2)
2.0 MHz
0.500
2.0
dc
2.0
Internal operating frequency (fosc ÷ 2)
3-pin RC oscillator
2-pin RC oscillator
Crystal(1)/ceramic resonator
External clock
0.05(2)
0.6
fop
0.05(2)
1.0 MHz
0.250
1.0
dc
1.0
2-pin RC oscillator frequency combined stability(4)
fosc = 2.0 MHz; VDD = 3.3 Vdc ±0.3 V; TA = –40°C to +85°C
fosc = 2.0 MHz; VDD = 3.3 Vdc ±0.3 V; TA = 0°C to +40°C
3-pin RC oscillator frequency combined stability(3)
fosc = 1.0 MHz; VDD = 3.3 Vdc ± 0.3 V; TA = –40°C to +85°C
fosc = 1.0 MHz; VDD = 3.3 Vdc ± 0.3 V; TA = 0°C to +40°C
Cycle time (1 ÷ fop)
RC oscillator stabilization time
Crystal oscillator startup time
Stop recovery startup time
RESET pulse width low
Timer resolution(5)
∆fosc
∆fosc
tcyc
tRCON
tOXOV
tILCH
tRL
tRESL
—
—
—
—
1000
—
—
—
1.5
4.0
±35
%
±20
±15
%
±10
—
ns
1
ms
100
ms
100
ms
—
tcyc
—
tcyc
IRQ interrupt pulse width low (edge-triggered)
tILIH
250
—
ns
IRQ interrupt pulse period
tILIL
Note(6)
—
tcyc
PA3–PA0 interrupt pulse width high (edge-triggered)
tIHIL
250
—
ns
PA3–PA0 interrupt pulse period
tIHIH
Note(5)
—
tcyc
OSC1 pulse width
tOH, tOL
200
—
ns
1. VDD = 3.3 Vdc ±10%
2. Use only AT-cut crystals.
3. Minimum oscillator frequency with RC oscillator option is limited only by size of external R and C and leakage of external C.
4. Includes processing tolerances and variations in temperature and supply voltage; excludes tolerances of external R and C.
5. The 2-bit timer prescaler is the limiting factor in determining timer resolution.
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.
MC68HC05K0 • MC68HC05K1 — Rev. 2.0
Electrical Specifications
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