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MC68HC05K0 Datasheet, PDF (120/154 Pages) Freescale Semiconductor, Inc – HCMOS Microcontroller Unit
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Technical Data
Freescale Semiconductor, Inc.
11.10 5.0-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)
2.4 MHz
0.500
4.0
dc
4.0
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)
1.2 MHz
0.250
2.0
dc
2.0
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
3-pin RC oscillator frequency combined stability(3)
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
Cycle time (1 ÷ fop)
RC oscillator stabilization time
Crystal oscillator startup time
Stop recovery startup time
RESET pulse width low
Timer resolution(5)
∆fosc
—
±25
%
—
±15
∆fosc
—
±15
%
—
±7
tcyc
500
—
ns
tRCON
—
1
ms
tOXOV
—
100 ms
tILCH
—
100 ms
tRL
1.5
—
tcyc
tRESL
4.0
—
tcyc
IRQ interrupt pulse width low (edge-triggered)
IRQ interrupt pulse period
tILIH
250
—
ns
tILIL
Note(6)
—
tcyc
PA3–PA0 interrupt pulse width high (edge-triggered)
PA3–PA0 interrupt pulse period
tIHIL
250
—
ns
tIHIH
Note(5)
—
tcyc
OSC1 pulse width
PEPROM programming time per byte(7)
tOH, tOL
200
tEPGM
10
—
ns
15
ms
1. VDD = 5.0 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.
7. Programming time per byte is tEPGM which may be accumulated during multiple programming passes.
Technical Data
MC68HC05K0 • MC68HC05K1 — Rev. 2.0
Electrical Specifications
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