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Technical Data
MC68HC05K0 MC68HC05K1 — Rev. 2.0
120
Electrical Specifications
MOTOROLA
Technical Data
11.10 5.0-Volt Control Timing
Characteristic(1)
1. VDD = 5.0 Vdc ±10%
Symbol
Min
Max
Unit
Oscillator frequency
3-pin RC oscillator
2-pin RC oscillator
Crystal(2)/ceramic resonator
External clock
2. Use only AT-cut crystals.
fosc
0.1(3)
0.1(2)
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(1)/ceramic resonator
External clock
fop
0.05(2)
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. Includes processing tolerances and variations in temperature and supply voltage; excludes tolerances of external R and C.
f
osc
—
±25
±15
%
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
f
osc
—
±15
±7
%
Cycle time (1
÷ f
op)tcyc
500
—
ns
RC oscillator stabilization time
tRCON
—1
ms
Crystal oscillator startup time
tOXOV
—
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
Note(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
Note(5)
—
tcyc
OSC1 pulse width
tOH, tOL
200
—
ns
PEPROM programming time per byte(7)
7. Programming time per byte is tEPGM which may be accumulated during multiple programming passes.
tEPGM
10
15
ms