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MC908AZ60ACFUER Datasheet, PDF (368/414 Pages) Freescale Semiconductor, Inc – To provide the most up-to-date information, the revision of our documents on the World Wide Web will be the most current. Your printed copy may be an earlier revision. To verify you have the latest information available, refer to:
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Electrical Specifications
28.1.5 Control Timing
Characteristic(1)
Symbol
Min
Max
Unit
Bus Operating Frequency (4.5–5.5 V — VDD Only)
fBUS
—
8.4
MHz
RST Pulse Width Low
tRL
1.5
—
tcyc
IRQ Interrupt Pulse Width Low (Edge-Triggered)
tILHI
1.5
—
tcyc
IRQ Interrupt Pulse Period
tILIL
Note 4
—
tcyc
16-Bit Timer(2)
Input Capture Pulse Width(3)
Input Capture Period
tTH, tTL
2
—
tcyc
tTLTL
Note(4)
—
MSCAN Wake-up Filter Pulse Width(5)
tWUP
2
5
μs
1. VDD = 5.0 Vdc ± 0.5v, VSS = 0 Vdc, TA = –40 °C to TA(MAX), unless otherwise noted.
2. The 2-bit timer prescaler is the limiting factor in determining timer resolution.
3. Refer to Table 25-2. Mode, Edge, and Level Selection and supporting note.
4. The minimum period tTLTL or tILIL should not be less than the number of cycles it takes to execute the capture interrupt service
routine plus TBD tcyc.
5. The minimum pulse width to wake up the MSCAN module is guaranteed by design but not tested.
28.1.6 ADC Characteristics
Characteristic(1)
Min
Max
Unit
Comments
Resolution
8
8
Bits
Absolute Accuracy
(VREFL = 0 V, VDDA/VDDAREF = VREFH = 5 V ± 0.5 V)
–1
+1
LSB
Includes Quantization
Conversion Range(2)
VREFL
VREFH
V
VREFL = VSSA
Power-Up Time
16
17
μs
Conversion Time Period
Input Leakage(3) (Ports B and D)
–1
1
μA
Conversion Time
16
17
ADC Clock
Cycles
Includes Sampling Time
Monotonicity
Inherent within Total Error
Zero Input Reading
00
01
Hex
VIN = VREFL
Full-Scale Reading
FE
FF
Hex
VIN = VREFH
Sample Time(2)
5
—
ADC Clock
Cycles
Input Capacitance
—
8
pF
Not Tested
ADC Internal Clock
500 k
1.048 M
Hz
Tested Only at 1 MHz
Analog Input Voltage
VREFL
VREFH
V
1. VDD = 5.0 Vdc ± 0.5 V, VSS = 0 Vdc, VDDA/VDDAREF = 5.0 Vdc ± 0.5 V, VSSA = 0 Vdc, VREFH = 5.0 Vdc ± 0.5 V
2. Source impedances greater than 10 kΩ adversely affect internal RC charging time during input sampling.
3. The external system error caused by input leakage current is approximately equal to the product of R source and input current.
MC68HC908AZ60A • MC68HC908AS60A • MC68HC908AS60E Data Sheet, Rev. 6
368
Freescale Semiconductor
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