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| MC908JL8CDWE Datasheet, PDF (193/212 Pages) Freescale Semiconductor, Inc – Microcontrollers | |||
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Timer Interface Module Characteristics
17.12 Timer Interface Module Characteristics
Table 17-10. Timer Interface Module Characteristics (5V and 3V)
Characteristic
Input capture pulse width
Input clock pulse width (T2CLK pulse width)
Symbol
tTIH, tTIL
tLMIN, tHMIN
Min
1/fOP
(1/fOP) + 5ns
Max
â
â
Unit
17.13 ADC Characteristics
Table 17-11. ADC Characteristics (5V and 3V)
Characteristic
Supply voltage
Input voltages
Resolution
Absolute accuracy
ADC internal clock
Conversion range
Power-up time
Conversion time
Sample time(1)
Zero input reading(2)
Full-scale reading(3)
Input capacitance
Input leakage(3)
Port B/port D
Symbol
VDDAD
VADIN
BAD
AAD
fADIC
RAD
tADPU
tADC
tADS
ZADI
FADI
CADI
â
Min
2.7
(VDD min)
VSS
8
± 0.5
0.5
VSS
16
14
5
00
FE
â
â
Max
5.5
(VDD max)
VDD
8
± 1.5
1.048
VDD
15
â
01
FF
(20) 8
±1
Unit
Comments
V
V
Bits
LSB
MHz
V
tAIC cycles
tAIC cycles
tAIC cycles
Hex
Hex
pF
Includes quantization
tAIC = 1/fADIC, tested only
at 1 MHz
VIN = VSS
VIN = VDD
Not tested
µA
1. Source impedances greater than 10 k⦠adversely affect internal RC charging time during input sampling.
2. Zero-input/full-scale reading requires sufficient decoupling measures for accurate conversions.
3. The external system error caused by input leakage current is approximately equal to the product of R source and input
current.
MC68HC908JL8/JK8 ⢠MC68HC08JL8/JK8 ⢠MC68HC908KL8 Data Sheet, Rev. 3.1
Freescale Semiconductor
193
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