參數(shù)資料
型號： MC68HCP11A1CFN2
廠商： FREESCALE SEMICONDUCTOR INC
元件分類： 微控制器/微處理器
英文描述： 8-BIT, MROM, 2 MHz, MICROCONTROLLER, PQCC52
封裝： PLASTIC, LCC-52
文件頁數(shù)： 43/158頁
文件大?。?/td> 3803K
代理商： MC68HCP11A1CFN2
ELECTRICAL CHARACTERISTICS
MOTOROLA
TECHNICAL DATA
A-17
A
NOTES:
1. Source impedances greater than 10 k
affect accuracy adversely because of input leakage.
2. Performance verified down to 2.5 V
V
R, but accuracy is tested and guaranteed at VR = 5 V ± 10%.
Table A-6 Analog-To-Digital Converter Characteristics
VDD = 5.0 Vdc ± 10%, VSS = 0 Vdc, TA = TL to TH, 750 kHz ≤ E ≤ 3.0 MHz, unless otherwise noted
Characteristic
Parameter
Min
Absolute
2.0 MHz
3.0 MHz
Unit
Max
Resolution
Number of Bits Resolved by A/D Converter
—
8
—
Bits
Non-Linearity
Maximum Deviation from the Ideal A/D Transfer
Characteristics
——
± 1/2
± 1
LSB
Zero Error
Difference Between the Output of an Ideal and an
Actual for Zero Input Voltage
——
± 1/2
± 1
LSB
Full Scale Error Difference Between the Output of an Ideal and an
Actual A/D for Full-Scale Input Voltage
——
± 1/2
± 1
LSB
Total Unadjust-
ed Error
Maximum Sum of Non-Linearity, Zero Error, and
Full-Scale Error
——
± 1/2
± 1 1/2
LSB
Quantization
Error
Uncertainty Because of Converter Resolution
—
± 1/2
LSB
Absolute Accu-
racy
Difference Between the Actual Input Voltage and
the Full-Scale Weighted Equivalent of the Binary
Output Code, All Error Sources Included
——
± 1
± 2
LSB
Conversion
Range
Analog Input Voltage Range
VRL
—VRH
VRH
V
VRH
Maximum Analog Reference Voltage (Note 2)
VRL
—VDD + 0.1
VDD +
0.1
V
VRL
Minimum Analog Reference Voltage (Note 2)
VSS –
0.1
—VRH
VRH
V
R
Minimum Difference between VRH and VRL
(Note 2)
3—
—
V
Conversion
Time
Total Time to Perform a Single Analog-to-Digital
Conversion:
a. E Clock
b. Internal RC Oscillator
—
32
—
tcyc + 32
—
tcyc + 32
tcyc
s
Monotonicity
Conversion Result Never Decreases with an In-
crease in Input Voltage and has no Missing Codes
—
Guaranteed
—
Zero Input
Reading
Conversion Result when Vin = VRL
00
—
Hex
Full Scale
Reading
Conversion Result when Vin = VRH
—
FF
Hex
Sample Acqui-
sition Time
Analog Input Acquisition Sampling Time:
a. E Clock
b. Internal RC Oscillator
—
12
—
12
—
12
tcyc
s
Sample/Hold
Capacitance
Input Capacitance during Sample PE0-PE7
—
20 (Typ)
—
pF
Input Leakage
Input Leakage on A/D PinsPE0-PE7
VRL, VRH
—
400
1.0
400
1.0
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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