參數(shù)資料
型號(hào): MC68HC05P9AVP
廠商: MOTOROLA INC
元件分類(lèi): 微控制器/微處理器
英文描述: 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDIP28
封裝: PLASTIC, DIP-28
文件頁(yè)數(shù): 76/90頁(yè)
文件大?。?/td> 285K
代理商: MC68HC05P9AVP
GENERAL RELEASE SPECIFICATION
MOTOROLA
ELECTRICAL SPECIFICATIONS
MC68HC05P9A
13-4
Rev. 2.0
13.4
A/D Converter Characteristics
Table 13-3. A/D Converter Characteristics
Characteristic
Min
Max
Unit
Resolution
8
Bit
Absolute Accuracy (4.0 V > VRH > VDD)
(See Note 1)
±1–1/2
LSB
Conversion Range
VRH
VSS
VRH
VDD
V
Conversion Time (Includes Sampling Time)
External Clock (XTAL)
Internal RC Oscillator (ADRC = 1)
32
32
tAD
s
Power-Up Time
100
s
Monotonicity
Inherent (Within Total Error)
Zero Input Reading (Vin = 0 V)
00
01
Hex
Full-Scale Reading (Vin = VRH)
FF
Hex
Sample Acquisition Time (see Note 2)
External Clock (XTAL)
Internal RC Oscillator (ADRC = 1)
12
12
tAD
s
Input Capacitance
PC3/AN3–PC6/AN0
—12
pF
Analog Input Voltage
VSS
VRH
V
Input Leakage (see Note 4)
AN0–AN3
VRH
±1
A
NOTES:
1. A/D accuracy may decrease proportionately as VRH is reduced below 4.0 V.
2. Source impedances greater than 10 k
adversely affect internal RC charging time during input sampling.
3. tAD = tcyc if clock source is MCU.
4. The external system error caused by input leakage current is approximately equal to the product of R source and input
current.
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