參數(shù)資料
型號： MC68L11FC0FU4
廠商： MOTOROLA INC
元件分類： 微控制器/微處理器
英文描述： Technical Summary 8-Bit Microcontroller
中文描述： 8-BIT, MICROCONTROLLER, PQFP64
封裝： QFP-64
文件頁數(shù)： 53/68頁
文件大?。?/td> 486K
代理商： MC68L11FC0FU4
MC68HC11F1/FC0
MC68HC11FTS/D
MOTOROLA
53
11 Analog-to-Digital Converter
The MC68HC11F1 analog-to-digital (A/D) converter system uses an all-capacitive charge-redistribution
technique to convert analog signals to digital values. The A/D system is an 8-channel, 8-bit, multiplexed-
input, successive-approximation converter, accurate to
±
1 least significant bit (LSB). Because the ca-
pacitive charge redistribution technique used includes a built-in sample-and-hold, no external sample-
and-hold is required.
Dedicated lines V
RH
and V
RL
provide the reference supply voltage inputs. Systems operating at clock
rates of 750 kHz or below must use an internal RC oscillator. The CSEL bit in the OPTION register se-
lects the clock source for the A/D system. (The CSEL bit is described in
11.3 A/D Registers
, page 56.)
A multiplexer allows the single A/D converter to select one of 16 analog signals, as shown in
Table 24
.
NOTE
The A/D converter is present on the MC68HC11F1 only
.
Figure 14 A/D Converter Block Diagram
EA9 A/D BLOCK
PE0
AN0
PE1
AN1
PE2
AN2
PE3
AN3
PE4
AN4
PE5
AN5
PE6
AN6
PE7
AN7
ANALOG
MUX
8-BIT CAPACITIVE DAC
WITH SAMPLE AND HOLD
SUCCESSIVE APPROXIMATION
REGISTER AND CONTROL
ADCTL
A/D CONTROL
C
C
C
M
S
C
C
ADR1
A/D RESULT 1
ADR2
A/D RESULT 2
ADR3
A/D RESULT 3
ADR4
A/D RESULT 4
RESULT REGISTER INTERFACE
RESULT
INTERNAL
DATA BUS
V
RH
V
RL
相關(guān)PDF資料
PDF描述
MC68L11F1CFN3 Audio control and Instrumentation Cable; Number of Conductors:10; Conductor Size AWG:22; No. Strands x Strand Size:7 x 30; Jacket Material:Polyvinylchloride (PVC); Conductor Material:Copper; Jacket Color:Gray RoHS Compliant: Yes
MC68L11F1CPU3 Multiconductor Cable; Number of Conductors:12; Conductor Size AWG:22; No. Strands x Strand Size:7 x 30; Jacket Material:Polyvinylchloride (PVC); Leaded Process Compatible:Yes; Conductor Material:Copper; Features:Unshielded RoHS Compliant: Yes
MC68L11F1FN3 Multiconductor Audio, Control & Instrumentation Cable; Number of Conductors:15; Conductor Size AWG:22; No. Strands x Strand Size:7 x 30; Jacket Material:Polyvinylchloride (PVC); Conductor Material:Copper; Conductor Plating:Tin RoHS Compliant: Yes
MC68L11F1PU3 Technical Summary 8-Bit Microcontroller
MC74AC00 QUAD 2-INPUT NAND GATE
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC68L11K1FN2R2 制造商:Motorola Inc 功能描述:
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MC68L711E9FU2 制造商:Rochester Electronics LLC 功能描述: 制造商:Freescale Semiconductor 功能描述:
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