參數(shù)資料
型號： S1C88816D
元件分類： 微控制器/微處理器
英文描述： 8-BIT, MROM, 8.2 MHz, MICROCONTROLLER, UUC164
封裝： DIE-164
文件頁數(shù)： 36/173頁
文件大?。?/td> 1411K
代理商： S1C88816D
122
EPSON
S1C88816 TECHNICAL MANUAL
5 PERIPHERAL CIRCUITS AND THEIR OPERATION (A/D Converter)
5.15 A/D Converter
5.15.1 Characteristics and
configuration of A/D converter
The S1C88816 has a built-in A/D converter with the
following characteristics.
Conversion formula: Successive-approximation
type
Resolution:
10 bits
Input channel:
Maximum 4 channels
Conversion time:
Minimum 11 sec
(in 2 MHz operation)
Setting of analog conversion voltage range is
possible with reference voltage terminal (AVREF)
A/D conversion result is possible to read from
10-bit data register
Sample & hold circuit built-in
A/D conversion completion generates an inter-
rupt
Figure 5.15.1.1 shows the configuration of the A/D
converter.
s AVREF (reference voltage input terminal)
The AVREF terminal is the reference voltage
terminal of the analog block. Input voltage range of
the A/D conversion is decided by this input. The
voltage should be input as AVREF
≤ AVDD.
s AD4–AD7 (analog input terminals)
The analog input terminals AD4–AD7 are shared
with the I/O port terminals P14–P17. Therefore, it
is necessary to set them for the A/D converter by
software when using them as analog input termi-
nals. This setting can be done for each terminal.
(Refer to Section 5.15.4 for setting.)
At initial reset, all the terminals are set in the I/O
port terminal.
Analog voltage value AVIN that can be input is in
the range of AVSS
≤ AGND ≤ AVIN ≤ AVREF.
5.15.3 Mask option
s Pull-up resistor
I/O port pull-up resistors
P14 (AD4)
s
s With resistor
s
s Gate direct
P15 (AD5)
s
s With resistor
s
s Gate direct
P16 (AD6)
s
s With resistor
s
s Gate direct
P17 (AD7)
s
s With resistor
s
s Gate direct
The input terminals of the A/D converter are
shared with the I/O port terminals P14–P17.
Therefore, the terminal specification of the A/D
converter is decided by setting the I/O port mask
option. Select "Gate direct" for the port correspond-
ing to the channel to be used to obtain the conver-
sion precision.
10-bit
D/A converter
Data
bus
AVDD
AVREF
AGND
AVSS
Analog
multiplexer
Control circuit
AD4 (P14)
AD5 (P15)
AD6 (P16)
AD7 (P17)
Successive
conversion
register
Converted data
(ADDR)
OSC3
oscillation circuit
Prescaler
Interrupt
circuit
+
–
Sample/hold
circuit
Comparator
fOSC3
fOSC3/1–fOSC3/64, fOSC1/1
Fig. 5.15.1.1 Configuration of A/D converter
5.15.2 Terminal configuration
of A/D converter
The terminals used with the A/D converter are as
follows:
s AVDD, AGND, AVSS (power supply terminals)
The AVDD, AGND and AVSS terminals are power
supply terminals for the A/D converter. The
voltage should be input as AVDD
≤ VDD and
AGND
≤ AVSS = VSS.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
S1C88848 制造商:EPSON 制造商全稱:EPSON 功能描述:8-bit Single Chip Microcomputer
S1C8F360D411000 功能描述:16位微控制器 - MCU 8-bit Flash 60KB LCD Dr. 51 x 32 RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數(shù)據(jù)總線寬度:16 bit 最大時鐘頻率:24 MHz 程序存儲器大小:8 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:VQFN-40 安裝風(fēng)格:SMD/SMT
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S1C8F360F413100 功能描述:16位微控制器 - MCU 8-bit Flash 60KB LCD Dr. 51 x 32 RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數(shù)據(jù)總線寬度:16 bit 最大時鐘頻率:24 MHz 程序存儲器大小:8 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:VQFN-40 安裝風(fēng)格:SMD/SMT
S1C8F360F513200 功能描述:16位微控制器 - MCU 8-bit Flash 60KB LCD Dr. 51 x 32 RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數(shù)據(jù)總線寬度:16 bit 最大時鐘頻率:24 MHz 程序存儲器大小:8 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:VQFN-40 安裝風(fēng)格:SMD/SMT
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