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參數(shù)資料
| 型號： | PIC16C621A |
| 廠商： | Allegro MicroSystems, Inc. |
| 元件分類： | 8位微控制器 |
| 英文描述： | 8-bit Microcontroller(8位微控制器) |
| 中文描述： | 8位微控制器（8位微控制器） |
| 文件頁數(shù)： | 3/8頁 |
| 文件大小： | 89K |
| 代理商： | PIC16C621A |
PIC16C621A
8-BIT
MICROCONTROLLER
3
The versatility offered by software control allows the
operating modes listed in Table 1. This table itemizes the
various logic inputs that determine direction, stepping
format, reset, 1/8th vs 1/16th sub-steps, etc. Note that
during power up, shift clock (SCLK) is sampled for a pull-
up or pull-down resistor to establish the fractional step
limit. A pull up sets up a 1/8th-step format (for the
A3955) and pull down sets up 1/16th-operation (for the
A3957).
Table 2 lists the microcontroller terminal descriptions
and provides the essence of the circuit operation (a
schematic illustrating a typical stepper design follows). A
brief description of the microcontroller I/O should clarify
the connections of the various elements of the drive
electronics.
FUNCTIONAL DESCRIPTION (cont’d)
Table 1 — Controller/sequencer IC operational logic
Binary inputs
MS2
Operating mode
(Command executed on L
→
H of CLK)
Comments
DIR
MS1
MS0
(Applicable power ICs)
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
CW, Full step (single-phase)
CW, Half step (constant torque)
CW, 1/4 step (constant torque)
CW, 1/8th step (constant torque)
CW, 1/16th step (constant torque)
Disable A3955/57 holding torque
Enable A3955/57 holding torque
Reset
PIC16C621A
sequencer IC
CCW, full step (single-phase)
CCW, half step (constant torque)
CCW, 1/4 step (constant torque)
CCW, 1/8th step (constant torque)
CCW, 1/16th step (constant torque)
Disable A3955/57 holding torque
Enable A3955/57 holding torque
Reset
PIC16C621A
sequencer IC
A3955/57
A3955/57
A3955/57
A3955/57
A3957 only
At present position
From present position
A3955/57
A3955/57
A3955/57
A3955/57
A3955/57
A3957 only
At present position
From present position
A3955/57
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PIC16C621A/JW | 功能描述:8位微控制器 -MCU 1.75KB 96 RAM 13 I/O RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
| PIC16C621A-04/P | 功能描述:8位微控制器 -MCU 1.75KB 96 RAM 13 I/O RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
| PIC16C621A-04/P | 制造商:Microchip Technology Inc 功能描述:IC 8BIT CMOS MCU 16C621 DIP18 |
| PIC16C621A-04/SO | 功能描述:8位微控制器 -MCU 1.75KB 96 RAM 13 I/O RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
| PIC16C621A-04/SS | 功能描述:8位微控制器 -MCU 1.75KB 96 RAM 13 I/O RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
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