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| 型號(hào)： | PIC16C620 |
| 廠(chǎng)商： | Microchip Technology Inc. |
| 英文描述： | EPROM-Based 8-Bit CMOS Microcontroller(每個(gè)I/O口有25mA驅(qū)動(dòng)/吸收電流,可編程VREF,2.5V的微控制器) |
| 中文描述： | 存儲(chǔ)器為基礎(chǔ)的8位CMOS微控制器（每個(gè)的I / O口有25毫安驅(qū)動(dòng)/吸收電流，可編程參考電壓，為2.5V的微控制器） |
| 文件頁(yè)數(shù)： | 60/112頁(yè) |
| 文件大?。?/td> | 1205K |
| 代理商： | PIC16C620 |
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PIC16C62X(A)
DS30235F-page 60
Preliminary
1997 Microchip Technology Inc.
9.9
Code Protection
If the code protection bit(s) have not been
programmed, the on-chip program memory can be
read out for verification purposes.
9.10
ID Locations
Four memory locations (2000h-2003h) are designated
as ID locations where the user can store checksum or
other code-identification numbers. These locations are
not accessible during normal execution but are
readable and writable during program/verify. Only the
least significant 4 bits of the ID locations are used.
Note:
Microchip does not recommend code
protecting windowed devices.
9.11
In-Circuit Serial Programming
The PIC16C62X(A) microcontrollers can be serially
programmed while in the end application circuit. This is
simply done with two lines for clock and data, and three
other lines for power, ground, and the programming
voltage. This allows customers to manufacture boards
with unprogrammed devices, and then program the
microcontroller just before shipping the product. This
also allows the most recent firmware or a custom
firmware to be programmed.
The device is placed into a program/verify mode by
holding the RB6 and RB7 pins low while raising the
MCLR (V
PP
) pin from V
IL
to V
IHH
(see programming
specification). RB6 becomes the programming clock
and RB7 becomes the programming data. Both RB6
and RB7 are Schmitt Trigger inputs in this mode.
After reset, to place the device into programming/verify
mode, the program counter (PC) is at location 00h. A
6-bit command is then supplied to the device.
Depending on the command, 14-bits of program data
are then supplied to or from the device, depending if the
command was a load or a read. For complete details of
serial
programming,
please
PIC16C6X/7X/9XX Programming Specifications (Liter-
ature #DS30228).
A typical in-circuit serial programming connection is
shown in Figure 9-20.
refer
to
the
FIGURE 9-20: TYPICAL IN-CIRCUIT SERIAL
PROGRAMMING
CONNECTION
External
Connector
Signals
To Normal
Connections
To Normal
Connections
PIC16C62X(A)
V
DD
V
SS
MCLR/V
PP
RB6
RB7
+5V
0V
V
PP
CLK
Data I/O
V
DD
相關(guān)PDF資料 |
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| PIC16C621 | EPROM-Based 8-Bit CMOS Microcontroller(每個(gè)I/O口有25mA驅(qū)動(dòng)/吸收電流,可編程參考電壓，微控制器) |
| pic16c621a | EPROM-Based 8-Bit CMOS Microcontroller(8位CMOS微控制器) |
| PIC16C622 | EPROM-Based 8-Bit CMOS Microcontroller(每個(gè)I/O口有25mA驅(qū)動(dòng)/吸收電流,可編程VREF,2.5V的微控制器) |
| pic16c622a | EPROM-Based 8-Bit CMOS Microcontroller(8位CMOS微控制器) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PIC16C620/JW | 功能描述:8位微控制器 -MCU .875KB 80 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(xiàn)寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)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 |
| PIC16C620-04/P | 功能描述:8位微控制器 -MCU .875KB 80 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(xiàn)寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)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 |
| PIC16C620-04/P | 制造商:Microchip Technology Inc 功能描述:IC 8BIT CMOS MCU 16C620 DIP18 |
| PIC16C620-04/SO | 功能描述:8位微控制器 -MCU .875KB 80 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(xiàn)寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)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 |
| PIC16C620-04/SS | 功能描述:8位微控制器 -MCU .875KB 80 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(xiàn)寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)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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