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参数资料
型号： PIC16C620A-04/P301
元件分类： 微控制器/微处理器
英文描述： 8-BIT, OTPROM, 4 MHz, RISC MICROCONTROLLER, PDIP18
封装： 0.300 INCH, PLASTIC, DIP-18
文件页数： 66/108页
文件大小： 674K
代理商： PIC16C620A-04/P301
PIC16C62X
DS30235G-page 60
Preliminary
1998 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 verication purposes.
9.10
ID Locations
Four memory locations (2000h-2003h) are designated
as ID locations where the user can store checksum or
other code-identication numbers. These locations are
not accessible during normal execution but are
readable and writable during program/verify. Only the
least signicant 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 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 rmware or a custom
rmware to be programmed.
The device is placed into a program/verify mode by
holding the RB6 and RB7 pins low while raising the
MCLR (VPP) pin from VIL to VIHH (see programming
specication). 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
refer
to
the
PIC16C6X/7X/9XX
Programming
Specications
(#DS30228).
A typical in-circuit serial programming connection is
shown in Figure 9-19.
FIGURE 9-19: TYPICAL IN-CIRCUIT SERIAL
PROGRAMMING
CONNECTION
External
Connector
Signals
To Normal
Connections
To Normal
Connections
PIC16C62X
VDD
VSS
MCLR/VPP
RB6
RB7
+5V
0V
VPP
CLK
Data I/O
VDD
相关PDF资料
PDF描述
PIC16C620A-20/P301 8-BIT, OTPROM, 20 MHz, RISC MICROCONTROLLER, PDIP18
PIC16LC620A-20/P 8-BIT, OTPROM, 20 MHz, RISC MICROCONTROLLER, PDIP18
PIC16C621-20/SS 8-BIT, OTPROM, 20 MHz, RISC MICROCONTROLLER, PDSO20
PIC16C622T-20I/SO 8-BIT, OTPROM, 20 MHz, RISC MICROCONTROLLER, PDSO18
PIC16LCR620AT-04I/SO 8-BIT, MROM, 4 MHz, RISC MICROCONTROLLER, PDSO18
相关代理商/技术参数
参数描述
PIC16C620A-20/P 功能描述:8位微控制器 -MCU .875KB 96 RAM 13 I/O 20 MHz PDIP18 RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
PIC16C620A-20/P 制造商:Microchip Technology Inc 功能描述:IC 8BIT CMOS MCU 16C620 DIP18
PIC16C620A-20/SO 功能描述:8位微控制器 -MCU .875KB 96 RAM 13 I/O 20 MHz SOIC18 RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
PIC16C620A-20/SS 功能描述:8位微控制器 -MCU .875KB 96 RAM 13 I/O 20 MHz SSOP20 RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
PIC16C620A-20E/P 功能描述:8位微控制器 -MCU .875KB 96 RAM 13 I/O RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
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