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参数资料
| 型号： | ST62T32BB6 |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, OTPROM, 8 MHz, MICROCONTROLLER, CDIP42 |
| 封装： | CERAMIC, SDIP-42 |
| 文件页数： | 7/83页 |
| 文件大小： | 1815K |
| 代理商： | ST62T32BB6 |
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ST62T32B ST62E32B
1.4 PROGRAMMING MODES
1.4.1 Option Byte
The Option Byte allows configuration capability to
the MCUs. Option byte’s content is automatically
read, and the selected options enabled, when the
chip reset is activated.
It can only be accessed during the programming
mode. This access is made either automatically
(copy from a master device) or by selecting the
OPTION BYTE PROGRAMMING mode of the pro-
grammer.
The option byte is located in a non-user map. No
address has to be specified.
EPROM Code Option Byte
Bit 7. Reserved.
Bit 6 = PORT PULL. This bit must be set high to
have pull-up input state at reset on the I/O port.
When this bit is low, I/O ports are in input without
pull-up (high impedance) state at reset
Bit 5 = EXTCNTL. This bit selects the External
STOP Mode capability. When EXTCNTL is high,
pin NMI controls if the STOP mode can be ac-
cessed when the watchdog is active. When EXTC-
NTL is low, the STOP instruction is processed as a
WAIT as soon as the watchdog is active.
Bit 4 = PROTECT. This bit allows the protection of
the software contents against piracy. When the bit
PROTECT is set high, readout of the OTP con-
tents is prevented by hardware. No programming
equipment is able to gain access to the user pro-
gram. When this bit is low, the user program can
be read.
Bit 3 = NMI PULL. This bit must be set high to con-
figure the NMI pin with a pull up resistor when it is
low, no pull up is provided.
Bit 2 = TIM PULL. This bit must be set high to con-
figure the TIMER pin with a pull up resistor. When
it is low, no pull up is provided.
Bit 1 = WDACT. This bit controls the watchdog ac-
tivation. When it is high, hardware activation is se-
lected. The software activation is selected when
WDACT is low.
Bit 0 = OSGEN. This bit must be set high to enable
the oscillator Safe Guard. When this bit is low, the
OSG is disabled.
The Option byte is written during programming ei-
ther by using the PC menu (PC driven Mode) or
automatically (stand-alone mode)
1.4.2 Program Memory
EPROM/OTP programming mode is set by a
+12.5V voltage applied to the TEST/VPP pin. The
programming flow of the ST62T32B/E32B is de-
scribed in the User Manual of the EPROM Pro-
gramming Board.
The
MCUs
can
be
programmed
with
the
ST62E3xB EPROM programming tools available
from STMicroelectronics.
1.4.3 EEPROM Data Memory
EEPROM data pages are supplied in the virgin
state FFh. Partial or total programming of EEP-
ROM data memory can be performed either
through the application software, or through an ex-
ternal programmer. Any STMicroelectronics tool
used for the program memory (OTP/EPROM) can
also be used to program the EEPROM data mem-
ory.
1.4.4 EPROM Erasing
The EPROM of the windowed package of the
MCUs may be erased by exposure to Ultra Violet
light. The erasure characteristic of the MCUs is
such that erasure begins when the memory is ex-
posed to light with a wave lengths shorter than ap-
proximately 4000. It should be noted that sun-
lights and some types of fluorescent lamps have
wavelengths in the range 3000-4000.
It is thus recommended that the window of the
MCUs packages be covered by an opaque label to
prevent unintentional erasure problems when test-
ing the application in such an environment.
The recommended erasure procedure of the
MCUs EPROM is the exposure to short wave ul-
traviolet light which have a wave-length 2537A.
The integrated dose (i.e. U.V. intensity x exposure
time) for erasure should be a minimum of 15W-
sec/cm2. The erasure time with this dosage is ap-
proximately 15 to 20 minutes using an ultraviolet
lamp
with
12000W/cm2
power
rating. The
ST62E32B should be placed within 2.5cm (1Inch)
of the lamp tubes during erasure.
70
-
PORT
PULL
EXTCNTL PROTECT
NMI
PULL
TIM
PULL
WDACT OSGEN
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ST62T32BQ6 | 功能描述:8位微控制器 -MCU OTP EPROM 8K SPI/UAR 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 |
| ST62T35BQ6 | 功能描述:8位微控制器 -MCU OTP EPROM 8K 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 |
| ST62T40BQ6 | 功能描述:8位微控制器 -MCU OTP EPROM 8K SPI 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 |
| ST62T42BQ6 | 功能描述:8位微控制器 -MCU OTP EPROM 8K SPI 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 |
| ST62T45BQ6 | 功能描述:8位微控制器 -MCU OTP EPROM 8K 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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