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| 型号： | ADUC832BCPZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 86/92页 |
| 文件大小： | 0K |
| 描述： | IC MCU 62K FLASH ADC/DAC 56LFCSP |
| 标准包装： | 1 |
| 系列： | MicroConverter® ADuC8xx |
| 核心处理器： | 8052 |
| 芯体尺寸： | 8-位 |
| 速度： | 16MHz |
| 连通性： | EBI/EMI，I²C，SPI，UART/USART |
| 外围设备： | PSM，温度传感器，WDT |
| 输入/输出数： | 34 |
| 程序存储器容量： | 62KB（62K x 8） |
| 程序存储器类型： | 闪存 |
| EEPROM 大小： | 4K x 8 |
| RAM 容量： | 2.25K x 8 |
| 电压 - 电源 (Vcc/Vdd)： | 2.7 V ~ 5.5 V |
| 数据转换器： | A/D 8x12b，D/A 2x12b |
| 振荡器型： | 内部 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 56-VFQFN 裸露焊盘，CSP |
| 包装： | 托盘 |
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Data Sheet
ADuC832
Rev. B | Page 87 of 92
OTHER HARDWARE CONSIDERATIONS
To facilitate in-circuit programming, plus in-circuit debug and
emulation options, implement some simple connection points
in the hardware that allow easy access to download, debug, and
emulation modes.
IN-CIRCUIT SERIAL DOWNLOAD ACCESS
Nearly all ADuC832 designs can take advantage of the in-circuit
reprogrammability of the chip. This is accomplished by a
connection to the ADuC832 UART, which requires an external
RS-232 chip for level translation if downloading code from a
PC. Basic configuration of an RS-232 connection is illustrated
in Figure 94 with a simple ADM202-based circuit. To avoid
designing an RS-232 chip onto a board, refer to the uC006
Technical Note, A 4-Wire UART-to-PC Interface, available at
www.analog.com, for a simple (and zero-cost-per-board)
method of gaining in-circuit serial download access to the
ADuC832.
In addition to the basic UART connections, users also need a way
to trigger the chip into download mode. This is accomplished via a
1 kΩ pull-down resistor that can be jumpered onto the PSEN
pin, as shown in Figure 94. To put the ADuC832 into download
mode, connect this jumper and power-cycle the device (or
manually reset the device, if a manual reset button is available)
so that it can receive a new program serially. With the jumper
removed, the device comes up in normal mode (and runs the
program) whenever power is cycled or RESET is toggled.
Note that PSEN is normally an output (as described in the
External Memory Interface section) and is sampled as an input
only on the falling edge of RESET (that is, at power-up or upon
an external manual reset). Note also that if any external circuitry
unintentionally pulls PSEN low during power-up or reset events, it
may cause the chip to enter download mode and therefore fail
to begin user code execution as it should. To prevent this, ensure
that no external signals are capable of pulling the PSEN pin low,
except for the external PSEN jumper itself.
EMBEDDED SERIAL PORT DEBUGGER
From a hardware perspective, entry into serial port debug mode
is identical to the serial download entry sequence described in
the In-Circuit Serial Download Access section. In fact, both
serial download and serial port debug modes can be thought of
as essentially one mode of operation used in two different ways.
Note that the serial port debugger is fully contained on the
ADuC832 device (unlike ROM monitor type debuggers) and
therefore no external memory is needed to enable in-system
debug sessions.
SINGLE-PIN EMULATION MODE
Also built into the ADuC832 is a dedicated controller for single-pin
in-circuit emulation (ICE) using standard production ADuC832
devices. In this mode, emulation access is gained by connection
to a single pin, the EA pin. Normally, this pin is hardwired
either high or low to select execution from internal or external
program memory space. To enable single-pin emulation mode,
however, users need to pull the EA pin high through a 1 kΩ
resistor, as shown in Figure 94. The emulator then connects to
the 2-pin header, also shown in Figure 94. To be compatible with
the standard connector that comes with the single-pin emulator,
use a 2-pin 0.1 inch pitch friction lock header from Molex such as
Part Number 22-27-2021. Be sure to observe the polarity of this
header. As represented in Figure 94, when the friction lock tab is
located on the right, the ground pin should be the lower of the
two pins (when viewed from the top).
TYPICAL SYSTEM CONFIGURATION
A typical ADuC832 configuration is shown in Figure 94. It
summarizes some of the hardware considerations discussed in
the Single-Pin Emulation Mode section.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ADUC832BCPZ-REEL | 功能描述:IC MCU 62K FLASH ADC/DAC 56LFCSP RoHS:是 类别:集成电路 (IC) >> 嵌入式 - 微控制器， 系列:MicroConverter® ADuC8xx 标准包装:38 系列:Encore!® XP® 核心处理器:eZ8 芯体尺寸:8-位 速度:5MHz 连通性:IrDA，UART/USART 外围设备:欠压检测/复位，LED，POR，PWM，WDT 输入/输出数:16 程序存储器容量:4KB（4K x 8） 程序存储器类型:闪存 EEPROM 大小:- RAM 容量:1K x 8 电压 - 电源 (Vcc/Vdd):2.7 V ~ 3.6 V 数据转换器:- 振荡器型:内部 工作温度:-40°C ~ 105°C 封装/外壳:20-SOIC（0.295"，7.50mm 宽） 包装:管件 其它名称:269-4116Z8F0413SH005EG-ND |
| ADUC832BS | 制造商:Analog Devices 功能描述:MCU 8-Bit ADuC8xx 8052 CISC 62KB Flash 3.3V/5V 52-Pin MQFP 制造商:Rochester Electronics LLC 功能描述:8BIT CISC 62KB FLASH 16.78MHZ 3.3/5V 52MQFP - Bulk 制造商:Analog Devices 功能描述:8BIT MCU +12BIT ADC LQFP52 832 |
| ADUC832BS-REEL | 制造商:Analog Devices 功能描述:MCU 8-Bit ADuC8xx 8052 CISC 62KB Flash 3.3V/5V 52-Pin MQFP T/R |
| ADUC832BSZ | 功能描述:IC ADC/DAC 12BIT W/MCU 52MQFP RoHS:是 类别:集成电路 (IC) >> 嵌入式 - 微控制器， 系列:MicroConverter® ADuC8xx 标准包装:250 系列:56F8xxx 核心处理器:56800E 芯体尺寸:16-位 速度:60MHz 连通性:CAN，SCI，SPI 外围设备:POR，PWM，温度传感器，WDT 输入/输出数:21 程序存储器容量:40KB（20K x 16） 程序存储器类型:闪存 EEPROM 大小:- RAM 容量:6K x 16 电压 - 电源 (Vcc/Vdd):2.25 V ~ 3.6 V 数据转换器:A/D 6x12b 振荡器型:内部 工作温度:-40°C ~ 125°C 封装/外壳:48-LQFP 包装:托盘 配用:MC56F8323EVME-ND - BOARD EVALUATION MC56F8323 |
| ADUC832BSZ-REEL | 功能描述:IC MCU 62K FLASH ADC/DAC 52MQFP RoHS:是 类别:集成电路 (IC) >> 嵌入式 - 微控制器， 系列:MicroConverter® ADuC8xx 标准包装:38 系列:Encore!® XP® 核心处理器:eZ8 芯体尺寸:8-位 速度:5MHz 连通性:IrDA，UART/USART 外围设备:欠压检测/复位，LED，POR，PWM，WDT 输入/输出数:16 程序存储器容量:4KB（4K x 8） 程序存储器类型:闪存 EEPROM 大小:- RAM 容量:1K x 8 电压 - 电源 (Vcc/Vdd):2.7 V ~ 3.6 V 数据转换器:- 振荡器型:内部 工作温度:-40°C ~ 105°C 封装/外壳:20-SOIC（0.295"，7.50mm 宽） 包装:管件 其它名称:269-4116Z8F0413SH005EG-ND |
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