参数资料
| 型号： | TS80C51RD2-MIE |
| 厂商： | Atmel |
| 文件页数： | 81/84页 |
| 文件大小： | 0K |
| 描述： | IC MCU 8BIT 768BYTE 40MHZ 44VQFP |
| 标准包装： | 800 |
| 系列： | 80C |
| 核心处理器： | 8051 |
| 芯体尺寸： | 8-位 |
| 速度： | 40/20MHz |
| 连通性： | UART/USART |
| 外围设备： | POR，PWM，WDT |
| 输入/输出数： | 32 |
| 程序存储器类型： | ROMless |
| RAM 容量： | 768 x 8 |
| 电压 - 电源 (Vcc/Vdd)： | 4.5 V ~ 5.5 V |
| 振荡器型： | 内部 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 44-QFP |
| 包装： | 托盘 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页当前第81页第82页第83页第84页
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 84
2007-2012 Microchip Technology Inc.
FIGURE 6-3:
BROWN-OUT SITUATIONS
6.5
External Reset (EXTR)
The external Reset is generated by driving the MCLR
pin low. The MCLR pin is a Schmitt trigger input with an
additional glitch filter. Reset pulses that are longer than
the minimum pulse-width will generate a Reset. Refer
minimum pulse-width specifications. The External
Reset (MCLR) Pin (EXTR) bit in the Reset Control
register (RCON) is set to indicate the MCLR Reset.
6.5.0.1
EXTERNAL SUPERVISORY CIRCUIT
Many systems have external supervisory circuits that
generate reset signals to Reset multiple devices in the
system. This external Reset signal can be directly con-
nected to the MCLR pin to Reset the device when the
rest of system is Reset.
6.5.0.2
INTERNAL SUPERVISORY CIRCUIT
When using the internal power supervisory circuit to
Reset the device, the external reset pin (MCLR) should
be tied directly or resistively to VDD. In this case, the
MCLR pin will not be used to generate a Reset. The
external reset pin (MCLR) does not have an internal
pull-up and must not be left unconnected.
6.6
Software RESET Instruction (SWR)
Whenever the RESET instruction is executed, the
device will assert SYSRST, placing the device in a
special Reset state. This Reset state will not re-
initialize the clock. The clock source in effect prior to the
RESET instruction will remain. SYSRST is released at
the next instruction cycle, and the reset vector fetch will
commence.
The Software Reset (Instruction) Flag (SWR) bit in the
Reset Control (RCON<6>) register is set to indicate
the software Reset.
6.7
Watchdog Time-out Reset (WDTO)
Whenever a Watchdog time-out occurs, the device will
asynchronously assert SYSRST. The clock source will
remain unchanged. A WDT time-out during Sleep or
Idle mode will wake-up the processor, but will not reset
the processor.
The Watchdog Timer Time-out Flag (WDTO) bit in the
Reset Control register (RCON<4>) is set to indicate
the
Watchdog
Reset.
Refer
to
“Watchdog Timer (WDT)” for more information on
Watchdog Reset.
6.8
Trap Conflict Reset
If a lower-priority hard trap occurs while a higher-prior-
ity trap is being processed, a hard trap conflict Reset
occurs. The hard traps include exceptions of priority
level 13 through level 15, inclusive. The address error
(level 13) and oscillator error (level 14) traps fall into
this category.
The Trap Reset Flag (TRAPR) bit in the Reset Control
register (RCON<15>) is set to indicate the Trap Conflict
Reset. Refer to Section 7.0 “Interrupt Controller” for
more information on trap conflict Resets.
VDD
SYSRST
VBOR
VDD
SYSRST
VBOR
VDD
SYSRST
VBOR
TBOR + TPWRT
VDD dips before PWRT expires
TBOR + TPWRT
相关PDF资料 |
PDF描述 |
|---|---|
| 51374-4073 | CONN FPC/FFC 40POS .5MM VERT SMD |
| 51374-3373 | CONN FPC/FFC 33POS .5MM VERT SMD |
| TS80C51RD2-MCE | IC MCU 8BIT 768BYTE 40MHZ 44VQFP |
| 51374-3073 | CONN FPC/FFC 30POS .5MM VERT SMD |
| TS80C51RD2-VCE | IC MCU 8BIT 768BYTE 40MHZ 44VQFP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TS80C51RD2-MIEB | 制造商:未知厂家 制造商全称:未知厂家 功能描述:8-Bit Microcontroller |
| TS80C51RD2-MIED | 制造商:未知厂家 制造商全称:未知厂家 功能描述:8-Bit Microcontroller |
| TS80C51RD2-MIER | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Microcontroller |
| TS80C51RD2-MIL | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:High Performance 8-bit Microcontroller |
| TS80C51RD2-MILB | 制造商:未知厂家 制造商全称:未知厂家 功能描述:8-Bit Microcontroller |
发布紧急采购，3分钟左右您将得到回复。