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参数资料
型号： PIC16LC716-04/SS
元件分类： 微控制器/微处理器
英文描述： 8-BIT, OTPROM, 4 MHz, RISC MICROCONTROLLER, PDSO20
封装： 0.209 INCH, PLASTIC, MO-150, SSOP-20
文件页数： 62/106页
文件大小： 1718K
代理商： PIC16LC716-04/SS
2005 Microchip Technology Inc.
DS41106B-page 57
PIC16C712/716
FIGURE 9-8:
EXTERNAL BROWN-OUT
PROTECTION CIRCUIT 1
FIGURE 9-9:
EXTERNAL BROWN-OUT
PROTECTION CIRCUIT 2
FIGURE 9-10:
EXTERNAL BROWN-OUT
PROTECTION CIRCUIT 3
9.8
Time-out Sequence
On power-up the time-out sequence is as follows: First
PWRT time-out is invoked after the POR time delay has
expired. Then OST is activated. The total time-out will
vary based on oscillator configuration and the status of
the PWRT. For example, in RC mode with the PWRT
disabled, there will be no time-out at all. Figure 9-11,
Figure 9-12,
and
Figure 9-13
depict
time-out
sequences on power-up.
Since the time-outs occur from the POR pulse, if MCLR
is kept low long enough, the time-outs will expire. Then
bringing MCLR high will begin execution immediately
(Figure 9-13). This is useful for testing purposes or to
synchronize more than one PIC16CXXX device
operating in parallel.
Table 9-5 shows the Reset conditions for some Special
Function Registers, while Table 9-6 shows the Reset
conditions for all the registers.
Note 1: This circuit will activate Reset when
VDD goes below (Vz + 0.7V) where
Vz = Zener voltage.
2: Internal Brown-out Reset circuitry
should be disabled when using this
circuit.
VDD
33k
10k
40k
VDD
MCLR
PIC16C7XX
Q1
Note 1: This brown-out circuit is less expensive,
albeit less accurate. Transistor Q1 turns
off when VDD is below a certain level
such that:
2: Internal Brown-out Reset should be
disabled when using this circuit.
3: Resistors should be adjusted for the
characteristics of the transistor.
VDD x
R1
R1 + R2
= 0.7V
VDD
R2
40k
VDD
MCLR
PIC16C7XX
R1
Q1
This
brown-out
protection
circuit
employs
Microchip Technology’s MCP809 microcontroller
supervisor. The MCP8XX and MCP1XX families
of supervisors provide push-pull and open
collector outputs with both high and low active
Reset pins. There are 7 different trip point
selections to accommodate 5V and 3V systems
MCLR
PIC16C7XX
VDD
VDD
Vss
RST
MCP809
VDD
bypass
capacitor
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相关代理商/技术参数
参数描述
PIC16LC716T-04/SO 功能描述:8位微控制器 -MCU 3.5KB 128 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
PIC16LC716T-04/SS 功能描述:8位微控制器 -MCU 3.5KB 128 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
PIC16LC716T-04I/SO 功能描述:8位微控制器 -MCU 3.5KB 128 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
PIC16LC716T-04I/SS 功能描述:8位微控制器 -MCU 3.5KB 128 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
PIC16LC717/P 功能描述:8位微控制器 -MCU 3.5KB 256 RAM 16 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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