参数资料
型号: PIC18F44K22-I/MV
厂商: Microchip Technology
文件页数: 55/71页
文件大小: 0K
描述: MCU PIC 16KB FLASH 40QFN
产品培训模块: 8-bit PIC® Microcontroller Portfolio
标准包装: 73
系列: PIC® XLP™ 18F
核心处理器: PIC
芯体尺寸: 8-位
速度: 64MHz
连通性: I²C,SPI,UART/USART
外围设备: 欠压检测/复位,HLVD,POR,PWM,WDT
输入/输出数: 35
程序存储器容量: 16KB(8K x 16)
程序存储器类型: 闪存
EEPROM 大小: 256 x 8
RAM 容量: 768 x 8
电压 - 电源 (Vcc/Vdd): 1.8 V ~ 5.5 V
数据转换器: A/D 30x10b
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 40-UFQFN 裸露焊盘
包装: 管件
2010-2012 Microchip Technology Inc.
DS41412F-page 59
PIC18(L)F2X/4XK22
4.0
RESET
The PIC18(L)F2X/4XK22 devices differentiate between
various kinds of Reset:
a)
Power-on Reset (POR)
b)
MCLR Reset during normal operation
c)
MCLR Reset during power-managed modes
d)
Watchdog Timer (WDT) Reset (during
execution)
e)
Programmable Brown-out Reset (BOR)
f)
RESET
Instruction
g)
Stack Full Reset
h)
Stack Underflow Reset
This section discusses Resets generated by MCLR,
POR and BOR and covers the operation of the various
start-up timers. Stack Reset events are covered in
WDT Resets are covered in Section 24.3 “Watchdog
A simplified block diagram of the On-Chip Reset Circuit
is shown in Figure 4-1.
4.1
RCON Register
Device Reset events are tracked through the RCON
register (Register 4-1). The lower five bits of the
register indicate that a specific Reset event has
occurred. In most cases, these bits can only be cleared
by the event and must be set by the application after
the event. The state of these flag bits, taken together,
can be read to indicate the type of Reset that just
occurred.
This
is
described
in
more
detail
in
The RCON register also has control bits for setting
interrupt priority (IPEN) and software control of the
BOR (SBOREN). Interrupt priority is discussed in
BOR
is
covered
in
FIGURE 4-1:
SIMPLIFIED BLOCK DIAGRAM OF ON-CHIP RESET CIRCUIT
External Reset
MCLR
VDD
OSC1
WDT
Time-out
VDD
Detect
OST/PWRT
LFINTOSC
POR
OST(2)
10-bit Ripple Counter
PWRT(2)
11-bit Ripple Counter
Enable OST(1)
Enable PWRT
Note 1:
See Table 4-2 for time-out situations.
2:
PWRT and OST counters are reset by POR and BOR. See Sections 4.4 and 4.5.
Brown-out
Reset
BOREN
RESET
Instruction
Stack
Pointer
Stack Full/Underflow Reset
Sleep
( )_IDLE
1024 Cycles
65.5 ms
32
s
MCLRE
S
R
Q
Chip_Reset
相关PDF资料
PDF描述
D38999/20FD97PA CONN RCPT 12POS WALL MNT W/PINS
PIC18LF44K22-I/MV MCU PIC 16KB FLASH 40UQFN
6-5227079-8 CONN PLUG BNC BELDEN 89907 CRIMP
MS27484E12A8P CONN PLUG 8POS STRAIGHT W/PINS
V150A36E500B2 CONVERTER MOD DC/DC 36V 500W
相关代理商/技术参数
参数描述
PIC18F44K22T-I/ML 功能描述:8位微控制器 -MCU 16KB Flash 768B RAM 8b FamilynanoWat XLP 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
PIC18F44K22T-I/MV 功能描述:8位微控制器 -MCU 16KB FL 768b RAM8bit familynanoWatt XLP 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
PIC18F44K22T-I/PT 功能描述:8位微控制器 -MCU 16KB Flash 768B RAM 8b FamilynanoWat XLP 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
PIC18F4510-E/ML 功能描述:8位微控制器 -MCU 32KB 1536 RAM 36I/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
PIC18F4510-E/P 功能描述:8位微控制器 -MCU 32KB 1536 RAM 36I/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