参数资料
型号: EP20K100BC196-2
厂商: ALTERA CORP
元件分类: PLD
英文描述: LOADABLE PLD, PBGA196
文件页数: 43/68页
文件大小: 975K
代理商: EP20K100BC196-2
48
4317K–AVR–03/2013
AT90PWM2/3/2B/3B
Figure 9-3.
MCU Start-up, RESET Extended Externally
9.0.4
External Reset
An External Reset is generated by a low level on the RESET pin. Reset pulses longer than the
minimum pulse width (see Table 9-1) will generate a reset, even if the clock is not running.
Shorter pulses are not guaranteed to generate a reset. When the applied signal reaches the
Reset Threshold Voltage – V
RST – on its positive edge, the delay counter starts the MCU after
the Time-out period – t
TOUT – has expired.
Figure 9-4.
External Reset During Operation
9.0.5
Brown-out Detection
AT90PWM2/2B/3/3B has an On-chip Brown-out Detection (BOD) circuit for monitoring the V
CC
level during operation by comparing it to a fixed trigger level. The trigger level for the BOD can
be selected by the BODLEVEL Fuses. The trigger level has a hysteresis to ensure spike free
Brown-out Detection. The hysteresis on the detection level should be interpreted as V
BOT+ =
V
BOT + VHYST/2 and VBOT- = VBOT - VHYST/2.
RESET
TIME-OUT
INTERNAL
RESET
t
TOUT
V
POT
V
RST
VCC
CC
Table 9-2.
BODLEVEL Fuse Coding
BODLEVEL 2..0 Fuses
Min VBOT
Typ VBOT
Max VBOT
Units
111
BOD Disabled
110
4.5
V
101
2.7
V
100
4.3
V
011
4.4
V
相关PDF资料
PDF描述
EP20K100BC196-3 LOADABLE PLD, PBGA196
EP20K100BI196-1 LOADABLE PLD, PBGA196
EP20K100BI196-2 LOADABLE PLD, PBGA196
EP20K100BI196-3 LOADABLE PLD, PBGA196
EP20K100BC324-1 LOADABLE PLD, PBGA324
相关代理商/技术参数
参数描述
EP20K100BC356-1 功能描述:FPGA - 现场可编程门阵列 CPLD - APEX 20K 416 Macro 252 IOs RoHS:否 制造商:Altera Corporation 系列:Cyclone V E 栅极数量: 逻辑块数量:943 内嵌式块RAM - EBR:1956 kbit 输入/输出端数量:128 最大工作频率:800 MHz 工作电源电压:1.1 V 最大工作温度:+ 70 C 安装风格:SMD/SMT 封装 / 箱体:FBGA-256
EP20K100BC356-1ES 制造商:未知厂家 制造商全称:未知厂家 功能描述:FPGA
EP20K100BC356-1V 制造商:Rochester Electronics LLC 功能描述:- Bulk
EP20K100BC356-2 功能描述:FPGA - 现场可编程门阵列 CPLD - APEX 20K 416 Macro 252 IOs RoHS:否 制造商:Altera Corporation 系列:Cyclone V E 栅极数量: 逻辑块数量:943 内嵌式块RAM - EBR:1956 kbit 输入/输出端数量:128 最大工作频率:800 MHz 工作电源电压:1.1 V 最大工作温度:+ 70 C 安装风格:SMD/SMT 封装 / 箱体:FBGA-256
EP20K100BC356-2ES 制造商:未知厂家 制造商全称:未知厂家 功能描述:FPGA