參數(shù)資料
型號(hào): SC16C2550BIBS,151
廠商: NXP Semiconductors
文件頁數(shù): 26/31頁
文件大?。?/td> 0K
描述: IC UART DUAL W/FIFO 32-HVQFN
產(chǎn)品培訓(xùn)模塊: Stand-Alone UARTs
標(biāo)準(zhǔn)包裝: 490
特點(diǎn): 故障啟動(dòng)位檢測(cè)
通道數(shù): 2,DUART
FIFO's: 16 字節(jié)
電源電壓: 2.5V,3.3V,5V
帶自動(dòng)流量控制功能:
帶故障啟動(dòng)位檢測(cè)功能:
帶調(diào)制解調(diào)器控制功能:
帶CMOS:
安裝類型: 表面貼裝
封裝/外殼: 32-VFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝: 32-HVQFN(5x5)
包裝: 托盤
產(chǎn)品目錄頁面: 828 (CN2011-ZH PDF)
其它名稱: 568-3259
935280309151
SC16C2550BIBS-S
43
2570N–AVR–05/11
ATmega325/3250/645/6450
Figure 11-3. MCU Start-up, RESET Extended Externally
11.4
External Reset
An External Reset is generated by a low level on the RESET pin. Reset pulses longer than the
minimum pulse width (see “System and Reset Characteristics” on page 301) 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 11-4. External Reset During Operation
11.5
Brown-out Detection
Atmel ATmega325/3250/645/6450 has an On-chip Brown-out Detection (BOD) circuit for moni-
toring 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+ = VBOT + VHYST/2 and VBOT- = VBOT - VHYST/2. When the BOD is enabled, and VCC
decreases to a value below the trigger level (V
BOT- in Figure 11-5 on page 44), the Brown-out
Reset is immediately activated. When V
CC increases above the trigger level (VBOT+ in Figure 11-
5 on page 44), the delay counter starts the MCU after the Time-out period t
TOUT has expired.
The BOD circuit will only detect a drop in V
CC if the voltage stays below the trigger level for lon-
ger than t
RESET
TIME-OUT
INTERNAL
RESET
t
TOUT
V
POT
V
RST
VCC
CC
相關(guān)PDF資料
PDF描述
SC16C752BIBS,151 IC UART DUAL W/FIFO 32-HVQFN
SC16C752BIBS,128 IC DUAL UART 64BYTE 32HVQFN
SC16C554BIB80,528 IC UART QUAD W/FIFO 80-LQFP
ATMEGA88-15AZ MCU AVR 8K FLASH 15MHZ 32-TQFP
SC16C752BIB48,151 IC DUAL UART 64BYTE 48LQFP
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SC16C2550BIBS-F 功能描述:UART 接口集成電路 16CB 2.5V-5V 2CH UART 16B FIFO RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel
SC16C2550BIN40 功能描述:UART 接口集成電路 16CB 2.5V-5V 2CH UART 16B FIFO RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel
SC16C2550BIN40,112 功能描述:UART 接口集成電路 16CB 2.5V-5V 2CH RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel
SC16C2550IA44 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Dual UART with 16 bytes of transmit and receive FIFOs and infrared (IrDA) encoder/decoder
SC16C2550IA44,512 功能描述:UART 接口集成電路 16C 2.5V-5V 2CH UART 16B FIFO RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel