參數(shù)資料
型號(hào)： SC16C650BIA44,512
廠商： NXP Semiconductors
文件頁(yè)數(shù)： 6/48頁(yè)
文件大?。?/td> 0K
描述： IC UART SOT187-2
標(biāo)準(zhǔn)包裝： 26
通道數(shù)： 1，UART
FIFO's： 32 字節(jié)
電源電壓： 2.5V，3.3V，5V
帶自動(dòng)流量控制功能： 是
帶IrDA 編碼器/解碼器： 是
帶故障啟動(dòng)位檢測(cè)功能： 是
帶調(diào)制解調(diào)器控制功能： 是
帶CMOS： 是
安裝類型： 表面貼裝
封裝/外殼： 44-LCC（J 形引線）
供應(yīng)商設(shè)備封裝： 44-PLCC
包裝： 管件
其它名稱： 935274392512
SC16C650BIA44
SC16C650BIA44-ND
SC16C650B_4
NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 04 — 14 September 2009
14 of 48
NXP Semiconductors
SC16C650B
UART with 32-byte FIFOs and IrDA encoder/decoder
6.8 DMA operation
The SC16C650B FIFO trigger level provides additional exibility to the user for block
mode operation. The user can optionally operate the transmit and receive FIFOs in the
DMA mode (FCR[3]). The DMA mode affects the state of the RXRDY and TXRDY output
pins. Table 6 and Table 7 show this.
Remark: DMA operation is not supported in the HVQFN32 package.
6.9 Sleep mode
The SC16C650B is designed to operate with low power consumption. A special Sleep
mode is included to further reduce power consumption when the chip is not being used.
With EFR[4] and IER[4] enabled (set to a logic 1), the SC16C650B enters the Sleep
mode, but resumes normal operation when a start bit is detected, a change of state on
any of the modem input pins RI, CTS, DSR, DCD, RX pin, or a transmit data is provided
by the user. If the Sleep mode is enabled and the SC16C650B is awakened by one of the
conditions described above, it will return to the Sleep mode automatically after the last
character is transmitted or read by the user. In any case, the Sleep mode will not be
entered while an interrupt(s) is pending. The SC16C650B will stay in the Sleep mode of
operation until it is disabled by setting IER[4] to a logic 0.
6.10 Loopback mode
The internal loopback capability allows on-board diagnostics. In the loopback mode, the
normal modem interface pins are disconnected and recongured for loopback internally.
MCR[3:0] register bits are used for controlling loopback diagnostic testing. In the loopback
mode, OUT1 (bit 2) and OUT2 (bit 3) in the MCR register control the modem RI and DCD
inputs, respectively. MCR signals DTR (bit 0) and RTS (bit 1) are used to control the
modem DSR and CTS inputs, respectively. The transmitter output (TX) and the receiver
input (RX) are disconnected from their associated interface pins, and instead are
connected together internally (see Figure 7). The CTS, DSR, DCD, and RI are
disconnected from their normal modem control input pins, and instead are connected
internally to DTR, RTS, OUT1 and OUT2. Loopback test data is entered into the Transmit
Holding Register via the user data bus interface, D0 to D7. The transmit UART serializes
the data and passes the serial data to the receive UART via the internal loopback
connection. The receive UART converts the serial data back into parallel data that is then
made available at the user data interface D0 to D7. The user optionally compares the
received data to the initial transmitted data for verifying error-free operation of the UART
TX/RX circuits.
Table 6.
Effect of DMA mode on state of RXRDY pin
Non-DMA mode
DMA mode
1 = FIFO empty
0-to-1 transition when FIFO empties
0 = at least 1 byte in FIFO
1-to-0 transition when FIFO reaches trigger level, or time-out occurs
Table 7.
Effect of DMA mode on state of TXRDY pin
Non-DMA mode
DMA mode
1 = at least 1 byte in FIFO
0-to-1 transition when FIFO becomes full
0 = FIFO empty
1-to-0 transition when FIFO has 1 empty space
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SC16C650BIA44-S 功能描述:UART 接口集成電路 16CB 2.5V-5V 1CH UART 32B 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
SC16C650BIA44-T 功能描述:UART 接口集成電路 16CB 2.5V-5V 1CH UART 32B 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
SC16C650BIB48 功能描述:UART 接口集成電路 16CB 2.5V-5V 1CH UART 32B 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
SC16C650BIB48,128 功能描述:UART 接口集成電路 16CB 2.5V-5V 1CH 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
SC16C650BIB48,151 功能描述:UART 接口集成電路 1CH. UART 32B 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
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