參數(shù)資料
型號(hào)： ST16C650
廠商： Exar Corporation
英文描述： Voltage Regulator IC; Output Current Max:350mA; Supply Voltage Max:6V; Package/Case:8-TSSOP; Output Current:350mA; Output Voltage:3.3V; Current Rating:30.05A; Leaded Process Compatible:Yes; Output Voltage Max:3.3V RoHS Compliant: Yes
中文描述： 2.90V至5.5V UART的32字節(jié)FIFO
文件頁(yè)數(shù)： 11/53頁(yè)
文件大小： 666K
代理商： ST16C650
á
REV. 5.0.0
ST16C650A
2.90V TO 5.5V UART WITH 32-BYTE FIFO
11
2.2
The 650A can acccept up to 5V inputs even when operating at 3.3V or 2.5V. But note that if the 650A is
operating at 2.5V, its V
OH
may not be high enough to meet the requirements of the V
IH
of a CPU or a serial
transceiver that is operating at 5V. Caution: XTAL1 is not 5 volt tolerant.
2.3
Device Reset
The RESET input resets the internal registers and the serial interface outputs to their default state (see
Figure 13
). An active high pulse of longer than 40 ns duration will be required to activate the reset function in
the device.
2.4
Device Identification and Revision
The ST16C650A provides a Device Identification code and a Device Revision code to distinguish the part from
other devices and revisions. To read the identification code from the part, it is required to set the baud rate
generator registers DLL and DLM both to 0x00. Now reading the content of the DLM will provide 0x04 for the
ST16C650A and reading the content of DLL will provide the revision of the part; for example, a reading of 0x01
means revision A.
2.5
DMA Mode
The device does not support direct memory access. The DMA Mode (a legacy term) in this document does not
mean “direct memory access” but refers to data block transfer operation. The DMA mode affects the state of
the RXRDY# and TXRDY# output pins. The transmit and receive FIFO trigger levels provide additional
flexibility to the user for block mode operation. The LSR bits 5-6 provide an indication when the transmitter is
empty or has an empty location(s) for more data. The user can optionally operate the transmit and receive
FIFO in the DMA mode (FCR bit-3=1). When the transmit and receive FIFO are enabled and the DMA mode is
disabled (FCR bit-3 = 0), the 650A is placed in single-character mode for data transmit or receive operation.
When DMA mode is enabled (FCR bit-3 = 1), the user takes advantage of block mode operation by loading or
unloading the FIFO in a block sequence determined by the programmed trigger level. In this mode, the 650A
sets the TXRDY# pin when the transmit FIFO becomes full, and sets the RXRDY# pin when the receive FIFO
becomes empty. The following table shows their behavior. Also see
Figures 24
through
29
.
5-Volt Tolerant Inputs
T
ABLE
2: TXRDY#
AND
RXRDY# O
UTPUTS
IN
FIFO
AND
DMA M
ODE
P
INS
FCR
BIT
-0=0
(FIFO D
ISABLED
)
FCR B
IT
-0=1 (FIFO E
NABLED
)
FCR B
IT
-3 = 0
(DMA M
ODE
D
ISABLED
)
FCR B
IT
-3 = 1
(DMA M
ODE
E
NABLED
)
RXRDY#
0 = 1 byte.
1 = no data.
0 = at least 1 byte in FIFO
1 = FIFO empty.
1 to 0 transition when FIFO reaches the trigger
level, or timeout occurs.
0 to 1 transition when FIFO empties.
TXRDY#
0 = THR empty.
1 = byte in THR.
0 = FIFO empty.
1 = at least 1 byte in FIFO.
0 = FIFO has at least 1 empty location.
1 = FIFO is full.
相關(guān)PDF資料
PDF描述
ST26C32CF16 QUAD RS-422, RS-423 CMOS Differential Line Receiver
ST26C32 MOSFET; Transistor Polarity:N Channel; Drain Source Voltage, Vds:20V; Continuous Drain Current, Id:13.4A; On-Resistance, Rds(on):0.0065ohm; Rds(on) Test Voltage, Vgs:4.5V; Package/Case:8-SOIC; Leaded Process Compatible:No
ST26C32CP16 QUAD RS-422, RS-423 CMOS Differential Line Receiver
ST26C32IF16 QUAD RS-422, RS-423 CMOS Differential Line Receiver
ST26C32IP16 QUAD RS-422, RS-423 CMOS Differential Line Receiver
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ST16C650A 制造商:EXAR 制造商全稱:EXAR 功能描述:2.90V TO 5.5V UART WITH 32-BYTE FIFO
ST16C650A_0508 制造商:EXAR 制造商全稱:EXAR 功能描述:2.90V TO 5.5V UART WITH 32-BYTE FIFO
ST16C650A_09 制造商:EXAR 制造商全稱:EXAR 功能描述:2.90V TO 5.5V UART WITH 32-BYTE FIFO
ST16C650ACJ44 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述:
ST16C650ACJ44-F 功能描述:UART 接口集成電路 UART W/32BYTE 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
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*