REV. 5.0.3 INT 33 30 O Interrupt Output (active high) This output becomes active whenever the " />
參數(shù)資料
型號(hào)： ST16C650AIQ48-F
廠商： Exar Corporation
文件頁(yè)數(shù)： 34/50頁(yè)
文件大?。?/td> 0K
描述： IC UART FIFO 32B 48TQFP
標(biāo)準(zhǔn)包裝： 250
特點(diǎn)： *
通道數(shù)： 1，UART
FIFO's： 32 字節(jié)
規(guī)程： 打印機(jī)，RS232，RS422，RS485
電源電壓： 2.9 V ~ 5.5 V
帶并行端口： 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： 48-TQFP
供應(yīng)商設(shè)備封裝： 48-TQFP（7x7）
包裝： 托盤
ST16C650A
4
2.90V TO 5.5V UART WITH 32-BYTE FIFO
REV. 5.0.3
INT
33
30
O
Interrupt Output (active high)
This output becomes active whenever the transmitter, receiver, line and/or modem
status register has an active condition. See interrupt section for more details. This
interrupt output may be set to normal active high or active high open source (see
MCR bit-5) to provide wire-OR capability by connecting a 1k to 10k ohms resistor
between this pin and ground.
AS#
28
24
I
Address Strobe input (active low)
In the Intel bus mode, the leading-edge transition of AS# latches the chip selects
(CS0, CS1, CS2#) and the address lines A0, A1 and A2. This input is used when
the address lines are not stable for the duration of a read or write operation. In
devices with top mark date code of "I2 YYWW" and newer, the address bus is
latched even if this input is not used. These devices feature a ’0 ns’ address hold
time. See “AC Electrical Characteristics” . If not required, this input can be perma-
nently tied to GND.
TXRDY#
27
23
O
UART Transmitter Ready (active low)
The output provides the TX FIFO/THR status. See
Table 2. If it is not used,
leave it unconnected.
RXRDY#
32
29
O
UART Receiver Ready (active low)
This output provides the RX FIFO/RHR status for receive channel A. See
Table 2. If it is not used, leave it unconnected.
PC Mode Interface Signals. Connect SEL pin to GND to select PC Mode.
A3
A4
A5
A6
A7
A8
A9
25
12
14
15
16
21
1
20
6
9
10
11
17
37
I
PC mode additional Address Lines
In the PC mode, these are the additional address lines from the host address bus.
They are inputs to the on-board chip select decode function for COM 1-4 and LPT
ports. See
Table 1 for details. The pins A4 and A9 have internal 100k pull-up
resistors.
AEN#
28
24
I
Address Enable input (active low)
When AEN# transition to logic 0, it decodes and validates COM 1-4 ports address
per S1, S2 and S3 inputs.
S1
S2
S3
23
10
35
21
5
31
I
Select 1 to 3
These are the standard PC COM 1-4 ports and IRQ selection inputs. See
and
Table 3 for details. The S1 pin has an internal 100k pull-up resistor.
IRQA
IRQB
IRQC
33
32
27
30
29
23
O
Interrupt Request A, B and C Outputs (active high, tri-state)
These are the interrupt outputs associated with COM 1-4 to be connected to the
host data bus. See interrupt section for details. The Interrupt Requests A, B or C
functions as IRQx to the PC bus. IRQx is enabled by setting MCR bit-3 to logic 1
and the desired interrupt(s) in the interrupt enable register (IER).
LPT1#
17
12
O
Line Printer Port-1 Decode Logic Output (active low)
This pin functions as the PC standard LPT-1 printer port address decode logic out-
put, see
Table 1. The baud rate generator clock output, BAUDOUT#, is internally
connected to the RCLK input in the PC mode.
NAME
44-
PLCC
PIN #
48-
TQFP
PIN #
TYPE
DESCRIPTION
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ST16C650AIQ48TR 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述:
ST16C650AIQ48TR-F 功能描述:UART 接口集成電路 UART W/32BYTEFIFO 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
ST16C650CJ44 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述:
ST16C650CJ44-F 功能描述:UART 接口集成電路 UART W/32 BYTE 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
ST16C650CP40 功能描述:UART 接口集成電路 UART W/32 BYTE 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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