參數(shù)資料
型號(hào)： ST16C552CJ68TR-F
廠商： Exar Corporation
文件頁數(shù)： 7/39頁
文件大?。?/td> 0K
描述： IC UART FIFO 16B DUAL 68PLCC
標(biāo)準(zhǔn)包裝： 250
特點(diǎn)： *
通道數(shù)： 2，DUART
FIFO's： 16 字節(jié)
規(guī)程： 打印機(jī)
電源電壓： 2.97 V ~ 5.5 V
帶并行端口： 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： 68-LCC（J 形引線）
供應(yīng)商設(shè)備封裝： 68-PLCC
包裝： 帶卷 (TR)
其它名稱： ST16C552CJ68TR-F-ND
15
ST16C552/552A
Rev. 3.40
input and/or output functions. The signals have internal
pull-up resistors and can be wire-or’d. Normally, -
STROBE is used to strobe PD0-PD7 bus data into a
printer input buffer. -SLCTIN normally selects the printer
while AutoFDXT signals the printer to auto-linefeed.
Other signals provide similar printer functions but are
not bi-directional. The printer functions for these signals
are described in table 1, Symbol Description.
The interface provides a mode steering signal called
BIDEN. BIDEN controls the bi-directional 8-bit data bus
(PD0-PD7) direction, input or output. When BIDEN is a
logic 1 a single control bit (D5) in the control register
sets the input or output mode. Setting BIDEN to a logic
0 however sets an IBM interface compatible mode. In
this mode the bus direction (input/output) is set by eight
data bits in the IOSEL register. An AA (Hex) pattern
sets the input mode while a 55 (hex) pattern sets the
output mode. I/O direction is depicted in Table 6 below.
Printer Port
The 552/552A contains a general purpose 8-bit parallel
interface port that is designed to directly interface with
a CENTRONICS Printer. A number of the control/
interrupt signals and the 8-bit data bus have been
designed as bi-directional data buses. This allows the
interface to function with other device parallel data bus
applications. Signal -ACK is used to generate an -INTP
interface interrupt that would normally be connected to
the user CPU. -INTP can be made to follow the -ACK
signal, normal mode (see Figure 7) or it can be config-
ured for the latch mode. In the latch mode the interrupt
is not cleared until printer status register (SR) is read.
Another signal (INIT) can be made to function as an
outgoing or incoming interrupt, or combined with other
interrupts to provide a common wire-or interrupt output.
Interface signals -STROBE, -AutoFDXT, and -SLCTIN
are bi-directional and can be used as combinations of
Table 6, PD0-PD7 I/O DIRECTION MODE SELECTION
PORT DIRECTION
BIDEN
CONTROL REGISTER (D5)
I/O SELECT REGISTER
Input mode
0
X (Note 4)
AA Hex
Output mode
0
X (Note 4)
55 Hex
Output mode
1
0
X (Note 4)
Input mode
1
X (Note 4)
Note: 4 = don’t care
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ST16C552IJ68 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述:
ST16C552IJ68-F 功能描述:UART 接口集成電路 DUAL UART W/16BYTE FIFO&PARALELPRNTPORT 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
ST16C552IJ68TR-F 功能描述:UART 接口集成電路 DUAL UART W/16BYTE FIFO&PARALELPRNTPORT 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
ST16C554 制造商:EXAR 制造商全稱:EXAR 功能描述:2.97V TO 5.5V QUAD UART WITH 16-BYTE FIFO
ST16C554CJ-0A-EVB 功能描述:界面開發(fā)工具 Supports C554D 68 ld PLCC, ISA Interface RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類型:RS-485 工具用于評(píng)估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V
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