Datasheet > IMP16C552-CJ68

IMP16C552-CJ68

更新时间： 2024-02-09 07:58:30

品牌	Logo	应用领域
IMP		先进先出芯片
页数	文件大小	规格书
34页	752K
描述
Dual Universal Asynchronous Receiver/Transmitter (UART) with 16-BYTE FIFO & Parallel Printer Port

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IMP16C552-CJ68 数据手册

IMP16C552

Mnemonic

INT0.INT1

type

Pin#

description

OUT 45.50

Serial channel interrupts Tri-state @ output (enable by bits of MCR of

each serial channel )goes high whenever an interrupt is pending for the

associated serial channel These pins are tri-stated whenever associated

channel is in loopback mode. These pins are reset during a Master

Reset.

SOUT0

SOUT1

OUT 26.10

Serial Output pins: Composite serial data output to the communications

link (peripheral MODEM or data set )the SOUTO S0 SOUT1 signal is

set to the marking(logic 1)state upon a Master Reset operation

D0-D7

1/0

14-21

46-53

Data Bus D0—D7: Tri-State® bus provides bi-directional

communications between the UART and the CPU Data control words

and status information are transferred via the D0-D7 Data bus

PD7-PD0

STB*+

Parallel Port Data Bus: Bi-directional data port which provides parallel

input and output to the system. The eight lines are hold in a

high-impedance state when LPTOE is high

Line printer Strobe: Output line when active (low) provides the line

printer with a signal to latch the data currently on the parallel port data

bus

AFD*+

INIT*+

SLIN*+

INT2

1/0

Line printer Auto Teed: Output line when active (low) provides signal for

the line printer to auto feed continuous form paper

Line Printer Initiallze : Output line to printer when active (low) signal

the line printer to begin an initialization routine

Line printer Select :Output line when active (low)selects the printer

Parallel Port Interrupt :Tri-State® output (enable by bit 4 of the Printer

Control Register ) goes active on the positive transition of ACK*. This

interrupt is reset low upon a reset operation or after pending interrupts

are serviced

ERROR*

Line Printer Error :Input line from the line printer informs the parallel port

of an error by inputting an active low signal Set low by the printer upon a

deselect condition PE or other error condition

SLCT

BUSY

Line Printer Select :input from the line printer that goes high when the

line printer has been selected

Line Printer Busy :input from the line printer that goes high when the line

printer has an operation in progress

Paper Empty :input form the line printer goes high when the printer is

out of paper

ACK

Printer Acknowledge :input form line printer that goes low to confirm the

data transfer from the MS16C552 to the printer was successful. This

input control INT2 pin directly.

Line Printer Output Enable: When low this input signal enables the

parallel port data bus as output. When high the parallel port data bus

pins are hold in a high impedance state. For normal line printer

operation, this line may be permanently grounded.

LPTOE*

408-432-9100/ www.impweb.com

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与IMP16C552-CJ68相关器件

型号	品牌	获取价格	描述	数据表
IMP16C552-IJ68	IMP	获取价格	Dual Universal Asynchronous Receiver/Transmitter (UART) with 16-BYTE FIFO & Parallel Print
IMP16C554	IMP	获取价格	Quad Universal Asynchronous Receiver/Transmitter (UART) with FIFOs
IMP16C554-CJ68	IMP	获取价格	Quad Universal Asynchronous Receiver/Transmitter (UART) with FIFOs
IMP16C554-LJ68	IMP	获取价格	Quad Universal Asynchronous Receiver/Transmitter (UART) with FIFOs
IMP1810	IMP	获取价格	Low Power, 5V, P Reset
IMP1810	A1PROS	获取价格	Low Power,, 5V - Ressett- Acttiive LOW,, Open--Draiin Outtputt
IMP1811	A1PROS	获取价格	Low Power,, 5V - Ressett- Acttiive LOW,, Open--Draiin Outtputt
IMP1811	IMP	获取价格	Low Power, 5V, P Reset
IMP1812	IMP	获取价格	Low Power, 5V, P Reset
IMP1812	A1PROS	获取价格	Low Power,, 5V - Ressett- Acttiive LOW,, Open--Draiin Outtputt

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