參數(shù)資料
型號: 74LCXP16245MEA
廠商: FAIRCHILD SEMICONDUCTOR CORP
元件分類: 通用總線功能
英文描述: Octal Bus Transceivers With 3-State Outputs 20-PDIP -40 to 85
中文描述: LVC/LCX/Z SERIES, DUAL 8-BIT TRANSCEIVER, TRUE OUTPUT, PDSO48
封裝: 0.300 INCH, MO-118, SSOP-48
文件頁數(shù): 2/8頁
文件大?。?/td> 72K
代理商: 74LCXP16245MEA
www.fairchildsemi.com
2
7
Connection Diagram
Truth Tables
H
=
HIGH Voltage Level
L
=
LOW Voltage Level
X
=
Immaterial
Z
=
High Impedance
Note 2:
A and B port inputs are still active.
Functional Descriptions
The LCXP16245 contains sixteen non-inverting bidirec-
tional buffers with 3-STATE outputs. the device is byte con-
trolled. Each byte has separate control inputs which can be
shorted together for full 16-bit operation. The T/R inputs
determine the direction of data flow through the device.
The OE inputs disable both the A and B ports by placing
them in a high impedance state. The pulldown resistor
(30K
normal) to GND is active only when the outputs are
3-STATED (OE
=
HIGH). When the outputs become active
(OE
=
LOW) the resistor is removed from the circuit.
Logic Diagram
Inputs
Outputs
OE
1
T/R
1
L
L
Bus B
0
–B
7
Data to Bus A
0
–A
7
Bus A
0
–A
7
Data to Bus B
0
–B
7
HIGH Z State on A
0
–A
7
, B
0
–B
7
(Note 2)
L
H
H
X
Inputs
Outputs
OE
2
T/R
2
L
L
Bus B
8
–B
15
Data to Bus A
8
–A
15
Bus A
8
–A
15
Data to Bus B
8
–B
15
HIGH Z State on A
8
–A
15
, B
8
–B
15
(Note 2)
L
H
H
X
相關PDF資料
PDF描述
74LCXP16245MTD Low Voltage 16-Bit Bidirectional Transceiver with 5V Tolerant Inputs/Outputs and Pull-Down Resistors
74LCXR162245 Octal Bus Transceivers With 3-State Outputs 20-PDIP -40 to 85
74LCXR162245MTD Octal Bus Transceivers With 3-State Outputs 20-SO -40 to 85
74LCXR162245MEA Octal Bus Transceivers With 3-State Outputs 20-SO -40 to 85
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