74LVX161284: Low Voltage IEEE 161284 Translating Transceiver

Datasheet: 74LVX161284-D.pdf
Rev. A (233kB)
Product Overview
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The LVX161284 contains eight bidirectional data buffers and eleven control/status buffers to implement a full IEEE 1284 compliant interface. The device supports the IEEE 1284 standard and is intended to be used in an Extended Capabilities Port mode (ECP). The pinout allows for easy connection from the Peripheral (A-side) to the Host (cable side). Outputs on the cable side can be configured to be either open drain or high drive (± 14 mA) and are connected to a separate power supply pin (VCC-cable) to allow these outputs to be driven by a higher supply voltage than the A-side. The pull-up and pull-down series termination resistance of these outputs on the cable side is optimized to drive an external cable. In addition, all inputs (except HLH) and outputs on the cable side contain internal pull-up resistors connected to the VCC-cable supply to provide proper termination and pull-ups for open drain mode. Outputs on the Peripheral side are standard low-drive CMOS outputs designed to interface with 3V logic. The DIR input controls data flow on the A1-A8/B1-B8 transceiver pins.
Features
 
  • Supports IEEE 1284 Level 1 and Level 2 signaling standards for bidirectional parallel communications between personal computers and printing peripherals
  • Translation capability allows outputs on the cable side to interface with 5V signals
  • All inputs have hysteresis to provide noise margin
  • B and Y output resistance optimized to drive external cable
  • B and Y outputs in high impedance mode during power down
  • Inputs and outputs on cable side have internal pull-up resistors
  • Flow-through pin configuration allows easy interface between the "Peripheral and Host"
  • Replaces the function of two (2) 74ACT1284 devices
Applications
  • TBA
Technical Documentation & Design Resources
Application Notes (2) Package Drawings (1)
Data Sheets (1)  
Availability & Samples
Specifications
Product
Status
Compliance
Description
Package
MSL
Container
Budgetary Price/Unit
Type
Case Outline
Type
Temperature
Type
Qty.
74LVX161284MTDX Active
Pb-free
Halide free
74LVX161284 TSSOP-48 948BQ 2 260 Tape and Reel 1000 $0.7
Market Leadtime (weeks) : Contact Factory

Product
Description
Pricing ($/Unit)
Compliance
Status
Channels
Output
VCC Min (V)
VCC Max (V)
tpd Max (ns)
IO Max (mA)
Package Type
74LVX161284MTDX  
 $0.7 
Pb
H
 Active   
17
3-State
3
3.6
40
84
TSSOP-48
Case Outlines
948BQ   
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