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74LVC1284

Features: •Asynchronous operation•4-Bit transceivers•3 additional buffer/driver lines•TTL compatible inputs•ESD protection exceeds 1000V per MIL STD 883 Method 3015 and 200V per Machine Model•Input Hysteresis•Low Noise Operation•Center Pin VCC& G...

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SeekIC No. : 004251210 Detail

74LVC1284: Features: •Asynchronous operation•4-Bit transceivers•3 additional buffer/driver lines•TTL compatible inputs•ESD protection exceeds 1000V per MIL STD 883 Method 3015 and...

74LVC1284 Data Sheet

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Part Number:
74LVC1284
Supply Ability:
5000

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  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/12/21

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Product Details

Description



Features:

•Asynchronous operation
•4-Bit transceivers
•3 additional buffer/driver lines
•TTL compatible inputs
•ESD protection exceeds 1000V per MIL STD 883 Method 3015 and 200V per Machine Model
•Input Hysteresis
•Low Noise Operation
•Center Pin VCC & GND
•IEEE 1284 Compliant Level 1 & 2
•Overvoltage Protection on B side


Pinout

Connection Diagram


Specifications

SYMBOL PARAMETER CONDITIONS RATING UNIT
  ESD Immunity, per Mil Std 883C method 3015   ±2 KV
VCC DC supply voltage   0.5 to +4.6 V
IIK DC input diode current V1 < 0 ±20 mA
IOK DC output diode current VO < 0 ±50 mA
VIN DC input voltage3   0.5 to +5.5 V
VOUT B/YDC DC output voltage on B/Y side3   0.5 to +5.5 V
VOUT B/Y(tr) Transient output voltage on B/Y side4 40ns transient 2 to +7 V
VOUT A side DC output voltage on A side   0.5 to VCC+0.5 V
IO DC output current Outputs in High or Low state ±50 mA
Tstg Storage temperature range   60 to 150 °C
ICC/IGND Continuous current through VCC or GND   ±200 mA



Description

The 74LVC1284 parallel interface chip is designed to provide an asynchronous, 4-bit, bi-directional, parallel printer interface for personal computers. Three additional lines are included to provide handshaking signals between the host and the peripheral. The part is designed to match IEEE 1284 standard.

The 4 transceiver pins (A/B 1-4) of the 74LVC1284 allow data transmission from the A bus to the B bus, or from the B bus to the A bus, depending on the state of the direction pin DIR.

The B bus and the Y5-Y7 lines of the 74LVC1284 have totem pole or open drain style outputs depending on the state of the high drive enable pin HD. The A bus only has totem pole style outputs. All inputs are TTL compatible with at least 300mV of input hysteresis at VCC = 3.3V.




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