Position: Home  > All Categories> Integrated Circuits (ICs) > 74LV257

74LV257

Features: • Optimized for low voltage applications: 1.0 to 3.6 V• Accepts TTL input levels between VCC = 2.7 V and VCC = 3.6 V• Typical VOLP (output ground bounce) < 0.8 V at VCC = 3.3 V, Tamb = 25°C• Typical VOHV (output VOH undershoot) > 2 V at VCC = 3.3 V, Tamb = 2...

product image

74LV257 Picture
See larger image
SeekIC No. : 004251157 Detail

74LV257: Features: • Optimized for low voltage applications: 1.0 to 3.6 V• Accepts TTL input levels between VCC = 2.7 V and VCC = 3.6 V• Typical VOLP (output ground bounce) < 0.8 V at VC...

74LV257 Data Sheet

floor Price/Ceiling Price

Get Latest Price
Part Number:
74LV257
Supply Ability:
5000

Price Break

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

SeekIC Buyer Protection PLUS - newly updated for 2013!

  • Escrow Protection.
  • Guaranteed refunds.
  • Secure payments.
  • Learn more >>

Month Sales

268 Transactions

Rating

evaluate  (4.8 stars)

Upload time: 2024/12/21

add to my favourite

Payment Methods

All payment methods are secure and covered by SeekIC Buyer Protection PLUS.

Notice: When you place an order, your payment is made to SeekIC and not to your seller. SeekIC only pays the seller after confirming you have received your order. We will also never share your payment details with your seller.
Product Details

Description



Features:

• Optimized for low voltage applications: 1.0 to 3.6 V
• Accepts TTL input levels between VCC = 2.7 V and VCC = 3.6 V
• Typical VOLP (output ground bounce) < 0.8 V at VCC = 3.3 V, Tamb = 25°C
• Typical VOHV (output VOH undershoot) > 2 V at VCC = 3.3 V, Tamb = 25°C
• Non-inverting data path
• Output capability: bus driver
• ICC category: MSI


Pinout

Connection Diagram


Specifications

SYMBOL PARAMETER CONDITIONS RATING UNIT
VCC DC supply voltage   0.5 to +4.6 V
±IIK DC input diode current VI < 0.5 or VI > VCC + 0.5V 20 mA
±IOK DC output diode current VO < 0.5 or VO > VCC + 0.5V 50 mA
±IO DC output source or sink current
bus driver outputs		 0.5V < VO < VCC + 0.5V 35 mA
±IGND,
±ICC		 DC VCC or GND current for types with
bus driver outputs		   70 mA
Tstg Storage temperature range   65 to +150 °C
PTOT Power dissipation per package
plastic DIL
plastic mini-pack (SO)
plastic shrink mini-pack (SSOP and TSSOP)		 for temperature range: 40 to +125°C
above +70°C derate linearly with 12 mW/K
above +70°C derate linearly with 8 mW/K
above +60°C derate linearly with 5.5 mW/K		 750
500
400		 mW

NOTES:
1. Stresses beyond those listed may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
2. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.




Description

The 74LV257 is a low-voltage Si-gate CMOS device and is pin and function compatible with 74HC/HCT257.

The 74LV257 is a quad 2-input multiplexer with 3-state outputs, which select 4 bits of data from two sources and are controlled by a common data select input (S). The data inputs from source 0 (1l0 to 4l0) are selected when input S is LOW and the data inputs from source 1 (1l1 to 4l1) are selected when S in HIGH. Data appears at the outputs (1Y to 4Y) in true (non-inverting) from the selected inputs. The 74LV257 is the logic implementation of a 4-pole, 2-position switch, where the position of the switch is determined by the logic levels applied to S. The outputs are forced to a high impedance OFF-state when OE is HIGH.

The logic equations for the outputs are:

1Y = OE × (1l1 × S + 1l0 × S)
2Y = OE × (2l1 × S + 2l0 × S)
3Y = OE × (3l1 × S + 3l0 ×S)
4Y = OE × (4l1 × S + 4l0 × S)




Customers Who Bought This Item Also Bought

Margin,quality,low-cost products with low minimum orders. Secure your online payments with SeekIC Buyer Protection.
You may also be interested in :
View more