74LV123

Features: • Optimized for Low Voltage applications: 1.0 to 5.5V• Accepts TTL input levels between VCC = 2.7V and VCC = 3.6V• Typical VOLP (output ground bounce) 0.8V @ VCC = 3.3V,Tamb = 25• Typical VOHV (output VOH undershoot) > 2V @ VCC = 3.3V,Tamb = 25• DC triggere...

product image

74LV123 Picture
SeekIC No. : 004251128 Detail

74LV123: Features: • Optimized for Low Voltage applications: 1.0 to 5.5V• Accepts TTL input levels between VCC = 2.7V and VCC = 3.6V• Typical VOLP (output ground bounce) 0.8V @ VCC = 3.3V,...

floor Price/Ceiling Price

Part Number:
74LV123
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: 2024/3/27

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 5.5V
• Accepts TTL input levels between VCC = 2.7V and VCC = 3.6V
• Typical VOLP (output ground bounce) < 0.8V @ VCC = 3.3V,Tamb = 25
• Typical VOHV (output VOH undershoot) > 2V @ VCC = 3.3V,Tamb = 25
• DC triggered from active HIGH or active LOW inputs
• Retriggerable for very long pulses up to 100% duty factor
• Direct reset terminates output pulses
• Schmitt-trigger action on all inputs except for the reset input
• Output capability: standard (except for nREXT/CEXT)
• ICC category: MSI



Pinout

  Connection Diagram


Specifications

In accordance with the Absolute Maximum Rating System (IEC 134).Voltages are referenced to GND
(ground = 0V).
SYMBOL PARAMETER CONDITIONS RATING UNIT
VCC DC supply voltage   0.5 to +7.0 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
standard outputs
0.5V < VO < VCC + 0.5V 25 mA
±IGND,
±ICC
DC VCC or GND current for types with
standard outputs
  50 mA
Tstg Storage temperature range   65 to +150
PTOT Power dissipation per package
plastic DIL
plastic mini-pack (SO)
plastic shrink mini-pack (SSOP   and TSSOP)
for temperature range: 40 to +125
above +70 derate linearly with 12 mW/K
above +70 derate linearly with 8 mW/K
above +60 derate linearly with 5.5 mW/K

750

500

400
mW



Description

The 74LV123 is a low-voltage Si-gate CMOS device and is pin and function compatible with the 74HC/HCT123.

The 74LV123 is a dual retriggerable monostable multivibrator with output pulse width control by three methods. The basic pulse time is programmed by selection of an external resistor (REXT) and capacitor (CEXT). They are normally connected as shown in Figure 1. Once triggered, the basic output pulse width may be extended by retriggering the gated active LOW-going edge input (nA) or the active HIGH-going edge input (nB). By repeating this process, the output pulse period (nQ = HIGH, nQ = LOW) of the 74LV123 can be made as long as desired. Alternatively, an output delay can be terminated at any time by a LOW-going edge on input nRD, which also inhibits the triggering. Figures 1 and 2 illustrate pulse control by retriggering and early reset. The basic output pulse width is essentially determined by the values of the external timing components REXT and CEXT. For pulse width when CEXT <10000pF,see Figure 5. When CEXT  > 10,000pF, the typical output pulse width is defined as: tW = 0.45x REXT x CEXT (typ.), where tW = pulse width in ns; REXT = external resistor in KW; and CEXT = external capacitor in pF. Schmitt-trigger action in the nA and nB inputs makes the circuit highly tolerant of slower input rise and fall times.




Customers Who Bought This Item Also Bought

Margin,quality,low-cost products with low minimum orders. Secure your online payments with SeekIC Buyer Protection.
Undefined Category
Soldering, Desoldering, Rework Products
Power Supplies - Board Mount
Tapes, Adhesives
803
Computers, Office - Components, Accessories
Boxes, Enclosures, Racks
View more