TC74VHC244F(EL,K,F by Toshiba | Buffer and Line Driver | Avnet ASIA
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TC74VHC244F(EL,K,F

Toshiba

Buffer/Line Driver 8-CH Non-Inverting 3-ST CMOS 20-Pin SOP

Manufacturer Part #: TC74VHC244F(EL,K,F

Alternate Part #: TC74VHC244F(EL,K,F


legend RoHS Compliant

Descriptions

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Subs/Alternatives

Information

The TC74VHC240 and 244 are advanced high speed CMOS OCTAL BUS BUFFERs fabricated with silicon gate C2MOS technology.

They achieve the high speed operation similar to equivalent Bipolar Schottky TTL while maintaining the CMOS low power dissipation.

The 74VHC240 is an inverting 3-state buffer having two active-low output enables. The TC74VHC244 is a non-inverting 3-state buffer, and has two active-low output enables. These devices are designed to be used with 3-state memory address drivers, etc.

An input protection circuit ensures that 0 to 5.5 V can be applied to the input pins without regard to the supply voltage. This device can be used to interface 5 V to 3 V systems and two supply systems such as battery back up. This circuit prevents device destruction due to mismatched supply and input voltages.

Key Features

  • High speed: tpd = 3.9 ns (typ.) at VCC = 5 V
  • Low power dissipation: ICC = 4 μA (max) at Ta = 25°C
  • High noise immunity: VNIH = VNIL = 28% VCC (min)
  • Power down protection is provided on all inputs.
  • Balanced propagation delays: tpLH ∼− tpHL
  • Wide operating voltage range: VCC (opr) = 2 to 5.5 V
  • Low noise: VOLP = 0.8 V (max)
  • Pin and function compatible with 74ALS240/244

Technical Attributes

Description
Value
Find similar Parts
Pin Count
20
Operating Temperature
-40 to 85 °C
Number of Outputs per Chip
8
Supplier Package
SOP
Logic Function
Buffer/Line Driver
Product Dimensions
13.3(Max) x 5.3 x 1.5
Maximum High Level Output Current
-8 mA
Maximum Quiescent Current
4 uA
Propagation Delay Test Condition
50 pF
Number of Inputs per Chip
8
Output Type
3-State
Maximum Low Level Output Current
8 mA
Typical Operating Supply Voltage
2.5|3.3|5 V
Number of Elements per Chip
2
Lead Finish
Gold Over Nickel Palladium
Mounting
Surface Mount
Input Signal Type
Single-Ended
Fabrication Technology
CMOS
Bus Hold
No
Maximum Operating Supply Voltage
5.5 V
Minimum Operating Supply Voltage
2 V
Maximum Propagation Delay Time @ Maximum CL
11.9@3.3V|7.5@5V ns
Number of Channels per Chip
8
Polarity
Non-Inverting
Screening Level
Industrial
Number of Output Enables per Chip
2 Low

ECCN / UNSPSC

Description
Value
ECCN:
EAR99
SCHEDULE B:
8542.39.00.00"
HTSN:
8542.39.00.01"
UNSPSC:
32101600
UNSPSC VERSION:
V15.1101
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