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M54HC257

Features: `HIGH SPEED tPD = 10 ns (TYP.) AT VCC = 5 V `LOWPOWER DISSIPATION ICC = 4 A (MAX.) AT TA = 25 ° C `OUTPUT DRIVE CAPABILITY10 LSTTL LOADS `SYMMETRICAL OUTPUT IMPEDANCE IOL = |IOH |= 4 mA (MIN.)`HIGH NOISE IMMUNITY VNIH = VNIL = 28 % VCC (MIN.) `WIDE OPERATING VOLTAGE RANGE VCC (OPR) = 2 V...

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SeekIC No. : 004405861 Detail

M54HC257: Features: `HIGH SPEED tPD = 10 ns (TYP.) AT VCC = 5 V `LOWPOWER DISSIPATION ICC = 4 A (MAX.) AT TA = 25 ° C `OUTPUT DRIVE CAPABILITY10 LSTTL LOADS `SYMMETRICAL OUTPUT IMPEDANCE IOL = |IOH |= 4 mA (M...

M54HC257 Data Sheet

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Part Number:
M54HC257
Supply Ability:
5000

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  • 1~5000
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  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

`HIGH SPEED tPD = 10 ns (TYP.) AT VCC = 5 V
`LOWPOWER DISSIPATION ICC = 4 A (MAX.) AT TA = 25 ° C
`OUTPUT DRIVE CAPABILITY   10 LSTTL LOADS
`SYMMETRICAL OUTPUT IMPEDANCE IOL = |IOH |= 4 mA (MIN.)
`HIGH NOISE IMMUNITY VNIH = VNIL = 28 % VCC (MIN.)
`WIDE OPERATING VOLTAGE RANGE VCC (OPR) = 2 V TO 6 V
` PIN AND FUNCTION COMPATIBLE WITH 54/74LS257/258


Pinout

Connection Diagram


Specifications

Symbol
Parameter
Value
Unit
VCC
Supply Voltage
-0.5 to +7
V
VI
DC Input Voltage
-0.5 to VCC + 0.5
V
VO
DC Output Voltage
-0.5 to VCC + 0.5
V
IIK
DC Input Diode Current
± 20
mA
IOK
DC Output Diode Current
± 20
mA
IO
DC Output Source Sink Current Per Output Pin
± 35
mA
ICC or IGND
DC VCC or Ground Current
± 70
mA
PD
Power Dissipation
500 (*)
mW
Tstg
Storage Temperature
-65 to +150
°C
TL
Lead Temperature (10 sec)
300
°C
AbsoluteMaximumRatings are those values beyond whichdamage tothe device may occur. Functional operation under these condition isnotimplied.(*) 500 mW:  65 °C derate to 300mWby 10mW/°C: 65 °C to85°C


Description

The M54/74HC257 and the M54/74HC258 are high speed CMOS MULTIPLEXERs fabricated with silicon gate C2MOS technology.

They have the same high speed performance of LSTTL combined with true CMOS low power consumption.

These IC's are composed of an independent 2- channelmultiplexer with commonSELECT and ENABLE INPUT.

The M54/74HC258 is an inverting multiplexer while the M54/74HC257 is a non-inverting multiplexer. When theENABLE INPUTis held "High", outputs of both IC's become high-impedance state. If SELECT INPUT is held "Low", "A" data is selected, when SELECT INPUT is high "H", "B" data is chosen.

All inputs are equipped with protection circuits against static discharge and transient excess voltage.




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