Datasheet Texas Instruments SN74LS257BN3 — Datenblatt

Vierfache 2-Zeilen- bis 1-Zeilen-Datenauswahl / Multiplexer mit 3-Zustands-Ausgängen 16-PDIP 0 bis 70

Datenblätter

PDF, 989 Kb, Datei veröffentlicht: Mar 1, 1988

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Lifecycle Status	Obsolete (Manufacturer has discontinued the production of the device)
Manufacture's Sample Availability	No

Approx. Price (US$)	0.28 \| 1ku
Bits(#)	2
Channels(#)	4
Configuration	2:1
F @ Nom Voltage(Max)(Mhz)	35
Function	Encoder/Multiplexer
ICC @ Nom Voltage(Max)(mA)	19
Input Type	TTL
Operating Temperature Range(C)	0 to 70
Output Drive (IOL/IOH)(Max)(mA)	24/-2.6
Output Type	TTL
Package Group	PDIP
Package Size: mm2:W x L (PKG)	See datasheet (PDIP)
Rating	Catalog
Schmitt Trigger	No
Technology Family	LS
Type	3-State Output
VCC(Max)(V)	5.25
VCC(Min)(V)	4.75
Voltage(Nom)(V)	5
tpd @ Nom Voltage(Max)(ns)	21

RoHS	Not Compliant
Pb Free	No

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Designing with the SN54/74LS123 (Rev. A)
PDF, 118 Kb, Revision: A, Datei veröffentlicht: Mar 1, 1997
The Texas Instruments (TI) SN54/74LS123 dual retriggerable monostable multivibrator is a one-shot device capable of verylong output pulses and up to 100% duty cycle. The ?LS123 also features dc triggering from gated low-level active A andhigh-level active B inputs and provides a clear input that terminates the output pulse of any predetermined time independentof timing components R ext and

Serie: SN74LS257B (8)