Datasheet Texas Instruments SN74LS646 — 数据表

制造商	Texas Instruments
系列	SN74LS646

八路总线收发器和寄存器

数据表

PDF, 904 Kb, 修订版: A, 档案已发布: Apr 22, 2004

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	SN74LS646DW	SN74LS646NT3
Lifecycle Status	Active (Recommended for new designs)	Obsolete (Manufacturer has discontinued the production of the device)
Manufacture's Sample Availability	No	No

Parameters / Models	SN74LS646DW	SN74LS646NT3
Approx. Price (US$)		3.41 \| 1ku
Bits	8
Bits(#)		8
F @ Nom Voltage(Max), Mhz	35
F @ Nom Voltage(Max)(Mhz)		35
ICC @ Nom Voltage(Max), mA	0.165
ICC @ Nom Voltage(Max)(mA)		0.165
Input Type		TTL
Operating Temperature Range, C	0 to 70
Operating Temperature Range(C)		0 to 70
Output Drive (IOL/IOH)(Max), mA	-15/24
Output Drive (IOL/IOH)(Max)(mA)		-15/24
Output Type		TTL
Package Group	SOIC	SOIC
Package Size: mm2:W x L, PKG	24SOIC: 160 mm2: 10.3 x 15.5(SOIC)
Package Size: mm2:W x L (PKG)		See datasheet (PDIP)
Rating	Catalog	Catalog
Schmitt Trigger	No	No
Technology Family	LS	LS
VCC(Max), V	5.25
VCC(Max)(V)		5.25
VCC(Min), V	4.75
VCC(Min)(V)		4.75
Voltage(Nom), V	5
Voltage(Nom)(V)		5
tpd @ Nom Voltage(Max), ns	20
tpd @ Nom Voltage(Max)(ns)		20

	SN74LS646DW	SN74LS646NT3
RoHS	Compliant	Not Compliant
Pb Free	No

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Designing with the SN54/74LS123 (Rev. A)
PDF, 118 Kb, 修订版: A, 档案已发布: 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

系列: SN74LS646 (2)