Datasheet Texas Instruments SN74LS688

Manufacturer	Texas Instruments
Series	SN74LS688

8-Bit Identity/Magnitude Comparators (P=Q) with Enable

Datasheets

PDF, 1.6 Mb, File published: Mar 1, 1988

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	SN74LS688DW	SN74LS688DWG4	SN74LS688DWR	SN74LS688N	SN74LS688NE4	SN74LS688NSR
Lifecycle Status	Active (Recommended for new designs)	Active (Recommended for new designs)	Active (Recommended for new designs)	Active (Recommended for new designs)	Active (Recommended for new designs)	Active (Recommended for new designs)
Manufacture's Sample Availability	No	No	No	No	No	No

	SN74LS688DW	SN74LS688DWG4	SN74LS688DWR	SN74LS688N	SN74LS688NE4	SN74LS688NSR
N	1	2	3	4	5	6
Pin	20	20	20	20	20	20
Package Type	DW	DW	DW	N	N	NS
Industry STD Term	SOIC	SOIC	SOIC	PDIP	PDIP	SOP
JEDEC Code	R-PDSO-G	R-PDSO-G	R-PDSO-G	R-PDIP-T	R-PDIP-T	R-PDSO-G
Package QTY	25	25	2000	20	20	2000
Carrier	TUBE	TUBE	LARGE T&R	TUBE	TUBE	LARGE T&R
Device Marking	LS688	LS688	LS688	SN74LS688N	SN74LS688N	74LS688
Width (mm)	7.5	7.5	7.5	6.35	6.35	5.3
Length (mm)	12.8	12.8	12.8	24.33	24.33	12.6
Thickness (mm)	2.35	2.35	2.35	4.57	4.57	1.95
Pitch (mm)	1.27	1.27	1.27	2.54	2.54	1.27
Max Height (mm)	2.65	2.65	2.65	5.08	5.08	2
Mechanical Data	Download	Download	Download	Download	Download	Download

Parameters / Models	SN74LS688DW	SN74LS688DWG4	SN74LS688DWR	SN74LS688N	SN74LS688NE4	SN74LS688NSR
Bits	8	8	8	8	8	8
F @ Nom Voltage(Max), Mhz	35	35	35	35	35	35
ICC @ Nom Voltage(Max), mA	68	68	68	68	68	68
Operating Temperature Range, C	0 to 70	0 to 70	0 to 70	0 to 70	0 to 70	0 to 70
Output Drive (IOL/IOH)(Max), mA	24/-0.4	24/-0.4	24/-0.4	24/-0.4	24/-0.4	24/-0.4
Package Group	SOIC	SOIC	SOIC	PDIP	PDIP	SO
Package Size: mm2:W x L, PKG	20SOIC: 132 mm2: 10.3 x 12.8(SOIC)	20SOIC: 132 mm2: 10.3 x 12.8(SOIC)	20SOIC: 132 mm2: 10.3 x 12.8(SOIC)	See datasheet (PDIP)	See datasheet (PDIP)	20SO: 98 mm2: 7.8 x 12.6(SO)
Rating	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog
Technology Family	LS	LS	LS	LS	LS	LS
VCC(Max), V	5.25	5.25	5.25	5.25	5.25	5.25
VCC(Min), V	4.85	4.85	4.85	4.85	4.85	4.85
Voltage(Nom), V	5	5	5	5	5	5
tpd @ Nom Voltage(Max), ns	23	23	23	23	23	23

	SN74LS688DW	SN74LS688DWG4	SN74LS688DWR	SN74LS688N	SN74LS688NE4	SN74LS688NSR
RoHS	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant
Pb Free	Yes	Yes

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Designing with the SN54/74LS123 (Rev. A)
PDF, 118 Kb, Revision: A, File published: 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

Series: SN74LS688 (6)