Datasheet Texas Instruments SN54LS21

Manufacturer	Texas Instruments
Series	SN54LS21

Dual 4-Input Positive-AND Gates

Datasheets

PDF, 942 Kb, File published: Mar 1, 1988

Extract from the document

	JM38510/31003B2A	JM38510/31003BCA	JM38510/31003BDA	M38510/31003B2A	M38510/31003BCA	M38510/31003BDA	SN54LS21J	SNJ54LS21FK	SNJ54LS21J	SNJ54LS21W
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)	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	No	No	No	No

	JM38510/31003B2A	JM38510/31003BCA	JM38510/31003BDA	M38510/31003B2A	M38510/31003BCA	M38510/31003BDA	SN54LS21J	SNJ54LS21FK	SNJ54LS21J	SNJ54LS21W
N	1	2	3	4	5	6	7	8	9	10
Pin	20	14	14	20	14	14	14	20	14	14
Package Type	FK	J	W	FK	J	W	J	FK	J	W
Industry STD Term	LCCC	CDIP	CFP	LCCC	CDIP	CFP	CDIP	LCCC	CDIP	CFP
JEDEC Code	S-CQCC-N	R-GDIP-T	R-GDFP-F	S-CQCC-N	R-GDIP-T	R-GDFP-F	R-GDIP-T	S-CQCC-N	R-GDIP-T	R-GDFP-F
Package QTY	1	1	1	1	1	1	1	1	1	1
Carrier	TUBE	TUBE	TUBE	TUBE	TUBE	TUBE	TUBE	TUBE	TUBE	TUBE
Device Marking	31003B2A	31003BCA	31003BDA	JM38510/	JM38510/	JM38510/	SN54LS21J	21FK	SNJ54LS21J	SNJ54LS21W
Width (mm)	8.89	6.67	5.97	8.89	6.67	5.97	6.67	8.89	6.67	5.97
Length (mm)	8.89	19.56	9.21	8.89	19.56	9.21	19.56	8.89	19.56	9.21
Thickness (mm)	1.83	4.57	1.59	1.83	4.57	1.59	4.57	1.83	4.57	1.59
Pitch (mm)	1.27	2.54	1.27	1.27	2.54	1.27	2.54	1.27	2.54	1.27
Max Height (mm)	2.03	5.08	2.03	2.03	5.08	2.03	5.08	2.03	5.08	2.03
Mechanical Data	Download	Download	Download	Download	Download	Download	Download	Download	Download	Download

Parameters / Models	JM38510/31003B2A	JM38510/31003BCA	JM38510/31003BDA	M38510/31003B2A	M38510/31003BCA	M38510/31003BDA	SN54LS21J	SNJ54LS21FK	SNJ54LS21J	SNJ54LS21W
Bits	2	2	2	2	2	2	2	2	2	2
F @ Nom Voltage(Max), Mhz	35	35	35	35	35	35	35	35	35	35
ICC @ Nom Voltage(Max), mA	0.0025	0.0025	0.0025	0.0025	0.0025	0.0025	0.0025	0.0025	0.0025	0.0025
Input Type	TTL	TTL	TTL	TTL	TTL	TTL	TTL	TTL	TTL	TTL
Operating Temperature Range, C	-55 to 125	-55 to 125	-55 to 125	-55 to 125	-55 to 125	-55 to 125	-55 to 125	-55 to 125	-55 to 125	-55 to 125
Output Drive (IOL/IOH)(Max), mA	-.04/8	-.04/8	-.04/8	-.04/8	-.04/8	-.04/8	-.04/8	-.04/8	-.04/8	-.04/8
Output Type	TTL	TTL	TTL	TTL	TTL	TTL	TTL	TTL	TTL	TTL
Package Group	LCCC	CDIP	CFP	LCCC	CDIP	CFP	CDIP	LCCC	CDIP	CFP
Package Size: mm2:W x L, PKG	20LCCC: 79 mm2: 8.89 x 8.89(LCCC)	See datasheet (CDIP)	See datasheet (CFP)	20LCCC: 79 mm2: 8.89 x 8.89(LCCC)	See datasheet (CDIP)	See datasheet (CFP)	See datasheet (CDIP)	20LCCC: 79 mm2: 8.89 x 8.89(LCCC)	See datasheet (CDIP)	See datasheet (CFP)
Rating	Military	Military	Military	Military	Military	Military	Military	Military	Military	Military
Schmitt Trigger	No	No	No	No	No	No	No	No	No	No
Technology Family	LS	LS	LS	LS	LS	LS	LS	LS	LS	LS
VCC(Max), V	5.5	5.5	5.5	5.5	5.5	5.5	5.5	5.5	5.5	5.5
VCC(Min), V	4.5	4.5	4.5	4.5	4.5	4.5	4.5	4.5	4.5	4.5
tpd @ Nom Voltage(Max), ns	20	20	20	20	20	20	20	20	20	20

	JM38510/31003B2A	JM38510/31003BCA	JM38510/31003BDA	M38510/31003B2A	M38510/31003BCA	M38510/31003BDA	SN54LS21J	SNJ54LS21FK	SNJ54LS21J	SNJ54LS21W
RoHS	See ti.com	See ti.com	See ti.com	See ti.com	See ti.com	See ti.com	See ti.com	See ti.com	See ti.com	See ti.com

Download
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: SN54LS21 (10)