SN74LS191N

Mfr. #:: SN74LS191N
Description:: Counter ICs 4-Bit Sync Up/Down
Lifecycle:: New from this manufacturer.
Datasheet:: SN74LS191N Datasheet
Delivery:: DHL FedEx Ups TNT EMS
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ECAD Model:
More Information:: SN74LS191N more Information SN74LS191N Product Details

Product Attribute
Attribute Value

Manufacturer:: Texas Instruments

Product Category:: Counter ICs

RoHS:: Y

Mounting Style:: Through Hole

Package / Case:: PDIP-16

Counter Type:: Binary

Logic Family:: LS

Number of Bits:: 4 bit

Counting Sequence:: Up/Down

Operating Supply Voltage:: 4.75 V to 5.25 V

Minimum Operating Temperature:: 0 C

Maximum Operating Temperature:: + 70 C

Series:: SN74LS191

Packaging:: Tube

Function:: Counter

Operating Temperature Range:: 0 C to + 70 C

Output Current:: 16 mA/- 0.8 mA

Brand:: Texas Instruments

Product Type:: Counter ICs

Factory Pack Quantity:: 25

Subcategory:: Counter ICs

Unit Weight:: 0.033570 oz

Tags: SN74LS191N, SN74LS191, SN74LS19, SN74LS1, SN74LS, SN74L, SN74, SN7

Service Guarantees

We guarantee 100% customer satisfaction.

Quality Guarantees

We provide 90-360 days warranty.

If the items you received were not in perfect quality, we would be responsible for your refund or replacement, but the items must be returned in their original condition.
Our experienced sales team and tech support team back our services to satisfy all our customers.

we buy and manage excess electronic components, including excess inventory identified for disposal.
Email us if you have excess stock to sell.

Email: info@omo-ic.com

Step1:
Vacuum Packaging with PL

Step2:
Anti-Static Bag

Step3:
Packaging Boxes

SN74LS191N Ratings and Reviews

V***v

Great!

2019-06-12

V***v

Modules came 11 days early, in the work has not yet checked

2019-05-13

B***g

Workmanship worth the price. As for smoothly Tyko the zacina at one end. Between 1-3 5k11, 0k5-5k23 2-3, 1-2 0-4K6. Packed only envelope bubble and up miracle that arrived in full. If poszukujesz potentiometer for applications amateur highly recommended.

2019-03-20

A***n

Shipping 36 days. Left in p. ya.Good scarves.

2019-03-23

SN74LS191N Description

***AS INSTRUMENTS INCORPORATED: The '190, 'LS190, '191, and 'LS191 are synchronous, reversible up/down counters having a complexity of 58 equivalent gates. The '191 and 'LS191 are 4-bit binary counters and the '190 and 'LS190 are BCD counters. Synchronous operation is provided by having all flip-flops clocked simultaneously so that the outputs change coincident with each other when so instructed by the steering logic. This mode of operation eliminates the output counting spikes normally associated with asynchronous (ripple clock) counters.

***AS INSTRUMEN: The outputs of the four master-slave flip-flops are triggered on a low-to-high transition of the clock input if the enable input is low. A high at the enable input inhibits counting. Level changes at the enable input should be made only when the clock input is high. The direction of the count is determined by the level of the down/up input. When low, the counter count up and when high, it counts down. A false clock may occur if the down/up input changes while the clock is low. A false ripple carry may occur if both the clock and enable are low and the down/up input is high during a load pulse.

***AS INSTRUMENT: These counters are fully programmable; that is, the outputs may be preset to either level by placing a low on the load input and entering the desired data at the data inputs. The output will change to agree with the data inputs independently of the level of the clock input. This feature allows the counters to be used as modulo-N dividers by simply modifying the count length with the preset inputs.

***AS INSTR: The clock, down/up, and load inputs are buffered to lower the drive requirement which significantly reduces the number of clock drivers, etc., required for long parallel words.

***as Instruments (TI): Two outputs have been made available to perform the cascading function: ripple clock and maximum/minimum count. The latter output produces a high-level output pulse with a duration approximately equal to one complete cycle of the clock when the counter overflows or underflows. The ripple clock output produces a low-level output pulse equal in width to the low-level portion of the clock input when an overflow or underflow condition exists. The counters can be easily cascaded by feeding the ripple clock output to the enable input of the succeeding counter if parallel clocking is used, or to the clock input if parallel enabling is used. The maximum/minimum count output can be used to accomplish look-ahead for high-speed operation.

***: Series 54' and 54LS' are characterized for operation over the full military temperature range of -55°C to 125°C; Series 74' and 74LS' are characterized for operation from 0°C to 70°C.

***AS INSTRUMENT

Market price

Part #	Description	Stock	Price
SN74LS191N DISTI # V39:1801_07345617	Counter Single 4-Bit Async Binary UP/Down 16-Pin PDIP Tube RoHS: Compliant	446	1000:$0.4553 500:$0.5439 100:$0.6173 10:$0.7675 1:$0.8753
SN74LS191N DISTI # 296-14886-5-ND	IC SYNC UP/DOWN COUNTER 16-DIP RoHS: Compliant Min Qty: 1 Container: Tube	3151In Stock	5000:$0.4456 2500:$0.4690 1000:$0.5025 500:$0.6365 100:$0.7705 25:$0.9380 10:$0.9880 1:$1.1100
SN74LS191NSR DISTI # 296-29978-1-ND	IC SYNC 4-BIT UP/DN CNTR 16SO RoHS: Compliant Min Qty: 1 Container: Cut Tape (CT)	3027In Stock	1000:$0.5176 500:$0.6556 100:$0.7936 10:$1.0180 1:$1.1400
SN74LS191NSR DISTI # 296-29978-6-ND	IC SYNC 4-BIT UP/DN CNTR 16SO RoHS: Compliant Min Qty: 1 Container: Digi-Reel®	3027In Stock	1000:$0.5176 500:$0.6556 100:$0.7936 10:$1.0180 1:$1.1400
SN74LS191NSR DISTI # 296-29978-2-ND	IC SYNC 4-BIT UP/DN CNTR 16SO RoHS: Compliant Min Qty: 2000 Container: Tape & Reel (TR)	Temporarily Out of Stock	10000:$0.4288 6000:$0.4456 2000:$0.4690
SN74LS191N DISTI # 29457527	Counter Single 4-Bit Async Binary UP/Down 16-Pin PDIP Tube RoHS: Compliant	9000	1000:$0.4382 750:$0.4859
SN74LS191N DISTI # 30991081	Counter Single 4-Bit Async Binary UP/Down 16-Pin PDIP Tube RoHS: Compliant	446	100:$0.6173 15:$0.7722
SN74LS191N DISTI # SN74LS191N	Counter Single 4-Bit Async Binary UP/Down 16-Pin PDIP Tube - Rail/Tube (Alt: SN74LS191N) RoHS: Compliant Min Qty: 1 Container: Tube	Americas - 200	1:$0.8489 10:$0.7499 25:$0.7479 50:$0.7459 100:$0.6139 500:$0.5399 1000:$0.4869
SN74LS191N DISTI # SN74LS191N	Counter Single 4-Bit Async Binary UP/Down 16-Pin PDIP Tube (Alt: SN74LS191N) RoHS: Compliant Min Qty: 25 Container: Tube	Europe - 650	25:€0.6699 50:€0.5479 100:€0.5019 150:€0.4299 250:€0.4019
SN74LS191NSR DISTI # SN74LS191NSR	Counter Single 4-Bit Async Binary UP/Down 16-Pin SOP T/R - Tape and Reel (Alt: SN74LS191NSR) RoHS: Compliant Min Qty: 2000 Container: Reel	Americas - 0	2000:$0.4859 4000:$0.4619 8000:$0.4469 12000:$0.4319 20000:$0.4199
SN74LS191N DISTI # 61M9972	IC, COUNTER/MULTIPLIER/DIVIDER,Logic Family / Base Number:74LS191,Counter Type:Binary, Up / Down,Clock Frequency:25MHz,Count Maximum:15,Logic Case Style:DIP,No. of Pins:16Pins,Supply Voltage Min:4.75V,Supply Voltage RoHS Compliant: Yes	0	1:$1.1000 10:$0.9380 100:$0.7210 500:$0.6370 1000:$0.5030 5000:$0.4460 10000:$0.4290
SN74LS191N	Synchronous 4-Bit Up/Down Counters With Up/Down Mode Control	6000	1000:$0.3800 750:$0.4300 500:$0.5300 250:$0.6500 100:$0.7100 25:$0.8300 10:$0.8900 1:$1.0000
SN74LS191NSR	Synchronous 4-Bit Up/Down Counters With Up/Down Mode Control	2000	1000:$0.3800 750:$0.4300 500:$0.5300 250:$0.6500 100:$0.7100 25:$0.8300 10:$0.8900 1:$1.0000
SN74LS191N DISTI # 595-SN74LS191N	Counter ICs 4-Bit Sync Up/Down RoHS: Compliant	1197	1:$1.1000 10:$0.9380 100:$0.7210 500:$0.6370 1000:$0.5030 2500:$0.4460 10000:$0.4290
SN74LS191NSR DISTI # 595-SN74LS191NSR	Counter ICs 4-Bit Sync Up/Down RoHS: Compliant	1490	1:$1.1000 10:$0.9380 100:$0.7210 500:$0.6370 1000:$0.5030 2000:$0.4460 10000:$0.4290
SN74LS191NE4 DISTI # 595-SN74LS191NE4	Counter ICs 4-Bit Sync Up/Down RoHS: Compliant	0
SN74LS191NSRG4 DISTI # 595-SN74LS191NSRG4	Counter ICs Sync 4B Up Down Counters RoHS: Compliant	0
SN74LS191NSRE4 DISTI # 595-SN74LS191NSRE4	Counter ICs 4-Bit Sync Up/Down RoHS: Compliant	0
SN74LS191N	Binary Counter, LS Series, Synchronous, Positive Edge Triggered, 4-Bit, Bidirectional, TTL, PDIP16 RoHS: Compliant	14299	1000:$0.4500 500:$0.4700 100:$0.4900 25:$0.5100 1:$0.5500
SN74LS191NSR	Binary Counter, LS Series, Synchronous, Positive Edge Triggered, 4-Bit, Bidirectional, TTL, PDSO16 RoHS: Compliant	4000	1000:$0.4500 500:$0.4700 100:$0.4900 25:$0.5100 1:$0.5500
SN74LS191NS	RoHS: Not Compliant	2400
SN74LS191N DISTI # 307705	4-BIT BINARY UP/DOWN COUNTER SN74LS191N, EA	977	1:£2.0100 15:£0.6800 100:£0.5200
SN74LS191N	Counter, Up/Down, 4 Bit Binary, 16 Pin, Plastic, DIP	1331	511:$0.3500 90:$0.3920 1:$1.1200
SN74LS191N	Counter, Up/Down, 4 Bit Binary, 16 Pin, Plastic, DIP	419	90:$0.3920 19:$0.5600 1:$1.1200
SN74LS191N	Counter, Up/Down, 4 Bit Binary, 16 Pin, Plastic, DIP	9	5:$0.8400 1:$1.1200
SN74LS191N	Counter, Up/Down, 4 Bit Binary, 16 Pin, Plastic, DIP	6	5:$0.8400 1:$1.1200
SN74LS191N	Counter, Up/Down, 4 Bit Binary, 16 Pin, Plastic, DIP	3	1:$1.1200
SN74LS191N	Counter, Up/Down, 4 Bit Binary, 16 Pin, Plastic, DIP	21	19:$0.8400 5:$1.1200 1:$1.4000
SN74LS191N	Counter, Up/Down, 4 Bit Binary, 16 Pin, Plastic, DIP	16	5:$1.1200 1:$1.4000
SN74LS191N	Counter, Up/Down, 4 Bit Binary, 16 Pin, Plastic, DIP	1	1:$1.4000
SN74LS191N	Counter, Up/Down, 4 Bit Binary, 16 Pin, Plastic, DIP	20	18:$0.7500 4:$1.2000 1:$1.5000
SN74LS191N	Counter, Up/Down, 4 Bit Binary, 16 Pin, Plastic, DIP	1	1:$1.5000
SN74LS191N	Counter, Up/Down, 4 Bit Binary, 16 Pin, Plastic, DIP	385	251:$0.6400 64:$0.8000 1:$1.6000
SN74LS191N	Counter, Up/Down, 4 Bit Binary, 16 Pin, Plastic, DIP	621	201:$0.8000 51:$1.0000 1:$2.0000
SN74LS191N	Counter, Up/Down, 4 Bit Binary, 16 Pin, Plastic, DIP	155	48:$1.0718 13:$1.2861 1:$2.1435
SN74LS191N	Counter, Up/Down, 4 Bit Binary, 16 Pin, Plastic, DIP	111	48:$1.0718 13:$1.2861 1:$2.1435
SN74LS191N	Counter, Up/Down, 4 Bit Binary, 16 Pin, Plastic, DIP	91	48:$1.0718 13:$1.2861 1:$2.1435
SN74LS191N		431
SN74LS191N		18
SN74LS191N		32
SN74LS191NE4		15
SN74LS191N	INSTOCK	804
SN74LS191N		130
SN74LS191N	INSTOCK	222
SN74LS191N	INSTOCK	200
SN74LS191N		40281
SN74LS191NSR		7177
SN74LS191NS		630
SN74LS191N3	INSTOCK	2000
SN74LS191N-TI		527
SN74LS191N DISTI # 1470788	IC, COUNTER/MULTIPLIER/DIVIDER RoHS: Compliant	651	1:$1.7500 10:$1.4900 100:$1.1500 500:$1.0100 1000:$0.7960 2500:$0.7060 10000:$0.6800 25000:$0.6590
SN74LS191N DISTI # C1S746202098743	Counter Single 4-Bit Async Binary UP/Down 16-Pin PDIP Tube RoHS: Compliant	58	50:$0.5750 10:$0.7460 1:$1.8600
SN74LS191N DISTI # 1470788	IC, COUNTER/MULTIPLIER/DIVIDER RoHS: Compliant	895	1:£0.8100 25:£0.7090 50:£0.6280 100:£0.5460 250:£0.5140

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SN74LS191N

Step1:Vacuum Packaging with PL

Step2:Anti-Static Bag

Step3:Packaging Boxes

V***v

V***v

B***g

A***n

Step1:
Vacuum Packaging with PL

Step2:
Anti-Static Bag

Step3:
Packaging Boxes