SN74LS191D

Mfr. #:: SN74LS191D
Description:: Counter ICs 4-Bit Sync Up/Down
Lifecycle:: New from this manufacturer.
Datasheet:: SN74LS191D Datasheet
Delivery:: DHL FedEx Ups TNT EMS
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More Information:: SN74LS191D more Information SN74LS191D Product Details

Product Attribute
Attribute Value

Manufacturer:: Texas Instruments

Product Category:: Counter ICs

RoHS:: Y

Mounting Style:: SMD/SMT

Package / Case:: SOP-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:: 40

Subcategory:: Counter ICs

Unit Weight:: 0.004998 oz

Tags: SN74LS191D, SN74LS191, SN74LS19, SN74LS1, SN74LS, SN74L, SN74, SN7

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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.
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we buy and manage excess electronic components, including excess inventory identified for disposal.
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Email: info@omo-ic.com

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SN74LS191D Ratings and Reviews

G***s

I got order, but not tested yet.

2019-06-25

L***o

not yet tested.. thanks..

2019-07-05

SN74LS191D Description

***as Instruments: Synchronous 4-Bit Up/Down Counters With Up/Down Mode Control 16-SOIC 0 to 70

***ical: Counter Single 4-Bit Async Binary UP/Down 16-Pin SOIC Tube

***ment14 APAC: LOGIC, SYNC 4-BIT UP/DN CNTR, 16SOIC; Counter Type:Binary, Up / Down; Clock Frequency:25MHz; Count Maximum:15; Supply Voltage Range:4.75V to 5.25V; Logic Case Style:SOIC; No. of Pins:16; Operating Temperature Range:0°C to +70°C; SVHC:No SVHC (20-Jun-2011); Clock Frequency Max:25MHz; Count Max:16; Logic Function Number:74191; Logic IC Base Number:74191; Logic IC Family:LS; Logic IC Function:4-Bit Synchronous Up-Down Binary Counter; Package / Case:SOIC; Supply Voltage Max:5.25V; Supply Voltage Min:4.75V; Termination Type:SMD

***as Instruments (TI): 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 INSTRUMENT: 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 INS: 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.

***TEXAS: 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 Inc.: 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.

***as Instruments (TI): 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.

***ASI

Market price

Part #	Description	Stock	Price
SN74LS191D DISTI # 29449745	Counter Single 4-Bit Async Binary UP/Down 16-Pin SOIC Tube RoHS: Compliant	720	1000:$0.4928 720:$0.6241
SN74LS191DE4 DISTI # 29449666	Counter Single 4-Bit Async Binary UP/Down 16-Pin SOIC Tube RoHS: Compliant	720	2500:$0.4562 1000:$0.4932 720:$0.6246
SN74LS191D DISTI # 296-33974-5-ND	IC SYNC 4-BIT UP/DN CNTR 16-SOIC RoHS: Compliant Min Qty: 1 Container: Tube	131In Stock	5000:$0.4854 2520:$0.5110 1000:$0.5475 520:$0.6935 120:$0.8395 40:$1.0220 10:$1.0770 1:$1.2000
SN74LS191DR DISTI # SN74LS191DR-ND	IC SYNC 4-BIT UP/DN CNTR 16-SOIC RoHS: Compliant Min Qty: 2500 Container: Tape & Reel (TR)	Temporarily Out of Stock	2500:$0.4256
SN74LS191DE4 DISTI # SN74LS191DE4-ND	IC SYNC 4-BIT UP/DN CNTR 16-SOIC RoHS: Compliant Min Qty: 720 Container: Tube	Temporarily Out of Stock	720:$0.6935
SN74LS191D DISTI # SN74LS191D	Counter Single 4-Bit Async Binary UP/Down 16-Pin SOIC Tube - Rail/Tube (Alt: SN74LS191D) RoHS: Compliant Min Qty: 720 Container: Tube	Americas - 0	720:$0.5289 800:$0.5039 1520:$0.4869 3600:$0.4699 7200:$0.4569
SN74LS191D DISTI # SN74LS191D	Counter Single 4-Bit Async Binary UP/Down 16-Pin SOIC Tube (Alt: SN74LS191D) RoHS: Compliant Min Qty: 40 Container: Tube	Europe - 0	40:€0.7299 80:€0.5969 160:€0.5469 240:€0.4689 400:€0.4379
SN74LS191DR DISTI # SN74LS191DR	Counter Single 4-Bit Async Binary UP/Down 16-Pin SOIC T/R - Tape and Reel (Alt: SN74LS191DR) RoHS: Compliant Min Qty: 2500 Container: Reel	Americas - 0	2500:$0.4409 5000:$0.4189 10000:$0.4049 15000:$0.3919 25000:$0.3809
SN74LS191DE4 DISTI # SN74LS191DE4	Counter Single 4-Bit Async Binary UP/Down 16-Pin SOIC Tube - Rail/Tube (Alt: SN74LS191DE4) RoHS: Compliant Min Qty: 720 Container: Tube	Americas - 0	720:$0.5289 800:$0.5039 1520:$0.4869 3600:$0.4699 7200:$0.4569
SN74LS191D	Synchronous 4-Bit Up/Down Counters With Up/Down Mode Control	1000	1000:$0.4200 750:$0.4600 500:$0.5800 250:$0.7100 100:$0.7700 25:$0.9000 10:$0.9800 1:$1.0900
SN74LS191D DISTI # 595-SN74LS191D	Counter ICs 4-Bit Sync Up/Down RoHS: Compliant	695	1:$1.2000 10:$1.0300 100:$0.7850 500:$0.6940 1000:$0.5480 2500:$0.4860 10000:$0.4680
SN74LS191DR DISTI # 595-SN74LS191DR	Counter ICs 4-Bit Sync Up/Down RoHS: Compliant	0	1:$1.0000 10:$0.8500 100:$0.6540 500:$0.5780 1000:$0.4560 2500:$0.4050 10000:$0.3900
SN74LS191DRG4 DISTI # 595-SN74LS191DRG4	Counter ICs Sync 4B Up Down Counters RoHS: Compliant	0
SN74LS191DG4 DISTI # 595-SN74LS191DG4	Counter ICs Sync 4B Up Down Counters RoHS: Compliant	0
SN74LS191DE4 DISTI # 595-SN74LS191DE4	Counter ICs 4-Bit Sync Up/Down RoHS: Compliant	0	1:$1.2000 10:$1.0200 100:$0.7850 500:$0.6940 1000:$0.5480 2500:$0.4860 10000:$0.4680
SN74LS191DRE4 DISTI # 595-SN74LS191DRE4	Counter ICs 4-Bit Sync Up/Down RoHS: Compliant	0
SN74LS191D	RoHS: Not Compliant	2728	1000:$0.1300 100:$0.1400 500:$0.1400 25:$0.1500 1:$0.1600
SN74LS191D	Binary Counter, LS Series, Synchronous, Positive Edge Triggered, 4-Bit, Bidirectional, TTL, PDSO16 RoHS: Compliant	14027	1000:$0.4900 500:$0.5100 100:$0.5300 25:$0.5600 1:$0.6000
SN74LS191DR	Binary Counter, LS Series, Synchronous, Positive Edge Triggered, 4-Bit, Bidirectional, TTL, PDSO16 RoHS: Compliant	5000	1000:$0.4000 500:$0.4200 100:$0.4300 25:$0.4500 1:$0.4900
SN74LS191D		1240
SN74LS191D		39
SN74LS191D		528	6:$0.9375 23:$0.6094 84:$0.3516 286:$0.3000
SN74LS191D		10	6:$0.9375
SN74LS191DR		6417	6:$0.9375 23:$0.6094 84:$0.3516 286:$0.3000 618:$0.2625 1468:$0.2438
SN74LS191D	Counter, Up/Down, 4 Bit Binary, 16 Pin, Plastic, SOP	422	97:$0.3750 21:$0.6250 1:$1.2500
SN74LS191D	Counter, Up/Down, 4 Bit Binary, 16 Pin, Plastic, SOP	8	5:$1.0000 1:$1.2500
SN74LS191DR		2444	1334:$0.6600 770:$0.7500 1:$2.4000
SN74LS191DR2	LS SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL BINARY COUNTER, PDSO16	2500	572:$0.3125 121:$0.3500 1:$1.0000
SN74LS191D		1125
SN74LS191D		132
SN74LS191D	INSTOCK	258
SN74LS191D DISTI # 1752954	LOGIC, SYNC 4-BIT UP/DN CNTR, 16SOIC RoHS: Compliant	0	1:$1.9100 10:$1.6300 100:$1.2400 500:$1.1100 1000:$0.8680 2500:$0.7690 10000:$0.7410 25000:$0.7180

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Availability

Stock:: 541
On Order:: 2524
Enter Quantity:

Current price of SN74LS191D is for reference only, if you want to get best price, please submit a inquiry or direct email to our sales team sales@omo-ic.com

Reference price (USD)

Quantity
Unit Price
Ext. Price

1: ~~$1.20~~; ~~$1.20~~

10: ~~$1.03~~; ~~$10.30~~

100: ~~$0.78~~; ~~$78.50~~

500: ~~$0.69~~; ~~$347.00~~

1000: ~~$0.55~~; ~~$548.00~~

2500: ~~$0.49~~; ~~$1 215.00~~

10000: ~~$0.47~~; ~~$4 680.00~~

25000: ~~$0.45~~; ~~$11 325.00~~

Due to semiconductor in short supply from 2021,below price is the Normal price before 2021.please send inquire to confirm.

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SN74LS191D

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G***s

L***o

Step1:
Vacuum Packaging with PL

Step2:
Anti-Static Bag

Step3:
Packaging Boxes