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54AC191  Product Folder

4-Bit Up/Down Counter
General
Description		 Features Datasheet Package
& Models		 Samples
& Pricing

Parametric Table Parametric Table
Temperature Min (deg C) -55 
Temperature Max (deg C) 125 

Datasheet

TitleSize in KbytesDate
View Online
Download
Receive via Email
54AC191 Up Down Counter with Preset and Ripple Clock 208 Kbytes 6-Aug-98 View Online Download Receive via Email
54AC191 Mil-Aero Datasheet MN54AC191-X 22 Kbytes   View Online Download Receive via Email

If you have trouble printing or viewing PDF file(s), see Printing Problems.

Package Availability, Models, Samples & Pricing

Part NumberPackageStatusModelsSamples &
Electronic
Orders		Budgetary PricingStd
Pack
Size		Package
Marking
TypePinsMSL/Lead-Free AvailabilityLead
Time		QtySPICEIBISQty$US each
5962-89749012A
(54AC191LMQB)		LCC20StatusFull productionN/AN/A 
Buy Now		50+$9.80rail
of
50		NSZSSXXYYA
54AC191
LMQB /QL>
5962-
89749012A
12-14 weeks500
5962-8974901EA
(54AC191DMQB)		CERDIP16StatusFull productionN/AN/A 50+$6.08rail
of
25		NSZSSXXYYA>
54AC191DMQB /QL
5962-8974901EA
6-8 weeks500
5962-8974901FA
(54AC191FMQB)		CERPACK16StatusFull productionN/AN/A 
Buy Now		50+$9.60rail
of
19		NSZSSXXYYA>
54AC191FMQB
QL 5962-
8974901FA
8-9 weeks500
JM38510R76305BEACERDIP16StatusFull productionN/AN/A 50+$68.00rail
of
25		NSZSSXXYYA>
JM38510R76305BEA
27014
N/A0
JM38510R76305BFACERPACK16StatusFull productionN/AN/A 50+$60.00rail
of
19		NSZSSXXYYA>
27014 Q
JM38510
R76305BFA
N/A0
JM54AC191B2ALCC20StatusFull productionN/AN/A   rail
of
N/A		NS JM38510
/76305B2A
27014 QS
ZSSXXYYA>
7-8 weeks500
JM38510R76305B2ALCC20StatusFull productionN/AN/A 50+$82.00rail
of
50		NS JM38510
R76305B2A
27014 QS
ZSSXXYYA>
N/A0
JM38510/76305BEACERDIP16StatusFull productionN/AN/A 50+$9.60rail
of
25		NS ZSSXXYYA>
JM38510/76305BEA
27014 QS
9-11 weeks500
JM38510/76305BFACERPACK16StatusFull productionN/AN/A 50+$9.80rail
of
19		NSZSSXXYYA>
JM38510/
76305BFA
27014 QS
8-9 weeks500
JM38510R76305S2ALCC20StatusFull productionN/AN/A 50+$138.00rail
of
50		NSZSSXXYYA
27014 Q >
JM38510R
76305S2A
N/A0
JM38510R76305SEACERDIP16StatusFull productionN/AN/A 50+$138.00rail
of
25		NS ZSSXXYYA>
JM38510R76305SEA
27014 Q
N/A0
JM38510R76305SFACERPACK16StatusFull productionN/AN/A 50+$138.00rail
of
19		NSZSSXXYYA>
27014 Q
JM38510
R76305SFA
N/A0

Obsolete Parts

Obsolete PartAlternate Part or SupplierSourceLast Time Buy Date
54AC191FM-MLS
54AC191FMQB
NATIONAL SEMICONDUCTOR
03/09/99

General Description

The 'AC191 is a reversible modulo 16 binary counter. It features synchronous counting and asynchronous presetting. The preset feature allows the 'AC191 to be used in programmable dividers. The Count Enable input, the Terminal Count output and the Ripple Clock output make possible a variety of methods of implementing multistage counters. In the counting modes, state changes are initiated by the rising edge of the clock.

Features

  • ICC reduced by 50%
  • High speed-133 MHz typical count frequency
  • Synchronous counting
  • Asynchronous parallel load
  • Cascadable
  • Outputs source/sink 24 mA
  • Standard Military Drawing (SMD)
    • 'AC191: 5962-89749
[Information as of 15-Jan-2004]

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