Part Details for CD74AC191E by Texas Instruments
Results Overview of CD74AC191E by Texas Instruments
- Distributor Offerings: (2 listings)
- Number of FFF Equivalents: (5 replacements)
- CAD Models: (Request Part)
- Number of Functional Equivalents: (10 options)
- Part Data Attributes: (Available)
- Reference Designs: (Not Available)
Tip: Data for a part may vary between manufacturers. You can filter for manufacturers on the top of the page next to the part image and part number.
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CD74AC191E Information
CD74AC191E by Texas Instruments is a Counter.
Counters are under the broader part category of Logic Components.
Digital logic governs the behavior of signals in electronic circuits, enabling complex decisions based on simple binary inputs (yes/no). Logic components perform operations from these signals. Read more about Logic Components on our Logic part category page.
Price & Stock for CD74AC191E
| Part # | Distributor | Description | Stock | Price | Buy | |
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DISTI #
2156-CD74AC191E-ND
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DigiKey | PRESETTABLE 4-BIT COUNTER Min Qty: 75 Lead time: 1 Weeks Container: Bulk MARKETPLACE PRODUCT |
3021 In Stock |
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$4.0000 | Buy Now |
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Rochester Electronics | PRESETTABLE SYNCHRONOUS 4-BIT BINARY UP/DOWN COUNTER RoHS: Not Compliant Status: Obsolete Min Qty: 1 | 3059 |
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$3.0800 / $3.8500 | Buy Now |
Part Details for CD74AC191E
CD74AC191E CAD Models
CD74AC191E Part Data Attributes
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CD74AC191E
Texas Instruments
Buy Now
Datasheet
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Compare Parts:
CD74AC191E
Texas Instruments
Presettable Synchronous 4-Bit Binary Up/Down Counter 16-PDIP -55 to 125
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| Pbfree Code | No | |
| Rohs Code | No | |
| Part Life Cycle Code | Obsolete | |
| Ihs Manufacturer | TEXAS INSTRUMENTS INC | |
| Part Package Code | DIP | |
| Package Description | PLASTIC, DIP-16 | |
| Pin Count | 16 | |
| Reach Compliance Code | not_compliant | |
| HTS Code | 8542.39.00.01 | |
| Additional Feature | TCO OUTPUT | |
| Count Direction | BIDIRECTIONAL | |
| Family | AC | |
| JESD-30 Code | R-PDIP-T16 | |
| Length | 19.305 mm | |
| Load Capacitance (CL) | 50 pF | |
| Load/Preset Input | YES | |
| Logic IC Type | BINARY COUNTER | |
| Max Frequency@Nom-Sup | 60000000 Hz | |
| Mode of Operation | SYNCHRONOUS | |
| Number of Functions | 1 | |
| Number of Terminals | 16 | |
| Operating Temperature-Max | 125 °C | |
| Operating Temperature-Min | -55 °C | |
| Package Body Material | PLASTIC/EPOXY | |
| Package Code | DIP | |
| Package Equivalence Code | DIP16,.3 | |
| Package Shape | RECTANGULAR | |
| Package Style | IN-LINE | |
| Peak Reflow Temperature (Cel) | NOT SPECIFIED | |
| Propagation Delay (tpd) | 20.4 ns | |
| Qualification Status | Not Qualified | |
| Seated Height-Max | 5.08 mm | |
| Supply Voltage-Max (Vsup) | 5.5 V | |
| Supply Voltage-Min (Vsup) | 1.5 V | |
| Supply Voltage-Nom (Vsup) | 5 V | |
| Surface Mount | NO | |
| Technology | CMOS | |
| Temperature Grade | MILITARY | |
| Terminal Form | THROUGH-HOLE | |
| Terminal Pitch | 2.54 mm | |
| Terminal Position | DUAL | |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED | |
| Trigger Type | POSITIVE EDGE | |
| Width | 7.62 mm | |
| fmax-Min | 68 MHz |
Alternate Parts for CD74AC191E
This table gives cross-reference parts and alternative options found for CD74AC191E. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of CD74AC191E, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.
| Part Number | Manufacturer | Composite Price | Description | Compare |
|---|---|---|---|---|
| M38510R76305BEX | Texas Instruments | Check for Price | AC SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL BINARY COUNTER, CDIP16, CERAMIC, DIP-16 | CD74AC191E vs M38510R76305BEX |
| M38510/76305BEX | Teledyne e2v | Check for Price | Binary Counter, AC Series, Synchronous, Positive Edge Triggered, 4-Bit, Bidirectional, CMOS, CDIP16, CERAMIC, DIP-16 | CD74AC191E vs M38510/76305BEX |
| M38510/76305SEX | Intersil Corporation | Check for Price | AC SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL BINARY COUNTER, CDIP16, CERAMIC, DIP-16 | CD74AC191E vs M38510/76305SEX |
| 74AC191PC | National Semiconductor Corporation | Check for Price | Binary Counter, AC Series, Synchronous, Positive Edge Triggered, 4-Bit, Bidirectional, CMOS, PDIP16 | CD74AC191E vs 74AC191PC |
| 5962H9656401QEX | Cobham Power Products | Check for Price | Binary Counter, AC Series, Synchronous, Positive Edge Triggered, 4-Bit, Bidirectional, CMOS, CDIP16, SIDE BRAZED, CERAMIC, DIP-16 | CD74AC191E vs 5962H9656401QEX |
CD74AC191E Frequently Asked Questions (FAQ)
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The CD74AC191E can handle clock frequencies up to 100 MHz.
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To ensure proper synchronization, the clock input (CLK) should be connected to a stable clock source, and the clock enable input (CLKEN) should be tied high or connected to a clock enable signal.
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A simple POR circuit can be implemented using a resistor, capacitor, and diode connected to the VCC pin. The capacitor should be discharged slowly to ensure a clean reset signal.
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To minimize metastability issues, ensure that the clock and data inputs are properly synchronized, and use a clock frequency that is at least 10 times faster than the data rate. Additionally, consider using a synchronizer circuit or a metastable-resistant design.
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The CD74AC191E can drive capacitive loads up to 100 pF. Exceeding this limit may affect the device's performance and reliability.