CD54HC573F3A Texas Instruments Integrated Circuit (Ceramic Dual-In-Line Packages) In Stock
Texas Instruments CD54HC573F3A is an octal D-type latch with 3-state outputs in a 20-pin ceramic DIP package, operating from 2 V to 6 V. Part of the HC logic family, it supports 50 pF load capacitance with active-high output enable control. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Ceramic Dual-In-Line Packages
- Pin Count
- 20
- Lifecycle
- ACTIVE
- Datasheet
- CD54HC573F3A Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $15.5800(MOQ 20)
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Non-compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Octal 8-bit D-type latch with 3-state outputs enabling easy data bus isolation and multiplexing in 8-bit parallel designs
- HC/UH family operation from 2 V to 6 V providing compatibility with both TTL-level and CMOS logic systems
- Active-high output enable for direct bus driving with low skew across all 8 outputs simultaneously
- Ceramic DIP-20 package rated for extended temperature ranges making it suitable for military and high-reliability applications
Applications
The CD54HC573F3A is used in address latching, data bus buffering, and I/O expansion circuits in microprocessor and microcontroller systems where 8-bit parallel data must be held and released under enable control. Its ceramic package makes it suitable for military-grade and aerospace electronics where plastic packaging is not permissible. Legacy industrial controllers and test equipment designs also use this device for reliable 3-state bus management across shared data lines.
Specifications
| Pbfree Code | Yes |
| Reach Compliance Code | Not Compliant |
| YTEOL | 15 |
| Control Type | ENABLE LOW/HIGH |
| Count Direction | UNIDIRECTIONAL |
| Family | HC/UH |
| JESD-30 Code | R-GDIP-T20 |
| JESD-609 Code | e0 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | BUS DRIVER |
| Max I(ol) | 0.0078A |
| Number of Bits | 8 |
| Number of Functions | 8 |
| Number of Ports | 2 |
| Output Characteristics | 3-STATE |
| Output Polarity | TRUE |
| Package Body Material | CERAMIC, GLASS-SEALED |
| Package Equivalence Code | DIP20,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Packing Method | TUBE |
| Power Supply Current-Max (ICC) | 0.16mA |
| Prop. Delay@Nom-Sup | 53ns |
| Propagation Delay (tpd) | 265ns |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 6V |
| Supply Voltage-Min (Vsup) | 2V |
| Supply Voltage-Nom (Vsup) | 4.5V |
| Surface Mount | NO |
| Technology | CMOS |
| Temperature Grade | MILITARY |
| Terminal Finish | Tin/Lead (Sn/Pb) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Package | Ceramic Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Non-compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for CD54HC573F3A:
Frequently Asked Questions
What logic family does the CD54HC573F3A belong to and what supply voltage does it require?
The CD54HC573F3A belongs to the High-Speed CMOS (HC) logic family and operates from a supply of 2 V to 6 V. This range allows it to interface with 3.3 V and 5 V systems, and its CMOS technology provides lower quiescent current than TTL equivalents at comparable switching speeds.
How does the 3-state output of the CD54HC573F3A enable bus sharing among multiple devices?
When the active-high output enable is de-asserted, all 8 output pins are placed into a high-impedance state, effectively disconnecting the latch from the bus. Multiple CD54HC573F3A devices can share the same 8-bit data bus by enabling only one at a time, which is standard practice in multiplexed address/data bus architectures.
Why choose the ceramic DIP package of the CD54HC573F3A over a plastic SOIC variant for high-reliability designs?
The ceramic dual-in-line package offers hermetic sealing, better resistance to moisture ingress, and a wider operating temperature range than plastic SOIC packages. These properties are required by MIL-STD-883 and other defense/aerospace standards, making the CD54HC573F3A appropriate where plastic-packaged logic ICs would fail qualification testing.
For a legacy 8-bit microprocessor bus interface, how does the CD54HC573F3A's 50 pF load capacitance rating affect signal integrity?
The device is characterized at a 50 pF load capacitance, which corresponds to typical bus stub and trace capacitances in through-hole PCB designs. At this load, propagation delay is maintained within the HC family specification, ensuring valid setup and hold margins for the connected microprocessor running at clock frequencies up to several MHz.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 20+ | $20.8300 | $416.60 |
| 500+ | $17.5300 | $8765.00 |
| 1000+ | $16.5600 | $16560.00 |
| 10000+ | $15.5800 | $155800.00 |
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