CD54HC573F Texas Instruments Integrated Circuit (Ceramic Dual-In-Line Packages) In Stock
Texas Instruments CD54HC573F is an 8-bit D-type transparent latch with tri-state outputs from the HC/UH CMOS family, operating from 2 V to 6 V with 50 pF load capacitance. Housed in a 20-pin ceramic DIP package, it is the broadside version of the HC373 for bus-driving applications.
- Manufacturer
- Texas Instruments
- Package
- Ceramic Dual-In-Line Packages
- Pin Count
- 20
- Lifecycle
- ACTIVE
- Datasheet
- CD54HC573F Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $15.6400(MOQ 20)
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 8-bit D-type transparent latch with tri-state outputs for unidirectional bus driving
- HC/UH CMOS family operating from 2 V to 6 V with 50 pF load capacitance rating
- Active-low output enable control for simple bus isolation and data hold functions
- Broadside pinout variant of HC373 compatible with standard 20-pin DIP footprints
- 20-pin ceramic DIP (CDIP-20) package offering enhanced reliability for harsh environments
Applications
The CD54HC573F is used as an address latch and bus buffer in microprocessor and microcontroller systems where 8 parallel data bits must be captured and held on a shared bus. Its tri-state outputs enable clean bus isolation in data memory interfaces, FPGA I/O expansion boards, and industrial control systems operating at 2 V to 6 V logic levels. The ceramic CDIP-20 package makes it a preferred choice for military-grade and high-reliability aerospace designs requiring extended temperature and mechanical durability.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Additional Feature | BROADSIDE VERSION OF 373 |
| 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 | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for CD54HC573F:
Frequently Asked Questions
Over what supply voltage range does the CD54HC573F operate, and what is its load capacitance rating?
The CD54HC573F operates from a supply voltage of 2 V to 6 V and is rated for a load capacitance of 50 pF on each output. This broad voltage range and standard capacitive load tolerance make it compatible with both 3.3 V and 5 V bus architectures in microprocessor-based designs.
How does the CD54HC573F differ from the CD54HC373, and when should one choose the 573 variant?
The CD54HC573F is the broadside pinout version of the HC373, meaning all D inputs are on one side of the 20-pin package and all Q outputs on the other, simplifying PCB layout for bus-driving applications. Choose the 573 when routing requires inputs and outputs to be on opposite sides, reducing trace crossover and improving signal integrity in address latching designs.
What type of package does the CD54HC573F use and what environments does this suit?
The CD54HC573F is housed in a 20-pin ceramic dual-in-line package (JESD-30 code R-GDIP-T20), which offers superior resistance to moisture, thermal cycling, and mechanical stress compared to plastic packages. This makes it well-suited for military-grade, aerospace, and harsh industrial environments where JEDEC ceramic packaging standards are required.
How does the active-low output enable function on the CD54HC573F support bus-sharing in multi-master systems?
The CD54HC573F features an active-low output enable (OE) pin that places all 8 tri-state outputs in a high-impedance state when driven high, effectively disconnecting the latch from the shared data bus. This tri-state control allows multiple devices to share a common 8-bit bus without bus contention, a common requirement in address decoding and memory bank switching applications.
In which embedded and industrial designs is the CD54HC573F a reliable address latch choice?
The CD54HC573F is a reliable address latch in 8-bit microprocessor systems such as Intel 8051 and Z80 designs where the address/data bus must be demultiplexed. Industrial PLCs, FPGA evaluation boards, and legacy industrial controllers operating at 5 V with 50 pF bus loads also rely on this 8-bit HC-family latch for stable, glitch-free data capture across up to 6 V supply rails.
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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+ | $17.3800 | $347.60 |
| 60+ | $15.6400 | $938.40 |
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