SNJ54ACT573J Texas Instruments Integrated Circuit (Ceramic Dual-In-Line Packages) In Stock
The SNJ54ACT573J is an 8-channel transparent D-type latch with tri-state outputs in a 20-pin ceramic DIP package. It features active-low output enable, 50 pF load capacitance, and ACT-family CMOS-to-TTL compatibility for reliable bus driving. From $4.00 in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Ceramic Dual-In-Line Packages
- Pin Count
- 20
- Lifecycle
- ACTIVE
- Datasheet
- SNJ54ACT573J Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 8-channel transparent D-type latch with tri-state outputs enables efficient bus isolation and data holding in shared bus architectures
- ACT logic family provides TTL-compatible input thresholds with CMOS output levels, ensuring interoperability across mixed logic systems
- Active-low output enable (OE) control allows multiple devices to share a common data bus without contention
- 20-pin ceramic DIP (CDIP) package offers superior thermal stability and reliability for military-grade and high-reliability applications
Applications
The SNJ54ACT573J is used in military, aerospace, and high-reliability industrial applications requiring robust 8-bit data bus latching and tri-state bus driving. Its transparent latch operation and ACT logic family compatibility make it ideal for address latching in microprocessor systems, data buffering in memory interface circuits, and bus isolation in fault-tolerant control systems. The ceramic DIP package provides excellent environmental resilience for designs operating across extended temperature ranges and in harsh mechanical environments.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Additional Feature | LG_MAX |
| Control Type | ENABLE LOW |
| Count Direction | UNIDIRECTIONAL |
| Family | ACT |
| JESD-30 Code | R-GDIP-T20 |
| JESD-609 Code | e0 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | BUS DRIVER |
| Max I(ol) | 0.024A |
| 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) | 0.08mA |
| Prop. Delay@Nom-Sup | 13ns |
| Propagation Delay (tpd) | 13ns |
| Qualification Status | Not Qualified |
| Screening Level | MIL-PRF-38535 |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 4.5V |
| Supply Voltage-Nom (Vsup) | 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 SNJ54ACT573J:
Frequently Asked Questions
What logic family does the SNJ54ACT573J belong to?
The SNJ54ACT573J belongs to the ACT (Advanced CMOS TTL-compatible) logic family, which features CMOS-level output voltages with TTL-compatible input thresholds. This allows it to interface directly with both TTL and CMOS logic devices in mixed-logic system designs.
How does the transparent latch mode work in the SNJ54ACT573J?
In transparent latch mode, when the latch enable (LE) input is high, the Q outputs follow the D inputs in real time. When LE goes low, the last data state is latched and held at the outputs regardless of subsequent changes on the D inputs, providing stable data storage.
What package does the SNJ54ACT573J use and why is it significant?
The SNJ54ACT573J is housed in a 20-pin ceramic dual-in-line package (CDIP, JESD-30 code R-GDIP-T20). The ceramic construction provides superior hermeticity, high-temperature tolerance, and mechanical robustness, making it suitable for military (MIL-SPEC) and high-reliability industrial environments.
What are typical applications for the SNJ54ACT573J?
Typical applications include address and data bus latching in microprocessor-based systems, memory address buffering, output port expansion in industrial controllers, and bus driving in avionics and defense electronics. The tri-state outputs and active-low enable make it ideal for multi-master shared bus designs.
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