CD74HCT597MG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The CD74HCT597MG4 is an 8-bit HCT-family parallel-in/serial-out shift register operating at up to 20 MHz with TTL-compatible inputs and a 50 pF load capacitance rating. It comes in a 16-pin SOIC package for easy PCB assembly. Available from stock worldwide with fast shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- OBSOLETE
- Datasheet
- CD74HCT597MG4 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-bit parallel-in/serial-out operation at up to 20 MHz for high-speed data serialization
- HCT logic family with TTL-compatible inputs enables direct interfacing with 5 V TTL logic without level shifters
- 16-pin SOIC package with 50 pF load capacitance rating supports robust signal integrity in dense designs
Applications
The CD74HCT597MG4 is used in industrial control systems and communications equipment where parallel data buses must be serialized for transmission over fewer signal lines. Its HCT compatibility makes it ideal for bridging legacy 5 V TTL backplanes to serial interfaces in data-acquisition modules and programmable logic controllers. It is also employed in test and measurement instrumentation for capturing parallel digital states and streaming them serially to microcontrollers.
Specifications
| YTEOL | 0 |
| Additional Feature | SISO OPERATION ALSO AVAILABLE |
| Count Direction | RIGHT |
| Family | HCT |
| JESD-30 Code | R-PDSO-G16 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | PARALLEL IN SERIAL OUT |
| Max Frequency@Nom-Sup | 20000000Hz |
| Number of Bits | 8 |
| Number of Functions | 1 |
| Output Polarity | TRUE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP16,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 50mA |
| Propagation Delay (tpd) | 57ns |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 4.5V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | MILITARY |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Trigger Type | POSITIVE EDGE |
| fmax-Min | 16MHz |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for CD74HCT597MG4:
Parallel In Serial Out, HCT Series, 8-Bit, Right Direction, True Output, CMOS, PDSO16
Frequently Asked Questions
What is the maximum clock frequency supported by the CD74HCT597MG4 shift register?
The CD74HCT597MG4 supports a maximum clock frequency of 20 MHz at nominal supply voltage, making it suitable for fast parallel-to-serial data conversion in industrial and communications applications. At this speed, the device can serialize an 8-bit word in as little as 400 ns, enabling efficient data throughput over SPI or similar serial buses.
Can the CD74HCT597MG4 interface directly with 5 V TTL logic without additional level translation?
Yes. As part of the HCT logic family, the CD74HCT597MG4 has TTL-compatible input thresholds (VIH min 2 V, VIL max 0.8 V), allowing it to connect directly to 5 V TTL-output devices without external level shifters. This simplifies board design in mixed-logic systems and reduces component count in 8-bit parallel bus serialization applications.
In which industrial or test-equipment designs does the CD74HCT597MG4 provide a compact bus-width reduction solution?
The CD74HCT597MG4 is well suited for programmable logic controllers, data-acquisition front ends, and automated test equipment where an 8-bit parallel data bus must be multiplexed to a single serial line. The 16-pin SOIC package occupies minimal board area, and the 50 pF load capacitance rating ensures clean signal transitions at 20 MHz, reducing the need for additional signal conditioning.
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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.
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