CD74HCT597M96G4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The CD74HCT597M96G4 is an 8-bit high-speed CMOS parallel-in/serial-out shift register operating up to 20 MHz in a 16-pin SOIC package. It features TTL-compatible inputs, 50 pF load tolerance, and SISO operation capability. Available from stock worldwide with RoHS-compliant e4 lead-free finish.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- OBSOLETE
- Datasheet
- CD74HCT597M96G4 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 shift register with additional SISO mode, supporting flexible data serialization in TTL-compatible HCT-family designs
- Maximum clock frequency of 20 MHz with 50 pF load capacitance rating for reliable high-speed serial data conversion
- 16-pin SOIC (R-PDSO-G16) package with RoHS e4 Pb-free finish enabling compliant, compact SMT board assembly
Applications
The CD74HCT597M96G4 is used to serialize parallel sensor or switch data onto a single wire in microcontroller-based systems, reducing GPIO count in keyboards, industrial I/O expanders, and panel meter interfaces. Its TTL-compatible HCT inputs allow direct interfacing with 5 V microcontrollers and legacy CMOS logic without level-shifting. The 20 MHz clock rate supports fast scan cycles in real-time control applications.
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 |
| Packing Method | TR |
| 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 CD74HCT597M96G4:
Parallel In Serial Out, HCT Series, 8-Bit, Right Direction, True Output, CMOS, PDSO16
Frequently Asked Questions
What is the maximum clock frequency and load capacitance rating for CD74HCT597M96G4?
The CD74HCT597M96G4 supports a maximum clock frequency of 20 MHz with a 50 pF load capacitance rating. This makes it suitable for fast parallel-to-serial data conversion tasks in 5 V HCT-family logic systems where multiple shift registers are daisy-chained on the same serial bus.
How can CD74HCT597M96G4 reduce GPIO pin count when reading an 8-channel switch bank on a microcontroller?
By connecting the 8 parallel inputs to the switch bank and clocking the shift register at up to 20 MHz, the microcontroller reads all 8 bits over a single serial data line plus clock and latch signals, reducing the GPIO requirement from 8 dedicated inputs down to 3 pins. This is especially valuable in space- and pin-constrained embedded designs.
Is CD74HCT597M96G4 compatible with 3.3 V logic systems, or does it require a 5 V supply?
The HCT family uses TTL-compatible input thresholds and is designed for a 4.5 V to 5.5 V supply rail, so direct 3.3 V input drive may not reliably meet the VIH threshold of 2 V minimum. For 3.3 V microcontroller interfaces a level-shifter or a comparable HC-series device operating at 3.3 V is the recommended alternative.
What package does CD74HCT597M96G4 use, and how does the tape-and-reel suffix affect procurement?
The device comes in a 16-pin SOIC (JESD-30 code R-PDSO-G16) with the M96 suffix indicating a 2500-unit tape-and-reel packaging. This reel quantity is standard for automated SMT pick-and-place assembly lines, but buyers needing smaller quantities should request cut-tape or tube packaging from their distributor.
Related Guides
How to Choose a BAS70 Schottky Diode for Signal Clamping: Selection Guide
A practical BAS70KFILM and BAS70-family Schottky diode selection guide for signal clamping, RF detection, leakage, and topology choices.
Jul 4, 2026
AMC1202DWVR Design Guide for Isolated Current Sensing
Practical AMC1202DWVR design guide covering shunt sizing, isolation layout, input filtering, ADC scaling, and sourcing choices.
Jul 4, 2026
1206 100 uF MLCC Design Guide for Compact Bulk Decoupling
Design guidance for applying CL31A107MQHNNNE and related 1206 MLCCs in compact bulk decoupling networks.
Jul 3, 2026
0402 10 nF MLCC Design Guide for High-Speed Decoupling
Practical design guidance for using CL05B103KB5NNNC and related 0402 MLCCs in high-speed decoupling networks.
Jul 3, 2026
Why Buy from FindMyChip
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.
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“We've been using FindMyChip for 2 years. Pricing is consistently 20-30% below Mouser/DigiKey for volume orders.”