Mingjiada Electronics (Shenzhen) Co., Ltd. maintains a long-term stock of LEOAC74PT-D and offers high prices for the purchase of surplus inventory of this model and other ST (STMicroelectronics) aerospace-grade components. We welcome inquiries and partnership discussions from both new and existing customers.
LEOAC74PT-D Product Overview
The LEOAC74PT-D is a radiation-hardened, dual-channel, positive-edge-triggered D-type flip-flop in a plastic package developed by STMicroelectronics (ST). It is specifically designed for high-reliability applications such as low Earth orbit (LEO) satellites and aerospace electronic systems. Housed in a 20-TSSOP surface-mount package, this device features a wide operating voltage range (2V to 6V), excellent radiation resistance, and low outgassing characteristics, making it an ideal choice for data synchronization, state machine logic, and timing control in aerospace electronic systems.
Key Applications: Low Earth Orbit (LEO) satellite control systems, on-board data processing units, aerospace telemetry and control instruments, and other applications requiring radiation-hardened and highly reliable logic processing.
Key Specifications
Manufacturer: STMicroelectronics
Part Number: LEOAC74PT-D
Package: 20-TSSOP (4.40 mm wide)
Logic Type: D-type flip-flops, dual-element, 1 bit per element
Triggering Mode: Rising-edge trigger
Output Type: Complementary outputs (Q and /Q)
Features: With Set and Reset
Supply Voltage: 2 V to 6 V (absolute maximum rating 7 V)
Maximum Propagation Delay: 9 ns @ 4.5 V, 50 pF load
Output Drive Current: ±24 mA (high/low levels)
Quiescent Current (Iq): 40 µA
Input Capacitance: 10 pF
Operating Temperature: -40°C to +125°C
Automotive-Grade Certification: AEC-Q100
RoHS Status: Compliant with RoHS 3
LEOAC74PT-D Key Features
1. Radiation-Hardened and Space-Grade Reliability
Total Ionizing Dose (TID): Withstands 50 krad (Si), meeting the requirements for LEO orbital missions
Single-Event Latch-Up (SEL) Immunity: Linear Energy Transfer (LET) tolerance threshold up to 62.5 MeV·cm²/mg, ensuring no latch-up occurs in space radiation environments
Low Outgassing Characteristics: RML < 1%, CVCM < 0.1%, meeting spacecraft’s stringent requirements for material outgassing
Nickel/Palladium/Gold (NiPdAu) plating: No whisker risk, ensuring long-term reliability
Gold wire bonding: Enhances connection reliability and corrosion resistance
2. High-Performance Logic Characteristics
High-speed CMOS dual-D type positive-edge-triggered design
Wide operating voltage range, compatible with 2V to 6V systems
Complementary outputs, facilitating the implementation of differential signals or inverted logic
Preset and reset functions, enhancing flexibility in state control
3. Lightweight Design
Single-chip weight of only 80 mg, suitable for weight-sensitive on-board satellite applications
Typical Applications
The LEOAC74PT-D is primarily targeted at the following fields:
Low Earth Orbit (LEO) satellites: satellite attitude control systems, onboard computers, data bus management
Aerospace electronic systems: digital signal processing, timing synchronization, state machine logic, pulse shaping
Radiation-hardened logic circuits: serving as high-reliability logic units in ionizing radiation environments
Deep-space probes and space instruments: telemetry, tracking, and command (TTC) modules, telemetry data processing
Supply and Buyback Services
In-Stock Availability
Mingjiada Electronics (Shenzhen) Co., Ltd. maintains a long-term inventory of LEOAC74PT-D in stock—all genuine, factory-direct products with traceable supply chains. We offer:
Genuine, factory-direct products with available datasheets
Flexible lead times, supporting both small-batch samples and large-volume orders
Rapid response and global shipping
High-Priced Buyback
At the same time, our company consistently offers high prices for the buyback of the following inventory:
LEOAC74PT-D and other ST (STMicroelectronics) aerospace-grade/automotive-grade components
All types of excess inventory, obsolete parts, and obsolete chips
Priority given to factory-sealed, unopened items
Customers looking to clear inventory are welcome to contact us for professional evaluations and transparent quotes.
Contact Mingjiada Electronics (Shenzhen) Co., Ltd.
Company Name: Shenzhen Mingjiada Electronics Co., Ltd.
Business Scope: LEOAC74PT-D in stock | Aerospace-grade component buyback | Full range of ST products
Contact Information: Please visit our official website (www.integrated-ic.com) or call us at (+86 13410018555) for inquiries regarding inventory and pricing.
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