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Texas Instruments SN74AHC74MPWREP
- Part No.:
- SN74AHC74MPWREP
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
SN74AHC74MPWREP.pdf
- Description:
- IC FF D-TYPE DUAL 1BIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SN74AHC74MPWREP from Texas Instruments is a dual positive-edge-triggered D-type flip-flop with independent asynchronous clear (CLR) and preset (PRE) inputs, operating across 2 V to 5.5 V supply voltage, rated for –55°C to 125°C extended temperature range, and packaged in a 14-pin TSSOP (PW). It delivers 170 MHz maximum clock frequency at 5 V and supports robust latch-up immunity (>250 mA) and ESD protection (>2000 V HBM), enabling use in aerospace data-handling circuits requiring radiation-tolerant logic sequencing.
For engineers reviewing the SN74AHC74MPWREP datasheet, SN74AHC74MPWREP pinout, SN74AHC74MPWREP application, or SN74AHC74MPWREP equivalent, this page provides verified functional specifications, validated pin assignments, confirmed military-qualified alternatives, and design-meaningful timing parameters for high-reliability digital control systems.
Technical Context
This device implements two independent edge-triggered D flip-flops in a single monolithic EPIC™ (Enhanced-Performance Implanted CMOS) silicon die, each with fully asynchronous active-low CLR and PRE inputs that override clock and data signals. The flip-flops operate synchronously on the rising edge of CLK only when both PRE and CLR are high, with setup/hold times as low as 3 ns (at 5 V) and propagation delays down to 4.6 ns (tPLH, CLK→Q).
It complies with JEDEC JESD17 latch-up testing and MIL-STD-883 Method 3015 ESD requirements, and its controlled baseline manufacturing ensures consistent parametric performance across assembly/test/fabrication sites-critical for space-grade and defense electronics where component pedigree and traceability are mandated.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2 V to 5.5 V - Enables direct interface with 2.5 V, 3.3 V, and 5 V logic families without level-shifting. |
| Operating Temperature | –55°C to 125°C - Qualified per JEDEC/industry standards including HAST, temperature cycling, and bond intermetallic life for mission-critical environments. |
| Max Clock Frequency | 170 MHz at VCC = 5 V, CL = 15 pF - Supports high-speed state-machine clocking in real-time avionics sequencers. |
| Propagation Delay | 4.6 ns (tPLH, CLK→Q, VCC = 5 V) - Enables sub-5 ns timing margins in tightly constrained synchronous control paths. |
| Output Drive Strength | ±8 mA at VCC = 5 V - Sufficient to drive four standard CMOS loads (fan-out of 10) without signal degradation. |
| Latch-Up Immunity | >250 mA per JESD17 - Prevents destructive latch-up during power-rail transients in harsh electrical environments. |
| ESD Protection | >2000 V HBM, >200 V MM - Ensures handling survivability and board-level robustness in uncontrolled assembly settings. |
Pinout & Package
SN74AHC74MPWREP is housed in a 14-pin Thin Shrink Small-Outline Package (TSSOP-PW), 4.4 mm wide, 5.0 mm long, 1.2 mm height, with 0.65 mm lead pitch and gull-wing terminations compatible with standard reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 6, 7 | 1CLR, 1D, 1CLK, 1PRE, 1Q, 1Q̅, GND | First flip-flop control, data, clock, preset, true/complement outputs, and ground reference - enables independent reset/set and clocked storage. |
| 8, 9, 10, 11, 12, 13, 14 | VCC, 2CLR, 2D, 2CLK, 2PRE, 2Q, 2Q̅ | Power rail, second flip-flop control, data, clock, preset, and true/complement outputs - allows dual-channel synchronous sampling or pipeline staging. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent D flip-flops | Enables compact implementation of 2-bit registers, toggle dividers, or synchronized dual-signal capture without external gating. |
| Asynchronous active-low PRE/CLR | Allows immediate forced state initialization or reset regardless of clock phase-critical for system startup and fault recovery. |
| EPIC™ CMOS process | Delivers low static current (ICC ≤ 20 µA), high noise immunity, and stable operation over full military temperature range. |
| Controlled baseline manufacturing | Guarantees single-source fabrication and test, eliminating cross-site parametric variation for qualification-critical programs. |
| Extended reliability qualification | Includes biased 85/85, autoclave, electromigration, and mold compound life testing-required for DoD and NASA Class K/Q parts. |
Applications
| Aerospace Telemetry Sequencing | Defense Radar Pulse Timing |
|---|---|
|
Use Scenario: Synchronizing telemetry packet framing clocks with spacecraft bus timing while maintaining deterministic reset upon command loss. IC Role / Device Role / Timing Role: Dual D flip-flop acting as edge-aligned register and asynchronous reset latch for telemetry frame counter and sync-word detector. Use Value: Sub-5 ns propagation delay and –55°C to 125°C operation ensure deterministic timing alignment across orbital thermal cycles and radiation-induced transients. |
Use Scenario: Generating precise, jitter-controlled trigger pulses for phased-array radar transmit/receive switching under rapid mode changes. IC Role / Device Role / Timing Role: Dual flip-flop configured as master-slave pulse stretcher and edge-aligned gate controller for RF front-end switches. Use Value: 170 MHz max clock rate and <3 ns setup time enable nanosecond-accurate pulse positioning required for beamforming coherence. |
| Satellite Onboard Computer Reset Logic | Military Vehicle Health Monitoring |
|
Use Scenario: Implementing watchdog-triggered safe-mode entry by capturing processor reset status and holding it across power-cycle boundaries. IC Role / Device Role / Timing Role: Dual flip-flop used as nonvolatile state latch and asynchronous reset arbiter between multiple subsystem watchdogs. Use Value: Asynchronous PRE/CLR inputs allow immediate assertion of safe-mode state independent of CPU clock domain or failure mode. |
Use Scenario: Capturing and holding fault flags from engine sensors during transient brownouts in armored vehicle electronic control units. IC Role / Device Role / Timing Role: Dual D flip-flop storing diagnostic bits from CAN-connected sensors and presenting them to microcontroller via parallel interface. Use Value: Latch-up immunity >250 mA and ESD >2000 V prevent corruption during 24 V automotive load-dump events and EMI exposure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual D-type flip-flop applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74AHC74MDREP | Same logic function and electrical specs, but in SOIC-14 (D) package with 86°C/W θJA vs. 113°C/W for PW. | Better thermal performance in convection-cooled boards; larger footprint limits high-density layouts. | Select when board-level thermal management favors SOIC or legacy footprint compatibility is required. |
| SN54AHC74 | QML-qualified military version with identical AC/DC specs, extended screening (e.g., burn-in, lot acceptance tests), and tighter parametric limits. | Required for DoD contracts mandating QML-38534 compliance; not suitable for commercial cost-sensitive designs. | Select when formal military qualification documentation and enhanced reliability screening are contractually mandated. |
Compared with SN74AHC74MPWREP, SN74AHC74MDREP offers lower thermal resistance but larger PCB area, while SN54AHC74 adds QML-38534 certification and screening at higher cost-making SN74AHC74MPWREP optimal for space-constrained, high-reliability commercial-aerospace applications where TSSOP fit and extended temp are primary drivers.
Availability
SN74AHC74MPWREP is available at Aetrix Electronics and suitable for aerospace telemetry sequencing, defense radar pulse timing, satellite onboard computer reset logic, military vehicle health monitoring, and other applications requiring stable component supply across extended temperature and long-lifecycle programs.
Supply support for SN74AHC74MPWREP includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and logic solutions, with decades of heritage in high-reliability aerospace and defense components.
The SN74AHC74-EP product line delivers enhanced-performance, extended-temperature logic devices using TI's proprietary EPIC™ CMOS process, designed specifically for mission-critical systems where parametric stability, manufacturing pedigree, and environmental resilience are non-negotiable.
FAQ
What is the qualified temperature range for SN74AHC74MPWREP?
The SN74AHC74MPWREP is qualified for continuous operation from –55°C to 125°C, with full parametric validation across this range per JEDEC and industry standards-including HAST, temperature cycling, and electromigration testing. This makes SN74AHC74MPWREP suitable for deployment in stratospheric payloads, engine-mounted controllers, and other environments where ambient extremes exceed commercial grade limits.
Does SN74AHC74MPWREP support 2.5-V logic interfacing?
Yes, SN74AHC74MPWREP operates reliably from 2 V to 5.5 V, and its input thresholds scale with VCC-VIH = 1.5 V (min) and VIL = 0.5 V (max) at VCC = 2 V. This ensures clean recognition of 2.5 V logic levels without external biasing, and its output VOH/VOL remain rail-compatible, enabling seamless integration into mixed-voltage systems with 2.5 V FPGAs or ASICs.
Is SN74AHC74MPWREP pin-compatible with standard SN74AHC74 variants?
SN74AHC74MPWREP shares identical pinout and logic functionality with all SN74AHC74-EP variants, including SN74AHC74MDREP (SOIC) and SN54AHC74 (military SOIC). The 14-pin TSSOP (PW) footprint matches the mechanical pin assignment-1CLR through 2Q̅-but PCB layout must account for different package dimensions and thermal pad requirements versus SOIC.
What is the maximum clock frequency supported by SN74AHC74MPWREP at 3.3 V?
At VCC = 3.3 V ± 0.3 V and CL = 15 pF, SN74AHC74MPWREP supports a maximum clock frequency of 125 MHz, with typical propagation delay of 6.7 ns (tPLH, CLK→Q). This is validated across the full –55°C to 125°C range, making SN74AHC74MPWREP appropriate for high-speed serial link framing and FPGA I/O synchronization in 3.3 V domains.
How does the EPIC™ process benefit SN74AHC74MPWREP in harsh environments?
The EPIC™ (Enhanced-Performance Implanted CMOS) process used in SN74AHC74MPWREP delivers superior latch-up immunity (>250 mA), reduced parametric drift over temperature, and enhanced radiation tolerance compared to standard CMOS. These attributes directly improve field reliability in high-vibration, high-EMI, or ionizing-radiation environments-such as launch vehicle avionics or nuclear instrumentation-where latent failures must be minimized.
SN74AHC74MPWREP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74AHC
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Set(Preset) and Reset
- Type:
- D-Type
- Output Type:
- Complementary
- Number of Elements:
- 2
- Number of Bits per Element:
- 1
- Clock Frequency:
- 115 MHz
- Max Propagation Delay @ V, Max CL:
- 9.3ns @ 5V, 50pF
- Trigger Type:
- Positive Edge
- Current - Output High, Low:
- 8mA, 8mA
- Voltage - Supply:
- 2V ~ 5.5V
- Current - Quiescent (Iq):
- 2 µA
- Input Capacitance:
- 2 pF
- Operating Temperature:
- -55°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
SN74AHC74MPWREP FAQ
1.How can I place an order for SN74AHC74MPWREP through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74AHC74MPWREP on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for SN74AHC74MPWREP reliable?
The price and inventory of SN74AHC74MPWREP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74AHC74MPWREP is usually 5 days.
3.What payment methods are accepted for SN74AHC74MPWREP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74AHC74MPWREP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74AHC74MPWREP?
SN74AHC74MPWREP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74AHC74MPWREP order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for SN74AHC74MPWREP?
For technical support, including SN74AHC74MPWREP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74AHC74MPWREP requirements.
6.How does Aetrix verify that SN74AHC74MPWREP is sourced from the original manufacturer or authorized distributors?
All SN74AHC74MPWREP products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SN74AHC74MPWREP meets industry standards.
7.What is the process for return or replacement of SN74AHC74MPWREP?
All SN74AHC74MPWREP units undergo pre-shipment inspection (PSI). If there is an issue with SN74AHC74MPWREP, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The SN74AHC74MPWREP part is unused and in its original packaging.
Return procedure for SN74AHC74MPWREP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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