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Texas Instruments CD74ACT253M96
- Part No.:
- CD74ACT253M96
- Manufacturer:
- Texas Instruments
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
CD74ACT253M96.pdf
- Description:
- IC MULTIPLEXER 2 X 4:1 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,997
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Product details
Overview
CD74ACT253M96 from Texas Instruments is a dual 4-input three-state multiplexer IC in SOIC-16 package, operating at 4.5V–5.5V supply, with 6.3ns typical propagation delay (VCC = 5V, CL = 50pF), ±24mA output drive, and SCR-latchup-resistant CMOS process - used for signal routing in digital logic systems such as data selectors in industrial control interfaces.
For engineers reviewing the CD74ACT253M96 datasheet, CD74ACT253M96 pinout, CD74ACT253M96 application, or CD74ACT253M96 equivalent, this page delivers verified functional role, timing behavior, drive capability, ESD robustness (2kV MIL-STD-883), and SOIC-16 package compatibility for rapid schematic integration and BOM validation.
Technical Context
The CD74ACT253M96 implements two independent 4:1 multiplexers sharing common S0/S1 select lines and individual three-state enable inputs (1OE/2OE). Its ACT-series logic ensures TTL-compatible input thresholds (VIH = 2V min, VIL = 0.8V max) and fast switching across -55°C to +125°C.
Each section routes one of four data inputs (nI0–nI3) to its output (nY) based on binary S0/S1 state; when nOE is HIGH, nY enters high-impedance mode. Propagation delays are balanced between select-to-output (5.7–20ns) and data-to-output (4.6–16.4ns) paths under worst-case AC conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 4.5V to 5.5V - ensures compatibility with 5V TTL and mixed-voltage logic systems without level-shifting. |
| Propagation Delay (S0/S1 → Y) | 5.7ns (min) to 20ns (max) at 5V - enables sub-50MHz clock-domain selection in synchronous digital designs. |
| Output Drive Current | ±24mA - directly drives 15 FAST™ ICs or 50Ω transmission lines, eliminating external buffers in point-to-point routing. |
| Input Thresholds | VIH ≥ 2V, VIL ≤ 0.8V - guarantees reliable interfacing with standard TTL outputs and noise margin >0.4V at 5V. |
| ESD Protection | ≥2kV per MIL-STD-883 Method 3015 - supports handling in non-ESD-controlled assembly environments. |
| Operating Temperature | -55°C to +125°C - qualified for aerospace, automotive under-hood, and industrial motor-control applications. |
| Three-State Leakage | ±5µA max (IOZ) - minimizes bus contention current during high-impedance states in shared-data-bus architectures. |
Pinout & Package
CD74ACT253M96 is housed in a 16-pin SOIC (Small Outline Integrated Circuit) package with standard JEDEC MS-012AC dimensions (width: 3.9mm, body length: 9.9mm), RoHS-compliant NiPdAu lead finish, and MSL Level-1 rating for unlimited reflow.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 15 | 1OE, 2OE | Active-low three-state enable inputs - assert LOW to enable respective multiplexer output; HIGH forces high-Z state. |
| 2, 5, 6, 7 | 1I0–1I3 | Data inputs for first multiplexer - selected by S0/S1 to route to 1Y (pin 3). |
| 10, 11, 12, 13 | 2I0–2I3 | Data inputs for second multiplexer - selected by same S0/S1 to route to 2Y (pin 14). |
| 3, 14 | 1Y, 2Y | Three-state outputs - reflect selected input when OE is LOW; high-Z otherwise. |
| 4, 9 | S1, S0 | Common binary select lines - determine which of four inputs passes through to each output (00→I0, 01→I1, etc.). |
| 8 | GND | Ground reference for all logic and power domains - must be low-impedance connection to minimize switching noise. |
| 16 | VCC | Positive supply rail - decoupling capacitor (0.1µF ceramic) required within 1cm of pin for stable high-speed operation. |
Key Features
| Feature | Design Value |
|---|---|
| Buffered Inputs | Reduces capacitive loading on upstream drivers and improves noise immunity across temperature extremes. |
| SCR-Latchup Resistant Process | Prevents destructive latch-up events during transient overvoltage or hot-swap conditions in industrial backplanes. |
| Balanced Propagation Delays | Ensures deterministic timing between select and data paths - critical for glitch-free multiplexing in synchronous state machines. |
| 1.5V to 5.5V Operation (AC variant only) | Not applicable to CD74ACT253M96 - this ACT variant is strictly 4.5V–5.5V; AC variants support wider range but differ in threshold and speed. |
| TTL-Compatible Input Levels | Accepts standard 5V TTL outputs directly without interface logic - simplifies integration with legacy controller peripherals. |
Applications
| Industrial PLC I/O Expansion | Digital Test Equipment Signal Routing |
|---|---|
|
Use Scenario: Multiplexing analog-to-digital converter (ADC) channel selection signals in modular I/O racks with multiple sensor inputs. IC Role / Device Role / Timing Role: Dual 4:1 selector routing address/control bits from microcontroller to ADC channel banks, synchronized to system clock edge. Use Value: Enables single microcontroller to manage up to eight discrete ADC channels using only two GPIO pins for S0/S1 and four for data enables - reducing MCU pin count and PCB routing complexity. |
Use Scenario: Dynamic reconfiguration of stimulus/sense paths in automated test equipment (ATE) for semiconductor wafer probing. IC Role / Device Role / Timing Role: Three-state multiplexer isolating DUT signal paths during calibration cycles, preventing cross-talk between test fixtures. Use Value: ±24mA drive and <20ns propagation delay allow precise timing alignment of test vectors with sub-25ns resolution, meeting IEEE 1149.1 boundary-scan timing budgets. |
| Automotive Body Control Module | Communications Protocol Translator |
|
Use Scenario: Consolidating diagnostic LED driver enable signals from multiple ECUs onto shared CAN/LIN status bus lines. IC Role / Device Role / Timing Role: Data selector routing ECU-specific fault indicators to centralized dashboard display controller via shared GPIO bus. Use Value: -55°C to +125°C qualification and 2kV ESD protection ensure reliable operation in under-hood environments with high thermal cycling and electrical noise. |
Use Scenario: Adapting UART data streams between 3.3V microcontrollers and 5V legacy RS-232 transceivers in gateway modules. IC Role / Device Role / Timing Role: Logic-level translator enabling bidirectional signal routing while maintaining voltage domain isolation via three-state control. Use Value: TTL-compatible inputs accept 3.3V logic highs (>2V), and 5V-tolerant outputs drive RS-232 line drivers directly - eliminating discrete level-shifters and saving board space. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual 4-input multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74ACT253N | PDIP-16 package, identical electrical specs and pinout - same ACT logic family, same 4.5–5.5V range and ±24mA drive. | No surface-mount capability; requires through-hole PCB layout and wave soldering - unsuitable for high-density or automated SMT lines. | Select SN74ACT253N only when legacy through-hole assembly or prototyping on breadboard/perfboard is required. |
| CD74AC253M96 | AC-series variant: wider 1.5–5.5V supply range, lower VIH/VIL thresholds (1.2V/0.3V at 1.5V), slower max delay (25ns at 5V), same SOIC-16 footprint. | Supports battery-powered or mixed-supply systems down to 1.5V but lacks TTL input compatibility - not drop-in replaceable in 5V-only TTL environments. | Choose CD74AC253M96 only when supply voltage flexibility or ultra-low-power standby (ICC = 8µA typ) outweighs need for TTL-level noise margin. |
Compared with SN74ACT253N and CD74AC253M96, CD74ACT253M96 uniquely combines SOIC-16 SMT compatibility, strict TTL input compatibility, and guaranteed -55°C to +125°C operation - making it optimal for high-reliability, space-constrained industrial and automotive control boards where pinout and timing consistency are critical.
Availability
CD74ACT253M96 is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, automotive body control modules, digital test equipment signal routing, and communications protocol translation requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for CD74ACT253M96 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 logic families including the 74ACT series.
The CD74ACT253M96 belongs to TI's 74ACT advanced CMOS logic product line, designed specifically for high-speed, low-noise, TTL-compatible digital signal routing in mission-critical industrial, automotive, and aerospace systems.
FAQ
What is the maximum operating frequency supported by CD74ACT253M96?
The CD74ACT253M96 does not specify a maximum clock frequency directly, but its worst-case propagation delay (20ns) and output enable/disable times (11.5–12.6ns) imply reliable operation up to approximately 25MHz in synchronous multiplexing applications. For higher-frequency use, designers must verify setup/hold timing margins against their specific controller's output characteristics and trace delays.
Does CD74ACT253M96 support 3.3V logic inputs?
No - CD74ACT253M96 is an ACT-series device with TTL-compatible input thresholds (VIH ≥ 2V, VIL ≤ 0.8V at VCC = 5V), meaning it requires ≥2V for a valid HIGH. A 3.3V logic HIGH meets this, but marginal 3.3V outputs near 2.0V may fail. For guaranteed 3.3V compatibility, use AC-series variants like CD74AC253M96 instead.
Can CD74ACT253M96 be used in place of CD74AC253M96?
No - CD74ACT253M96 and CD74AC253M96 are not interchangeable without circuit review. The ACT version requires 4.5–5.5V supply and has TTL input thresholds; the AC version operates from 1.5–5.5V with CMOS thresholds. Swapping them risks input undervoltage failure or incorrect logic interpretation in mixed-supply systems.
What is the thermal resistance (θJA) of CD74ACT253M96 in SOIC package?
The datasheet does not publish θJA for CD74ACT253M96 in SOIC (D) package - only generic notes indicate "θJA (°C/W) SOIC Package ___". Designers should refer to TI's SOIC-16 thermal models (e.g., SLMA002) or perform board-level thermal simulation using the device's 107pF power dissipation capacitance (CPD) and actual switching frequency to estimate junction temperature rise.
Is CD74ACT253M96 pin-compatible with SN74LS253?
No - although both are dual 4-input multiplexers, CD74ACT253M96 (SOIC-16) and SN74LS253 (PDIP-16 or SOIC-16) share identical pinout numbering and function mapping (per TI's 74ACT253 and 74LS253 pin diagrams), but LS logic has different DC characteristics (e.g., lower drive, higher ICC, no three-state outputs). Direct replacement requires verifying voltage levels, fanout, and enable logic polarity in the target design.
CD74ACT253M96 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74ACT
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Multiplexer
- Circuit:
- 2 x 4:1
- Independent Circuits:
- 1
- Current - Output High, Low:
- 75mA, 75mA
- Voltage Supply Source:
- Single Supply
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
CD74ACT253M96 FAQ
1.How can I place an order for CD74ACT253M96 through Aetrix?
Please submit a Request for Quotation (RFQ) for CD74ACT253M96 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 CD74ACT253M96 reliable?
The price and inventory of CD74ACT253M96 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CD74ACT253M96 is usually 5 days.
3.What payment methods are accepted for CD74ACT253M96?
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Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CD74ACT253M96?
CD74ACT253M96 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CD74ACT253M96 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 CD74ACT253M96?
For technical support, including CD74ACT253M96 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CD74ACT253M96 requirements.
6.How does Aetrix verify that CD74ACT253M96 is sourced from the original manufacturer or authorized distributors?
All CD74ACT253M96 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 CD74ACT253M96 meets industry standards.
7.What is the process for return or replacement of CD74ACT253M96?
All CD74ACT253M96 units undergo pre-shipment inspection (PSI). If there is an issue with CD74ACT253M96, 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 CD74ACT253M96 part is unused and in its original packaging.
Return procedure for CD74ACT253M96:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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