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Texas Instruments CD74AC153E
- Part No.:
- CD74AC153E
- Manufacturer:
- Texas Instruments
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 16-DIP (0.300", 7.62mm)
- Datasheet:
-
CD74AC153E.pdf
- Description:
- IC MULTIPLEXER 2 X 4:1 16DIP
- Quantity:
- Payment:
- Shipping:
Inventory:398
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Product details
Overview
CD74AC153E from Texas Instruments is a dual 4-line to 1-line data selector/multiplexer in 16-pin PDIP packaging, operating across 1.5 V to 5.5 V supply, delivering ±24 mA output drive, balanced propagation delays, and SCR-latchup-resistant CMOS logic for digital signal routing in industrial control panels.
For engineers reviewing the CD74AC153E datasheet, CD74AC153E pinout, CD74AC153E application, or CD74AC153E equivalent, this device supports dual independent channel selection with active-low strobes, binary address decoding (A/B), and robust ESD protection-key for legacy-compatible logic upgrades and mixed-voltage interface design.
Technical Context
The CD74AC153E implements two independent 4:1 multiplexer sections sharing common address inputs A and B, each with dedicated active-low strobe (1G/2G) enabling asynchronous channel gating. Each section decodes binary inputs to select one of four data inputs (C0–C3) onto its output (1Y/2Y).
It uses a CMOS process with balanced rise/fall times, operates over −55°C to +125°C, and features full rail-to-rail input/output voltage compatibility (VI = 0 to VCC, VO = 0 to VCC), supporting interoperability with TTL, LVTTL, and other AC-family logic without level-shifting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.5 V to 5.5 V - enables direct interfacing with 1.8 V, 3.3 V, and 5 V logic domains without external regulators |
| Output Drive Current | ±24 mA at VCC = 4.5–5.5 V - drives up to 15 F-series logic loads or directly interfaces with small-signal LEDs or buffers |
| Propagation Delay (VCC = 5 V) | 3.0–11.8 ns - ensures sub-10 ns critical-path timing for high-speed address/data switching in real-time controllers |
| Input Voltage Thresholds | VIH = 3.85 V, VIL = 1.65 V at VCC = 5.5 V - provides 0.65 V noise margin against TTL-compatible signals |
| ESD Protection | ±2000 V HBM - meets MIL-STD-883 Class 3015 requirements for handling in non-EPA environments |
| Operating Temperature | −55°C to +125°C - qualified for aerospace, automotive under-hood, and industrial motor drive applications |
| Power Dissipation Capacitance | 93 pF - enables accurate dynamic power estimation (P = Cpd × V² × f) for thermal budgeting |
Pinout & Package
CD74AC153E is supplied in a 16-pin plastic dual in-line package (PDIP-N), body size 19.3 mm × 6.35 mm, with through-hole mounting and industry-standard 0.3-inch row spacing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1G | Channel 1 strobe input | Active-low enable: 1Y outputs selected data only when 1G = LOW; HIGH forces 1Y = HIGH-Z |
| B | Address select bit (MSB) | Binary MSB for both channels; combined with A forms 2-bit select code (00–11) for C0–C3 |
| 1C3–1C0 | Channel 1 data inputs | Four parallel data sources for first multiplexer; routed to 1Y based on A/B state |
| 1Y | Channel 1 data output | Single-ended CMOS output reflecting selected 1Cn input when 1G = LOW |
| GND | Ground reference | Primary return path for all internal logic and output current; must be low-impedance |
| 2Y | Channel 2 data output | Independent output mirroring 1Y behavior; shares A/B but uses separate 2G and 2Cn inputs |
| 2C0–2C3 | Channel 2 data inputs | Second set of four inputs; functionally identical to 1C0–1C3 but electrically isolated |
| A | Address select bit (LSB) | Binary LSB shared by both channels; determines least-significant bit of 2-bit decode |
| 2G | Channel 2 strobe input | Active-low enable for second multiplexer; independent control allows time-multiplexed or gated dual-channel operation |
| VCC | Positive supply | Single 1.5–5.5 V rail powers both sections; requires local 0.1 µF bypass capacitor per TI layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent 4:1 multiplexers | Enables simultaneous routing of two separate 4-input data streams using shared address lines-reduces PCB routing complexity vs. discrete solutions |
| 1.5 V to 5.5 V wide-supply operation | Eliminates need for level shifters in mixed-voltage systems (e.g., 3.3 V microcontroller controlling 5 V peripheral buses) |
| ±24 mA output drive | Sustains fanout to 15 F-series devices or drives moderate capacitive loads (<50 pF) without external buffers |
| SCR-latchup-resistant CMOS process | Prevents destructive latch-up during transient overvoltage or hot-insertion events in industrial backplanes |
| Balanced propagation delays | Ensures matched tPLH/tPHL across all input-to-output paths-critical for glitch-free address/data alignment in synchronous designs |
Applications
| Industrial PLC I/O Expansion | Legacy Microcontroller Bus Multiplexing |
|---|---|
Use Scenario: Adding analog sensor inputs to an aging 8-bit microcontroller with limited GPIO and no built-in ADC mux. IC Role / Device Role / Timing Role: CD74AC153E selects one of four sensor signals (e.g., temperature, pressure, humidity, flow) onto a shared ADC input line under software-controlled A/B address bits. Use Value: Enables 4× analog channel expansion using only 2 GPIO pins and 1 ADC channel-no firmware changes needed beyond address sequencing. |
Use Scenario: Sharing a single UART TX/RX pair between multiple peripherals (e.g., GPS, BLE module, debug console) on a resource-constrained MCU. IC Role / Device Role / Timing Role: CD74AC153E routes MCU TX to one selected peripheral while routing that peripheral's RX back to MCU RX-configured via A/B/G control. Use Value: Reduces pin count by 6 versus discrete switches; maintains full-duplex capability with <12 ns max skew between channels. |
| Automotive Body Control Module | Test Equipment Signal Routing |
Use Scenario: Consolidating status signals (door open, trunk latch, hood switch, seatbelt buckle) into a single diagnostic bus in a BCM. IC Role / Device Role / Timing Role: CD74AC153E scans four mechanical switch inputs sequentially under microcontroller strobe control (1G/2G), outputting status to a shared LIN transceiver. Use Value: Replaces discrete diode-OR networks; eliminates contact bounce coupling and provides clean, debounced digital levels at 125°C ambient. |
Use Scenario: Automated test fixture routing DUT signals (power, clock, data, reset) between multiple instrument channels (oscilloscope, logic analyzer, power supply). IC Role / Device Role / Timing Role: CD74AC153E acts as a manual or firmware-controlled signal switch matrix-A/B selects source, G enables output, Y delivers routed signal. Use Value: Supports reconfigurable test setups without hardware rewiring; ±24 mA drive ensures signal integrity across 1 m cables at 10 MHz. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual 4:1 multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74AC153N | Same AC logic family, identical pinout and electrical specs; manufactured by TI with identical PDIP-16 packaging and −55°C to +125°C rating | No functional difference; used interchangeably in legacy designs where part marking differs by prefix only | Select SN74AC153N if sourcing from distributors listing it as active and cost-advantaged; CD74AC153E remains preferred for military-grade traceability |
| 74LV153N | Lower 1.2–5.5 V supply range; 12 mA output drive; 10 ns typical delay at 3.3 V; not SCR-latchup resistant | Not suitable for −55°C operation or high-noise industrial environments; lacks MIL-STD-883 ESD rating | Choose 74LV153N only for cost-sensitive consumer applications below 85°C with tight board space-requires redesign for voltage margins and ESD hardening |
Compared with SN74AC153N and 74LV153N, CD74AC153E offers guaranteed operation down to −55°C, higher output drive for legacy load compatibility, and certified SCR-latchup immunity-making it the sole choice for aerospace, defense, and extended-temperature industrial deployments.
Availability
CD74AC153E is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, automotive body control modules, and test equipment signal routing requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for CD74AC153E 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 ICs, with decades of heritage in high-reliability logic families and industrial-grade qualification.
CD74AC153E belongs to TI's CD74AC logic series-designed specifically for demanding applications requiring wide supply voltage tolerance, high noise immunity, and extended temperature operation without performance degradation.
FAQ
What is the maximum operating temperature for CD74AC153E?
The CD74AC153E is rated for continuous operation from −55°C to +125°C, verified per TI's recommended operating conditions and thermal characterization data. This specification applies to the PDIP package (N) and is validated across all supply voltages (1.5 V to 5.5 V). The device maintains full functionality-including propagation delay, output drive, and logic thresholds-within this full range, making CD74AC153E suitable for under-hood automotive and industrial control cabinet applications.
Does CD74AC153E support 1.8 V logic systems?
Yes, CD74AC153E fully supports 1.8 V logic systems: its minimum supply voltage is 1.5 V, and VIH/VIL thresholds scale proportionally (e.g., VIH = 1.2 V at VCC = 1.5 V). At 1.8 V supply, CD74AC153E delivers guaranteed tPLH/tPHL ≤ 227 ns and ±24 mA drive capability, enabling direct interface with 1.8 V microcontrollers and FPGAs without level translation. This makes CD74AC153E ideal for battery-powered instrumentation and low-power edge nodes.
Can unused inputs on CD74AC153E be left floating?
No-TI explicitly requires all unused inputs on CD74AC153E to be tied to VCC or GND to prevent undefined logic states and potential increased ICC. Floating inputs cause CMOS inputs to drift near the switching threshold, resulting in high current draw, oscillation, and erratic output behavior. For example, unused address inputs A or B must be pulled to GND (for '0') or VCC (for '1'); unused data inputs (C0–C3) should be grounded to minimize noise coupling. This requirement is documented in TI application report SCBA004.
Is CD74AC153E pin-compatible with CD54AC153F3A?
Yes-CD74AC153E (PDIP-N) and CD54AC153F3A (CDIP-J) share identical 16-pin dual in-line footprints, pin numbering, and pin functions, including 1G, B, 1C3–1C0, 1Y, GND, 2Y, 2C0–2C3, A, 2G, and VCC. Both comply with JEDEC MS-001 and have matching 0.3-inch row spacing. However, CD54AC153F3A is military-qualified (QML-38535), while CD74AC153E is commercial/industrial grade-so mechanical fit is identical, but reliability screening differs.
What is the purpose of the thermal pad in WQFN-packaged variants, and does CD74AC153E have one?
WQFN-packaged variants (e.g., CD74AC153BQBR) include an exposed thermal pad to improve heat dissipation and mechanical stability-but CD74AC153E uses a PDIP package with no thermal pad. The PDIP variant relies on lead-frame conduction and PCB copper area for thermal management. Its RθJA is 67°C/W (per datasheet Table 4.4), meaning junction temperature rise is predictable under steady-state loads; no thermal pad connection or soldering is required or possible for CD74AC153E.
CD74AC153E Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74AC
- Package/Case:
- 16-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Active
- Type:
- Multiplexer
- Circuit:
- 2 x 4:1
- Independent Circuits:
- 1
- Current - Output High, Low:
- 24mA, 24mA
- Voltage Supply Source:
- Single Supply
- Voltage - Supply:
- 1.5V ~ 5.5V
- Operating Temperature:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 16-PDIP
CD74AC153E FAQ
1.How can I place an order for CD74AC153E through Aetrix?
Please submit a Request for Quotation (RFQ) for CD74AC153E 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 CD74AC153E reliable?
The price and inventory of CD74AC153E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CD74AC153E is usually 5 days.
3.What payment methods are accepted for CD74AC153E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CD74AC153E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CD74AC153E?
CD74AC153E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CD74AC153E 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 CD74AC153E?
For technical support, including CD74AC153E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CD74AC153E requirements.
6.How does Aetrix verify that CD74AC153E is sourced from the original manufacturer or authorized distributors?
All CD74AC153E 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 CD74AC153E meets industry standards.
7.What is the process for return or replacement of CD74AC153E?
All CD74AC153E units undergo pre-shipment inspection (PSI). If there is an issue with CD74AC153E, 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 CD74AC153E part is unused and in its original packaging.
Return procedure for CD74AC153E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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