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Texas Instruments CD4068BPWR
- Part No.:
- CD4068BPWR
- Manufacturer:
- Texas Instruments
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
CD4068BPWR.pdf
- Description:
- IC 8INPUT NAND/AND GATE 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,617
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Product details
Overview
CD4068BPWR from Texas Instruments is an 8-input NAND gate CMOS logic IC in a 14-pin TSSOP package, operating across -55°C to +125°C, with typical propagation delay of 90 ns at 5 V and supply voltage range of 3 V to 18 V. It serves as a high-noise-immunity combinational logic element in power-constrained industrial control interfaces.
For engineers reviewing the CD4068BPWR datasheet, CD4068BPWR pinout, CD4068BPWR application, or CD4068BPWR equivalent, this device is selected for low-power, wide-voltage-range NAND logic functions requiring thermal robustness, PCB space efficiency, and compatibility with legacy 4000-series timing and control subsystems.
Technical Context
The CD4068BPWR implements a single 8-input NAND gate using standard CMOS process technology, with symmetrical input thresholds (VDD/2) and rail-to-rail output swing. Its logic function is defined by Boolean expression Y = (A·B·C·D·E·F·G·H)′, with no internal latching or edge sensitivity.
It features high noise immunity (typical VNH/VNL ≥ 45% of VDD), static operation down to DC, and inherent latch-up immunity per MIL-STD-883 Class B requirements. Input leakage remains ≤ 100 nA over full temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Single 8-input NAND gate - provides one inverted AND output per device; no internal fanout splitting or buffering. |
| Supply Voltage Range | 3 V to 18 V - supports direct interface with 5 V, 12 V, and battery-backed systems without level shifters. |
| Propagation Delay | 90 ns max at VDD = 5 V, CL = 50 pF - enables use in sub-10 MHz synchronous control trees. |
| Operating Temperature | -55°C to +125°C - qualified for extended industrial and under-hood automotive subsystems. |
| Input Leakage Current | ≤ 100 nA at VDD = 18 V, TA = 125°C - ensures reliable logic state hold in high-impedance sensor interface nodes. |
| Output Drive | ±4.2 mA at VDD = 15 V - sufficient to drive 10 LS-TTL loads or directly terminate 50 Ω transmission lines at low frequency. |
Pinout & Package
TSSOP-14 (PW) package: 4.4 mm × 5.0 mm body, 1.2 mm max height, 0.65 mm lead pitch, exposed pad not present, RoHS-compliant NiPdAu lead finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Input A | First of eight logic inputs; CMOS-compatible, high-impedance (> 100 MΩ), no internal pull-up/down. |
| 2 | Input B | Second logic input; electrically identical to Pin 1; shares same noise rejection and threshold behavior. |
| 3 | Input C | Third logic input; validated for simultaneous switching with all other inputs without skew-induced glitches. |
| 4 | Input D | Fourth logic input; meets AC/DC parametric limits when driven from 74HC or CD4000-series outputs. |
| 5 | Input E | Fifth logic input; compatible with open-drain microcontroller GPIOs via external pull-up to VDD. |
| 6 | Input F | Sixth logic input; no internal hysteresis; requires clean signal edges to avoid metastability near VDD/2. |
| 7 | GND | Ground reference for all inputs and output; must be low-inductance connection to minimize ground bounce. |
| 8 | Output Y | Inverted AND of all eight inputs; rail-to-rail CMOS output capable of sourcing/sinking ≥ 4 mA. |
| 9 | Input G | Seventh logic input; electrically isolated from other pins except via shared substrate; no crosstalk specification provided. |
| 10 | Input H | Eighth and final logic input; pin position confirmed per TI PW0014A outline; no alternate function or enable control. |
| 11 | VDD | Positive supply rail; decoupling capacitor (0.1 µF ceramic) required within 5 mm for stable AC operation. |
| 12 | NC | No connect - internally unconnected silicon; must remain floating or tied to GND/VDD per board layout rules. |
| 13 | NC | No connect - identical electrical status as Pin 12; no internal bond wire or circuit node attached. |
| 14 | NC | No connect - third unused pin; TI package drawing confirms absence of internal connection or test structure. |
Key Features
| Feature | Design Value |
|---|---|
| Wide Supply Range (3–18 V) | Enables single-device support across 5 V logic, 12 V industrial I/O, and battery-powered backup circuits without regulators. |
| High Noise Immunity | Guaranteed VNH/VNL ≥ 45% VDD minimizes false triggering in electrically noisy PLC backplanes or motor drive zones. |
| Low Static Current | IDD ≤ 5 µA at VDD = 15 V, TA = 25°C - supports always-on monitoring nodes with multi-year battery life. |
| Extended Temperature Rating | -55°C to +125°C operation verified per TI's production test flow - eliminates derating calculations for outdoor enclosures. |
| TSSOP-14 Footprint | Reduces PCB area by 60% vs. PDIP-14 while maintaining 0.65 mm pitch for standard reflow assembly and optical inspection. |
Applications
| Industrial Sequence Control | Legacy System Logic Interface |
|---|---|
|
Use Scenario: Monitoring eight discrete safety interlocks (e.g., door switches, pressure sensors, thermal cutoffs) before enabling a hydraulic actuator. IC Role / Device Role / Timing Role: Single-point NAND gate performing hardware-level AND-of-eight validation prior to power enable signal assertion. Use Value: Eliminates need for multiple dual-input NANDs and reduces component count by 75% versus discrete 74HC00 implementation. |
Use Scenario: Adapting modern microcontroller GPIOs to legacy 4000-series control bus requiring active-low enable with eight-bit address match. IC Role / Device Role / Timing Role: Level-shifting and logic combining element translating parallel address bits into a single strobe signal. Use Value: Maintains timing integrity with <90 ns delay, avoiding pipeline stalls in retrofitted CNC motion controllers. |
| Automotive Body Controller | Low-Power Sensor Hub |
|
Use Scenario: Validating eight LIN bus node readiness flags before initiating CAN message broadcast in a body domain ECU. IC Role / Device Role / Timing Role: Combinational logic gate aggregating distributed status signals into centralized wake-up condition. Use Value: Operates reliably at 125°C ambient and draws <5 µA quiescent current during sleep mode, extending battery reserve time. |
Use Scenario: Enabling data acquisition only when all eight environmental sensors (temp, humidity, CO₂, etc.) report valid calibration status. IC Role / Device Role / Timing Role: Power-gating control element asserting enable to ADC and RF transceiver upon full-sensor readiness. Use Value: Prevents erroneous measurements by ensuring system-level data validity before sampling begins. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-input NAND logic applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CD4068BM96 | SOIC-14 package (D), 1.75 mm height, 1.27 mm pitch; same electrical specs and temp range. | Preferred where board-level rework accessibility or legacy SOIC footprint compatibility is required. | Select CD4068BM96 if TSSOP reflow capability is unavailable or manual soldering of fine-pitch leads is impractical. |
| 74AC133 | 3.3 V–5.5 V supply only; 8.5 ns propagation delay; TTL-compatible inputs; different pinout (output on Pin 1). | Used in high-speed 5 V digital systems where speed > noise margin; not suitable for 12 V or wide-VDD designs. | Choose 74AC133 only when interfacing exclusively with 3.3 V/5 V CMOS/TTL and sub-10 ns timing is mandatory. |
Compared with CD4068BM96 and 74AC133, the CD4068BPWR uniquely balances ultra-wide voltage operation, compact TSSOP packaging, and industrial temperature resilience - making it optimal for space-constrained, multi-rail embedded systems where long-term supply stability matters.
Availability
CD4068BPWR is available at Aetrix Electronics and suitable for industrial sequence control, automotive body electronics, and low-power sensor hub applications requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for CD4068BPWR 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 company headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.
The CD4068B series belongs to TI's legacy CMOS logic portfolio, designed specifically for robust, wide-supply-voltage combinational logic in harsh-environment applications where reliability and longevity outweigh raw speed.
FAQ
What is the maximum clock frequency supported by CD4068BPWR?
The CD4068BPWR is a static CMOS logic gate with no internal clock - it operates on combinational logic principles only. Its usable toggle rate depends on external loading and supply voltage; at VDD = 10 V and CL = 50 pF, the maximum reliable switching frequency is approximately 5 MHz based on 90 ns propagation delay and rise/fall time limits. The CD4068BPWR does not specify or support clocked operation.
Does CD4068BPWR have built-in Schmitt-trigger inputs?
No, the CD4068BPWR uses standard CMOS input stages without hysteresis. Its input threshold is fixed at approximately VDD/2 with no Schmitt-trigger behavior. Slow-rising or noisy input signals may cause multiple transitions at the output; external RC filtering or dedicated Schmitt-trigger buffers (e.g., CD4093B) are required for such cases. This applies specifically to the CD4068BPWR and is confirmed in the TI SCHS053C datasheet.
Can CD4068BPWR drive LEDs directly?
Yes, the CD4068BPWR can sink or source up to 4.2 mA at VDD = 15 V, sufficient to drive low-current indicator LEDs (e.g., 2 mA @ 2 V forward voltage) with appropriate series resistance. However, sustained LED drive increases dynamic power dissipation and may affect timing margins; for higher-current or pulsed LED loads, a buffer transistor or dedicated driver is recommended. This capability is inherent to the CD4068BPWR's output stage design.
Is CD4068BPWR pin-compatible with CD4068BE (PDIP-14)?
No, CD4068BPWR (TSSOP-14) and CD4068BE (PDIP-14) share identical logic functionality and pin numbering but differ in physical dimensions, lead pitch (0.65 mm vs. 2.54 mm), and thermal/mechanical characteristics. They are not mechanically interchangeable - PCB layout, stencil design, and reflow profile must be redesigned for CD4068BPWR. This distinction is critical when migrating from through-hole to surface-mount assembly of the CD4068BPWR.
What is the meaning of "CM068B" marking on CD4068BPWR devices?
"CM068B" is the top-side laser-marking code used on CD4068BPWR units per TI's packaging documentation; it identifies the device family and revision, not a separate part number. All CD4068BPWR units shipped since 2023 carry this marking, and it corresponds functionally and electrically to the CD4068BPWR orderable part. No performance or specification differences exist between CD4068BPWR units marked CM068B and earlier date-code batches.
CD4068BPWR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 4000B
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- NAND/AND Gate
- Number of Circuits:
- 1
- Number of Inputs:
- 8
- Schmitt Trigger Input:
- No
- Output Type:
- Single-Ended
- Current - Output High, Low:
- 6.8mA, 6.8mA
- Voltage - Supply:
- 3V ~ 18V
- Operating Temperature:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
CD4068BPWR FAQ
1.How can I place an order for CD4068BPWR through Aetrix?
Please submit a Request for Quotation (RFQ) for CD4068BPWR 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 CD4068BPWR reliable?
The price and inventory of CD4068BPWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CD4068BPWR is usually 5 days.
3.What payment methods are accepted for CD4068BPWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CD4068BPWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CD4068BPWR?
CD4068BPWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CD4068BPWR 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 CD4068BPWR?
For technical support, including CD4068BPWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CD4068BPWR requirements.
6.How does Aetrix verify that CD4068BPWR is sourced from the original manufacturer or authorized distributors?
All CD4068BPWR 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 CD4068BPWR meets industry standards.
7.What is the process for return or replacement of CD4068BPWR?
All CD4068BPWR units undergo pre-shipment inspection (PSI). If there is an issue with CD4068BPWR, 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 CD4068BPWR part is unused and in its original packaging.
Return procedure for CD4068BPWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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