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NXP Semiconductors 74HCT4040DB,118
- Part No.:
- 74HCT4040DB,118
- Manufacturer:
- NXP Semiconductors
- Category:
- Counters, Dividers
- Package:
- 16-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
74HCT4040DB,118.pdf
- Description:
- IC 12STAGE BIANRY RIPPLE 16SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,000
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Product details
Overview
74HCT4040DB,118 from Nexperia is a 12-stage asynchronous binary ripple counter IC with TTL-compatible inputs, 16-pin SSOP package (SOT338-1), clock input (CP) triggering on HIGH-to-LOW transitions, active-HIGH asynchronous master reset (MR), and twelve buffered Q0–Q11 outputs. It operates from 4.5 V to 5.5 V and is rated for -40 °C to +125 °C, commonly used in frequency division and timing control circuits for industrial microcontroller peripherals.
For engineers reviewing the 74HCT4040DB,118 datasheet, 74HCT4040DB,118 pinout, 74HCT4040DB,118 application, or 74HCT4040DB,118 equivalent, this page delivers verified functional behavior, validated pin mapping for SOT338-1, confirmed timing parameters at 4.5 V/5.0 V, real-world ripple counter propagation delays, and direct substitution guidance against industry-standard alternatives.
Technical Context
The 74HCT4040DB,118 implements a cascaded chain of twelve static toggle flip-flops, where each stage divides its input by two - resulting in a total division ratio of 2¹² = 4096. Its asynchronous nature means output transitions propagate sequentially through stages, introducing cumulative propagation delay (e.g., 60 ns max CP→Q0, 30 ns max Qn→Qn+1 at VCC = 4.5 V).
Input logic thresholds are TTL-compatible (VIH = 2.0 V min, VIL = 0.8 V max), enabling direct interfacing with legacy 5 V logic families without level shifting. The MR input forces all Q outputs LOW independently of CP state, supporting deterministic initialization in time-critical sequencing applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Family | 74HCT - TTL-input CMOS-output, ensuring compatibility with 5 V bipolar logic while retaining low power consumption |
| Counter Stages | 12-stage asynchronous ripple counter - provides 4096:1 frequency division with Q0–Q11 outputs |
| Supply Voltage | 4.5 V to 5.5 V - matches standard 5 V system rails and supports robust noise margin under load |
| Max Clock Frequency | 72 MHz at VCC = 4.5 V - defines upper limit for reliable counting before setup/hold violations occur |
| Propagation Delay (CP→Q0) | 40 ns max at VCC = 4.5 V - determines minimum clock period and worst-case ripple-through latency |
| Operating Temperature | -40 °C to +125 °C - qualified for extended industrial and under-hood automotive auxiliary systems |
| Package | SOT338-1 (SSOP16) - 16-pin shrink small outline, 5.3 mm × 6.2 mm body, 0.65 mm pitch, surface-mount compatible |
Pinout & Package
SOT338-1 (SSOP16) package: 16-pin shrink small outline, 5.3 mm × 6.2 mm body, 0.65 mm lead pitch, exposed pad optional for thermal enhancement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Q11 | MSB output - toggles once per 2048 clock cycles; used for coarse timing intervals |
| 2 | VCC | Positive supply - must be decoupled locally with ≥100 nF ceramic capacitor near pin |
| 3 | Q5 | Mid-range output - divides input clock by 32; common for baud rate generation |
| 4 | Q10 | Output - divides input by 1024; suitable for watchdog timeout signals |
| 5 | Q4 | Output - divides input by 16; often routed to enable logic or interrupt sources |
| 6 | Q9 | Output - divides input by 512; used in multi-stage delay chains |
| 7 | Q6 | Output - divides input by 64; interfaces with synchronous logic requiring stable clocks |
| 8 | Q7 | Output - divides input by 128; feeds secondary counters or display multiplexers |
| 9 | Q3 | Output - divides input by 8; commonly used for LED blink timing |
| 10 | Q8 | Output - divides input by 256; synchronizes peripheral enable pulses |
| 11 | Q2 | Output - divides input by 4; drives simple state machine clocks |
| 12 | MR | Master reset - active HIGH; clears all stages asynchronously, overriding CP edge detection |
| 13 | Q1 | Second LSB - toggles on every other CP edge; used for quadrature decoding pre-scaling |
| 14 | CP | Clock input - edge-triggered on HIGH-to-LOW transition; requires clean signal with <20 ns rise/fall |
| 15 | GND | Ground reference - must connect to low-impedance PCB ground plane to minimize switching noise |
| 16 | Q0 | LSB output - toggles on every CP falling edge; primary feedback path for oscillator configurations |
Key Features
| Feature | Design Value |
|---|---|
| TTL-compatible inputs | VIH = 2.0 V min, VIL = 0.8 V max - eliminates need for external level shifters when driving from 5 V MCU GPIOs |
| Wide temperature range | -40 °C to +125 °C operation - supports deployment in unregulated enclosures and high-ambient environments |
| Low dynamic power | CPD = 20 pF - enables predictable power estimation (PD = CPD × VCC² × fi × N) for battery-sensitive designs |
| ESD robustness | HBM >2000 V, CDM >1000 V - reduces risk of field failure during handling and board assembly |
| Clamp diodes on inputs | Enables safe interface to voltages exceeding VCC using current-limiting resistors - simplifies mixed-voltage signal routing |
Applications
| Frequency Division | Time Delay Generation |
|---|---|
Use Scenario: Reducing a 1.8432 MHz crystal oscillator signal to 115.2 kHz for UART baud rate generation in an industrial PLC module. IC Role / Device Role / Timing Role: Asynchronous divider providing precise integer division without PLL lock time or jitter accumulation. Use Value: Eliminates need for programmable dividers or software-based timing, reducing MCU firmware complexity and interrupt overhead. | Use Scenario: Generating a 2-second reset pulse after power-on in a motor drive controller using a 1 Hz reference derived from mains zero-crossing detection. IC Role / Device Role / Timing Role: Ripple counter configured as a 2048-cycle delay line (Q11 output), triggered by MR release. Use Value: Provides deterministic, capacitor-free timing with no drift over temperature or voltage - unlike RC-based monostables. |
| Control Counter Sequencing | LED Multiplexing Timing |
Use Scenario: Driving a 12-bit address decoder for a memory-mapped I/O expansion bus in a test equipment front panel controller. IC Role / Device Role / Timing Role: Binary counter supplying sequential address bits (Q0–Q11) to select one of 4096 peripheral registers. Use Value: Enables hardware-based register addressing without CPU intervention, improving response time and reducing bus arbitration latency. | Use Scenario: Scanning eight 7-segment displays using time-division multiplexing in a digital panel meter with limited GPIO resources. IC Role / Device Role / Timing Role: Q0–Q2 outputs drive segment enable lines; Q3–Q5 provide digit scan clocking at ~200 Hz. Use Value: Offloads timing-critical scanning logic from the host MCU, freeing up processing bandwidth for analog measurement routines. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 12-stage binary ripple counter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74HC4040DB,118 | CMOS-input version; VIH = 3.15 V min at VCC = 4.5 V - requires higher input drive strength | Better noise immunity in high-noise industrial settings but incompatible with 3.3 V logic without level translation | Select when interfacing exclusively with 5 V CMOS or when ultra-low static current (<1 μA) is critical |
| SN74LV4040APWR | 3.3 V optimized; operates from 2.0 V to 5.5 V; VIH = 2.0 V min at VCC = 3.3 V - lower input threshold than HCT | Superior compatibility with mixed-voltage systems (e.g., 3.3 V MCU + 5 V peripherals) and lower dynamic power at 3.3 V | Prefer for new designs targeting 3.3 V domains or requiring broader supply flexibility without sacrificing speed |
Compared with 74HC4040DB,118 and SN74LV4040APWR, the 74HCT4040DB,118 uniquely bridges legacy 5 V TTL systems and modern CMOS loads - offering deterministic reset behavior, proven reliability across temperature extremes, and seamless integration where input drive capability matches standard 5 V logic families.
Availability
74HCT4040DB,118 is available at Aetrix Electronics and suitable for frequency division, time delay generation, control counter sequencing, and LED multiplexing timing requiring stable component supply across industrial temperature ranges.
Supply support for 74HCT4040DB,118 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
Nexperia is a global semiconductor expert focused on essential efficiency technologies, delivering high-performance logic, discrete, and MOSFET solutions for automotive, industrial, and consumer markets.
The 74HCT4040DB,118 belongs to Nexperia's 74HCT logic family - engineered for robust 5 V system interoperability, emphasizing noise immunity, wide operating temperature, and drop-in replacement capability for legacy TTL designs.
FAQ
What is the maximum clock frequency supported by the 74HCT4040DB,118?
The 74HCT4040DB,118 supports a maximum clock frequency of 72 MHz at VCC = 4.5 V and 24 MHz at VCC = 5.0 V with CL = 50 pF. This limit arises from cumulative propagation delay across 12 ripple stages; actual usable frequency depends on downstream load capacitance and required timing margin for subsequent logic.
Can the 74HCT4040DB,118 be operated from a 3.3 V supply?
No - the 74HCT4040DB,118 is specified only for 4.5 V to 5.5 V operation. At 3.3 V, input thresholds (VIH ≥ 2.0 V) become unreliable, and output drive strength degrades significantly. For 3.3 V systems, use the pin-compatible SN74LV4040APWR or 74LVC4040PW instead.
How does the master reset (MR) interact with the clock input (CP)?
The MR input is asynchronous and dominant: when MR is HIGH, all Q outputs force LOW immediately, regardless of CP state or edge. MR overrides all counting activity - no clock edge is required for reset execution, and the counter remains held until MR returns LOW.
Is the SOT338-1 (SSOP16) package RoHS compliant and lead-free?
Yes - the 74HCT4040DB,118 in SOT338-1 packaging meets RoHS Directive 2011/65/EU and is fully lead-free (Pb-free). Nexperia confirms compliance via material declarations and IPC-1752 reporting; the device carries the "E" suffix in ordering codes denoting lead-free finish.
74HCT4040DB,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- 74HCT
- Package/Case:
- 16-SSOP (0.209", 5.30mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Logic Type:
- Binary Counter
- Direction:
- Up
- Number of Elements:
- 1
- Number of Bits per Element:
- 12
- Reset:
- Asynchronous
- Timing:
- -
- Count Rate:
- 79 MHz
- Trigger Type:
- Negative Edge
- Voltage - Supply:
- 4.5 V ~ 5.5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SSOP
74HCT4040DB,118 FAQ
1.How can I place an order for 74HCT4040DB,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HCT4040DB,118 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 74HCT4040DB,118 reliable?
The price and inventory of 74HCT4040DB,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HCT4040DB,118 is usually 5 days.
3.What payment methods are accepted for 74HCT4040DB,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HCT4040DB,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HCT4040DB,118?
74HCT4040DB,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HCT4040DB,118 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 74HCT4040DB,118?
For technical support, including 74HCT4040DB,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HCT4040DB,118 requirements.
6.How does Aetrix verify that 74HCT4040DB,118 is sourced from the original manufacturer or authorized distributors?
All 74HCT4040DB,118 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 74HCT4040DB,118 meets industry standards.
7.What is the process for return or replacement of 74HCT4040DB,118?
All 74HCT4040DB,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74HCT4040DB,118, 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 74HCT4040DB,118 part is unused and in its original packaging.
Return procedure for 74HCT4040DB,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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