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Nexperia USA Inc. 74HCT163PW,112
- Part No.:
- 74HCT163PW,112
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Counters, Dividers
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
74HCT163PW,112.pdf
- Description:
- IC BINARY COUNTER 4-BIT 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,753
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Product details
Overview
74HCT163PW,112 from Nexperia is a TTL-level-compatible, synchronous presettable 4-bit binary counter with internal look-ahead carry, synchronous reset (active LOW), parallel load capability, and dual count-enable inputs (CEP/CET) for cascading. It operates from 4.5 V to 5.5 V, delivers glitch-free counting up to 45 MHz at VCC = 4.5 V, and is qualified for industrial temperature range (−40 °C to +125 °C). Used in digital timing control, address generation, and modulo-N counter design.
For engineers reviewing the 74HCT163PW,112 datasheet, 74HCT163PW,112 pinout, 74HCT163PW,112 application, or 74HCT163PW,112 equivalent, key selection considerations include synchronous reset behavior, TTL input compatibility, terminal count (TC) pulse timing, propagation delay (CP to Qn: 23–59 ns), and TSSOP16 package thermal performance in high-density PCB layouts.
Technical Context
This device implements four edge-triggered D-type flip-flops with synchronous clocking on the positive-going edge of CP. Counting occurs only when both CEP and CET are HIGH; TC asserts HIGH only at terminal count (1111) while CET is HIGH, enabling seamless n-bit cascading via feed-forward carry logic.
The synchronous master reset (MR) clears all outputs (Q0–Q3) to LOW on the next CP edge regardless of PE, CEP, or CET states. Parallel load is enabled by active-LOW PE, allowing immediate loading of D0–D3 values independent of count enable status - critical for programmable modulus counters and state initialization.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Family | 74HCT - TTL-compatible input thresholds (VIH = 2.0 V min, VIL = 0.8 V max @ VCC = 4.5–5.5 V) |
| Supply Voltage Range | 4.5 V to 5.5 V - ensures interoperability with 5 V TTL systems and stable operation across industrial voltage tolerances |
| Max Clock Frequency | 45 MHz @ VCC = 4.5 V - supports high-speed digital control loops and fast address sequencing |
| CP to Qn Propagation Delay | 23–59 ns - determines minimum clock period in synchronous counter chains and timing margin for downstream logic |
| Terminal Count Pulse Width | ≈ Q0 HIGH duration - provides precise, predictable carry signal for cascaded stages without external pulse shaping |
| Operating Temperature | −40 °C to +125 °C - validated for under-hood automotive, industrial PLC, and extended-range embedded applications |
| Package | TSSOP16 (SOT403-1), 4.4 mm body width - enables high-density routing and improved thermal dissipation vs. SO16 |
Pinout & Package
TSSOP16 plastic thin shrink small outline package (SOT403-1), 16-pin, 0.65 mm pitch, 4.4 mm body width, exposed pad not present, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 MR | Synchronous master reset input | Active-LOW; resets Q0–Q3 to 0000 on next CP rising edge - enables deterministic state recovery without ripple delay |
| 2 CP | Clock input | Positive-edge triggered; synchronizes all flip-flops and load operations - eliminates race conditions in multi-stage counters |
| 3–6 D0–D3 | Parallel data inputs | Load values into counter on CP edge when PE = LOW - supports dynamic modulus reconfiguration and address preloading |
| 7 CEP | Count enable parallel input | Enables counting only when HIGH; used with CET to gate count action - allows hierarchical enable/disable control |
| 8 GND | Ground reference | 0 V return path for all internal logic and I/O - requires low-impedance PCB plane for noise immunity |
| 9 PE | Parallel enable input | Active-LOW; forces parallel load regardless of CEP/CET state - decouples loading from counting control logic |
| 10 CET | Count enable carry input | Enables TC output and permits counting when HIGH - feeds forward to next stage's CEP for serial cascade |
| 11–14 Q3–Q0 | Counter output bits | Q0 LSB to Q3 MSB; synchronous, glitch-free outputs - suitable for direct connection to bus interfaces or decode logic |
| 15 TC | Terminal count output | HIGH only at 1111 when CET = HIGH - provides clean carry pulse for next-stage enable without external gating |
| 16 VCC | Supply voltage | +4.5 V to +5.5 V power rail - must be decoupled locally with 100 nF ceramic capacitor near pin |
Key Features
| Feature | Design Value |
|---|---|
| Synchronous reset | Eliminates ripple-through delay during clear; enables single-gate modulus adjustment (e.g., mod-5, mod-11) without asynchronous hazards |
| Look-ahead carry | Reduces propagation delay in cascaded counters by feeding TC directly to next stage's CEP - avoids cumulative timing penalties |
| TTL-compatible inputs | Accepts standard 5 V TTL logic levels (VIH ≥ 2.0 V, VIL ≤ 0.8 V), ensuring plug-and-play integration with legacy microcontrollers and FPGAs |
| Clamp diodes on all inputs | Permits safe interfacing to voltages exceeding VCC using current-limiting resistors - simplifies level-shifting in mixed-voltage systems |
| ESD protection | HBM > 2000 V, MM > 200 V - enhances robustness during board assembly and field handling in industrial environments |
Applications
| Modulo-N Counter Design | Digital Timing Control |
|---|---|
|
Use Scenario: Implementing a mod-12 counter for real-time clock division in an industrial HMI controller. IC Role / Device Role / Timing Role: Primary synchronous counter generating 1 Hz from 4.096 kHz crystal-derived clock via divide-by-4096 chain. Use Value: Synchronous reset and glitch-free outputs ensure zero-jitter transitions at rollover, preventing display flicker or command misalignment. |
Use Scenario: Generating scan-line timing signals for a 128×64 monochrome OLED display driven by an ARM Cortex-M0+ MCU. IC Role / Device Role / Timing Role: Horizontal address counter stepping through column addresses (0–127) with terminal count triggering row increment. Use Value: TC pulse width matched to Q0 period enables reliable, self-synchronizing row advancement without software overhead or interrupt latency. |
| Programmable Address Generator | Industrial Sequence Controller |
|
Use Scenario: Configurable memory-mapped I/O address decoder in a modular PLC backplane supporting up to 16 peripheral slots. IC Role / Device Role / Timing Role: Presettable counter loaded via D0–D3 to select active slot address; PE controlled by configuration register bit. Use Value: Parallel load capability allows dynamic reassignment of active I/O module address in <100 ns - faster than SPI-based alternatives. |
Use Scenario: State sequencing engine for a 16-step packaging machine motion controller using discrete sensors and solenoids. IC Role / Device Role / Timing Role: Binary counter driving combinational logic that activates step-specific outputs; MR tied to emergency stop signal. Use Value: Synchronous reset guarantees immediate, deterministic return to step 0 upon fault - critical for safety-critical motion halting. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous 4-bit binary counter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74HC163PW,112 | CMOS input thresholds (VIH = 3.15 V min @ VCC = 4.5 V); higher noise margin but incompatible with pure TTL drive | Preferred where supply is stable 5 V and upstream logic is CMOS or mixed-signal; lower static current (ICC = 8 μA typ) | Select when system uses CMOS-compatible drivers and ultra-low quiescent power is prioritized over TTL interoperability. |
| SN74LS163N | Bipolar TTL technology; VIH = 2.0 V, VIL = 0.8 V same as 74HCT, but higher ICC (30 mA max), slower fmax (30 MHz), and obsolete through-hole only (PDIP16) | Limited to legacy designs requiring pin-for-pin LS compatibility; unsuitable for high-density or thermally constrained boards | Only consider for repair of vintage equipment; avoid for new designs due to obsolescence, power, and package limitations. |
Compared with 74HC163PW,112, the 74HCT163PW,112 offers guaranteed TTL input compatibility at the cost of slightly higher dynamic power, while SN74LS163N trades modern packaging and efficiency for legacy pinout and bipolar speed-power trade-offs - making the HCT variant optimal for new 5 V mixed-logic systems.
Availability
74HCT163PW,112 is available at Aetrix Electronics and suitable for industrial automation controllers, automotive body electronics modules, and medical diagnostic timing subsystems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74HCT163PW,112 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 delivering high-performance, reliable logic, analog, and MOSFET solutions optimized for efficiency, miniaturization, and robustness in demanding applications.
The 74HCT163 belongs to Nexperia's industry-standard 74-series logic family, engineered for seamless interoperability with legacy TTL systems while delivering CMOS-level power efficiency and modern packaging - targeting industrial control, automotive sub-systems, and consumer electronics timing functions.
FAQ
Can 74HCT163PW,112 operate at 3.3 V?
No. The 74HCT163PW,112 is specified only for VCC = 4.5 V to 5.5 V. Its TTL-compatible inputs require minimum VIH = 2.0 V, but internal circuitry is not characterized below 4.5 V. Attempting 3.3 V operation risks undefined logic states, reduced noise margin, and failure to meet timing specifications - use 74LVC163 or 74AUP1G163 for 3.3 V systems.
What is the minimum pulse width required on the MR pin?
The MR pin requires a minimum LOW pulse width of 20 ns at VCC = 4.5 V to guarantee reliable reset assertion. This value is derived from the maximum tW specification for MR-to-CP setup (20 ns) in the dynamic characteristics table. Shorter pulses may fail to propagate through internal synchronizers, resulting in metastability or incomplete reset of Q0–Q3.
How does the TC output behave during parallel load?
During parallel load (PE = LOW), the TC output remains LOW regardless of counter state or CET level. TC only goes HIGH when the counter reaches 1111 (15) *and* CET = HIGH *during normal counting mode* (PE = HIGH, CEP = CET = HIGH). This isolation prevents false carry assertions during reconfiguration.
Is the TSSOP16 package (SOT403-1) lead-free and RoHS compliant?
Yes. The 74HCT163PW,112 uses a lead-free, RoHS-compliant TSSOP16 package (SOT403-1) with matte tin (Sn) termination. Nexperia confirms full compliance with Directive 2011/65/EU and exemptions per Annex III, with homogeneous material analysis verifying Pb content < 0.1 wt% across all solderable surfaces and internal metallization.
74HCT163PW,112 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HCT
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Logic Type:
- Binary Counter
- Direction:
- Up
- Number of Elements:
- 1
- Number of Bits per Element:
- 4
- Reset:
- Synchronous
- Timing:
- Synchronous
- Count Rate:
- 45 MHz
- Trigger Type:
- Positive 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-TSSOP
74HCT163PW,112 FAQ
1.How can I place an order for 74HCT163PW,112 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HCT163PW,112 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 74HCT163PW,112 reliable?
The price and inventory of 74HCT163PW,112 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HCT163PW,112 is usually 5 days.
3.What payment methods are accepted for 74HCT163PW,112?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HCT163PW,112 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HCT163PW,112?
74HCT163PW,112 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HCT163PW,112 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 74HCT163PW,112?
For technical support, including 74HCT163PW,112 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HCT163PW,112 requirements.
6.How does Aetrix verify that 74HCT163PW,112 is sourced from the original manufacturer or authorized distributors?
All 74HCT163PW,112 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 74HCT163PW,112 meets industry standards.
7.What is the process for return or replacement of 74HCT163PW,112?
All 74HCT163PW,112 units undergo pre-shipment inspection (PSI). If there is an issue with 74HCT163PW,112, 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 74HCT163PW,112 part is unused and in its original packaging.
Return procedure for 74HCT163PW,112:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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