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Nexperia USA Inc. 74HCT163D,652
- Part No.:
- 74HCT163D,652
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Counters, Dividers
- Package:
- -
- Datasheet:
-
74HCT163D,652.pdf
- Description:
- NEXPERIA 74HCT163D - BINARY COUN
- Quantity:
- Payment:
- Shipping:
Inventory:10,030
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Product details
Overview
74HCT163D,652 from Nexperia is a TTL-level-compatible, synchronous presettable 4-bit binary counter with internal look-ahead carry, synchronous reset, and dual count-enable inputs (CEP/CET). It operates from 4.5 V to 5.5 V, delivers glitch-free counting up to 45 MHz at VCC = 4.5 V, and supports cascading for n-bit counters in industrial timing and control logic systems.
For engineers reviewing the 74HCT163D,652 datasheet, 74HCT163D,652 pinout, 74HCT163D,652 application, or 74HCT163D,652 equivalent, this device is selected for synchronous modulus counters requiring precise edge-triggered load/reset, deterministic terminal count pulse generation, and robust noise immunity in mixed-logic environments.
Technical Context
The 74HCT163D,652 implements four positive-edge-triggered D-type flip-flops with synchronous parallel load and synchronous master reset. Its look-ahead carry architecture enables predictable TC propagation (29–49 ns) independent of counter state, simplifying multi-stage ripple-free cascading.
Counting requires both CEP and CET high; TC asserts only when CET = HIGH and Q0–Q3 = HHHH. Input thresholds comply with TTL levels (VIH = 2.0 V min, VIL = 0.8 V max), ensuring interoperability with legacy 5 V logic families without level shifters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Family | 74HCT - TTL-compatible input thresholds, CMOS output drive |
| Counter Width | 4-bit binary - supports modulo-2⁴ = 16 counting with programmable preset |
| Max Clock Frequency | 45 MHz at VCC = 4.5 V - enables high-speed timing in PLC I/O modules and encoder interfaces |
| Propagation Delay (CP→Qn) | 23–39 ns - ensures tight setup/hold margins in synchronous state machines |
| Terminal Count Pulse Width | ≈ Q0 HIGH duration - provides clean, single-cycle enable signal for next-stage cascade |
| Operating Temperature | -40 °C to +125 °C - qualified for under-hood automotive and industrial motor control |
| Supply Voltage Range | 4.5 V to 5.5 V - matches standard 5 V rail with ±10 % tolerance margin |
Pinout & Package
74HCT163D,652 is housed in a plastic small outline package (SO16, SOT109-1) with 16 leads, 3.9 mm body width, and gull-wing leads for surface-mount assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 MR | Synchronous master reset | Active-LOW; resets Q0–Q3 on next CP rising edge - enables precise zero-synchronous initialization |
| 2 CP | Clock input | Positive-edge triggered; all flip-flops update simultaneously - eliminates ripple delay and glitches |
| 3–6 D0–D3 | Parallel data inputs | Load values into counter on CP edge when PE = LOW - supports dynamic modulus reconfiguration |
| 7 CEP | Count enable (parallel) | Enables counting only when HIGH - used with CET to gate clock action and prevent spurious increments |
| 8 GND | Ground reference | 0 V return path for all internal logic and output drivers |
| 9 PE | Parallel enable | Active-LOW; enables synchronous load of D0–D3 - decouples load control from count enable logic |
| 10 CET | Count enable carry | Enables TC output and feeds forward to next stage - critical for serial cascading without external gating |
| 11–14 Q3–Q0 | Flip-flop outputs | Q0 LSB to Q3 MSB; true binary order - supports direct connection to bus or decode logic |
| 15 TC | Terminal count output | HIGH only when CET = HIGH and Q0–Q3 = 1111 - provides self-timed cascade enable with fixed pulse width |
| 16 VCC | Supply voltage | +4.5 V to +5.5 V - powers internal logic and output buffers; bypass capacitor required |
Key Features
| Feature | Design Value |
|---|---|
| Synchronous reset | Eliminates race conditions during zero-init; no external debounce or asynchronous cleanup needed |
| Look-ahead carry | Reduces inter-stage propagation uncertainty - enables reliable >100 MHz cascaded counter chains |
| TTL-compatible inputs | Accepts standard 5 V logic thresholds (VIH ≥ 2.0 V, VIL ≤ 0.8 V) - interoperable with 74LS, 74F, and microcontroller GPIO |
| Glitch-free outputs | No output spikes during parallel load or reset transitions - safe for direct connection to sensitive analog or clock distribution circuits |
| ESD protection | HBM > 2000 V, MM > 200 V - withstands handling and board-level ESD events in automated assembly |
Applications
| Industrial PLC Timer Modules | Motor Encoder Position Tracking |
|---|---|
|
Use Scenario: Precise 16-step sequence control in conveyor belt logic with real-time reset on fault detection. IC Role / Device Role / Timing Role: Synchronous 4-bit counter generating step index and terminal pulse for next-stage sequencing. Use Value: Synchronous reset ensures deterministic restart after emergency stop; TC pulse triggers next module without metastability risk. |
Use Scenario: Quadrature decoder output counting for 16-pulse-per-revolution motor feedback. IC Role / Device Role / Timing Role: Binary counter accumulating encoder pulses; preset used to initialize position offset. Use Value: Parallel load allows dynamic zero-point calibration; look-ahead carry maintains timing integrity across multi-turn counts. |
| Automotive Body Control Unit (BCU) | Digital Panel Meter Multiplexing |
|
Use Scenario: Window lift timeout counter with thermal derating logic and fail-safe reset. IC Role / Device Role / Timing Role: Modulo-12 counter tracking motor run time; MR tied to watchdog timer output. Use Value: -40 °C to +125 °C rating ensures operation in engine bay; TTL inputs interface directly with MCU GPIO. |
Use Scenario: 7-segment display multiplexing controller cycling through 4-digit LED segments. IC Role / Device Role / Timing Role: 4-bit counter driving segment select lines; TC enables digit latch and refresh cycle. Use Value: Glitch-free outputs prevent phantom digit activation; low ICC (≤160 μA) minimizes power in battery-powered meters. |
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 |
|---|---|---|---|
| 74HC163D,653 | CMOS input thresholds (VIH = 3.15 V min); higher noise margin but incompatible with 3.3 V TTL outputs | Requires level-shifting when interfacing with legacy 5 V TTL sources; unsuitable for mixed-voltage backplanes | Select only if system uses pure CMOS logic or has dedicated 3.3 V/5 V translators |
| SN74LS163N | Bipolar TTL process; higher ICC (40 mA typical), slower max frequency (30 MHz), no look-ahead carry | Higher power draw and thermal load; requires external AND gate for TC generation in cascaded designs | Choose only for legacy LS-only systems where pin compatibility and board reuse outweigh efficiency penalties |
Compared with 74HC163D,653 and SN74LS163N, the 74HCT163D,652 uniquely balances TTL interoperability, low power, and integrated look-ahead carry-making it optimal for new designs requiring robust 5 V logic integration without redesign overhead.
Availability
74HCT163D,652 is available at Aetrix Electronics and suitable for industrial PLC timer modules, motor encoder position tracking, automotive body control units, and digital panel meter multiplexing requiring stable component supply across extended temperature ranges.
Supply support for 74HCT163D,652 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 logic, discrete, and MOSFET solutions optimized for efficiency, reliability, and manufacturability in high-volume applications.
The 74HCT163D,652 belongs to Nexperia's 74HCT logic family, engineered for seamless interoperability between TTL and CMOS systems while maintaining low power consumption and industrial-grade temperature resilience.
FAQ
Can 74HCT163D,652 operate at 3.3 V?
No. The 74HCT163D,652 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 states, increased propagation delay, and potential failure to meet timing specs.
What is the function of the CEP and CET pins together?
Both CEP (count enable parallel) and CET (count enable carry) must be HIGH for the counter to increment on the CP rising edge. CET additionally enables the TC output and feeds forward to the next cascaded stage. CEP alone does not affect TC - only CET controls terminal count assertion and carry propagation.
How does synchronous reset differ from asynchronous reset in practice?
Synchronous reset (MR) only takes effect on the next CP rising edge, ensuring all flip-flops reset simultaneously and eliminating metastability or partial-state glitches. Asynchronous reset would clear outputs immediately, risking race conditions in multi-stage counters and violating setup/hold timing in downstream logic.
Is external pull-up required on the TC output?
No. TC is an active-HIGH push-pull output capable of sinking 4.0 mA and sourcing 0.4 mA at VCC = 4.5 V. It drives standard CMOS/TTL loads directly. Pull-ups are unnecessary unless interfacing with open-drain buses or specific voltage-level translation requirements.
74HCT163D,652 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Logic Type:
- -
- Direction:
- -
- Number of Elements:
- -
- Number of Bits per Element:
- -
- Reset:
- -
- Timing:
- -
- Count Rate:
- -
- Trigger Type:
- -
- Voltage - Supply:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
74HCT163D,652 FAQ
1.How can I place an order for 74HCT163D,652 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HCT163D,652 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 74HCT163D,652 reliable?
The price and inventory of 74HCT163D,652 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HCT163D,652 is usually 5 days.
3.What payment methods are accepted for 74HCT163D,652?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HCT163D,652 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HCT163D,652?
74HCT163D,652 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HCT163D,652 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 74HCT163D,652?
For technical support, including 74HCT163D,652 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HCT163D,652 requirements.
6.How does Aetrix verify that 74HCT163D,652 is sourced from the original manufacturer or authorized distributors?
All 74HCT163D,652 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 74HCT163D,652 meets industry standards.
7.What is the process for return or replacement of 74HCT163D,652?
All 74HCT163D,652 units undergo pre-shipment inspection (PSI). If there is an issue with 74HCT163D,652, 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 74HCT163D,652 part is unused and in its original packaging.
Return procedure for 74HCT163D,652:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74HCT163D,652 Tags
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74HC393BQ,115
Nexperia USA Inc.
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SN74LV163ADR
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SN74HC393DR
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