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NXP Semiconductors 74HC163D,652
- Part No.:
- 74HC163D,652
- Manufacturer:
- NXP Semiconductors
- Category:
- Counters, Dividers
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
74HC163D,652.pdf
- Description:
- IC SYNC 4BIT BINAR COUNT 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:17,300
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Product details
Overview
74HC163D,652 from Nexperia is a synchronous 4-bit binary counter with parallel load, synchronous reset, and look-ahead carry-designed for precise digital timing and state sequencing in TTL- and CMOS-compatible logic systems. It operates from 2.0 V to 6.0 V, delivers up to 55 MHz maximum clock frequency at VCC = 6.0 V, features 16-pin SO16 (SOT109-1) packaging, and supports cascading via CEP/CET/TC signals for multi-stage counting.
For engineers reviewing the 74HC163D,652 datasheet, 74HC163D,652 pinout, 74HC163D,652 application, or 74HC163D,652 equivalent, this device is selected for deterministic modulo-N counter design, glitch-free synchronous reset in state machines, clock-domain synchronization, and serial/parallel data sequencing where predictable edge-triggered behavior and low propagation delay (<31 ns CP→Qn at 6 V) are critical.
Technical Context
The 74HC163D,652 implements four edge-triggered D-type flip-flops with synchronous preset and reset, enabling deterministic state loading on the rising edge of CP regardless of CE or PE levels. Its internal look-ahead carry logic generates TC only when CET = HIGH and Q0–Q3 = HHHH, allowing clean ripple-carry extension without race conditions.
Count enable is dual-gated (CEP and CET both HIGH required), and terminal count pulse width matches Q0's HIGH duration-enabling direct feed-forward to next stage. Inputs include clamp diodes for overvoltage tolerance, and all timing parameters (e.g., tsu = 5 ns min, th = 0 ns, tpd = 16–31 ns) are specified across -40 °C to +125 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Family | 74HC high-speed CMOS - compatible with 2.0–6.0 V supply and TTL-level inputs when used as 74HCT variant. |
| Function | Synchronous 4-bit binary counter with parallel load, synchronous reset, and look-ahead carry output (TC). |
| Max Clock Frequency | 55 MHz at VCC = 6.0 V - enables high-speed counting in real-time control and communication timing circuits. |
| Propagation Delay | 16 ns (CP→Qn) at VCC = 6.0 V - ensures tight timing margins in multi-stage synchronous counters. |
| Operating Temperature | -40 °C to +125 °C - qualified for automotive under-hood and industrial motor-control environments. |
| Package | SO16 (SOT109-1), 3.9 mm body width - surface-mount compatible with standard reflow profiles and IPC-7351B land patterns. |
| Input Clamp Diodes | Integrated - permits safe interfacing to voltages exceeding VCC using current-limiting resistors. |
Pinout & Package
74HC163D,652 is housed in a plastic small outline package (SO16, SOT109-1) with 16 leads, 1.27 mm pitch, and 3.9 mm body width. Pin 1 is marked by a notch or dot; pin numbering follows standard IC convention (counterclockwise from top-left corner).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 MR | Synchronous master reset (active LOW) | Resets Q0–Q3 to LOW on next CP rising edge-no race condition; enables clean state initialization. |
| 2 CP | Clock input (LOW-to-HIGH edge triggered) | Drives all four flip-flops simultaneously-ensures zero skew between bit transitions. |
| 3–6 D0–D3 | Parallel data inputs | Loaded into Q0–Q3 when PE = LOW and CP rises-supports arbitrary modulus presetting. |
| 7 CEP | Count enable parallel input | Must be HIGH with CET to permit counting; enables hierarchical enable control in cascaded systems. |
| 8 GND | Ground reference (0 V) | Return path for all internal logic and I/O-requires low-impedance PCB plane connection. |
| 9 PE | Parallel enable (active LOW) | Activates parallel load regardless of CE states-decouples preset control from count gating. |
| 10 CET | Count enable carry input | Enables TC generation and feeds forward to next stage; allows modular n-bit counter construction. |
| 11–14 Q3–Q0 | Flip-flop outputs (Q3 MSB, Q0 LSB) | Binary count state; Q0 toggles on every CP, Q3 toggles every 8th CP-used for decode and feedback. |
| 15 TC | Terminal count output | HIGH only when CET = HIGH and Q0–Q3 = HHHH; pulse width ≈ Q0 HIGH time-ideal for ripple carry. |
| 16 VCC | Supply voltage (2.0–6.0 V) | Power rail for all logic-requires local 100 nF ceramic decoupling adjacent to pin 16. |
Key Features
| Feature | Design Value |
|---|---|
| Synchronous reset | Eliminates metastability and glitches during state clearing-critical for FSM reliability and test-mode entry. |
| Look-ahead carry (TC) | Reduces inter-stage propagation delay in multi-counter chains-enables >100 MHz system-level counting with minimal external logic. |
| Dual count enable (CEP + CET) | Allows independent control of local counting vs. carry propagation-supports gated clock trees and power-aware sequencing. |
| Clamp diode protected inputs | Permits safe interface to 5 V or 3.3 V buses even when VCC = 2.0 V-reduces need for level-shifting components. |
| JEDEC 7A compliance | Guarantees interoperability with legacy 74-series logic families and standardized PCB footprint reuse. |
Applications
| Modulo-N Counter Design | Digital Timing Generator |
|---|---|
|
Use Scenario: Building a custom 12-state sequence controller for stepper motor phase sequencing in HVAC blower modules. IC Role / Device Role / Timing Role: Primary 4-bit counter with synchronous reset and parallel load-configured to count 0–11 then reset via NAND feedback to MR. Use Value: Glitch-free reset ensures no spurious phase transitions; TC output directly enables next-stage logic without added debounce circuitry. |
Use Scenario: Generating precise 100 kHz, 25% duty-cycle clock enable signal from a 4 MHz system oscillator in an LED dimming subsystem. IC Role / Device Role / Timing Role: Divide-by-40 counter using Q3/Q2/Q1/Q0 outputs decoded to assert enable every 40 cycles. Use Value: Deterministic edge alignment (all outputs synchronized to CP) eliminates jitter accumulation across multiple enable domains. |
| State Machine Initialization | Cascaded Counter System |
|
Use Scenario: Initializing a 16-bit address counter in a microcontroller-based data logger before starting ADC sampling bursts. IC Role / Device Role / Timing Role: Dual 74HC163D units cascaded; first loaded with start address (e.g., 0x1000), second with page offset (0x00). Use Value: Parallel load on CP edge ensures atomic address setup-no partial-word corruption during startup. |
Use Scenario: Constructing a 24-bit event counter for industrial PLC pulse monitoring across three sensor channels. IC Role / Device Role / Timing Role: Three 74HC163D devices chained via TC→CET; each stage increments on overflow of prior stage. Use Value: Look-ahead carry reduces worst-case propagation delay by 40% vs. ripple-carry-maintains <10 ns timing uncertainty at 20 MHz input rate. |
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 |
|---|---|---|---|
| 74HCT163D,652 | TTL-compatible input thresholds (VIH = 2.0 V min); identical pinout, timing, and function. | Better noise immunity in mixed-signal boards with 5 V microcontrollers; slightly higher ICC at 125 °C. | Select when interfacing directly to legacy 5 V TTL or MCU GPIOs without level shifters. |
| SN74LS163N | Bipolar TTL technology; 4.75–5.25 V only; slower (max 30 MHz), higher power (ICC = 34 mA), larger SOIC-16 footprint. | Limited to 5 V-only systems; unsuitable for battery-powered or wide-temp designs. | Use only for drop-in replacement in legacy LS-based designs where power and speed are secondary. |
Compared with 74HCT163D,652, the 74HC163D,652 offers wider supply range and lower static power but requires CMOS-level drive; versus SN74LS163N, it provides 2× speed, 10× lower ICC, and extended temperature support-making it superior for new industrial and automotive designs.
Availability
74HC163D,652 is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, programmable logic sequencing, and embedded timing applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74HC163D,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, reliable logic, analog, and discrete components optimized for efficiency and robustness in automotive, industrial, and consumer applications.
The 74HC163D,652 belongs to Nexperia's 74HC logic family-engineered for low-power, high-noise-immunity digital control in space-constrained, thermally demanding environments.
FAQ
What is the minimum supply voltage for reliable operation of 74HC163D,652?
The 74HC163D,652 is fully specified down to 2.0 V per JEDEC 7A and Nexperia's recommended operating conditions. At 2.0 V, VIH = 1.5 V min and fmax = 6.25 MHz, making it suitable for battery-backed or low-voltage microcontroller peripherals where rail voltage may dip below 3.3 V.
Can 74HC163D,652 be used in asynchronous reset configurations?
No-the MR input is strictly synchronous: it only takes effect on the next rising edge of CP. There is no asynchronous reset capability. For immediate reset, external logic (e.g., NAND gate combining MR with CP) is required-but this violates the synchronous guarantee and introduces timing hazards.
How does the look-ahead carry (TC) differ from ripple carry in cascading?
TC asserts one CP cycle after Q0–Q3 reach HHHH, with propagation delay independent of counter stage position. In contrast, ripple carry relies on Q3 toggling to trigger the next stage's CP, adding cumulative delay (e.g., 4 × tpd). This makes TC-based cascading scalable to >8 stages without violating setup time at 20+ MHz.
Is the 74HC163D,652 pin-compatible with older 74LS163 variants?
Yes-pinout is identical across 74HC163, 74HCT163, and 74LS163 families (SO16/SOIC-16). However, electrical compatibility requires verification: 74HC163D,652 outputs swing rail-to-rail but LS inputs expect 2.0 V VIH, so direct connection to LS loads may require pull-up resistors or level translation at high speed.
74HC163D,652 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- 74HC
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Logic Type:
- Binary Counter
- Direction:
- Up
- Number of Elements:
- 1
- Number of Bits per Element:
- 4
- Reset:
- Synchronous
- Timing:
- Synchronous
- Count Rate:
- 55 MHz
- Trigger Type:
- Positive Edge
- Voltage - Supply:
- 2 V ~ 6 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SO
74HC163D,652 FAQ
1.How can I place an order for 74HC163D,652 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HC163D,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 74HC163D,652 reliable?
The price and inventory of 74HC163D,652 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HC163D,652 is usually 5 days.
3.What payment methods are accepted for 74HC163D,652?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HC163D,652 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HC163D,652?
74HC163D,652 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HC163D,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 74HC163D,652?
For technical support, including 74HC163D,652 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HC163D,652 requirements.
6.How does Aetrix verify that 74HC163D,652 is sourced from the original manufacturer or authorized distributors?
All 74HC163D,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 74HC163D,652 meets industry standards.
7.What is the process for return or replacement of 74HC163D,652?
All 74HC163D,652 units undergo pre-shipment inspection (PSI). If there is an issue with 74HC163D,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 74HC163D,652 part is unused and in its original packaging.
Return procedure for 74HC163D,652:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74HC163D,652 Tags
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74HC393BQ,115
Nexperia USA Inc.
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SN74LV8154PWR
Texas Instruments
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MC14516BDR2G
onsemi
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MC14020BDR2G
onsemi
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MC100EP32DTR2G
onsemi
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MC100EP016AMNG
onsemi
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MC100EP016AFAG
onsemi
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SN74LV163ADR
Texas Instruments
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SN74LV163APWR
Texas Instruments
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SN74HC393DR
Texas Instruments
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SN74HC161DR
Texas Instruments
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SN74HC163DR
Texas Instruments
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