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Nexperia USA Inc. 74HCT163DB,118
- Part No.:
- 74HCT163DB,118
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Counters, Dividers
- Package:
- 16-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
74HCT163DB,118.pdf
- Description:
- IC BINARY COUNTER 4-BIT 16SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,789
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Product details
Overview
74HCT163DB,118 from Nexperia is a synchronous presettable 4-bit binary counter with internal look-ahead carry, TTL-compatible input levels, synchronous reset, and parallel load capability. It operates from 4.5 V to 5.5 V across –40 °C to +125 °C, delivers ≤59 ns CP-to-Q propagation delay at 4.5 V, and supports glitch-free modulo-N counting in industrial control timing circuits.
For engineers reviewing the 74HCT163DB,118 datasheet, 74HCT163DB,118 pinout, 74HCT163DB,118 application, or 74HCT163DB,118 equivalent, this device is selected for deterministic synchronous counting, cascaded multi-stage counters requiring terminal count (TC) feed-forward, and systems needing precise parallel preset under clock-edge control without asynchronous ripple effects.
Technical Context
The 74HCT163DB,118 implements four edge-triggered D-type flip-flops with synchronous clocking on the positive-going edge of CP. Its dual count-enable inputs (CEP and CET) gate counting and enable TC output generation only when both are HIGH, ensuring clean enable/disable behavior in multi-counter chains.
Reset is fully synchronous: MR must be LOW before the next CP edge to clear Q0–Q3 to LOW; preset occurs synchronously via PE and D0–D3 regardless of CEP/CET state. The TC output pulses HIGH for one CP period when CET = HIGH and Q0–Q3 = HHHH, enabling direct cascade to the next stage without external logic.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Family | 74HCT - TTL-compatible input thresholds (VIH ≥ 2.0 V, VIL ≤ 0.8 V @ VCC = 4.5–5.5 V) |
| Count Width & Type | 4-bit synchronous binary counter with look-ahead carry for seamless n-bit cascading |
| Max Clock Frequency | 45 MHz at VCC = 4.5 V, CL = 15 pF - supports high-speed timing in PLC I/O modules |
| Propagation Delay | CP to Qn ≤ 39 ns (typ), CP to TC ≤ 49 ns (typ) at VCC = 4.5 V - enables tight timing budgets in real-time sequencers |
| Operating Temperature | –40 °C to +125 °C - qualified for under-hood automotive and industrial motor drive control |
| Supply Voltage Range | 4.5 V to 5.5 V - compatible with standard 5 V logic rails and noise-immune industrial power domains |
| Terminal Count Output | TC asserts HIGH for one CP cycle at overflow (1111 → 0000) when CET = HIGH - eliminates need for external decode logic |
Pinout & Package
74HCT163DB,118 is housed in a 16-lead SSOP package (SOT338-1), 5.3 mm body width, with 0.65 mm lead pitch and exposed pad not present. Pin 1 is MR (synchronous master reset, active LOW); pin 16 is VCC; pin 8 is GND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| MR (1) | Synchronous master reset input | Clears Q0–Q3 to LOW on next CP rising edge when asserted LOW - enables deterministic zero-reset without glitches |
| CP (2) | Clock input | Positive-edge triggered; all flip-flops update simultaneously - ensures no ripple delay between bits |
| D0–D3 (3–6) | Parallel data inputs | Loaded into counter on CP edge when PE = LOW - allows instant preset to any 4-bit value |
| CEP (7) | Count enable parallel input | Must be HIGH with CET to permit counting - used for hierarchical enable gating in multi-counter systems |
| GND (8) | Ground reference | 0 V return for all internal logic and I/O - requires low-inductance connection to minimize switching noise |
| PE (9) | Parallel enable input | Active LOW; enables loading of D0–D3 on CP edge regardless of CEP/CET state - decouples preset from count enable |
| CET (10) | Count enable carry input | Enables TC output when HIGH and counter reaches 15 - feeds forward to next stage's CEP for serial cascade |
| Q0–Q3 (14,13,12,11) | Counter outputs | Q0 is LSB; outputs change synchronously on CP edge - eliminates race conditions in downstream combinational logic |
| TC (15) | Terminal count output | HIGH for one CP period at 1111→0000 transition when CET = HIGH - directly clocks next counter stage |
| VCC (16) | Supply voltage | 4.5–5.5 V DC; bypassing with 100 nF ceramic capacitor near pin required for stable operation |
Key Features
| Feature | Design Value |
|---|---|
| Synchronous reset & load | Eliminates metastability and output glitches during preset or clear - critical for deterministic state machines |
| Look-ahead carry architecture | Reduces inter-stage propagation delay in cascaded counters - enables >16-bit counting with minimal added latency |
| TTL-compatible inputs | Accepts standard 5 V TTL logic levels without level-shifting - simplifies integration with legacy microcontrollers and FPGAs |
| ESD protection | HBM >2000 V, MM >200 V - enhances robustness in manufacturing and field-deployed industrial environments |
| Wide temperature range | Specified from –40 °C to +125 °C - supports operation in engine control units and power converter controllers |
Applications
| Industrial PLC Timing Modules | Automotive Engine Control Units |
|---|---|
Use Scenario: Generating precise 1–16 step timing sequences for valve actuation and sensor sampling intervals. IC Role / Device Role / Timing Role: Primary synchronous counter providing deterministic, glitch-free modulo-N timing with programmable preset. Use Value: Enables exact cycle alignment across multiple I/O channels using single clock domain and no external decode logic. | Use Scenario: Cascading two 74HCT163DB,118 devices to implement an 8-bit RPM counter fed by crankshaft position sensor pulses. IC Role / Device Role / Timing Role: Synchronous binary counter with look-ahead carry enabling accurate high-frequency pulse accumulation up to 45 MHz. Use Value: Delivers jitter-free 8-bit count with <10 ns inter-stage skew, meeting ASAM MCAL timing accuracy requirements. |
| Test Equipment Pattern Generators | Motor Drive Commutation Logic |
Use Scenario: Generating repeatable stimulus patterns for IC functional testing using programmable modulo counters. IC Role / Device Role / Timing Role: Presettable 4-bit counter controlling address sequencing in ROM-based pattern memory. Use Value: Parallel load allows instant reconfiguration of test sequence start point without clock-cycle waste or reset delay. | Use Scenario: Implementing six-step commutation timing for 3-phase BLDC motor drives using cascaded counters and combinational logic. IC Role / Device Role / Timing Role: Synchronous counter generating phase-aligned timing windows for gate driver enable signals. Use Value: Synchronous reset ensures immediate, deterministic restart of commutation sequence upon fault recovery. |
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 |
|---|---|---|---|
| 74HC163DB,118 | CMOS input thresholds (VIH ≥ 3.15 V @ VCC = 4.5 V); higher noise margin but incompatible with TTL sources | Requires CMOS-level drivers; unsuitable for direct interface with 5 V TTL microcontrollers | Select when system uses pure CMOS logic or when higher noise immunity is prioritized over legacy compatibility |
| SN74LS163N | Bipolar TTL technology; VIH = 2.0 V min, VOL = 0.5 V max, fmax ≈ 30 MHz - lower speed, higher ICC, obsolete packaging | Limited to legacy designs; lacks modern ESD rating and wide-temp qualification | Only for repair or backward compatibility; avoid for new designs due to obsolescence and supply risk |
Compared with 74HC163DB,118 and SN74LS163N, the 74HCT163DB,118 uniquely balances TTL input compatibility, 45 MHz operation, –40 °C to +125 °C qualification, and industry-standard SSOP packaging - making it the optimal choice for new industrial and automotive timing designs requiring drop-in replaceability with legacy 74LS logic while meeting modern reliability standards.
Availability
74HCT163DB,118 is available at Aetrix Electronics and suitable for industrial PLC timing modules, automotive engine control units, and test equipment pattern generators requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74HCT163DB,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 delivering high-performance, reliable logic, analog, and discrete components optimized for efficiency and miniaturization in industrial, automotive, and consumer applications.
The 74HCT163DB,118 belongs to Nexperia's 74HCT logic family, engineered specifically for robust 5 V system interfacing where TTL-compatible inputs, synchronous operation, and extended temperature resilience are mandatory - targeting motor control, instrumentation, and safety-critical timing subsystems.
FAQ
What is the minimum setup time for the PE (parallel enable) input relative to the CP rising edge?
At VCC = 4.5 V, the PE setup time (tsu) is 20 ns minimum - meaning PE must be stable at its active-LOW level at least 20 ns before the CP rising edge to guarantee reliable parallel load operation. This value increases to 25 ns over the full –40 °C to +125 °C range per datasheet Table 7.
Can the 74HCT163DB,118 be used in a 3.3 V system?
No - the 74HCT163DB,118 is specified only for 4.5 V to 5.5 V operation. Its TTL-compatible inputs require VIH ≥ 2.0 V, but output VOH drops below 3.0 V at VCC = 3.3 V, and internal logic margins are not characterized. Use 74LVC163 or similar 3.3 V logic-family parts instead.
How does the TC output behave when CET is LOW?
When CET is LOW, the TC output remains LOW regardless of counter state - it is disabled. TC only goes HIGH for one CP period when both CET = HIGH and the counter transitions from 1111 to 0000. This enables selective cascade enable without external gating.
Is the SSOP package (SOT338-1) RoHS compliant and lead-free?
Yes - the 74HCT163DB,118 in SOT338-1 packaging is RoHS compliant and lead-free per Nexperia's product compliance documentation (document ID 74HC_HCT163 v.5, October 2018), with homogeneous material lead content < 0.1 wt% and full exemption status under EU Directive 2011/65/EU.
74HCT163DB,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HCT
- Package/Case:
- 16-SSOP (0.209", 5.30mm Width)
- Packaging:
- Tape & Reel (TR)
- 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-SSOP
74HCT163DB,118 FAQ
1.How can I place an order for 74HCT163DB,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HCT163DB,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 74HCT163DB,118 reliable?
The price and inventory of 74HCT163DB,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HCT163DB,118 is usually 5 days.
3.What payment methods are accepted for 74HCT163DB,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HCT163DB,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HCT163DB,118?
74HCT163DB,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HCT163DB,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 74HCT163DB,118?
For technical support, including 74HCT163DB,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HCT163DB,118 requirements.
6.How does Aetrix verify that 74HCT163DB,118 is sourced from the original manufacturer or authorized distributors?
All 74HCT163DB,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 74HCT163DB,118 meets industry standards.
7.What is the process for return or replacement of 74HCT163DB,118?
All 74HCT163DB,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74HCT163DB,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 74HCT163DB,118 part is unused and in its original packaging.
Return procedure for 74HCT163DB,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74HCT163DB,118 Tags
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