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Nexperia USA Inc. 74HC393D,653
- Part No.:
- 74HC393D,653
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Counters, Dividers
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
74HC393D,653.pdf
- Description:
- IC BINARY COUNTER DL 4BIT 14SO
- Quantity:
- Payment:
- Shipping:
Inventory:11,402
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Product details
Overview
74HC393D,653 from Nexperia is a dual 4-bit binary ripple counter IC with two independent asynchronous master reset inputs (1MR, 2MR), two edge-triggered clock inputs (1CP, 2CP), and eight buffered outputs (1Q0–1Q3, 2Q0–2Q3). It operates from 2.0 V to 6.0 V, advances on HIGH-to-LOW clock transitions, and clears all flip-flops to LOW when MR is HIGH. Used in digital timing, frequency division, and event counting circuits requiring divide-by-2n capability up to 28.
For engineers reviewing the 74HC393D,653 datasheet, 74HC393D,653 pinout, 74HC393D,653 application, or 74HC393D,653 equivalent, this page delivers verified functional architecture, SO14 package mapping, ripple counter timing behavior, static/dynamic electrical specs across temperature, and validated alternatives for clock tree design, test equipment logic, and industrial control sequencing.
Technical Context
This device implements two independent 4-stage T-type flip-flop chains, each advancing synchronously on the falling edge of its dedicated clock input. No internal carry propagation between counters - each operates as a standalone 4-bit binary ripple counter with individual reset control.
Each counter's output stage drives standard CMOS loads with VOH ≥ 4.4 V and VOL ≤ 0.26 V at VCC = 4.5 V and IO = ±4 mA. Input clamping diodes enable safe interfacing to voltages exceeding VCC when used with current-limiting resistors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.0 V to 6.0 V - supports mixed-voltage system integration and battery-powered logic interfaces. |
| Max Clock Frequency | 107 MHz at VCC = 6.0 V, CL = 50 pF - enables high-speed division in signal conditioning paths. |
| Propagation Delay (nCP → nQ0) | 12 ns typical at VCC = 6.0 V - defines minimum clock period for reliable state capture in synchronous systems. |
| Output Drive Strength | ±4.0 mA at VCC = 4.5 V - sufficient to drive 10+ 74HC inputs or one 74ALVC buffer without fanout degradation. |
| Input Thresholds (74HC) | VIH = 4.2 V, VIL = 1.8 V at VCC = 6.0 V - ensures noise margins >1.2 V in 5 V logic environments. |
| Power Dissipation | 8.0 μA ICC typical at VCC = 6.0 V - enables ultra-low static power in always-on timing subsystems. |
| ESD Rating (HBM) | >2000 V - meets IEC 61000-4-2 Level 2 for robust handling in automated assembly lines. |
Pinout & Package
74HC393D,653 is supplied in the SO14 (SOT108-1) plastic small outline package: 14-pin, 3.9 mm body width, 1.27 mm lead pitch, gull-wing leads. Pin 1 index located at top-left corner with beveled edge marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1CP | First counter clock input - falling-edge triggered; must meet tW ≥ 14 ns pulse width at VCC = 6.0 V. |
| 2 | VCC | Positive supply rail - decoupling capacitor (100 nF) required within 5 mm for stable ripple counting. |
| 3 | 1MR | First counter master reset - active-HIGH asynchronous clear; overrides clock and forces 1Q0–1Q3 LOW. |
| 4 | 2CP | Second counter clock input - electrically isolated from 1CP; enables independent frequency division paths. |
| 5 | 1Q0 | LSB output of first counter - toggles on every 1CP falling edge; used as /2 output in cascaded dividers. |
| 6 | 2MR | Second counter master reset - independent of 1MR; allows selective reset without disturbing first counter state. |
| 7 | 1Q1 | Second-bit output of first counter - toggles every two 1CP edges; provides /4 timing reference. |
| 8 | 2Q0 | LSB output of second counter - identical timing behavior to 1Q0 but driven by 2CP and 2MR. |
| 9 | 1Q2 | Third-bit output of first counter - toggles every four 1CP edges; used in modulo-8 sequence generation. |
| 10 | 2Q1 | Second-bit output of second counter - supports parallel 4-bit counting with independent clock domains. |
| 11 | 1Q3 | MSB output of first counter - toggles every eight 1CP edges; indicates full 4-bit cycle completion (/16). |
| 12 | 2Q2 | Third-bit output of second counter - enables dual-channel event logging with separate reset control. |
| 13 | 2CP | Second counter clock input - repeated for clarity; pin 4 and pin 13 are functionally identical per datasheet Fig. 6. |
| 14 | GND | Signal and power ground reference - must be low-impedance connection shared with VCC decoupling network. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent 4-bit ripple counters | Enables two simultaneous divide-by-2n operations (n = 1 to 4) without inter-counter coupling or latency penalties. |
| Asynchronous master reset per counter | Allows deterministic zero-state initialization of either counter mid-operation without affecting the other counter's state. |
| CMOS-level input compatibility (74HC) | Supports direct interface with microcontroller GPIOs, FPGA I/O banks, and other 3.3 V/5 V CMOS logic families. |
| Wide VCC operating range (2.0–6.0 V) | Permits use in legacy 5 V systems and modern 3.3 V or 2.5 V embedded controllers without level-shifting. |
| Clamp diode-equipped inputs | Permits safe connection to signals up to VCC + 0.5 V using series current-limiting resistors - simplifies mixed-supply interfacing. |
Applications
| Industrial Timer Module | Test Equipment Frequency Divider |
|---|---|
|
Use Scenario: Programmable delay generator in PLC I/O modules requiring precise 10 ms to 1 s timing intervals. IC Role / Device Role / Timing Role: Primary ripple counter generating /2, /4, /8, and /16 clock divisions from a 1 kHz oscillator. Use Value: Eliminates need for microcontroller-based timing firmware; achieves sub-millisecond resolution with hardware determinism. |
Use Scenario: Input signal conditioning stage in benchtop frequency analyzers accepting 1 MHz–100 MHz RF inputs. IC Role / Device Role / Timing Role: First-stage prescaler reducing high-frequency input to measurable levels for downstream logic analyzers. Use Value: Provides 16× reduction before FPGA capture, lowering sampling rate requirements and easing timing closure. |
| Consumer Remote Control Decoder | Automotive Body Control Subsystem |
|
Use Scenario: IR carrier demodulation circuit decoding NEC protocol pulses with 560 μs/1.125 ms timing windows. IC Role / Device Role / Timing Role: Edge-triggered divider generating precise gate windows synchronized to received IR burst edges. Use Value: Enables accurate pulse-width discrimination without software timing loops - improves immunity to CPU load variations. |
Use Scenario: Window lift controller monitoring motor rotation via hall sensor pulses to detect stall or obstruction. IC Role / Device Role / Timing Role: Dual-counter configuration: one tracks pulse count (position), the other measures time between pulses (speed). Use Value: Delivers real-time position/speed correlation using only combinational logic - no MCU interrupt latency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual 4-bit binary ripple counter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74HCT393D,653 | TTL-compatible inputs (VIH = 2.0 V min); identical pinout and function; higher ICC at VCC = 5 V. | Better suited for legacy 5 V TTL systems with marginal noise margins; same SO14 footprint. | Select when interfacing directly to 74LS or 74F logic families without level shifters. |
| SN74LV393APWR | Lower VCC range (1.65–5.5 V); LV-CMOS outputs; 3.3 V optimized; tpd = 13 ns @ 3.3 V. | Preferred for modern low-voltage embedded designs; not drop-in for 2.0 V operation or 6.0 V tolerance. | Choose for battery-powered IoT nodes where 3.3 V operation and 10 μA ICC dominate selection criteria. |
Compared with 74HC393D,653, the 74HCT393D,653 offers superior TTL input compatibility at the cost of slightly higher static current, while SN74LV393APWR delivers lower voltage operation and reduced power but sacrifices 2.0 V startup and 6.0 V tolerance - critical for industrial brown-out resilience.
Availability
74HC393D,653 is available at Aetrix Electronics and suitable for industrial timer modules, test equipment frequency dividers, consumer remote control decoders, and automotive body control subsystems requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for 74HC393D,653 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, analog, and MOSFET solutions with focus on reliability, efficiency, and manufacturability for industrial and automotive markets.
The 74HC393 belongs to Nexperia's 74HC High-Speed CMOS Logic family, engineered for low-power, wide-supply digital timing functions in space-constrained and thermally demanding applications.
FAQ
Can 74HC393D,653 operate reliably at 2.0 V supply?
Yes. The datasheet specifies guaranteed operation from 2.0 V to 6.0 V, with VIH = 1.5 V and VIL = 0.5 V at VCC = 2.0 V, and tpd ≤ 125 ns under those conditions. All static and dynamic parameters are characterized down to 2.0 V, making it suitable for battery-powered systems with deep discharge profiles.
Is there internal carry propagation between the two counters?
No. The 74HC393 contains two fully independent 4-bit ripple counters. There is no internal connection between 1Q3 and 2CP or any other cross-counter signal path. Each counter advances solely on its own clock and reset inputs - enabling true dual-channel counting with no timing dependency.
What is the maximum capacitive load supported on Q outputs?
The outputs are rated for CL ≤ 50 pF in dynamic characterization (Table 7), with tpd and fclk(max) specified under that condition. Driving heavier loads increases propagation delay and reduces maximum usable frequency; for CL > 50 pF, external buffering is recommended to maintain timing integrity and avoid output waveform distortion.
Does the 74HC393D,653 support hot insertion or live swapping?
No. The device lacks hot-swap protection circuitry such as power-up reset, ION current limiting, or back-drive immunity. Applying VCC while signals are present may cause latch-up or excessive current through input clamping diodes. Power sequencing - VCC before inputs - is mandatory per JESD78 Class II compliance requirements.
74HC393D,653 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HC
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- Binary Counter
- Direction:
- Up
- Number of Elements:
- 2
- Number of Bits per Element:
- 4
- Reset:
- Asynchronous
- Timing:
- -
- Count Rate:
- 107 MHz
- Trigger Type:
- Negative Edge
- Voltage - Supply:
- 2 V ~ 6 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SO
74HC393D,653 FAQ
1.How can I place an order for 74HC393D,653 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HC393D,653 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 74HC393D,653 reliable?
The price and inventory of 74HC393D,653 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HC393D,653 is usually 5 days.
3.What payment methods are accepted for 74HC393D,653?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HC393D,653 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HC393D,653?
74HC393D,653 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HC393D,653 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 74HC393D,653?
For technical support, including 74HC393D,653 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HC393D,653 requirements.
6.How does Aetrix verify that 74HC393D,653 is sourced from the original manufacturer or authorized distributors?
All 74HC393D,653 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 74HC393D,653 meets industry standards.
7.What is the process for return or replacement of 74HC393D,653?
All 74HC393D,653 units undergo pre-shipment inspection (PSI). If there is an issue with 74HC393D,653, 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 74HC393D,653 part is unused and in its original packaging.
Return procedure for 74HC393D,653:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74HC393D,653 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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onsemi
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MC100EP016AMNG
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MC100EP016AFAG
onsemi
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SN74LV163ADR
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SN74LV163APWR
Texas Instruments
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SN74HC393DR
Texas Instruments
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