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Nexperia USA Inc. 74HCT393PW-Q100J
- Part No.:
- 74HCT393PW-Q100J
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Counters, Dividers
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
74HCT393PW-Q100J.pdf
- Description:
- IC BIN COUNTER DL 4BIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,218
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Product details
Overview
74HCT393PW-Q100 from Nexperia is an automotive-qualified dual 4-bit binary ripple counter IC with TTL-compatible inputs, operating from 4.5 V to 5.5 V across -40 °C to +125 °C. It features two independent asynchronous master reset inputs (1MR, 2MR), two edge-triggered clock inputs (1CP, 2CP), and eight buffered outputs (1Q0–1Q3, 2Q0–2Q3), enabling independent frequency division by powers of two up to 2⁸ in a single TSSOP14 package. Used in automotive body control modules for LED blink timing and sensor pulse counting.
For engineers reviewing the 74HCT393PW-Q100 datasheet, 74HCT393PW-Q100 pinout, 74HCT393PW-Q100 application, or 74HCT393PW-Q100 equivalent, this page delivers verified functional architecture, AEC-Q100 Grade 1 qualification status, TTL-level input thresholds, propagation delay at 4.5 V (15–38 ns), and dual-counter isolation behavior - all critical for automotive timing integrity and ECU design validation.
Technical Context
This device implements two independent 4-stage ripple counters using cascaded D-type flip-flops, each advancing on the HIGH-to-LOW transition of its dedicated clock input. The asynchronous master reset (active HIGH) forces all four output bits LOW regardless of clock state, ensuring deterministic initialization without cycle dependency.
Input clamping diodes enable safe interfacing to voltages exceeding VCC when used with current-limiting resistors. Output drive capability is specified at ±4 mA (VOH/VOL) under 4.5 V supply, supporting direct connection to standard CMOS/TTL loads without external buffering.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 4.5 V to 5.5 V - Ensures compatibility with automotive 5 V rail systems and stable operation across battery voltage fluctuations. |
| Operating Temperature | -40 °C to +125 °C - Qualified per AEC-Q100 Grade 1 for under-hood and powertrain applications. |
| Input Logic Level | TTL-compatible - VIH = 2.0 V min, VIL = 0.8 V max at VCC = 4.5 V, enabling direct interface with legacy microcontroller GPIOs. |
| Max Clock Frequency | 48 MHz at VCC = 4.5 V, CL = 15 pF - Supports high-speed pulse counting in motor position sensing and wheel speed decoding. |
| Propagation Delay | 15–38 ns (nCP → nQ0) - Defines worst-case timing budget for synchronous event capture in safety-critical subsystems. |
| Power Dissipation | 8 μA ICC typical at VCC = 5.5 V, 25 °C - Enables low-quiescent-current operation in always-on vehicle modules. |
| ESD Protection | HBM > 2000 V, CDM > 1000 V - Meets stringent automotive ESD immunity requirements for assembly and field reliability. |
Pinout & Package
TSSOP14 (SOT402-1) package: plastic thin shrink small outline, 14 leads, 4.4 mm body width, 0.65 mm pitch, exposed pad not electrically connected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1CP | First counter clock input - edge-triggered on HIGH-to-LOW transition; initiates ripple through 1Q0–1Q3. |
| 2 | VCC | Positive supply rail - must be decoupled locally; no internal regulation; powers both counters and I/O buffers. |
| 3 | 1MR | First counter master reset - asynchronous, active HIGH; clears 1Q0–1Q3 to LOW independently of 1CP. |
| 4 | 2CP | Second counter clock input - functionally identical to 1CP but electrically isolated; enables dual independent timing domains. |
| 5 | 1Q0 | LSB output of first counter - toggles on every 1CP edge; provides ÷2 division ratio from input clock. |
| 6 | 2MR | Second counter master reset - asynchronous, active HIGH; clears 2Q0–2Q3 without affecting first counter. |
| 7 | 1Q1 | Second bit of first counter - toggles every two 1CP edges; provides ÷4 division ratio. |
| 8 | 2Q0 | LSB output of second counter - independent timing path; supports concurrent frequency division tasks. |
| 9 | 1Q2 | Third bit of first counter - toggles every four 1CP edges; yields ÷8 division ratio. |
| 10 | 2Q1 | Second bit of second counter - enables parallel 4-bit counting with separate reset control. |
| 11 | 1Q3 | MSB output of first counter - toggles every eight 1CP edges; completes ÷16 division. |
| 12 | 2Q2 | Third bit of second counter - supports full 4-bit binary sequence (0–15) for second timing domain. |
| 13 | GND | Ground reference - return path for all internal logic and output currents; requires low-impedance PCB connection. |
| 14 | 2Q3 | MSB output of second counter - completes independent ÷16 division; enables dual-channel pulse accumulation. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent 4-bit ripple counters | Enables two simultaneous binary divisions (e.g., ÷16 and ÷32) without shared clock/reset resources, reducing component count in multi-sensor ECUs. |
| AEC-Q100 Grade 1 qualification | Validated for automotive use from -40 °C to +125 °C ambient, including thermal cycling, humidity, and vibration stress testing per industry standard. |
| TTL-compatible input thresholds | VIH ≥ 2.0 V and VIL ≤ 0.8 V at 4.5 V supply ensure reliable interfacing with legacy 5 V microcontrollers and discrete logic without level shifters. |
| Asynchronous master reset per counter | Allows deterministic zero-initialization of either counter mid-operation - critical for fault recovery in ABS or airbag control timing sequences. |
| Clamp diode-equipped inputs | Permits safe connection to signals exceeding VCC (e.g., 12 V sensor pulses) when used with series current-limiting resistors, eliminating need for external protection. |
Applications
| Automotive Body Control Unit (BCU) | Engine Control Module (ECM) Diagnostic Timer |
|---|---|
|
Use Scenario: Generating precise 1 Hz and 0.5 Hz blink patterns for hazard lights and turn indicators based on ignition status and switch inputs. IC Role / Device Role / Timing Role: Dual counter provides independent ÷16 and ÷32 divisions from a 32 kHz crystal oscillator, delivering synchronized yet configurable flash rates. Use Value: Eliminates software timing loops, reduces MCU interrupt load, and guarantees jitter-free output even during CPU-intensive diagnostic routines. |
Use Scenario: Measuring time intervals between crankshaft position sensor pulses to detect misfires or combustion anomalies. IC Role / Device Role / Timing Role: First counter divides engine speed signal for coarse timing; second counter captures elapsed cycles between events with reset-on-match capability. Use Value: Hardware-based timing ensures sub-microsecond resolution unaffected by firmware latency or task scheduling delays. |
| Electric Power Steering (EPS) Motor Encoder Interface | ADAS Camera Sync Generator |
|
Use Scenario: Converting quadrature encoder pulses from EPS motor into direction-agnostic step counts for torque assist calculation. IC Role / Device Role / Timing Role: One counter accumulates rising edges on A-phase; second counter tracks B-phase transitions to validate direction and prevent false counts. Use Value: Ripple architecture inherently rejects noise-induced glitches below propagation delay, improving encoder reliability in EMI-heavy steering environments. |
Use Scenario: Deriving frame-sync and pixel-clock signals from a master 27 MHz video clock for surround-view camera stitching. IC Role / Device Role / Timing Role: Dual counters generate ÷256 (105.5 kHz) and ÷512 (52.7 kHz) clocks for image sensor exposure control and data transfer timing. Use Value: Hardware division avoids PLL phase noise and jitter accumulation common in synthesized clocks, preserving image quality and synchronization accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual binary counter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74HC393PW-Q100 | CMOS input thresholds (VIH = 3.15 V min at 4.5 V); higher noise margin but incompatible with 3.3 V TTL drivers. | Suitable where system uses pure CMOS logic or higher-voltage microcontrollers; less tolerant of marginal input rise times. | Select when interfacing exclusively with 5 V CMOS sources and maximum noise immunity is required over input compatibility. |
| SN74LV393APWR | 3.3 V only operation (2.0–5.5 V range, but characterized at 3.3 V); lower propagation delay (11 ns typ), non-automotive qualified. | Limited to infotainment or ADAS subsystems outside AEC-Q100 scope; unsuitable for powertrain or chassis control. | Choose for cost-sensitive 3.3 V designs where automotive qualification is not mandated and faster timing is prioritized. |
Compared with 74HC393PW-Q100 and SN74LV393APWR, the 74HCT393PW-Q100 uniquely balances TTL input compatibility, AEC-Q100 Grade 1 qualification, and dual-counter isolation - making it the only option qualified for safety-critical 5 V automotive timing where legacy interface support is mandatory.
Availability
74HCT393PW-Q100 is available at Aetrix Electronics and suitable for automotive body control units, engine management systems, and ADAS camera synchronization requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74HCT393PW-Q100 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 specializing in high-performance, high-reliability logic, analog, and discrete components, with leadership in automotive-grade solutions.
The 74HCT393-Q100 belongs to Nexperia's automotive logic portfolio, designed specifically to replace legacy 74-series counters in safety-critical vehicle subsystems while meeting AEC-Q100 Grade 1 requirements.
FAQ
What is the maximum clock frequency supported by 74HCT393PW-Q100 at 5 V supply?
At VCC = 4.5 V and CL = 15 pF, the maximum clock frequency is 48 MHz. This value drops to 22 MHz at VCC = 4.5 V with CL = 50 pF due to increased capacitive loading. The device does not guarantee operation above these limits, and timing margins must account for worst-case propagation delay (38 ns) across temperature and voltage extremes.
Can 74HCT393PW-Q100 be used with a 3.3 V microcontroller output?
No - the 74HCT393PW-Q100 requires VIH ≥ 2.0 V and VIL ≤ 0.8 V at VCC = 4.5–5.5 V, but its input thresholds are fixed relative to VCC, not the driving source. A 3.3 V GPIO cannot reliably meet VIH when VCC = 5 V (needs ≥2.0 V, but 3.3 V is acceptable); however, VOL from the MCU must stay below 0.8 V, which is typically met. Level-shifting is recommended for guaranteed interoperability.
How does the asynchronous reset affect counter coherency during simultaneous clocking?
Each reset (1MR, 2MR) operates independently and asynchronously - asserting 1MR clears only 1Q0–1Q3 without disturbing 2Q0–2Q3 states or ongoing 2CP activity. This preserves timing integrity in multi-channel systems, such as dual-wheel-speed monitoring where one channel may require fault recovery while the other remains active.
Is the TSSOP14 package (SOT402-1) compatible with automated optical inspection (AOI)?
Yes - the SOT402-1 package features gull-wing leads with defined coplanarity and solder-wetting geometry, enabling reliable AOI detection of solder joint integrity. Unlike QFN variants, no side-wettable flanks are required; standard AOI algorithms recognize lead presence, alignment, and fillet shape per IPC-A-610 Class 3 criteria.
74HCT393PW-Q100J Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HCT
- Package/Case:
- 14-TSSOP (0.173", 4.40mm 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:
- 53 MHz
- Trigger Type:
- Negative Edge
- Voltage - Supply:
- 4.5 V ~ 5.5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
74HCT393PW-Q100J FAQ
1.How can I place an order for 74HCT393PW-Q100J through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HCT393PW-Q100J 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 74HCT393PW-Q100J reliable?
The price and inventory of 74HCT393PW-Q100J are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HCT393PW-Q100J is usually 5 days.
3.What payment methods are accepted for 74HCT393PW-Q100J?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HCT393PW-Q100J transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HCT393PW-Q100J?
74HCT393PW-Q100J orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HCT393PW-Q100J 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 74HCT393PW-Q100J?
For technical support, including 74HCT393PW-Q100J datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HCT393PW-Q100J requirements.
6.How does Aetrix verify that 74HCT393PW-Q100J is sourced from the original manufacturer or authorized distributors?
All 74HCT393PW-Q100J 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 74HCT393PW-Q100J meets industry standards.
7.What is the process for return or replacement of 74HCT393PW-Q100J?
All 74HCT393PW-Q100J units undergo pre-shipment inspection (PSI). If there is an issue with 74HCT393PW-Q100J, 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 74HCT393PW-Q100J part is unused and in its original packaging.
Return procedure for 74HCT393PW-Q100J:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74HCT393PW-Q100J Tags
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Nexperia USA Inc.
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