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Nexperia USA Inc. 74HC590D,118
- Part No.:
- 74HC590D,118
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Counters, Dividers
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
74HC590D,118.pdf
- Description:
- IC BINARY COUNTER 8-BIT 16SO
- Quantity:
- Payment:
- Shipping:
Inventory:3,984
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Product details
Overview
74HC590D,118 from Nexperia is an 8-bit binary counter IC with integrated storage register and 3-state outputs, used for synchronized counting and buffered data latching in digital timing and control systems. It features independent counter (CPC) and register (CPR) clocks, master reset (MRC), count enable (CE), output enable (OE), and ripple carry output (RCO) for cascading. Operates from 2.0 V to 6.0 V across -40 °C to +125 °C.
For engineers reviewing the 74HC590D,118 datasheet, 74HC590D,118 pinout, 74HC590D,118 application, or 74HC590D,118 equivalent, key selection considerations include dual-clock synchronization between counter and register stages, RCO-based cascade capability, 3-state bus interface compatibility, and industrial temperature range support.
Technical Context
The 74HC590D implements a synchronous 8-bit binary counter with separate positive-edge-triggered CPC and CPR inputs, enabling precise decoupling of counting and latching operations. Its internal architecture includes a master-resettable counter stage feeding an edge-triggered 8-bit storage register with parallel Q0–Q7 outputs.
RCO is an active-low ripple carry output derived from the logical AND of all eight internal counter bit complements (Q0′·Q1′·…·Q7′), supporting daisy-chained multi-stage counting. The 3-state outputs are controlled by OE (active low), allowing direct connection to shared data buses without external buffering.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Function | 8-bit binary counter with output register and 3-state outputs - enables synchronized counting and glitch-free bus interfacing. |
| Supply voltage | 2.0 V to 6.0 V - supports mixed-voltage logic domains including 3.3 V and 5 V systems. |
| Operating temperature | -40 °C to +125 °C - qualified for industrial and extended-temperature embedded applications. |
| Max clock frequency | 61 MHz at VCC = 6.0 V - sufficient for high-speed digital control and instrumentation timing. |
| Propagation delay | 14 ns (CPR to Qn, VCC = 6.0 V) - ensures tight timing margins in synchronous state machines. |
| Output drive | ±35 mA per Qn output - directly drives standard TTL/CMOS loads without external buffers. |
| Ripple carry output | Active-low RCO with fan-out capability - enables seamless cascading of multiple 74HC590 devices for >8-bit counts. |
Pinout & Package
74HC590D,118 is housed in a 16-pin SO16 (SOT109-1) plastic small outline package, 3.9 mm body width, with gull-wing leads and surface-mount footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 6, 7, 15 | Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q0 | Parallel 8-bit registered data outputs; 3-state controlled by OE. |
| 8 | GND | Ground reference for all internal logic and I/O; must be connected to system 0 V plane. |
| 9 | RCO | Ripple carry output (active LOW); indicates counter overflow (Q0–Q7 = 11111111). |
| 10 | MRC | Master reset counter input (active LOW); asynchronously clears counter to 00000000. |
| 11 | CPC | Counter clock input (active HIGH); advances counter on rising edge when CE = LOW. |
| 12 | CE | Count enable input (active LOW); gates CPC clocking - counter holds when CE = HIGH. |
| 13 | CPR | Register clock input (active HIGH); latches current counter value into output register on rising edge. |
| 14 | OE | Output enable input (active LOW); places Q0–Q7 outputs in high-impedance state when HIGH. |
| 16 | VCC | Positive supply voltage (2.0 V to 6.0 V); powers internal logic and output drivers. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent clocks | CPC and CPR allow asynchronous counter advancement and synchronous register capture - eliminates race conditions in pipeline staging. |
| 3-state bus interface | OE-controlled high-impedance outputs enable direct connection to shared data buses without contention or external transceivers. |
| Ripple carry cascade | RCO output supports daisy-chain expansion to 16-, 24-, or N×8-bit counters using standard wiring - no additional logic required. |
| Wide voltage operation | 2.0 V to 6.0 V supply range permits interoperability with legacy 5 V and modern 3.3 V/2.5 V logic families. |
| Industrial temperature grade | Specified from -40 °C to +125 °C - suitable for motor control, PLCs, and outdoor industrial electronics. |
Applications
| Industrial Counter Module | Programmable Logic Controller (PLC) I/O Timing |
|---|---|
Use Scenario: High-reliability 8-bit event counting in factory automation sensors with real-time register readout. IC Role / Device Role / Timing Role: Counter accumulates pulses from encoder or limit switch; register captures stable snapshot for CPU read via shared bus. Use Value: Dual-clock isolation prevents CPU read corruption during ongoing counting; RCO enables multi-axis position tracking up to 65535 steps. |
Use Scenario: Synchronized I/O scanning cycle in modular PLC backplane with time-critical status latching. IC Role / Device Role / Timing Role: Counts scan-cycle ticks; register updates only at end-of-scan boundary under CPR control. Use Value: Eliminates metastability during CPU polling; 3-state outputs prevent bus contention during idle cycles. |
| Test Equipment Frequency Divider | Legacy System Bus Interface Adapter |
Use Scenario: Precision frequency division and gated measurement in benchtop signal analyzers. IC Role / Device Role / Timing Role: Counts input clock edges; RCO triggers downstream logic or ADC sampling at exact sub-multiple intervals. Use Value: Propagation delay ≤14 ns (VCC = 6 V) ensures sub-10 ns timing jitter in 100 MHz+ divider chains. |
Use Scenario: Bridging 8-bit microcontroller address/data bus to legacy peripheral requiring latch-stabilized outputs. IC Role / Device Role / Timing Role: Acts as transparent latch + counter; Q outputs mirror counter state only when OE is asserted. Use Value: Replaces discrete 74HC373 + 74HC161 combo; reduces BOM count and PCB area while maintaining identical timing behavior. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit binary counter with output register applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74HC4040D,118 | 12-bit ripple counter, no output register or 3-state outputs - lacks synchronized latching and bus interface capability. | Suitable only for non-bus-coupled, single-stage counting where intermediate readout isn't required. | Select only if cascading depth >8 bits is primary need and register/buffering is unnecessary. |
| SN74LV8154IPW | 16-bit counter with dual 8-bit registers, but requires 3.3 V only (1.65–3.6 V), no 5 V tolerance. | Limited to modern low-voltage systems; incompatible with 5 V legacy interfaces or mixed-supply designs. | Prefer when full 16-bit resolution and dual-register flexibility are needed in 3.3 V-only environments. |
Compared with 74HC4040D,118 and SN74LV8154IPW, the 74HC590D,118 uniquely balances 8-bit precision, dual-clock register staging, 3-state bus compatibility, and 2.0–6.0 V operation - making it optimal for industrial control and mixed-voltage upgrade paths where deterministic latching and legacy interface support are critical.
Availability
74HC590D,118 is available at Aetrix Electronics and suitable for industrial counter modules, programmable logic controller (PLC) timing subsystems, test equipment frequency dividers, and legacy bus interface adapters requiring stable component supply across extended temperature ranges.
Supply support for 74HC590D,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 focused on high-volume, high-reliability logic, analog, and MOSFET solutions for automotive, industrial, and consumer markets.
The 74HC590 belongs to Nexperia's HC logic family - designed specifically for robust, low-power, wide-supply digital control in harsh industrial environments with strict ESD and latch-up immunity requirements.
FAQ
What is the function of the RCO pin on the 74HC590D,118?
The RCO (Ripple Carry Output) is an active-low open-drain–compatible output that goes LOW when the internal 8-bit counter reaches its maximum value (11111111). It is generated as Q0′·Q1′·Q2′·Q3′·Q4′·Q5′·Q6′·Q7′ and is used to cascade multiple 74HC590 devices by connecting RCO of one stage to CE or CPC of the next, enabling larger modulo-N counting without external logic.
Can the 74HC590D,118 operate reliably at 3.3 V?
Yes - the 74HC590D,118 is fully specified from 2.0 V to 6.0 V, including 3.3 V operation. At VCC = 3.3 V, typical propagation delay is ≤22 ns (CPR to Qn), VIH is 2.1 V min, and VOL remains ≤0.26 V at 6 mA sink - meeting standard 3.3 V LVTTL and CMOS interface thresholds with margin.
How does the dual-clock architecture (CPC and CPR) improve system timing?
The separate CPC (counter clock) and CPR (register clock) inputs eliminate race conditions between counting and readout. The counter can advance continuously while the register captures a stable snapshot on demand - ensuring CPU or FPGA reads reflect a consistent, glitch-free value even during active counting, critical for real-time motion control and data acquisition.
Is the 74HC590D,118 pin-compatible with other 74HC590 package variants?
Yes - the 74HC590D,118 (SO16/SOT109-1), 74HC590PW (TSSOP16), and 74HC590BQ (DHVQFN16) share identical pin numbering and electrical functionality. Only mechanical footprint and thermal characteristics differ; PCB layout must match the selected package, but firmware, schematic, and logic design remain fully interchangeable.
74HC590D,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HC
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- Binary Counter
- Direction:
- Up
- Number of Elements:
- 1
- Number of Bits per Element:
- 8
- Reset:
- Asynchronous
- Timing:
- -
- Count Rate:
- 61 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
74HC590D,118 FAQ
1.How can I place an order for 74HC590D,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HC590D,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 74HC590D,118 reliable?
The price and inventory of 74HC590D,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HC590D,118 is usually 5 days.
3.What payment methods are accepted for 74HC590D,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HC590D,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HC590D,118?
74HC590D,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HC590D,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 74HC590D,118?
For technical support, including 74HC590D,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HC590D,118 requirements.
6.How does Aetrix verify that 74HC590D,118 is sourced from the original manufacturer or authorized distributors?
All 74HC590D,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 74HC590D,118 meets industry standards.
7.What is the process for return or replacement of 74HC590D,118?
All 74HC590D,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74HC590D,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 74HC590D,118 part is unused and in its original packaging.
Return procedure for 74HC590D,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74HC590D,118 Tags
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74HC393BQ,115
Nexperia USA Inc.
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