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STMicroelectronics M74HC590RM13TR
- Part No.:
- M74HC590RM13TR
- Manufacturer:
- STMicroelectronics
- Category:
- Counters, Dividers
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
M74HC590RM13TR.pdf
- Description:
- IC BINARY COUNTER 8-BIT 16SO
- Quantity:
- Payment:
- Shipping:
Inventory:2,583
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Product details
Overview
M74HC590RM13TR from STMicroelectronics is a high-speed CMOS 8-bit binary counter register with 3-state outputs, featuring separate counter and register clocks, ripple-carry output (RCO), and asynchronous clear (CCLR). It operates from 2V to 6V, delivers 61 MHz max clock frequency at 6V, and supports cascading via RCO→CCKEN. Used in digital timing control, address sequencing, and programmable logic interfaces.
For engineers reviewing the M74HC590RM13TR datasheet, M74HC590RM13TR pinout, M74HC590RM13TR application, or M74HC590RM13TR equivalent, key selection criteria include its dual-clock architecture, 3-state output enable (G), RCO propagation delay (16–43 ns), ±7.8 mA output drive at 6V, and TSSOP-16 package compatibility with space-constrained PCB layouts.
Technical Context
The M74HC590RM13TR integrates an 8-bit binary counter feeding an independent 8-bit storage register, both edge-triggered on positive clock transitions. Its CCKEN input gates counter advancement, while RCK latches counter state into QA–QH outputs - enabling precise synchronization between counting and readout phases.
Internal protection diodes, symmetrical IOH/IOL (6 mA min for QA–QH; 4 mA min for RCO), and high noise immunity (28% VCC) support robust operation in noisy industrial environments. The RCO output implements active-low carry logic: QA′·QB′·QC′·QD′·QE′·QF′·QG′·QH′, enabling seamless multi-stage counter expansion.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2 V to 6 V - enables direct interface with 3.3 V and 5 V logic systems without level shifters |
| Max Clock Frequency | 61 MHz (typ.) at VCC = 6 V - supports high-speed counting in real-time control loops |
| Output Drive (QA–QH) | ±6 mA (min) at VCC = 4.5 V - sufficient to drive multiple 74HC inputs or small LED loads |
| RCO Propagation Delay | 16–43 ns (VCC = 2–6 V) - defines minimum inter-stage delay when cascading counters |
| Quiescent Current | 4 µA (max) at TA = 25 °C - critical for battery-powered or low-power standby modes |
| Noise Immunity | 28 % VCC (min) - ensures reliable switching under EMI up to ±1.68 V at 6 V supply |
| Input Capacitance | 10 pF (max) - limits capacitive loading on driving gate outputs and preserves signal integrity |
Pinout & Package
TSSOP-16 package: 4.9 × 6.4 mm body, 0.65 mm pitch, 1.2 mm height, lead-free, RoHS-compliant surface-mount outline optimized for automated assembly and thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1–7, 15 | QA–QH (3-state outputs) | Parallel register outputs; high-impedance when G = H, synchronized to RCK edge |
| 9 | RCO (Ripple Carry Output) | Active-low cascade signal; asserts after final count (255 → 0) to enable next stage |
| 10 | CCLR (Asynchronous Clear) | Immediate counter reset to zero regardless of clock state; no register effect |
| 11 | CCK (Counter Clock) | Positive-edge-triggered input advancing counter only when CCKEN = H |
| 12 | CCKEN (Counter Clock Enable) | Gate controlling counter advancement; allows pause/resume without clock gating noise |
| 13 | RCK (Register Clock) | Positive-edge-triggered latch for copying current counter value to QA–QH outputs |
| 14 | G (Output Enable) | Active-low 3-state control for QA–QH; decouples outputs during bus sharing or power-down |
| 8 | GND | Reference ground for all I/O and internal logic; requires low-impedance PCB plane |
| 16 | VCC | Primary power supply; bypassing with 100 nF ceramic capacitor near pin essential for AC stability |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent clocks | CCK and RCK allow asynchronous counting and synchronous readout - eliminates race conditions in buffered timing applications |
| 3-state parallel outputs | QA–QH controlled by G pin enable/disable - supports shared data buses and reduces contention in multi-counter systems |
| Ripple carry output (RCO) | Combinational carry logic enables daisy-chained 16-/24-bit counters without external gates - simplifies large modulus designs |
| High noise immunity | 28 % VCC input threshold margin - maintains correct logic levels in electrically noisy PLC or motor drive environments |
| Low quiescent current | 4 µA max ICC at 25 °C - extends battery life in portable instrumentation with periodic counter polling |
Applications
| Industrial PLC Timing | Serial-to-Parallel Data Latching |
|---|---|
Use Scenario: Precise cycle counting in programmable logic controller scan cycles, where each machine step triggers one counter increment. IC Role / Device Role / Timing Role: Counter tracks execution steps; register captures stable count value for CPU readout at scan end. Use Value: Dual-clock isolation prevents CPU from reading mid-transition values - ensures deterministic state capture. | Use Scenario: Converting serial shift-register output (e.g., from ADC or sensor array) into parallel byte format for microcontroller ingestion. IC Role / Device Role / Timing Role: Counter generates 8-pulse sequence; register latches final parallel word on eighth pulse. Use Value: Eliminates need for external latch ICs - reduces BOM count and board area in compact sensor nodes. |
| Multi-Stage Address Generation | LED Display Scan Control |
Use Scenario: Generating non-repeating memory addresses across multiple SRAM banks using cascaded M74HC590 devices. IC Role / Device Role / Timing Role: First device's RCO drives second device's CCKEN, creating 16-bit address space with automatic carry propagation. Use Value: No external logic required for carry chaining - improves timing predictability and reduces routing congestion. | Use Scenario: Driving 8-digit 7-segment displays via multiplexed common-anode configuration requiring precise digit-select timing. IC Role / Device Role / Timing Role: Counter sequences digit positions; register holds current digit index for segment driver enable logic. Use Value: 3-state outputs prevent ghosting during digit transitions - enhances display contrast and readability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit binary counter register applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74HC590PWR | TSSOP-16, same logic function, but TI version specifies 50 pF load in AC tests vs. ST's 50/150 pF range; tPLH/tPHL slightly tighter tolerance band | Valid for drop-in replacement in new designs; not recommended for legacy ST-based boards due to minor setup/hold time variance | Select when sourcing from TI-authorized channels or when aligning with TI reference designs |
| 74AC590SCX | Higher speed (fMAX = 125 MHz at 5 V), but higher ICC (20 µA typ.), no 2 V operation, and different RCO logic polarity (active-high) | Requires redesign of cascade wiring and power filtering; unsuitable for low-voltage or ultra-low-power systems | Choose only when maximum counting speed is critical and supply voltage ≥4.5 V is guaranteed |
Compared with SN74HC590PWR and 74AC590SCX, the M74HC590RM13TR offers broader voltage range (2–6 V), lowest quiescent current (4 µA), and verified RCO polarity compatibility with ST's ecosystem - making it optimal for mixed-supply industrial controllers and battery-backed systems.
Availability
M74HC590RM13TR is available at Aetrix Electronics and suitable for industrial PLC timing, serial-to-parallel data latching, and LED display scan control requiring stable component supply across extended temperature ranges (–55 °C to +125 °C).
Supply support for M74HC590RM13TR 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
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, specializing in automotive, industrial, and power management ICs with strong analog and mixed-signal design capability.
The M74HC590RM13TR belongs to ST's high-speed CMOS logic family, engineered for reliable digital sequencing in harsh environments - emphasizing low power, noise resilience, and long-term supply stability for industrial automation.
FAQ
What is the function of the RCO pin?
The RCO (Ripple Carry Output) is an active-low combinational output that asserts when the internal 8-bit counter reaches its maximum value (255) and rolls over to zero. Its logic equation is QA′·QB′·QC′·QD′·QE′·QF′·QG′·QH′, enabling direct connection to the CCKEN input of a downstream counter for seamless cascading without external gates.
Can CCK and RCK be tied together?
Yes, CCK and RCK may be connected to a single clock source, but doing so causes the register outputs (QA–QH) to always reflect the previous count value - i.e., the register lags the counter by one cycle. This behavior is intentional and documented in the truth table; use separate clocks if simultaneous count and latch are required.
What is the maximum fan-out for QA–QH outputs?
At VCC = 4.5 V, each QA–QH output can drive up to 10 standard 74HC inputs (based on ±6 mA drive capability and 1 µA input leakage), assuming worst-case propagation delay and ambient temperature. For heavier loads or longer traces, verify voltage margins using the VOL/VOH specs at 6 mA sink/source.
Is the M74HC590RM13TR suitable for automotive applications?
No - while rated for –55 °C to +125 °C operating temperature, the M74HC590RM13TR is not AEC-Q100 qualified and lacks automotive-specific reliability testing, fault reporting, or PPAP documentation. It is intended for industrial, commercial, and general-purpose digital logic applications only.
M74HC590RM13TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- 74HC
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SO
M74HC590RM13TR FAQ
1.How can I place an order for M74HC590RM13TR through Aetrix?
Please submit a Request for Quotation (RFQ) for M74HC590RM13TR 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 M74HC590RM13TR reliable?
The price and inventory of M74HC590RM13TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M74HC590RM13TR is usually 5 days.
3.What payment methods are accepted for M74HC590RM13TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M74HC590RM13TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for M74HC590RM13TR?
M74HC590RM13TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your M74HC590RM13TR 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 M74HC590RM13TR?
For technical support, including M74HC590RM13TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M74HC590RM13TR requirements.
6.How does Aetrix verify that M74HC590RM13TR is sourced from the original manufacturer or authorized distributors?
All M74HC590RM13TR 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 M74HC590RM13TR meets industry standards.
7.What is the process for return or replacement of M74HC590RM13TR?
All M74HC590RM13TR units undergo pre-shipment inspection (PSI). If there is an issue with M74HC590RM13TR, 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 M74HC590RM13TR part is unused and in its original packaging.
Return procedure for M74HC590RM13TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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