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NXP Semiconductors ICM7555ID/01,118
- Part No.:
- ICM7555ID/01,118
- Manufacturer:
- NXP Semiconductors
- Category:
- Programmable Timers and Oscillators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
ICM7555ID/01,118.pdf
- Description:
- IC OSC SGL TIMER 500KHZ 8-SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,740
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Product details
Overview
ICM7555ID/01,118 from NXP Semiconductors is a CMOS timer IC engineered as a direct functional replacement for NE/SE555 in most applications, delivering precision timing via monostable or astable operation. It operates across 3 V to 16 V, draws only 80 µA typical supply current, features 20 pA typical trigger/threshold/reset input currents, and supports up to 500 kHz oscillator frequency - enabling accurate time delays from microseconds to hours in automotive-grade environments (−40 °C to +85 °C).
For engineers reviewing the ICM7555ID/01,118 datasheet, ICM7555ID/01,118 pinout, ICM7555ID/01,118 application, or ICM7555ID/01,118 equivalent, this page delivers verified electrical parameters, SO8 package mapping, confirmed automotive temperature rating, real-world timing accuracy data (±1.0% frequency stability), and validated alternatives for legacy 555-based designs requiring low-power, rail-to-rail output, and high-impedance timing networks.
Technical Context
The ICM7555ID/01,118 implements dual high-impedance CMOS comparators driving an SR flip-flop and CMOS output inverter, eliminating crowbar current during transitions. Its internal voltage thresholds are fixed at 1/3 VDD (TRIGGER) and 2/3 VDD (THRESHOLD), with CONTROL_VOLTAGE pin allowing external modulation of trip points.
Unlike bipolar 555 timers, it requires no CONTROL_VOLTAGE decoupling capacitor and supports timing networks with resistances up to 100 kΩ and capacitances down to 0.1 µF - enabling stable operation with high-impedance RC networks while maintaining ±50 ppm/°C temperature drift at 5 V supply.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3 V to 16 V - supports single-supply operation across industrial and automotive rails without level-shifting. |
| Supply Current (Typ.) | 80 µA - enables battery-powered timing circuits with multi-year runtime on coin cells. |
| Input Current (Typ.) | 20 pA at TRIGGER/THRESHOLD/RESET - permits use of >10 MΩ timing resistors without leakage-induced timing error. |
| Oscillator Frequency | Up to 500 kHz - sufficient for PWM generation, clock synthesis, and pulse-width modulation in embedded control. |
| Frequency Stability | ±1.0% - ensures consistent timing accuracy across voltage and load variations in production systems. |
| Temperature Range | −40 °C to +85 °C - qualified for under-hood automotive, industrial PLC, and outdoor equipment deployment. |
| Output Drive | Rail-to-rail CMOS - drives TTL loads directly and swings fully to VDD/GND for clean logic interfacing. |
Pinout & Package
ICM7555ID/01,118 is supplied in an SO8 (SOT96-1) plastic small outline package, 8-lead, 3.9 mm body width, with gull-wing leads compatible with standard reflow soldering profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pin 1) | Supply ground reference | Return path for all internal circuitry; must be low-impedance connection to system ground plane. |
| TRIGGER (Pin 2) | Monostable start input | Active-LOW signal initiating timing cycle; threshold at ~0.31×VDD enables noise-immune edge detection. |
| OUTPUT (Pin 3) | Logic-level output driver | CMOS inverter output sourcing/sinking ≥3.2 mA; rail-to-rail swing eliminates need for external level shifters. |
| RESET (Pin 4) | Timer inhibit input | Active-LOW hard reset overriding all other inputs; high-impedance (>1012 Ω) prevents loading of control logic. |
| CONTROL_VOLTAGE (Pin 5) | Threshold voltage adjust | Direct access to comparator reference node; allows external voltage modulation of timing thresholds for FM or variable-delay applications. |
| THRESHOLD (Pin 6) | Capacitor upper-voltage sense | Detects when timing capacitor reaches ~0.65×VDD to terminate charge phase in astable mode. |
| DISCHARGE (Pin 7) | Timing capacitor discharge path | Open-drain NMOS switch sinking up to 10 mA; used to discharge external capacitor during timing cycle. |
| VDD (Pin 8) | Positive supply input | Accepts 3–16 V DC; no external decoupling required due to absence of supply-current transients during output switching. |
Key Features
| Feature | Design Value |
|---|---|
| NE/SE555 drop-in replacement | Maintains identical pinout and functional behavior while eliminating mandatory CONTROL_VOLTAGE decoupling and power-supply bypass capacitors. |
| Ultra-low input bias current | 20 pA typical enables timing with >100 MΩ resistors - extending delay range beyond 1 hour without capacitor leakage dominance. |
| No crowbar current | Eliminates 300–400 mA supply spikes during output transitions, removing need for local 100 nF ceramic decoupling at VDD pin. |
| Wide supply voltage range | 3 V to 16 V operation supports direct interface with Li-ion, 5 V logic, and 12 V automotive systems without regulators or LDOs. |
| Rail-to-rail output | Swings within 0.1 V of VDD and GND at 3.2 mA sink/source - ensures full logic-level compatibility with CMOS and TTL families. |
Applications
| Precision Timing Circuits | Pulse Width Modulation (PWM) |
|---|---|
Use Scenario: Generating stable, repeatable time delays in sensor wake-up controllers and watchdog timeout circuits. IC Role / Device Role / Timing Role: Monostable one-shot providing programmable delay between trigger event and system response. Use Value: 0.005 %/°C temperature stability and 20 pA input leakage ensure <±0.5% timing error over −40 °C to +85 °C without calibration. |
Use Scenario: Controlling motor speed or LED brightness in battery-powered portable devices. IC Role / Device Role / Timing Role: Astable oscillator generating variable-duty-cycle square wave using two external resistors and one capacitor. Use Value: Adjustable duty cycle (via RA/RB ratio) and rail-to-rail output enable direct drive of MOSFET gates without external buffers. |
| Missing Pulse Detection | Sequential Timing Control |
Use Scenario: Monitoring serial data streams or encoder outputs for communication loss or mechanical stall conditions. IC Role / Device Role / Timing Role: Monostable triggered by each incoming pulse; output remains HIGH until next pulse arrives within timeout window. Use Value: 500 kHz maximum frequency and sub-microsecond minimum trigger pulse width support detection of 1 MHz+ signal interruptions. |
Use Scenario: Coordinating multi-stage power-up sequencing in FPGA or microcontroller-based systems. IC Role / Device Role / Timing Role: Cascaded monostables generating staggered enable signals with precise inter-stage delays. Use Value: Low supply current (80 µA) and wide voltage range allow integration into always-on power management subsystems without burdening main supply. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar CMOS timer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC555CDR | TI CMOS 555 with 100 µA typical supply current; 10 pA input current; 2 MHz max frequency; SO8 package. | Higher max frequency supports faster PWM and clock generation but lacks automotive temperature rating (0 °C to 70 °C only). | Select TLC555CDR when >500 kHz operation or tighter input current spec (<10 pA) is required and ambient temperature stays within commercial range. |
| LMC555IMX/NOPB | TI LMC555 with 100 µA typical supply current; 0.2 pA input current; 1 MHz max frequency; SO8 package; −40 °C to +105 °C rating. | Lower input current enables ultra-high-Z timing networks (>1 GΩ); wider temp range suits extended industrial use but has higher quiescent current. | Select LMC555IMX/NOPB for extreme-impedance timing or extended temperature operation where sub-100 pA leakage is critical. |
Compared with TLC555CDR and LMC555IMX/NOPB, the ICM7555ID/01,118 offers optimal balance of automotive temperature compliance, ultra-low 80 µA supply current, and proven 555-pin-compatible design - making it the preferred choice for cost-sensitive, long-life automotive and industrial timing where 500 kHz bandwidth suffices.
Availability
ICM7555ID/01,118 is available at Aetrix Electronics and suitable for precision timing circuits, pulse generation systems, and automotive sensor interface modules requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for ICM7555ID/01,118 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
NXP Semiconductors is a global semiconductor company specializing in secure connectivity solutions for automotive, industrial, and IoT applications, with leadership in analog, power management, and timing products.
The ICM7555ID/01,118 belongs to NXP's general-purpose CMOS timer product line, designed specifically to replace legacy bipolar 555 timers in automotive and industrial systems where low power, high accuracy, and extended temperature operation are essential.
FAQ
What is the operating temperature range of the ICM7555ID/01,118?
The ICM7555ID/01,118 is rated for operation from −40 °C to +85 °C, meeting automotive-grade environmental requirements. This specification is confirmed in the NXP datasheet ordering information table for the ICM7555ID variant and applies identically to the ICM7555ID/01,118 orderable part number.
Does the ICM7555ID/01,118 require a decoupling capacitor on the CONTROL_VOLTAGE pin?
No, the ICM7555ID/01,118 does not require a decoupling capacitor on the CONTROL_VOLTAGE pin due to its CMOS input structure and extremely high input impedance (≥1012 Ω). This is a key differentiator from the NE/SE555 and is explicitly stated in the NXP datasheet Section 11.1 and Feature list.
What package type is used for the ICM7555ID/01,118?
The ICM7555ID/01,118 uses the SO8 (SOT96-1) plastic small outline package with 8 gull-wing leads and 3.9 mm body width. This is confirmed in the NXP datasheet Table 1 "Ordering information" for the ICM7555ID type number and matches the pin configuration shown in Figure 2.
Can the ICM7555ID/01,118 directly replace a NE555 in an existing PCB layout?
Yes, the ICM7555ID/01,118 is pin-compatible with the NE555 and functions as a direct replacement in most circuits. However, external 0.01 µF CONTROL_VOLTAGE and 100 nF VDD decoupling capacitors can typically be omitted due to the ICM7555ID/01,118's CMOS architecture and absence of crowbar current.
What is the maximum guaranteed oscillator frequency for the ICM7555ID/01,118?
The ICM7555ID/01,118 guarantees a maximum oscillator frequency of 500 kHz in astable mode, as specified in Table 5 "Characteristics" of the NXP datasheet under parameter fosc. This value is tested and guaranteed across the full operating temperature and voltage range.
ICM7555ID/01,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- 555 Type, Timer/Oscillator (Single)
- Count:
- -
- Frequency:
- 500kHz
- Voltage - Supply:
- 3V ~ 16V
- Current - Supply:
- 180 µA
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 8-SO
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
ICM7555ID/01,118 FAQ
1.How can I place an order for ICM7555ID/01,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for ICM7555ID/01,118 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 ICM7555ID/01,118 reliable?
The price and inventory of ICM7555ID/01,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ICM7555ID/01,118 is usually 5 days.
3.What payment methods are accepted for ICM7555ID/01,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ICM7555ID/01,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ICM7555ID/01,118?
ICM7555ID/01,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ICM7555ID/01,118 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 ICM7555ID/01,118?
For technical support, including ICM7555ID/01,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ICM7555ID/01,118 requirements.
6.How does Aetrix verify that ICM7555ID/01,118 is sourced from the original manufacturer or authorized distributors?
All ICM7555ID/01,118 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 ICM7555ID/01,118 meets industry standards.
7.What is the process for return or replacement of ICM7555ID/01,118?
All ICM7555ID/01,118 units undergo pre-shipment inspection (PSI). If there is an issue with ICM7555ID/01,118, 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 ICM7555ID/01,118 part is unused and in its original packaging.
Return procedure for ICM7555ID/01,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ICM7555ID/01,118 Tags
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NE555DR
Texas Instruments
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SA555DR
Texas Instruments
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NA555DR
Texas Instruments
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SE555DR
Texas Instruments
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NE555P
Texas Instruments
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CD4541BM96
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CD4541BE
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TLC555QDR
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TLC555IDR
Texas Instruments
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TLC555QDRQ1
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TPL5010DDCR
Texas Instruments
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TLC555CP
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