My Inquiry
My Account
NXP Semiconductors ICM7555ID,602
- Part No.:
- ICM7555ID,602
- Manufacturer:
- NXP Semiconductors
- Category:
- Programmable Timers and Oscillators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
ICM7555ID,602.pdf
- Description:
- IC OSC SGL TIMER 500KHZ 8-SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,977
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ICM7555ID,602 from NXP Semiconductors is a CMOS precision timer IC operating as a direct functional replacement for NE/SE555 in most applications, delivering 80 µA typical supply current, 3 V to 16 V supply range, and 500 kHz guaranteed oscillator frequency. It supports both monostable (one-shot) and astable (free-running) modes with rail-to-rail output drive capability for TTL/CMOS loads, used in automotive-grade timing circuits requiring −40 °C to +85 °C operation.
For engineers reviewing the ICM7555ID,602 datasheet, ICM7555ID,602 pinout, ICM7555ID,602 application, or ICM7555ID,602 equivalent, key selection criteria include low input bias currents (20 pA typical), no required CONTROL_VOLTAGE decoupling, absence of supply crowbarring during transitions, temperature stability of 0.005 %/°C, and compatibility with high-impedance timing networks for extended time constants up to hours.
Technical Context
The ICM7555ID,602 implements dual high-impedance CMOS comparators feeding an SR flip-flop, with independent TRIGGER (active LOW) and THRESHOLD inputs controlling state transitions. Its internal discharge switch connects DISCHARGE (pin 7) directly to GND during timing intervals, enabling precise RC-based delay generation without external transistor buffering.
Unlike bipolar 555 timers, the ICM7555ID,602 eliminates crowbar current during output transitions and maintains stable operation without CONTROL_VOLTAGE decoupling due to >1012 Ω input impedance at that node. RESET (pin 4) dominates all other inputs and asserts active LOW to force OUTPUT (pin 3) LOW and enable DISCHARGE simultaneously.
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 applications with multi-year runtime using standard CR2032 cells. |
| Input Bias Current (Typ.) | 20 pA - permits use of >10 MΩ timing resistors for time constants exceeding 100 seconds with minimal error. |
| Max Oscillator Frequency | 500 kHz - sufficient for PWM control, tone generation, and clock synthesis up to audio band. |
| Output Drive | Rail-to-rail CMOS inverter - sources/sinks ≥3.2 mA at 5 V, directly driving 2 TTL loads or any CMOS logic family. |
| Temperature Range | −40 °C to +85 °C - qualified for under-hood automotive, industrial controls, and outdoor embedded systems. |
| Timing Stability | 0.005 %/°C at 25 °C - ensures <±0.5 % drift over full operating range, critical for precision delay and frequency accuracy. |
Pinout & Package
ICM7555ID,602 is housed in an SO8 plastic small outline package (SOT96-1), 3.9 mm body width, 8-lead surface-mount format compatible with standard reflow soldering profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (1) | Supply ground reference | Common return path for all internal circuitry; must be low-impedance connection to system ground plane. |
| TRIGGER (2) | Monostable start input | Active LOW signal initiates timing cycle; threshold is ~1/3 VDD, with 20 pA leakage enabling high-Z trigger sources. |
| OUTPUT (3) | Logic-level output driver | CMOS inverter output capable of sourcing/sinking ≥3.2 mA; rail-to-rail swing matches VDD and GND. |
| RESET (4) | Global inhibit input | Active LOW forces OUTPUT LOW and enables DISCHARGE; dominates TRIGGER/THRESHOLD for fail-safe shutdown. |
| CONTROL_VOLTAGE (5) | Internal comparator reference adjust | Direct access to 2/3 VDD threshold node; allows voltage-controlled frequency/delay modulation without external capacitor. |
| THRESHOLD (6) | Astable upper trip point | Senses capacitor voltage; transition at ~2/3 VDD terminates charging phase in astable mode. |
| DISCHARGE (7) | Timing capacitor discharge path | Open-drain NMOS switch tied to GND; discharges external capacitor during timing interval reset. |
| VDD (8) | Positive supply input | Accepts 3–16 V DC; no external decoupling required due to absence of supply crowbarring during switching. |
Key Features
| Feature | Design Value |
|---|---|
| NE/SE555 drop-in replacement | Pin-compatible and functionally identical in monostable/astable configurations, eliminating redesign effort. |
| No CONTROL_VOLTAGE decoupling | Eliminates 10 nF capacitor requirement, reducing BOM count and PCB area in space-constrained designs. |
| Ultra-low input currents | 20 pA typical TRIGGER/THRESHOLD/RESET leakage enables microampere-level standby power in battery systems. |
| No supply crowbarring | Removes need for local 100 nF ceramic decoupling capacitor, simplifying layout and improving noise immunity. |
| Adjustable duty cycle | Independent RA/RB resistor control in astable mode allows 55 % to 95 % duty cycle tuning without additional components. |
Applications
| Precision Timing Circuit | Pulse Width Modulation Generator |
|---|---|
Use Scenario: Generating accurate 100 ms to 10 s delays in automotive engine control modules for valve timing sequencing. IC Role / Device Role / Timing Role: Monostable one-shot providing deterministic delay between crankshaft position pulses and fuel injector activation. Use Value: 0.005 %/°C temperature stability ensures <±0.3 % timing error over −40 °C to +85 °C, meeting ASIL-B functional safety margins. |
Use Scenario: Controlling LED brightness in industrial HMI panels via analog-dimming interface. IC Role / Device Role / Timing Role: Astable oscillator generating 1–20 kHz PWM carrier with adjustable duty cycle for smooth luminance control. Use Value: Rail-to-rail output drives MOSFET gate directly; 500 kHz max frequency supports high-resolution dimming without audible noise. |
| Missing Pulse Detector | Sequential Timing Controller |
Use Scenario: Monitoring encoder signals in CNC motion controllers to detect stalled motor conditions. IC Role / Device Role / Timing Role: Monostable triggered by each encoder edge; missing pulse causes timeout and triggers fault interrupt. Use Value: 20 pA input bias allows direct connection to open-collector encoder outputs without pull-up loading, preserving signal integrity. |
Use Scenario: Coordinating multi-stage power-up sequencing in telecom base station power supplies. IC Role / Device Role / Timing Role: Cascaded monostables generating staggered enable signals for DC-DC converters and FPGA configuration. Use Value: 3–16 V supply range matches intermediate rail voltages; low 80 µA quiescent current minimizes standby power loss across 5+ stages. |
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 timer with 100 µA typical supply current, 2–15 V range, and 2 MHz max frequency; higher VDD max but wider temp range (−55 °C to +125 °C). | Preferred for extended temperature environments beyond +85 °C; less suitable for ultra-low-power battery systems due to higher IDD. | Select TLC555CDR when operating above +85 °C or requiring faster switching; retain ICM7555ID,602 for automotive-grade −40 °C to +85 °C with lowest quiescent current. |
| LMC555IMX/NOPB | TI LMC555 offers 10 µA typical supply current and rail-to-rail output, but only rated for 0 °C to +70 °C; lacks automotive qualification. | Optimized for portable medical devices and low-power IoT sensors where ambient temperature stays within commercial range. | Choose LMC555IMX/NOPB for sub-10 µA standby power in consumer electronics; use ICM7555ID,602 where automotive temperature compliance and proven reliability are mandatory. |
Compared with TLC555CDR and LMC555IMX/NOPB, the ICM7555ID,602 uniquely balances automotive temperature rating, ultra-low 80 µA supply current, and NE/SE555 pin compatibility-making it the optimal choice for cost-sensitive, safety-critical timing in vehicles and industrial equipment.
Availability
ICM7555ID,602 is available at Aetrix Electronics and suitable for automotive engine control units, industrial programmable logic controllers, and battery-powered test instrumentation requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for ICM7555ID,602 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 headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT markets.
The ICM7555ID,602 belongs to NXP's general-purpose analog timer product line, designed specifically to replace legacy bipolar 555 timers with CMOS efficiency while maintaining full functional and pin compatibility for seamless migration in automotive and industrial timing applications.
FAQ
What is the maximum supply voltage for the ICM7555ID,602?
The ICM7555ID,602 has an absolute maximum supply voltage (VDD) of 18 V per its limiting values table. However, its guaranteed operational range is 3 V to 16 V over the full −40 °C to +85 °C temperature range. Operating continuously at 18 V exceeds specification limits and may compromise long-term reliability or parametric performance.
Does the ICM7555ID,602 require a decoupling capacitor on the CONTROL_VOLTAGE pin?
No, the ICM7555ID,602 does not require a decoupling capacitor on the CONTROL_VOLTAGE (pin 5) due to its extremely high input impedance (>1012 Ω). This eliminates one passive component versus NE/SE555 designs and reduces PCB area and BOM cost without sacrificing stability.
Can the ICM7555ID,602 drive TTL logic directly?
Yes, the ICM7555ID,602 OUTPUT (pin 3) can drive at least two standard TTL loads when VDD ≥ 4.5 V, as confirmed by its output current specifications (≥3.2 mA sink/source capability) and VOL/VOH values. At 5 V supply, VOL ≤ 0.4 V and VOH ≥ 4.0 V meet TTL input thresholds reliably.
What is the minimum pulse width the ICM7555ID,602 TRIGGER input can reliably detect?
At VDD = 5 V and Tamb = +25 °C, the ICM7555ID,602 TRIGGER (pin 2) requires a minimum pulse width of approximately 100 ns to guarantee reliable detection, as shown in Figure 8 of the datasheet. Shorter pulses risk missed triggering, especially at temperature extremes or lower supply voltages.
Is the ICM7555ID,602 pin-compatible with the NE555?
Yes, the ICM7555ID,602 is pin-compatible with the NE555 in the SO8 package (SOT96-1), sharing identical pin numbering and functions: GND (1), TRIGGER (2), OUTPUT (3), RESET (4), CONTROL_VOLTAGE (5), THRESHOLD (6), DISCHARGE (7), and VDD (8). No PCB layout changes are needed for drop-in replacement.
ICM7555ID,602 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- 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,602 FAQ
1.How can I place an order for ICM7555ID,602 through Aetrix?
Please submit a Request for Quotation (RFQ) for ICM7555ID,602 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,602 reliable?
The price and inventory of ICM7555ID,602 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ICM7555ID,602 is usually 5 days.
3.What payment methods are accepted for ICM7555ID,602?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ICM7555ID,602 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ICM7555ID,602?
ICM7555ID,602 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ICM7555ID,602 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,602?
For technical support, including ICM7555ID,602 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ICM7555ID,602 requirements.
6.How does Aetrix verify that ICM7555ID,602 is sourced from the original manufacturer or authorized distributors?
All ICM7555ID,602 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,602 meets industry standards.
7.What is the process for return or replacement of ICM7555ID,602?
All ICM7555ID,602 units undergo pre-shipment inspection (PSI). If there is an issue with ICM7555ID,602, 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,602 part is unused and in its original packaging.
Return procedure for ICM7555ID,602:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ICM7555ID,602 Tags
-
NE555DR
Texas Instruments
-
SA555DR
Texas Instruments
-
NA555DR
Texas Instruments
-
SE555DR
Texas Instruments
-
NE555P
Texas Instruments
-
CD4541BM96
Texas Instruments
-
CD4541BE
Texas Instruments
-
TLC555QDR
Texas Instruments
-
TLC555IDR
Texas Instruments
-
TLC555QDRQ1
Texas Instruments
-
TPL5010DDCR
Texas Instruments
-
TLC555CP
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
