My Inquiry
My Account
NXP Semiconductors ICM7555CN,602
- Part No.:
- ICM7555CN,602
- Manufacturer:
- NXP Semiconductors
- Category:
- Programmable Timers and Oscillators
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
ICM7555CN,602.pdf
- Description:
- IC OSC SINGLE TIMER 500KHZ 8-DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,534
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ICM7555CN,602 from NXP Semiconductors is a CMOS precision timer IC designed as a direct functional replacement for the NE/SE555 in most applications, delivering low supply current (80 µA typ), wide 3 V to 16 V supply range, and rail-to-rail output swing. It operates in both astable and monostable modes, supports timing from microseconds to hours, and enables precise pulse width modulation in industrial control circuits.
For engineers reviewing the ICM7555CN,602 datasheet, ICM7555CN,602 pinout, ICM7555CN,602 application, or ICM7555CN,602 equivalent, this device offers verified low-input-current timing (20 pA trigger/threshold), guaranteed 500 kHz oscillator frequency, stable operation without CONTROL_VOLTAGE decoupling, and compatibility with high-impedance RC networks for extended time constants.
Technical Context
The ICM7555CN,602 implements dual high-impedance CMOS comparators feeding an SR flip-flop, with independent TRIGGER (active LOW) and THRESHOLD inputs controlling capacitor charge/discharge via an open-drain DISCHARGE output. Its internal logic avoids crowbarring supply current during output transitions, eliminating need for local supply decoupling capacitors.
Timing accuracy relies on fixed 1/3 VDD and 2/3 VDD comparator thresholds referenced to VDD, enabling supply-voltage-independent oscillation frequency in astable mode. The CONTROL_VOLTAGE pin allows external adjustment of these thresholds for frequency modulation or delay tuning, while RESET provides dominant active-LOW inhibition of the flip-flop state.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3 V to 16 V - supports single-supply operation across battery-powered and industrial rails without level-shifting. |
| Supply Current (typ) | 80 µA at 25 °C - enables ultra-low-power timing in always-on sensor nodes and energy-harvesting systems. |
| Trigger/Threshold Input Current (typ) | 20 pA - permits use of >10 MΩ timing resistors for hour-scale delays without leakage-induced error. |
| Max Oscillator Frequency | 500 kHz - sufficient for PWM generation up to audio range and fast-response timing control loops. |
| Output Drive | Rail-to-rail CMOS inverter - sources/sinks ≥3.2 mA at 5 V, directly driving TTL loads or interfacing with 3.3 V/5 V logic without buffers. |
| Temperature Stability | 0.005 %/°C at 25 °C - ensures <±0.5 % frequency drift over 0 °C to 70 °C operating range. |
| Operating Temperature | 0 °C to +70 °C - validated for commercial-grade embedded instrumentation and consumer electronics. |
Pinout & Package
DIP8 plastic dual in-line package (300 mil, SOT97-1), 0.1 inch lead pitch, through-hole mountable with standard 0.025 inch PCB holes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pin 1) | Supply ground reference | Common return path for all internal circuitry; must be low-impedance connection to system ground plane. |
| TRIGGER (Pin 2) | Monostable start input | Active-LOW edge-sensitive input that initiates timing cycle when voltage drops below 1/3 VDD. |
| OUTPUT (Pin 3) | Logic-level output driver | CMOS inverter output capable of sourcing/sinking ≥3.2 mA; swings rail-to-rail (0 V to VDD). |
| RESET (Pin 4) | Timer inhibit control | Active-LOW asynchronous reset that forces OUTPUT LOW and DISCHARGE ON regardless of other inputs. |
| CONTROL_VOLTAGE (Pin 5) | Threshold voltage adjust | High-impedance node allowing external voltage to override internal 2/3 VDD and 1/3 VDD comparator references. |
| THRESHOLD (Pin 6) | Capacitor upper-voltage sense | Input monitoring capacitor voltage; triggers reset when exceeding 2/3 VDD in monostable or astable modes. |
| DISCHARGE (Pin 7) | Timing capacitor discharge switch | Open-drain NMOS output that sinks current to ground during capacitor discharge phase. |
| VDD (Pin 8) | Positive supply input | Accepts 3 V–16 V DC; no external decoupling required due to absence of supply crowbarring currents. |
Key Features
| Feature | Design Value |
|---|---|
| Direct NE/SE555 replacement | Pin-compatible DIP8 layout and identical functional behavior, enabling drop-in upgrade without PCB changes. |
| No CONTROL_VOLTAGE decoupling | Eliminates external 10 nF capacitor requirement, reducing BOM count and board area in cost-sensitive designs. |
| High-impedance timing inputs | 20 pA typical leakage enables microampere-scale timing networks, extending monostable delays beyond 1000 seconds. |
| Stable astable operation | Frequency variation ≤1.0 % over supply range and ≤50 ppm/°C at 5 V enables precision clock generation without trimming. |
| TTL/CMOS output compatibility | Guaranteed 3.2 mA sink/source at 5 V meets LS-TTL fan-out requirements and interfaces directly with 3.3 V logic via level-tolerant inputs. |
Applications
| Precision Timing | Pulse Generation |
|---|---|
Use Scenario: Generating accurate 1 s intervals for real-time clock calibration in portable test equipment. IC Role / Device Role / Timing Role: Monostable one-shot producing fixed-duration pulses synchronized to external events. Use Value: 20 pA input leakage ensures <0.1 % timing error over 1 s using 10 MΩ/100 nF network, eliminating manual calibration. |
Use Scenario: Creating variable-duty-cycle square waves for LED brightness control in automotive interior lighting. IC Role / Device Role / Timing Role: Astable multivibrator with adjustable RA/RB ratio setting PWM duty cycle from 5 % to 95 %. Use Value: Rail-to-rail output drives MOSFET gate directly; 500 kHz max frequency supports high-frequency dimming with minimal EMI. |
| Time Delay Generation | Missing Pulse Detector |
Use Scenario: Introducing 500 ms safety interlock delay between motor enable signal and power stage activation in industrial actuators. IC Role / Device Role / Timing Role: Monostable timer triggered by rising edge of enable signal, holding output HIGH for precise interval. Use Value: 3 V–16 V supply range allows direct interface with 12 V control bus; no external regulators needed. |
Use Scenario: Monitoring encoder quadrature signals in CNC motion controllers to detect stalled axis conditions. IC Role / Device Role / Timing Role: Astable oscillator gated by incoming pulses; output goes LOW if pulse train stops for >100 ms. Use Value: RESET pin enables immediate fault response; 20 pA input current prevents false triggering from cable leakage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar CMOS timer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NE555P | Higher 10 mA supply current; 500 nA trigger current; requires CONTROL_VOLTAGE decoupling; 100 kHz max frequency. | Less suitable for battery-powered or high-precision timing; needs additional 10 nF capacitor and supply bypass. | Select NE555P only when legacy design reuse or extreme cost sensitivity outweighs power/performance trade-offs. |
| LMC555CN | Similar 100 µA supply current; 0.1 pA input leakage; 3 MHz max frequency; wider 1.5 V–15 V supply range. | Better for sub-2 V systems and higher-frequency PWM; pinout differs (DIP8 but pin 5 and 7 swapped), requiring PCB redesign. | Choose LMC555CN for new designs needing lower voltage operation or faster timing, accepting layout change. |
Compared with NE555P, the ICM7555CN,602 reduces supply current by 125× and eliminates two external capacitors; versus LMC555CN, it retains identical DIP8 pinout but trades 6× lower max frequency for proven industrial reliability and simpler migration from 555-based designs.
Availability
ICM7555CN,602 is available at Aetrix Electronics and suitable for precision timing, pulse generation, and time delay generation requiring stable component supply across commercial temperature ranges.
Supply support for ICM7555CN,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 applications.
The ICM7555CN,602 belongs to NXP's general-purpose analog timer product line, engineered to replace bipolar 555 timers with CMOS efficiency while maintaining full functional compatibility for industrial control, instrumentation, and power management systems.
FAQ
What is the maximum supply voltage rating for the ICM7555CN,602?
The ICM7555CN,602 has an absolute maximum supply voltage (VDD) of 18 V per its limiting values table. Continuous operation above 16 V is not recommended, as the guaranteed performance specifications (e.g., supply current, timing accuracy) are specified only up to 16 V. Exceeding 18 V risks permanent damage due to internal SCR latch-up.
Does the ICM7555CN,602 require a decoupling capacitor on the CONTROL_VOLTAGE pin?
No, the ICM7555CN,602 does not require a decoupling capacitor on the CONTROL_VOLTAGE pin. Its CMOS input structure provides extremely high impedance (typical input current 20 pA), eliminating the need for the 10 nF capacitor commonly used with bipolar 555 timers. This simplifies layout and reduces BOM count in designs migrating from NE555.
Can the ICM7555CN,602 drive TTL logic directly?
Yes, the ICM7555CN,602 can drive TTL logic directly. At VDD = 5 V, its OUTPUT pin sources ≥1.0 mA and sinks ≥3.2 mA, meeting the input current requirements of standard TTL (74LS series). Its rail-to-rail swing ensures compatible HIGH/LOW voltage levels, and no series resistor or level shifter is needed for direct interface.
What is the function of the DISCHARGE pin on the ICM7555CN,602?
The DISCHARGE pin (Pin 7) on the ICM7555CN,602 is an open-drain NMOS transistor output used to discharge the external timing capacitor during the discharge phase of astable or monostable operation. It connects to ground when active, allowing precise control of capacitor discharge rate via external resistor RB, which determines timing in conjunction with RA and C.
Is the ICM7555CN,602 pin-compatible with the NE555P in DIP8 packages?
Yes, the ICM7555CN,602 is fully pin-compatible with the NE555P in 8-pin DIP packages. Both share identical pin numbering, electrical functions (GND, TRIGGER, OUTPUT, RESET, CONTROL_VOLTAGE, THRESHOLD, DISCHARGE, VDD), and mechanical footprint (SOT97-1). This enables direct replacement without PCB modification in existing 555-based designs.
ICM7555CN,602 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Type:
- 555 Type, Timer/Oscillator (Single)
- Count:
- -
- Frequency:
- 500kHz
- Voltage - Supply:
- 3V ~ 16V
- Current - Supply:
- 180 µA
- Operating Temperature:
- 0°C ~ 70°C
- Supplier Device Package:
- 8-DIP
- Mounting Type:
- Through Hole
- Grade:
- -
- Qualification:
- -
ICM7555CN,602 FAQ
1.How can I place an order for ICM7555CN,602 through Aetrix?
Please submit a Request for Quotation (RFQ) for ICM7555CN,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 ICM7555CN,602 reliable?
The price and inventory of ICM7555CN,602 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ICM7555CN,602 is usually 5 days.
3.What payment methods are accepted for ICM7555CN,602?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ICM7555CN,602 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ICM7555CN,602?
ICM7555CN,602 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ICM7555CN,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 ICM7555CN,602?
For technical support, including ICM7555CN,602 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ICM7555CN,602 requirements.
6.How does Aetrix verify that ICM7555CN,602 is sourced from the original manufacturer or authorized distributors?
All ICM7555CN,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 ICM7555CN,602 meets industry standards.
7.What is the process for return or replacement of ICM7555CN,602?
All ICM7555CN,602 units undergo pre-shipment inspection (PSI). If there is an issue with ICM7555CN,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 ICM7555CN,602 part is unused and in its original packaging.
Return procedure for ICM7555CN,602:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ICM7555CN,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…
