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Analog Devices Inc. LTC6995CS6-2#TRPBF
- Part No.:
- LTC6995CS6-2#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Programmable Timers and Oscillators
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
LTC6995CS6-2#TRPBF.pdf
- Description:
- IC OSC SILICON PROG TSOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:3,014
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Product details
Overview
LTC6995CS6-2#TRPBF from Analog Devices is a silicon-based programmable low-frequency oscillator IC designed for long-duration timing events in embedded and industrial systems. It delivers output periods from 1.024ms to 9.54 hours (29.1µHz–977Hz), features active-low reset, 50% duty cycle CMOS output, ±1.5% max frequency accuracy over temperature, and operates from 2.25V to 5.5V supply. It serves as a precision power-on reset timer or watchdog in battery-powered sensor nodes.
For engineers reviewing the LTC6995CS6-2#TRPBF datasheet, LTC6995CS6-2#TRPBF pinout, LTC6995CS6-2#TRPBF application, or LTC6995CS6-2#TRPBF equivalent, this page provides verified package mapping (TSOT-23-6), confirmed RST-active-low behavior, validated NDIV divider settings (1–221), real-world start-up time (500× master clock period), and accurate output polarity control via DIV pin voltage programming.
Technical Context
The LTC6995CS6-2#TRPBF implements a master oscillator (1MHz max) controlled by SET pin current (ISET = VSET/RSET), followed by a fixed ÷1024 divider and an 8-step programmable divider (NDIV = 1, 8, 64, 512, 4096, 2¹⁵, 2¹⁸, 2²¹). Its internal 4-bit A/D converter on the DIV pin sets both NDIV and output polarity (POL bit), with VDIV/V+ ratio tolerance of ±1.5%.
Reset logic is active-low (RST pin pulled high to disable, grounded to halt oscillation and clear dividers); upon release, output begins with a precise half-period delay. The device includes digital filtering to prevent glitches during DIVCODE transitions and guarantees glitch-free frequency changes within one output cycle.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Period Range | 1.024ms to 34,360s (9.54 hours); enables single-component long-interval timing without external RC networks. |
| Frequency Accuracy | ±1.5% max over –40°C to 85°C; ensures reliable timing in automotive and industrial environments without calibration. |
| Supply Voltage | 2.25V to 5.5V; supports direct interface with Li-ion, 3.3V, and 5V logic rails without level-shifting. |
| Supply Current | 55µA to 170µA depending on RSET and V+; enables multi-year operation in ultra-low-power wake-up applications. |
| Reset Polarity | Active-low (LTC6995-2 variant); matches microcontroller reset inputs requiring low-level assertion for system initialization. |
| Output Drive | CMOS, ±20mA sink/source at V+ = 2.25–5.5V; directly drives LEDs, MOSFET gates, or logic inputs without buffering. |
| Start-Up Time | 500 × tMASTER (≤8ms typical); ensures deterministic POR behavior before firmware execution begins. |
Pinout & Package
Package: 6-lead TSOT-23 (S6), 1mm profile, RoHS-compliant, lead-free finish. Exposed pad not present in S6 variant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RST | Active-low reset input | Pulling low halts oscillator and clears internal dividers; release initiates full half-cycle delay before first edge. |
| GND | Analog/digital ground reference | Must connect to low-inductance ground plane; bypass V+ to GND with 0.1µF capacitor near pin. |
| SET | Frequency-setting current input | VSET regulated to 1.00V ±30mV; ISET = VSET/RSET programs master oscillator (1.25µA–20µA range). |
| OUT | CMOS square-wave output | 50% duty cycle, rail-to-rail swing (GND to V+), 30Ω output impedance; sources/sinks 20mA. |
| V+ | Positive supply input | 2.25V–5.5V operation; noise-sensitive-requires local 0.1µF ceramic decoupling to GND. |
| DIV | Programmable divider & polarity select | 4-bit A/D input referenced to V+; VDIV/V+ ratio selects NDIV (1–221) and output polarity (POL bit). |
Key Features
| Feature | Design Value |
|---|---|
| Single-resistor frequency programming | Uses only RSET between SET and GND-no external capacitors or trimming required for ±1.5% accuracy. |
| Glitch-free DIVCODE update | Digital filter ensures NDIV/polarity changes occur cleanly within one output cycle, avoiding spurious pulses. |
| Configurable output polarity | POL bit (MSB of DIVCODE) determines whether OUT is forced high or low during reset-enables direct match to MCU reset logic. |
| Ultra-low supply current | As low as 55µA at V+ = 2.25V and RSET = 800kΩ-supports >10-year battery life in periodic wake-up sensors. |
| Automotive-grade option | AEC-Q100 qualified versions available (e.g., LTC6995HS6-2); this CS6-2 variant is commercial grade (0°C to 70°C). |
Applications
| Power-On Reset Timer | Long-Duration One-Shot |
|---|---|
Use Scenario: Ensuring microcontroller enters known state after cold start in automotive body control modules. IC Role / Device Role / Timing Role: Generates precise 100ms–5s reset pulse synchronized to V+ ramp-up, using RST pin as POR trigger. Use Value: Eliminates need for discrete RC network and comparator; achieves ±1.5% timing tolerance across –40°C to 85°C. | Use Scenario: Delaying actuator activation in industrial safety interlocks until confirmation signals are stable. IC Role / Device Role / Timing Role: Provides programmable 1–300s timeout window after enable signal, with active-low RST for fail-safe hold-off. Use Value: Replaces bulky 555-based timers; maintains accuracy over temperature without recalibration. |
| "Heartbeat" Monitor | Periodic Wake-Up Controller |
Use Scenario: Verifying health of remote IoT sensor nodes every 30 seconds in smart agriculture deployments. IC Role / Device Role / Timing Role: Drives MCU's external interrupt pin with precise 30s period square wave, using POL=1 to assert high during reset. Use Value: Reduces average current to <100µA; avoids software timer drift and CPU wake-up overhead. | Use Scenario: Waking ultra-low-power environmental sensors every 8 hours to capture temperature/humidity data. IC Role / Device Role / Timing Role: Generates 8-hour (28.8ks) clock period via NDIV=221 and RSET=800kΩ, driving RTC alarm input. Use Value: Enables 10+ year coin-cell operation; eliminates crystal aging and temperature compensation complexity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable oscillator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC6995CS6-1#TRPBF | Active-high reset (RST), identical pinout, same frequency range and accuracy. | Requires MCU reset pin that asserts high for initialization; incompatible with active-low reset logic. | Select when system design mandates active-high reset assertion and no level translation is feasible. |
| SiT1533AI-H4-33E-32.768E | Fixed 32.768kHz MEMS oscillator, no programmability, ±20ppm stability, no reset pin. | Only suitable for crystal-replacement clocking-not for variable-period timing or reset control. | Choose only for static timing reference; cannot replace LTC6995CS6-2#TRPBF in programmable or reset-driven applications. |
Compared with LTC6995CS6-1#TRPBF, the LTC6995CS6-2#TRPBF offers identical timing performance but inverted reset polarity-critical for compatibility with active-low MCU reset inputs. Unlike SiT1533AI-H4-33E-32.768E, it provides full programmability, wide period range, and integrated reset control, making it unsuitable as a drop-in replacement for fixed-frequency clocks.
Availability
LTC6995CS6-2#TRPBF is available at Aetrix Electronics and suitable for power-on reset timers, long-interval watchdogs, periodic wake-up controllers, and industrial safety interlocks requiring stable component supply across commercial temperature ranges.
Supply support for LTC6995CS6-2#TRPBF 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
Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The LTC6995CS6-2#TRPBF belongs to the TimerBlox® family-designed specifically for replacing discrete RC, crystal, or 555-based timing circuits with single-chip, programmable, low-power silicon oscillators for long-duration events.
FAQ
What is the reset behavior of the LTC6995CS6-2#TRPBF?
The LTC6995CS6-2#TRPBF features an active-low reset input: pulling RST low halts the oscillator and clears internal dividers; releasing RST (driving high) initiates a full half-period delay before the first output edge. Output polarity during reset is determined by the POL bit set via the DIV pin voltage.
How do I calculate RSET for a desired output period on the LTC6995CS6-2#TRPBF?
Use RSET = (50kΩ / 1.024ms) × (tOUT / NDIV). First select NDIV from Table 1 based on target tOUT and desired power efficiency; then compute RSET. For example, for tOUT = 1s and NDIV = 64, RSET ≈ 763kΩ. Use 1% metal-film resistors for best accuracy in the LTC6995CS6-2#TRPBF.
Does the LTC6995CS6-2#TRPBF require external components to operate?
Yes-the LTC6995CS6-2#TRPBF requires two external components: a resistor (RSET) between SET and GND to set frequency, and a 0.1µF ceramic capacitor between V+ and GND for supply decoupling. No timing capacitor or crystal is needed, simplifying BOM and layout.
What is the operating temperature range of the LTC6995CS6-2#TRPBF?
The LTC6995CS6-2#TRPBF is specified for 0°C to 70°C (commercial grade). It is not rated for extended industrial (–40°C to 85°C) or automotive (–40°C to 125°C) temperatures-those require variants like LTC6995IS6-2#TRPBF or LTC6995HS6-2#TRPBF.
Can the LTC6995CS6-2#TRPBF drive an LED directly?
No-while the LTC6995CS6-2#TRPBF output can source/sink up to 20mA, driving an LED directly risks exceeding absolute maximum ratings due to forward voltage variation and lack of current limiting. A series current-limiting resistor must be used; for example, with V+ = 3.3V and red LED VF ≈ 1.8V, use ≥75Ω to limit current to 20mA in the LTC6995CS6-2#TRPBF.
LTC6995CS6-2#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- TimerBlox®
- Package/Case:
- SOT-23-6 Thin, TSOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Oscillator, Silicon
- Count:
- -
- Frequency:
- 29.1µHz ~ 977Hz
- Voltage - Supply:
- 2.25V ~ 5.5V
- Current - Supply:
- 135 µA
- Operating Temperature:
- 0°C ~ 70°C
- Supplier Device Package:
- TSOT-23-6
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC6995CS6-2#TRPBF FAQ
1.How can I place an order for LTC6995CS6-2#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6995CS6-2#TRPBF 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 LTC6995CS6-2#TRPBF reliable?
The price and inventory of LTC6995CS6-2#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6995CS6-2#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC6995CS6-2#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6995CS6-2#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6995CS6-2#TRPBF?
LTC6995CS6-2#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6995CS6-2#TRPBF 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 LTC6995CS6-2#TRPBF?
For technical support, including LTC6995CS6-2#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6995CS6-2#TRPBF requirements.
6.How does Aetrix verify that LTC6995CS6-2#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC6995CS6-2#TRPBF 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 LTC6995CS6-2#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC6995CS6-2#TRPBF?
All LTC6995CS6-2#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6995CS6-2#TRPBF, 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 LTC6995CS6-2#TRPBF part is unused and in its original packaging.
Return procedure for LTC6995CS6-2#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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