My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX792TCPE
- Part No.:
- MAX792TCPE
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 16-DIP (0.300", 7.62mm)
- Datasheet:
-
MAX792TCPE.pdf
- Description:
- IC SUPERVISOR MCU AND NV MEMORY
- Quantity:
- Payment:
- Shipping:
Inventory:1,052
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX792TCPE from Maxim Integrated is a microprocessor supervisory circuit providing reset generation, manual reset input, two-stage power-fail warning, watchdog timer with pulsed fault output, and chip-enable gating for nonvolatile memory protection. It features 4.62V internal reset threshold, 200ms reset timeout, guaranteed RESET validity down to VCC = 1V, and operates over 0°C to +70°C in 16-pin plastic DIP package. Used in embedded controllers and critical µP power monitoring systems.
For engineers reviewing the MAX792TCPE datasheet, MAX792TCPE pinout, MAX792TCPE application, or MAX792TCPE equivalent, this page delivers verified functional identity, confirmed pin roles, exact reset/low-line thresholds, watchdog timing behavior, CE gating propagation delay, and validated alternative options - all specific to the MAX792TCPE variant with T-suffix (3.06V reset threshold) and CPE packaging.
Technical Context
The MAX792TCPE implements dual-comparator supervision: a reset comparator with ±2% threshold accuracy (3.06V nominal) and a low-line comparator set 120mV above reset threshold, both configurable via internal reference or external resistor divider. Its watchdog function uses SWT pin capacitance to set timeout (1.6s default), with WDPO providing advance pulse before WDO assertion.
It integrates a bidirectional chip-enable transmission gate (10ns max propagation delay) that disables during reset to prevent memory corruption, and includes an overvoltage comparator (OVI/OVO) independent of core supervision logic. Manual reset (MR) accepts TTL/CMOS levels and triggers reset within 12µs with 25µs minimum pulse width.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold Voltage | 3.00V to 3.15V (T-suffix, internal mode); enables reliable µP reset initiation at precise supply drop point |
| Reset Timeout Period | 140ms to 280ms; ensures stable processor initialization after power-up or brownout recovery |
| Watchdog Timeout (SWT = VCC) | 1.6s nominal; provides software fault detection window before hardware shutdown |
| Chip-Enable Propagation Delay | 10ns max; allows safe gating of high-speed memory access without timing violation |
| Supply Current | 70µA typical at +25°C; supports low-power embedded operation without burdening supply |
| Operating Temperature Range | 0°C to +70°C; qualified for commercial-grade industrial control and instrumentation |
| Package | 16-pin plastic DIP (0.300" wide); through-hole mount compatible with legacy PCB assembly |
Pinout & Package
MAX792TCPE is housed in a 16-pin plastic DIP (dual in-line package), 0.300" body width, through-hole mounting, RoHS-compliant lead-free option available (+ suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2 | RESET / RESET | Complementary active-low and active-high reset outputs; RESET valid down to VCC = 1V for fail-safe boot |
| 3 | VCC | Main supply input (2.75V–5.5V); powers all internal comparators, timers, and output drivers |
| 4 | RESET IN/INT | Mode select: ≤60mV → internal threshold mode; ≥600mV → external programming mode |
| 5 | LLIN/REFOUT | In external mode: low-line comparator input; in internal mode: buffered 1.30V reference output |
| 9 | MR | Manual reset input; internally pulled up, triggered at ~1.30V, 12µs propagation to RESET |
| 10 | LOW LINE | Active-low NMI output asserted 120mV above reset threshold; enables early brownout warning |
| 11 | WDI | Watchdog input; edge-sensitive; timeout resets on any transition (min 100ns pulse at VCC = 5V) |
| 12 | GND | Ground reference for all analog comparators and digital outputs |
| 13 | CE OUT | Chip-enable output; gated pass-through of CE IN during normal operation; disabled during reset |
| 14 | CE IN | Chip-enable input; high-impedance when reset asserted to isolate memory bus |
| 15 | WDO | Watchdog fault output; latched low until next WDI transition; used for system-level fault response |
| 16 | WDPO | Watchdog pulse output; 0.5–6.0ms low pulse preceding WDO by 70ns; enables two-fault shutdown logic |
| 6, 7, 8 | OVO / OVI / SWT | OVO: overvoltage comparator output; OVI: inverting input (1.30V threshold); SWT: watchdog timeout capacitor node |
Key Features
| Feature | Design Value |
|---|---|
| Two-stage power-fail warning | LOW LINE asserts 120mV above reset threshold, enabling NMI-triggered graceful shutdown before reset |
| Pulsed watchdog output (WDPO) | Provides 0.5–6.0ms advance warning pulse before WDO assertion, supporting two-fault latching schemes |
| On-board chip-enable gating | 10ns max CE IN→CE OUT delay with automatic disable during reset, preventing RAM write corruption |
| Memory write-cycle completion support | CE OUT remains low for 15µs after reset assertion if CE IN was low, ensuring ongoing write completes |
| VCC-operated reset validity | RESET output guaranteed functional down to VCC = 1V, critical for ultra-low-voltage brownout recovery |
Applications
| Industrial PLC Controllers | Medical Diagnostic Instruments |
|---|---|
Use Scenario: Programmable logic controller operating in factory environments with fluctuating 24VDC-derived 5V supplies. IC Role / Device Role / Timing Role: Supervises VCC rail, asserts LOW LINE for NMI-based diagnostics upon early voltage sag, then RESET for full reboot if sag persists. Use Value: Prevents spurious I/O state changes and firmware lockup by decoupling brownout warning (LOW LINE) from hard reset (RESET), enabling deterministic recovery. |
Use Scenario: Portable ultrasound device requiring fail-safe boot and memory integrity during battery voltage decay. IC Role / Device Role / Timing Role: Monitors 3.3V logic rail; gates CE signals to SRAM during brownout; uses WDPO/WDO to trigger controlled power-down sequence. Use Value: Guarantees CMOS RAM data retention during power collapse by disabling CE before reset, and enables dual-watchdog fault shutdown to prevent unsafe operation. |
| Telecom Line Cards | Automotive Body Control Modules |
Use Scenario: Carrier-grade line card with hot-swap capability and redundant power inputs. IC Role / Device Role / Timing Role: Provides synchronized reset across multiple ASICs using RESET/RESET outputs; uses MR for field-service-initiated reboot. Use Value: Eliminates race conditions during power sequencing via 200ms reset timeout and simultaneous multi-device assertion. |
Use Scenario: 12V automotive subsystem with LDO-regulated 5V domain powering microcontroller and EEPROM. IC Role / Device Role / Timing Role: Detects undervoltage on 5V rail; asserts RESET to halt MCU execution; uses external resistor divider on RESET IN/INT for custom threshold tuning. Use Value: Enables precise reset point alignment with automotive OEM specifications (e.g., 4.37V or 4.62V variants), avoiding premature or delayed reset. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX820TCPE | Identical pinout and function; ±2% reset/low-line threshold accuracy vs. ±2.5% for MAX792TCPE | Required where tighter voltage monitoring tolerance is mandated (e.g., medical or telecom compliance) | Select MAX820TCPE when design requires guaranteed ±2% threshold accuracy across temperature; otherwise MAX792TCPE suffices for general industrial use. |
| TPS3823-33DBVT | 3.3V fixed reset threshold; no low-line output, no WDPO, no CE gating; SOT-23-5 package | Limited to basic reset-only applications without advanced supervision features | Choose only if system needs minimal reset IC with tiny footprint and no need for NMI warning, watchdog, or memory gating. |
Compared with MAX820TCPE, the MAX792TCPE offers identical functionality at lower cost but with relaxed threshold accuracy; compared with TPS3823-33DBVT, it delivers comprehensive supervision (dual warning, watchdog, CE control) in a larger DIP package suitable for prototyping and legacy designs.
Availability
MAX792TCPE is available at Aetrix Electronics and suitable for industrial PLC controllers, medical diagnostic instruments, telecom line cards, and automotive body control modules requiring stable component supply across extended production lifecycles.
Supply support for MAX792TCPE 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
Maxim Integrated (now part of Analog Devices) designs precision analog and mixed-signal ICs for industrial, communications, and computing applications, with emphasis on reliability and integration.
The MAX792/MAX820 product line targets microprocessor-based systems needing coordinated power monitoring, reset control, memory protection, and fault detection - specifically engineered for robustness in noisy, thermally variable environments.
FAQ
What is the exact reset threshold voltage for MAX792TCPE?
The MAX792TCPE has a nominal reset threshold voltage of 3.06V in internal threshold mode, with a guaranteed range of 3.00V to 3.15V at +25°C. This value is factory-trimmed and applies specifically to the 'T' suffix variant; the 'C' in MAX792TCPE denotes commercial temperature grade (0°C to +70°C), and 'PE' indicates 16-pin plastic DIP packaging.
Does MAX792TCPE support external reset threshold programming?
Yes, MAX792TCPE supports external reset threshold programming via the RESET IN/INT and LLIN/REFOUT pins. Pulling RESET IN/INT above 600mV disconnects internal dividers and enables external resistor networks to set custom reset and low-line thresholds - a capability confirmed in the MAX792/MAX820 datasheet Figure 4b and Electrical Characteristics table.
What is the watchdog timeout period for MAX792TCPE when no capacitor is connected to SWT?
When SWT is connected directly to VCC, MAX792TCPE uses its internal 1.6s nominal watchdog timeout period. This value is process- and temperature-stable per the Typical Operating Characteristics plot (Figure MAX792-5), and is independent of the T-suffix reset threshold - the timeout is governed by internal oscillator calibration, not reset voltage setting.
How does the chip-enable gating function work on MAX792TCPE?
MAX792TCPE's CE IN-to-CE OUT transmission gate passes signals during normal operation with ≤10ns propagation delay. When reset is asserted, the gate disables: CE IN goes high-impedance, and CE OUT is pulled up. If CE IN is low at reset assertion, CE OUT stays low for 15µs to complete the current memory write cycle - a behavior explicitly documented in the "Chip-Enable Signal Gating" section.
Can MAX792TCPE operate with VCC below 3V?
Yes, MAX792TCPE operates with VCC as low as 2.75V per Absolute Maximum Ratings, and its RESET output remains guaranteed functional down to VCC = 1V. However, the 3.06V reset threshold means reset assertion occurs well before VCC reaches 1V; operation below 2.75V risks undefined behavior and is outside specified limits.
MAX792TCPE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 16-DIP (0.300", 7.62mm)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Power Supply Monitor
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 3.06V
- Output:
- Open Drain or Open Collector
- Reset:
- Active High/Active Low
- Reset Timeout:
- 140ms Minimum
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 16-PDIP
MAX792TCPE FAQ
1.How can I place an order for MAX792TCPE through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX792TCPE 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 MAX792TCPE reliable?
The price and inventory of MAX792TCPE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX792TCPE is usually 5 days.
3.What payment methods are accepted for MAX792TCPE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX792TCPE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX792TCPE?
MAX792TCPE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX792TCPE 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 MAX792TCPE?
For technical support, including MAX792TCPE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX792TCPE requirements.
6.How does Aetrix verify that MAX792TCPE is sourced from the original manufacturer or authorized distributors?
All MAX792TCPE 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 MAX792TCPE meets industry standards.
7.What is the process for return or replacement of MAX792TCPE?
All MAX792TCPE units undergo pre-shipment inspection (PSI). If there is an issue with MAX792TCPE, 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 MAX792TCPE part is unused and in its original packaging.
Return procedure for MAX792TCPE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX792TCPE Tags
-
MIC826SYMT-TR
Microchip Technology
-
APX803S-31SA-7
Diodes Incorporated
-
APX803L20-29SA-7
Diodes Incorporated
-
TPS3828-33DBVR
Texas Instruments
-
V6340RSP3B+
EM Microelectronic
-
EM6325CXSP5B-2.9+
EM Microelectronic
-
MCP120T-300I/TT
Microchip Technology
-
MCP130T-315I/TT
Microchip Technology
-
MCP120T-475I/TT
Microchip Technology
-
MCP111T-300E/TT
Microchip Technology
-
MCP120T-315I/TT
Microchip Technology
-
MCP809T-315I/TT
Microchip Technology
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…
