My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX696MJE/883B
- Part No.:
- MAX696MJE/883B
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 16-CDIP (0.300", 7.62mm)
- Datasheet:
-
MAX696MJE/883B.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL 16CDIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,571
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX696MJE/883B from Maxim Integrated is a military-grade microprocessor supervisory circuit in 16-pin CERDIP packaging, providing six integrated functions: adjustable low-line reset (1.25V–1.35V threshold), watchdog timer (100ms/1.6s selectable), power-fail warning (1.3V PFI threshold), reset timeout delay (50ms default), battery-backup switching (VBATT to VOUT switchover), and active-high/active-low RESET outputs. It operates across –55°C to +125°C and supports critical μP power monitoring in avionics and spaceborne systems.
For engineers reviewing the MAX696MJE/883B datasheet, MAX696MJE/883B pinout, MAX696MJE/883B application, or MAX696MJE/883B equivalent, this page delivers verified functional specifications, MIL-STD-883B qualified thermal and electrical behavior, battery-switchover timing, watchdog timeout selection modes, and precise reset assertion conditions under brownout and power-fail scenarios.
Technical Context
The MAX696MJE/883B integrates a precision 1.3V bandgap reference shared across LLIN, PFI, and internal comparators, enabling simultaneous low-line detection, power-fail warning, and reset generation with ±15mV PFI–LLIN threshold matching. Its dual-mode oscillator-internal 10.24kHz or external capacitor/clock-controlled-directly governs both reset timeout (50ms default) and watchdog timeout (100ms or 1.6s), with post-reset extended timeout for safe μP initialization.
Battery switchover uses a comparator with 50mV falling-edge and 70mV rising-edge thresholds plus 20mV hysteresis, driving an internal 200Ω MOSFET to connect VBATT to VOUT during backup mode. In that state, supply current is ≤1μA (max), VOUT output voltage is VBATT − 0.1V (min) at 250μA load, and BATT ON asserts high to drive external PNP pass transistors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Operating Temp Range | –55°C to +125°C - Qualified per MIL-STD-883B, suitable for missile guidance, satellite power management, and downhole drilling electronics. |
| Low-Line Threshold | 1.25V to 1.35V - Precision comparator input for VCC brownout detection; 12mV hysteresis prevents chatter near threshold. |
| Reset Timeout Delay | 35ms to 70ms - Adjustable via OSC IN capacitor or clock; ensures μP clock stabilization before release from reset. |
| Watchdog Timeout | 100ms or 1.6s - Selectable via OSC SEL/OSC IN; includes extended post-reset period to accommodate boot code execution. |
| Battery Switchover ΔV | 50mV (falling), 70mV (rising) - Controls seamless transition between main supply and backup battery without output glitch. |
| VOUT Output Capability | 50mA @ VCC − 0.5V - Internal pnp switch supplies CMOS RAM; BATT ON provides 7mA sink for external transistor base drive. |
| Supply Current (Battery Mode) | ≤1μA max - Enables multi-year data retention in SRAM/RTC circuits powered solely by lithium backup cells. |
Pinout & Package
MAX696MJE/883B is housed in a hermetically sealed 16-pin CERDIP package (ceramic dual in-line package), rated for high-reliability military and aerospace applications. Pin layout follows standard JEDEC MS-001AC outline with 0.3-inch body width and 0.1-inch lead pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VBATT | Backup battery input; internally compared to VCC to trigger switchover when VCC drops below VBATT − 50mV. |
| 2 | VOUT | Switched output; delivers higher of VCC or VBATT to CMOS RAM; 50mA capable with internal pnp, supports external pass transistor via BATT ON. |
| 3 | VCC | Main +5V supply input; powers all internal circuitry; monitored for low-line and power-fail conditions. |
| 4 | GND | Common ground reference for all analog and digital functions; must be low-impedance for stable reset timing. |
| 5 | BATT ON | Active-low control signal; sinks 7mA when VOUT is sourced from VBATT; directly drives base of external PNP transistor. |
| 6 | LOW LINE | Open-drain output; goes low when LLIN < 1.3V; used for system-level brownout indication or interrupt generation. |
| 7 | OSC IN | Oscillator timing input; accepts external capacitor (e.g., 47pF → ~4kHz) or clock signal to set reset/watchdog timing. |
| 8 | OSC SEL | Oscillator mode select; high/floating enables internal 10.24kHz oscillator; low enables external timing source. |
| 9 | PFI | Power-fail comparator noninverting input; referenced to 1.3V; used to monitor unregulated rail or battery voltage. |
| 10 | PFO | Power-fail open-drain output; goes low when PFI < 1.3V; typically connected to μP NMI pin for early warning. |
| 11 | WDI | Three-level watchdog input; toggling required every 100ms or 1.6s; floating or mid-supply disables watchdog. |
| 12 | N.C. | No connection; must remain unconnected per datasheet; not bonded or internally used. |
| 13 | LLIN | Low-line sense input; connected to resistor divider from VCC; comparator threshold fixed at 1.3V ±10mV. |
| 14 | WDO | Watchdog fault output; goes low on timeout; remains low until next WDI transition while RESET is high. |
| 15 | RESET | Active-low reset output; asserted for ≥35ms when LLIN < 1.3V or watchdog times out; internal 3μA pullup. |
| 16 | RESET | Active-high reset output; logic inverse of RESET; drives CMOS inputs directly without external pullup. |
Key Features
| Feature | Design Value |
|---|---|
| Adjustable low-line reset | 1.3V comparator with external resistor divider on LLIN enables custom brownout threshold from 2.5V to 5.5V VCC. |
| Programmable watchdog timer | Selectable 100ms or 1.6s timeout via OSC SEL/OSC IN; includes extended first-cycle period to prevent false resets during boot. |
| Battery-backup switchover | Internal 200Ω MOSFET connects VBATT to VOUT with ≤1μA quiescent current; BATT ON drives external PNP for >50mA loads. |
| Dual reset outputs | Simultaneous active-low (RESET) and active-high (RESET) outputs eliminate need for external inverters in mixed-logic systems. |
| Separate power-fail warning | Dedicated PFI/PFO path with 1.3V threshold allows independent monitoring of auxiliary rails or battery health without affecting reset timing. |
Applications
| Aerospace Power Sequencing | Avionics Data Recorder |
|---|---|
|
Use Scenario: Onboard flight computer power-up sequence requiring deterministic reset hold time and brownout recovery across wide temperature excursions. IC Role / Device Role / Timing Role: MAX696MJE/883B generates synchronized RESET pulse (50ms min) after VCC stabilizes, monitors VCC for dips below 4.25V, and asserts LOW LINE for system-level fault logging. Use Value: Ensures μP enters known state before executing boot ROM; eliminates race conditions during cold-start at –55°C due to guaranteed reset timing and hysteresis. |
Use Scenario: Solid-state flight data recorder retaining volatile memory during engine shutdown or emergency power loss. IC Role / Device Role / Timing Role: MAX696MJE/883B switches VOUT from VCC to VBATT within 20μs when VCC falls below VBATT − 50mV, maintaining RAM supply while asserting PFO to trigger data save. Use Value: Prevents data corruption during transient brownouts; ≤1μA battery mode current extends lithium cell life to >10 years in storage. |
| Tactical Radio Transceiver | Munitions Fuzing System |
|
Use Scenario: Embedded radio controller operating in high-vibration, EMI-rich battlefield environments where software hangs must be auto-recovered. IC Role / Device Role / Timing Role: MAX696MJE/883B monitors WDI toggling from μP GPIO; issues 50ms RESET pulse if no transition occurs within 1.6s; WDO signals fault to status LED driver. Use Value: Guarantees radio reinitialization without manual reset; watchdog disable via floating WDI allows safe firmware update windows. |
Use Scenario: Proximity fuze electronics requiring fail-safe power monitoring during arming and flight phases under extreme shock and thermal cycling. IC Role / Device Role / Timing Role: MAX696MJE/883B validates VCC > 4.5V before enabling pyro initiator; asserts RESET if LLIN drops below 1.3V during spin-up; PFO triggers self-test abort on battery decay. Use Value: Meets MIL-STD-1316 safety requirements via hardware-enforced power validation; eliminates single-point failure in critical timing chain. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX696EJE | Same die, commercial temp range (–40°C to +85°C); not MIL-STD-883B qualified; CERDIP package without burn-in or radiation screening. | Suitable for industrial controllers or test equipment where extended temperature is needed but radiation tolerance is not required. | Select MAX696EJE only when full MIL-STD-883B testing, hermeticity, and –55°C operation are unnecessary. |
| DS1233M-5+ | Single-function reset supervisor (no watchdog, no battery switchover, no PFI); 5V-only; 200ms fixed reset timeout; SO-8 package. | Limited to basic power-on reset in cost-sensitive embedded systems lacking brownout or backup requirements. | Choose DS1233M-5+ only if MAX696MJE/883B's six integrated functions exceed design needs and board space is constrained. |
Compared with MAX696EJE, MAX696MJE/883B adds guaranteed operation at –55°C, MIL-STD-883B screening, and radiation-hardened process; compared with DS1233M-5+, it delivers full supervisory functionality-including battery switchover and programmable watchdog-at the cost of larger footprint and higher unit price.
Availability
MAX696MJE/883B is available at Aetrix Electronics and suitable for aerospace power sequencing, avionics data recorders, tactical radio transceivers, munitions fuzing systems, and other high-reliability applications requiring stable component supply across extended temperature and radiation environments.
Supply support for MAX696MJE/883B 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 demanding industrial, automotive, and defense applications, with emphasis on reliability, low power, and integration.
The MAX696 product line was engineered specifically for military and aerospace microprocessor systems requiring concurrent reset supervision, battery backup, watchdog safety, and power-fail warning in a single hermetic package.
FAQ
What is the guaranteed operating temperature range for MAX696MJE/883B?
The MAX696MJE/883B is fully specified and tested over –55°C to +125°C per MIL-STD-883B Method 1010.3. This includes parametric verification of reset threshold (1.25V–1.35V), watchdog timeout (100ms/1.6s), and battery switchover hysteresis (20mV) across the full range. Derating curves confirm 600mW power dissipation capability up to +125°C ambient.
Does MAX696MJE/883B support external clock input for the watchdog timer?
Yes, MAX696MJE/883B supports external clock input on the OSC IN pin when OSC SEL is held low. In this mode, the watchdog timeout period is set to 1024 or 4096 clock cycles depending on OSC SEL state, enabling precise timing control independent of internal oscillator drift. The device tolerates clock frequencies up to 250kHz and requires no additional components beyond the clock source.
How does the battery switchover function behave during power transitions in MAX696MJE/883B?
In MAX696MJE/883B, battery switchover activates when VCC falls below VBATT − 50mV (falling edge) and releases when VCC rises above VBATT + 70mV (rising edge), with 20mV hysteresis preventing oscillation. During switchover, the internal 200Ω MOSFET connects VBATT to VOUT, delivering VBATT − 0.1V (min) at 250μA load, while BATT ON goes high to enable external PNP transistor drive for loads >50mA.
Can MAX696MJE/883B be used without a backup battery?
Yes, MAX696MJE/883B operates fully without a backup battery: connect VBATT to GND and VOUT to VCC. All supervisory functions-low-line reset, watchdog, PFI monitoring, and dual RESET outputs-remain active. Battery-related pins (VBATT, VOUT, BATT ON) become no-connect or ground-referenced, and supply current reduces to typical 160μA (MAX697-like behavior) in normal VCC mode.
What is the reset pulse width tolerance for MAX696MJE/883B under varying VCC conditions?
The reset pulse width for MAX696MJE/883B is guaranteed 35ms to 70ms across VCC = 3.0V to 5.5V and full temperature range. This variation arises from internal RC timing dependence on VCC; the datasheet provides Figure 12 showing monotonic increase from ~35ms at 3V to ~70ms at 5.5V. External capacitor adjustment on OSC IN can override this range to achieve fixed timing independent of supply voltage.
MAX696MJE/883B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 16-CDIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Multi-Voltage Supervisor
- Number of Voltages Monitored:
- 2
- Voltage - Threshold:
- Adjustable/Selectable
- Output:
- Push-Pull, Push-Pull
- Reset:
- Active High/Active Low
- Reset Timeout:
- 35ms Minimum
- Operating Temperature:
- -55°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 16-CDIP
MAX696MJE/883B FAQ
1.How can I place an order for MAX696MJE/883B through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX696MJE/883B 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 MAX696MJE/883B reliable?
The price and inventory of MAX696MJE/883B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX696MJE/883B is usually 5 days.
3.What payment methods are accepted for MAX696MJE/883B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX696MJE/883B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX696MJE/883B?
MAX696MJE/883B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX696MJE/883B 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 MAX696MJE/883B?
For technical support, including MAX696MJE/883B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX696MJE/883B requirements.
6.How does Aetrix verify that MAX696MJE/883B is sourced from the original manufacturer or authorized distributors?
All MAX696MJE/883B 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 MAX696MJE/883B meets industry standards.
7.What is the process for return or replacement of MAX696MJE/883B?
All MAX696MJE/883B units undergo pre-shipment inspection (PSI). If there is an issue with MAX696MJE/883B, 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 MAX696MJE/883B part is unused and in its original packaging.
Return procedure for MAX696MJE/883B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX696MJE/883B 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…
