DatasheetsPDF.com

CAT1163 Dataheets PDF



Part Number CAT1163
Manufacturers ON Semiconductor
Logo ON Semiconductor
Description Precision Reset Controller and Watchdog Timer
Datasheet CAT1163 DatasheetCAT1163 Datasheet (PDF)

CAT1163 Supervisory Circuits with I2C Serial CMOS EEPROM, Precision Reset Controller and Watchdog Timer (16K) Description The CAT1163 is a complete memory and supervisory solution for microcontroller−based systems. A serial EEPROM memory (16K) with hardware memory write protection, a system power supervisor with brown out protection and a watchdog timer are integrated together in low power CMOS technology. Memory interface is via an I2C bus. The 1.6−second watchdog circuit returns a system to .

  CAT1163   CAT1163



Document
CAT1163 Supervisory Circuits with I2C Serial CMOS EEPROM, Precision Reset Controller and Watchdog Timer (16K) Description The CAT1163 is a complete memory and supervisory solution for microcontroller−based systems. A serial EEPROM memory (16K) with hardware memory write protection, a system power supervisor with brown out protection and a watchdog timer are integrated together in low power CMOS technology. Memory interface is via an I2C bus. The 1.6−second watchdog circuit returns a system to a known good state if a software or hardware glitch halts or “hangs” the system. The CAT1163 watchdog monitors the WDI input pin. The power supply monitor and reset circuit protects memory and system controllers during power up/down and against brownout conditions. Five reset threshold voltages support 5 V, 3.3 V and 3 V systems. If power supply voltages are out of tolerance reset signals become active, preventing the system microcontroller, ASIC or peripherals from operating. Reset signals become inactive typically 200 ms after the supply voltage exceeds the reset threshold level. With both active high and low reset signals, interface to microcontrollers and other ICs is simple. In addition, a reset pin can be used as a debounced input for pushbutton manual reset capability. The CAT1163 memory features a 16−byte page. In addition, hardware data protection is provided by a write protect pin WP and by a VCC sense circuit that prevents writes to memory whenever VCC falls below the reset threshold or until VCC reaches the reset threshold during power up. Available packages include an 8−pin DIP and a surface mount, 8−pin SO package. http://onsemi.com PDIP−8 CASE 646AA SOIC−8 CASE 751BD PIN CONFIGURATION PDIP 8 Lead SOIC 8 Lead WDI RESET WP GND 1 8 2 7 CAT1163 3 6 4 5 VCC RESET SCL SDA Pin Name WDI RESET WP GND SDA PIN FUNCTIONS Function Watchdog Timer Input Active Low Reset I/O Write Protect Ground Serial Data/Address Features • Watchdog Timer Input (WDI) • 400 kHz I2C Bus Compatible • 2.7 V to 6.0 V Operation • Low Power CMOS Technology • 16−Byte Page Write Buffer • Built−in Inadvertent Write Protection ♦ VCC Lock Out ♦ Write Protection Pin, WP • Active High or Low Reset ♦ Precision Power Supply Voltage Monitor ♦ 5 V, 3.3 V and 3 V Systems ♦ Five Threshold Voltage Options • 1,000,000 Program/Erase Cycles • Manual Reset SCL RESET VCC Clock Input Active High Reset I/O Power Supply ORDERING INFORMATION For Ordering Information details, see page 10. • 100 Year Data Retention • 8−Pin DIP or 8−Pin SOIC • Commercial and Industrial Temperature Ranges • These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS Compliant © Semiconductor Components Industries, LLC, 2011 1 November, 2011 − Rev. 10 Publication Order Number: CAT1163/D CAT1163 Table 1. RESET THRESHOLD OPTION Part Dash Number Minimum Threshold Maximum Threshold −45 4.50 4.75 −42 4.25 4.50 −30 3.00 3.15 −28 2.85 3.00 −25 2.55 2.70 EXTERNAL LOAD V CC GND BLOCK DIAGRAM D OUT ACK WORD ADDRESS BUFFERS SENSEAMPS SHIFT REGISTERS COLUMN DECODERS SDA WP STA RT/ STOP LOGIC CONTROL LOGIC XDEC 16K EEPROM DATA IN STORAGE HIGH VOLTAGE/ TIMING CONTROL RESET Controller STATE COUNTERS SCL Precision WAT CH DO G Vcc Monitor SLAVE ADDRESS COMPARATORS WDI RESET RESET http://onsemi.com 2 CAT1163 SPECIFICATIONS Table 2. ABSOLUTE MAXIMUM RATINGS Parameters Ratings Units Temperature Under Bias –55 to +125 °C Storage Temperature –65 to +150 °C Voltage on any Pin with Respect to Ground (Note 1) VCC with Respect to Ground Package Power Dissipation Capability (TA = 25°C) Lead Soldering Temperature (10 seconds) −2.0 to VCC + 2.0 V −2.0 to 7.0 V 1.0 W 300 °C Output Short Circuit Current (Note 2) 100 mA Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability. 1. The minimum DC input voltage is –0.5 V. During transitions, inputs may undershoot to –2.0 V for periods of less than 20 ns. Maximum DC voltage on output pins is VCC +0.5 V, which may overshoot to VCC +2.0 V for periods of less than 20 ns. 2. Output shorted for no more than one second. No more than one output shorted at a time. Table 3. RELIABILITY CHARACTERISTICS Symbol Parameter Reference Test Method Min Max NEND (Note 3) Endurance MIL−STD−883, Test Method 1033 1,000,000 TDR (Note 3) Data Retention MIL−STD−883, Test Method 1008 100 VZAP (Note 3) ESD Susceptibility MIL−STD−883, Test Method 3015 2000 ILTH (Notes 3 & 4) Latch−Up JEDEC Standard 17 100 3. This parameter is tested initially and after a design or process change that affects the parameter. 4. Latch−up protection is provided for s.


NCP4632 CAT1163 CAT5133


@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site.
(Privacy Policy & Contact)