X5001 XICOR [Xicor Inc.], X5001 Datasheet
X5001
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X5001 Summary of contents
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... CS/WDI LOGIC V CC Xicor, Inc. 1994, 1995, 1996, 1998 Patents Pending 7078 1.1 8/9/99 CM X5001 CPU Supervisor DESCRIPTION This device combines three popular functions, Power on Reset, Watchdog Timer, and Supply Voltage Supervision in one package. This combination lowers system cost, reduces board space requirements, and increases reli- ability ...
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... X5001 PIN DESCRIPTION PIN PIN (SOIC/PDIP) TSSOP Name 1 1 CS/WDI SCK RESET 3-5,10-12 NC Figure 1. PIN CONFIGURATION 8 Lead TSSOP RESET CS/WDI Chip Select Input. CS HIGH, deselects the device and the SO output pin high impedance state ...
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... X5001 PRINCIPLES OF OPERATION Power On Reset Application of power to the X5001 activates a Power On Reset Circuit. This circuit goes active at 1V and pulls the RESET/RESET pin active. This signal prevents the sys- tem microprocessor from starting to operate with insuffi- cient voltage or prior to stabilization of the oscillator. When ...
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... SCK SI 03h Figure 4. Reset V Level Sequence (Vcc > 3V. ) TRIP SCK SI 03h X5001 value. ) TRIP V = 15-18V BITS 0001h V = 15-18V ...
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... X5001 Figure 5. Vtrip Programming Sequence New Vcc applied = + Old Vcc applied Vtrip Programming Execute Reset Vtrip Sequence Set Vcc = Vcc applied = Desired Vtrip Execute Set Vtrip Error Sequence Apply 5V to Vcc Decrement Vcc (Vcc = Vcc - 50mV) NO RESET pin goes active? YES Error < ...
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... Read Watchdog Timer instruction should be used to determine the current status of the Watchdog control bits. RESET Operation The RESET (X5001) output is designed to go LOW whenever V and/or the Watchdog timer has reached its programmable time-out limit ...
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... X5001 Table 1. Instruction Set Definition Instruction Format 0000 0110 EWDC: Enable Watchdog Change Operation 0000 0100 DWDC: Disable Watchdog Change Operation 0000 0001 SWDT: Set Watchdog Timer control bits: Instruction followed by contents of register: 000(WD See Watchdog Timer Settings and Figure 3. 0000 0101 RWDT: Read Watchdog Timer control bits Notes: Instructions are shown with MSB in leftmost position. Instructions are transferred MSB fi ...
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... X5001 Figure 3. Write Watchdog Timer Sequence CS 0 SCK SI HIGH IMPEDANCE SO Figure 4. Read Nonvolatile Status (Option 1) (Used to determine end of Watchdog Timer store operation SCK SI SO Figure 5. Read Nonvolatile Status (Option 2) (Used to determine end of Watchdog Timer store operation SCK ...
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... X5001 ABSOLUTE MAXIMUM RATINGS* Temperature under Bias ........................–65°C to +135°C Storage Temperature .............................–65°C to +150°C Voltage on any Pin with Respect to V D.C. Output Current ....................................................5mA Lead Temperature (Soldering, 10 seconds)............ 300°C RECOMMENDED OPERATING CONDITIONS Temp Min. Commercial 0°C D.C. OPERATING CHARACTERISTICS (Over the recommended operating conditions unless otherwise specified.) ...
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... X5001 Figure 1. EQUIVALENT A.C. LOAD CIRCUIT 3V 1.64K OUTPUT 1.64K 100pF A.C. CHARACTERISTICS (Over recommended operating conditions, unless otherwise specified) Data Input Timing Symbol Parameter f Clock Frequency SCK t Cycle Time CYC t CS Lead Time LEAD t CS Lag Time LAG t Clock HIGH Time WH t Clock LOW Time ...
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... X5001 Figure 1. Data Output Timing CS SCK MSB OUT ADDR SI LSB IN Figure 2. Data Input Timing CS t LEAD SCK MSB IN HIGH IMPEDANCE CYC MSB–1 OUT LAG DIS LSB OUT LAG t FI LSB IN Figure 1. Symbol Table ...
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... Volts RESET (X5001) RESET Output Timing Symbol Reset Trip Point Voltage, X5001PT-4.5A Reset Trip Point Voltage, X5001PT-4.5 V Reset Trip Point Voltage, X5001PT-2.7A TRIP Reset Trip Point Voltage, X5001PT-2.7 Reset Trip Point Voltage, X5001PT-1.8 t Power-up Reset Timeout PURST (5) V Detect to Reset/Output t CC ...
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... X5001 V Programming Timing Diagram TRIP Vcc ( V ) TRIP VPS CS SCK SI 03h V TRIP t TSU t VPH t PCS 0001h or 0001h 02h 0003h 13 t THD t VPO t RP ...
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... X5001 V Programming Parameters TRIP Parameter t V Program Enable Voltage Setup time VPS TRIP t V Program Enable Voltage Hold time VPH TRIP t V Programming CS inactive time PCS TRIP t V Setup time TSU TRIP t V Hold (stable) time THD TRIP t V Write Cycle Time ...
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... X5001 Vcc Supply Current vs. Temperature (I Watchdog Timer On (Vcc = 5V Watchdog Timer On (Vcc = 3V) 11 Watchdog Timer Off (Vcc = 3V, 5V) 0.55 0.35 –40C 25C Temp (c) V vs. Temperature (programmed at 25°C) TRIP 5.025 5.000 4.975 3.525 3.500 3.475 2.525 2.500 2.475 0 25 Temperature t vs. Temperature ...
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... X5001 8-LEAD PLASTIC SMALL OUTLINE GULL WING PACKAGE TYPE S PIN 1 INDEX 0.010 (0.25) 0.020 (0.50) 0 – 8 0.016 (0.410) 0.037 (0.937) NOTE: ALL DIMENSIONS IN INCHES (IN P ARENTHESES IN MILLIMETERS) PIN 1 0.014 (0.35) 0.019 (0.49) 0.188 (4.78) 0.197 (5.00) (4X) 7 0.004 (0.19) 0.050 (1.27) 0.010 (0.25 0.0075 (0.19) 0.250" 0.010 (0.25) FOOTPRINT 16 0.150 (3.80) 0.228 (5.80) ...
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... X5001 0 – 8 See Detail “A” NOTE: ALL DIMENSIONS IN INCHES (IN P ARENTHESES IN MILLIMETERS) 8-LEAD PLASTIC, TSSOP , PACKAGE TYPE V .025 (.65) BSC .169 (4.3) .252 (6.4) BSC .177 (4.5) .114 (2.9) .122 (3.1) .047 (1.20) .0075 (.19) .002 (.05) .006 (.15) .0118 (.30) .019 (.50) .029 (.75) Detail A (20X) 17 .010 (.25) Gage Plane Seating Plane .031 (.80) ...
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... pin PDIP SOIC TSSOP SOIC SOIC TSSOP PART NUMBER RESET (Active LOW) X5001P-4.5A X5001S8-4.5A X5001V8-4.5A X5001P X5001S8 X5001V8 X5001S8-2.7A X5001S8-2.7 X5001V8-2.7 ...
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... A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system affect its safety or effectiveness. 8-Lead SOIC X5001 YWW XX =1.7-1. 1.8 to 3.6V +70°C, V TRIP =1 ...