X5645P

DATASHEET X5643, X5645 (Replaces X25643, X25645) FN8135 Rev 1.00 July 18, 2005 CPU Supervisor with 64Kbit SPI EEPROM FEATURES DESCRIPTION • Selectable watchdog timer • Low VCC detection and reset assertion —Five standard reset threshold voltages —Re-program low VCC reset threshold voltage using special programming sequence —Reset signal valid to VCC = 1V • Determine watchdog or low voltage reset with a volatile flag bit • Long battery life with low power consumption — 3.3V, IOL = 2.1mA 2V < VCC  3.3V, IOL = 1mA 2V < VCC  3.3V, IOH = -0.4mA V VCC  2V, IOH = -0.25mA V IOL = 1mA Page 10 of 19 X5643, X5645 (Replaces X25643, X25645) CAPACITANCE TA = +25°C, f = 1MHz, VCC = 5V Symbol COUT CIN (2) (2) Test Max. Unit Conditions Output Capacitance (SO, RESET/RESET) 8 pF VOUT = 0V Input Capacitance (SCK, SI, CS, WP) 6 pF VIN = 0V Notes: (1) VIL min. and VIH max. are for reference only and are not tested. (2) This parameter is periodically sampled and not 100% tested. EQUIVALENT A.C. LOAD CIRCUIT AT 5V VCC 5V 5V 4.6k 2.06k Output A.C. TEST CONDITIONS Input pulse levels VCC x 0.1 to VCC x 0.9 Input rise and fall times 10ns Input and output timing level VCC x0.5 RESET/RESET 3.03k 100pF 30pF A.C. CHARACTERISTICS (Over recommended operating conditions, unless otherwise specified) Serial Input Timing 2.7-5.5V Symbol Parameter Min. Max. Unit 0 2 MHz fSCK Clock frequency tCYC Cycle time 500 ns tLEAD CS lead time 250 ns tLAG CS lag time 250 ns tWH Clock HIGH time 200 ns tWL Clock LOW time 250 ns tSU Data setup time 50 ns tH Data hold time 50 ns tRI(3) tFI(3) Input rise time 100 ns Input fall time 100 ns tCS tWC (4) CS deselect time Write cycle time FN8135 Rev 1.00 July 18, 2005 500 ns 10 ms Page 11 of 19 X5643, X5645 (Replaces X25643, X25645) Serial Input Timing tCS CS tLEAD tLAG SCK tSU tH SI tRI tFI MSB IN LSB IN High Impedance SO Serial Output Timing 2.7-5.5V Symbol Parameter Min. Max. Unit 0 2 MHz fSCK Clock frequency tDIS Output disable time 250 ns Output valid from clock low 250 ns tV tHO Output hold time tRO(3) tFO(3) Output rise time 100 ns Output fall time 100 ns 0 ns Notes: (3) This parameter is periodically sampled and not 100% tested. (4) tWC is the time from the rising edge of CS after a valid write sequence has been sent to the end of the self-timed internal nonvolatile write cycle. Serial Output Timing CS tCYC tWH tLAG SCK tV SO SI MSB Out tHO MSB–1 Out tWL tDIS LSB Out ADDR LSB IN FN8135 Rev 1.00 July 18, 2005 Page 12 of 19 X5643, X5645 (Replaces X25643, X25645) Power-Up and Power-Down Timing VCC VTRIP VTRIP tPURST 0 Volts tPURST tF tRPD tR RESET (X5643) RESET (X5645) RESET Output Timing Symbol VTRIP VTH tPURST tRPD tF (5) Reset trip point voltage, X5643-4.5A, X5643-4.5A Reset trip point voltage, X5643, X5645 Reset trip point voltage, X5643-2.7A, X5645-2.7A Reset trip point voltage, X5643-2.7, X5645-2.7 Min. Typ. Max. Unit 4.5 4.25 2.85 2.55 4.63 4.38 2.93 2.63 4.75 4.5 3.0 2.7 V VTRIP hysteresis (HIGH to LOW vs. LOW to HIGH VTRIP voltage) Power-up reset time out 20 100 VCC detect to reset/output 200 mV 280 ms 500 ns (5) VCC fall time 100 µs (5) VCC rise time 100 µs 1 V tR VRVALID Note: Parameter Reset valid VCC (5) This parameter is periodically sampled and not 100% tested. CS/WDI vs. RESET/RESET Timing CS/WDI tCST RESET tWDO tRST tWDO tRST RESET FN8135 Rev 1.00 July 18, 2005 Page 13 of 19 X5643, X5645 (Replaces X25643, X25645) RESET/RESET Output Timing Symbol Parameter Min. Typ. Max. Unit 100 450 1 200 600 1.4 300 800 2 ms ms sec 200 300 ms tWDO Watchdog time out period, WD1 = 1, WD0 = 0 WD1 = 0, WD0 = 1 WD1 = 0, WD0 = 0 tCST CS pulse width to reset the watchdog 400 tRST Reset time out 100 ns VTRIP Set Conditions tTHD VCC VTRIP tTSU tVPS CS tRP tP tVPH tVPH tVPS tVPO VP SCK VP tVPO SI VTRIP Reset Conditions VCC* tRP tVPS CS SCK tVPS tP tVP1 tVPH tVPO VCC VP tVPO SI *VCC > Programmed VTRIP FN8135 Rev 1.00 July 18, 2005 Page 14 of 19 X5643, X5645 (Replaces X25643, X25645) VTRIP Programming Specifications VCC = 1.7-5.5V; Temperature = 0°C to 70°C Parameter Description Min. Max. Unit tVPS SCK VTRIP program voltage setup time 1 µs tVPH SCK VTRIP program voltage hold time 1 µs VTRIP program pulse width 1 µs tTSU VTRIP level setup time 10 µs tTHD VTRIP level hold (stable) time 10 ms tWC VTRIP write cycle time tRP VTRIP program cycle recovery period (between successive programming cycles) 10 ms tVPO SCK VTRIP program voltage off time before next cycle 0 ms Programming voltage 15 18 V VTRIP programed voltage range 1.7 5.0 V Vta1 Initial VTRIP program voltage accuracy (VCC applied-VTRIP) (programmed at 25°C) -0.1 +0.4 V Vta2 Subsequent VTRIP Program Voltage accuracy [(VCC applied-Vta1)-VTRIP] (programmed at 25°C) -25 +25 mV Vtr VTRIP Program Voltage repeatability (successive program operations) (programmed at 25°C) -25 +25 mV Vtv VTRIP program variation after programming (0-75°C). (programmed at 25°C) -25 +25 mV tP VP VTRAN 10 ms VTRIP programming parameters are periodically sampled and are not 100% tested. FN8135 Rev 1.00 July 18, 2005 Page 15 of 19 X5643, X5645 (Replaces X25643, X25645) TYPICAL PERFORMANCE VCC Supply Current vs. Temperature (ISB) tWDO vs. Voltage/Temperature (WD1, 0 = 1, 1) 1.9 18 Watchdog Timer On (VCC = 5V) 16 1.8 1.7 12 Watchdog Timer On (VCC = 5V) 10 Isb (µA) Reset (seconds) 14 8 6 4 -40 25 Temp (°C) 1.3 1.2 1.7 90 VTRIP vs. Temperature (programmed at 25°C) 2.4 3.1 3.8 Voltage 4.5 5.2 tWDO vs. Voltage/Temperature (WD1, 0 = 1, 0) 0.8 5.025 VTRIP = 5V 5.000 0.75 Reset (seconds) 4.975 3.525 Voltage 90°C 1.4 1 0 VTRIP = 3.5V 3.500 3.475 2.525 -40°C 0.7 25°C 0.65 90°C 0.6 0.55 0.5 VTRIP = 2.5V 2.500 0.45 2.475 0 1.7 85 25 Temperature tPURST vs. Temperature 205 200 200 195 195 Reset (seconds) 205 185 180 175 170 165 160 -40 FN8135 Rev 1.00 July 18, 2005 2.4 3.1 3.8 Voltage 4.5 5.2 tWDO vs. Voltage/Temperature (WD1, 0 0 = 0, 1) 190 Time (ms) 25°C 1.5 1.1 Watchdog Timer Off (VCC = 3V, 5V) 2 -40°C 1.6 -40°C 25°C 190 185 90°C 180 175 170 165 160 25 Degrees °C 90 1.7 2.4 3.1 3.8 4.5 5.2 Voltage Page 16 of 19 X5643, X5645 (Replaces X25643, X25645) PACKAGING INFORMATION 8-Lead Plastic Dual In-Line Package Type P 0.430 (10.92) 0.360 (9.14) 0.260 (6.60) 0.240 (6.10) Pin 1 Index Pin 1 0.300 (7.62) Ref. Half Shoulder Width On All End Pins Optional 0.145 (3.68) 0.128 (3.25) Seating Plane 0.025 (0.64) 0.015 (0.38) 0.065 (1.65) 0.045 (1.14) 0.150 (3.81) 0.125 (3.18) 0.110 (2.79) 0.090 (2.29) .073 (1.84) Max. Typ. 0.010 (0.25) 0.060 (1.52) 0.020 (0.51) 0.020 (0.51) 0.016 (0.41) 0.325 (8.25) 0.300 (7.62) 0° 15° NOTE: 1. ALL DIMENSIONS IN INCHES (IN PARENTHESES IN MILLIMETERS) 2. PACKAGE DIMENSIONS EXCLUDE MOLDING FLASH FN8135 Rev 1.00 July 18, 2005 Page 17 of 19 X5643, X5645 (Replaces X25643, X25645) PACKAGING INFORMATION 14-Lead Plastic Small Outline Gullwing Package Type S 0.150 (3.80) 0.228 (5.80) 0.158 (4.00) 0.244 (6.20) Pin 1 Index Pin 1 0.014 (0.35) 0.020 (0.51) 0.336 (8.55) 0.345 (8.75) (4X) 7° 0.053 (1.35) 0.069 (1.75) 0.004 (0.10) 0.010 (0.25) 0.050 (1.27) 0.050" Typical 0.010 (0.25) 0.020 (0.50) X 45° 0.050" Typical 0° - 8° 0.0075 (0.19) 0.010 (0.25) 0.250" 0.016 (0.410) 0.037 (0.937) FOOTPRINT 0.030" Typical 14 Places NOTE: ALL DIMENSIONS IN INCHES (IN PARENTHESES IN MILLIMETERS) FN8135 Rev 1.00 July 18, 2005 Page 18 of 19 X5643, X5645 (Replaces X25643, X25645) Ordering Information VCC Range VTRIP Range Package Operating Temperature Range Part Number RESET (Active LOW) Part Number RESET (Active HIGH) 4.5-5.5V 4.5.4.75 8 pin PDIP 0-70°C X5643P-4.5A X5645P-4.5A 14L SOIC 0-70°C X5643S14-4.5A X5645S14-4.5A -40-85°C X5643S14I-4.5A X5645S14I-4.5A 8 pin PDIP 0-70°C X5643P X5645P 14L SOIC 0-70°C X5643S14 X5645S14 -40-85°C X5643S14I X5645S14I 4.5-5.5V 4.25.4.5 2.7-5.5V 2.85-3.0 14L SOIC 0-70°C X5643S14-2.7A X5645S14-2.7A 2.7-5.5V 2.55-2.7 14L SOIC 0-70°C X5643S14-2.7 X5645S14-2.7 Part Mark Information X5643/45 W X P = 8-Lead PDIP S14 = 14 Lead SOIC Blank = 5V ±10%, 0°C to +70°C, VTRIP = 4.25-4.5 AL = 5V±10%, 0°C to +70°C, VTRIP = 4.5-4.75 I = 5V ±10%, -40°C to +85°C, VTRIP = 4.25-4.5 AM = 5V ±10%, -40°C to +85°C, VTRIP = 4.5-4.75 F = 2.7V to 5.5V, 0°C to +70°C, VTRIP = 2.55-2.7 AN = 2.7V to 5.5V, 0°C to +70°C, VTRIP = 2.85-3.0 G = 2.7V to 5.5V, -40°C to +85°C, VTRIP = 2.55-2.7 AP = 2.7V to 5.5V, -40°C to +85°C, VTRIP = 2.85-3.0 © Copyright Intersil Americas LLC 2005. 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No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries. For information regarding Intersil Corporation and its products, see www.intersil.com FN8135 Rev 1.00 July 18, 2005 Page 19 of 19