X4645V8

DATASHEET X4643, X4645 FN8123 Rev 0.00 March 29, 2005 64K, 8K x 8 Bit CPU Supervisor with 64K EEPROM FEATURES DESCRIPTION • Selectable watchdog timer • Low VCC detection and reset assertion —Four standard reset threshold voltages —Adjust low VCC reset threshold voltage using special programming sequence —Reset signal valid to VCC = 1V • Low power CMOS —tWDO tRST tRST SCL SDA RESET Note: All inputs are ignored during the active reset period (tRST). FN8123 Rev 0.00 March 29, 2005 Page 17 of 21 X4643, X4645 RESET Output Timing Symbol tWDO tRST Parameter Min. Typ. Max. Unit Watchdog Time Out Period, WD1 = 1, WD0 = 1 (factory setting) WD1 = 1, WD0 = 0 WD1 = 0, WD0 = 1 WD1 = 0, WD0 = 0 100 450 1 OFF 250 650 1.5 300 850 2 ms ms sec Reset Time Out 100 250 400 ms VTRIP Programming Timing Diagram (WEL = 1) VCC (VTRIP) VTRIP tTSU tTHD VP WP tVPH tVPS SCL tVPO tRP SDA A0h 01h or 03h 00h 00h VTRIP Programming Parameters Parameter Description Min. Max. Unit tVPS VTRIP Program Enable Voltage Setup time 1 µs tVPH VTRIP Program Enable Voltage Hold time 1 µs tTSU VTRIP Setup time 1 µs tTHD VTRIP Hold (stable) time 10 ms tWC VTRIP Write Cycle Time tVPO VTRIP Program Enable Voltage Off time (Between successive adjustments) 0 µs tRP VTRIP Program Recovery Period (Between successive adjustments) 10 ms VP Programming Voltage 15 18 V VTRIP Programmed Voltage Range 2.55 4.75 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 VTRAN 10 ms VTRIP programming parameters are periodically sampled and are not 100% tested. FN8123 Rev 0.00 March 29, 2005 Page 18 of 21 X4643, X4645 PACKAGING INFORMATION 8-Lead Plastic Small Outline Gull Wing 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) 0.019 (0.49) 0.188 (4.78) 0.197 (5.00) (4X) 7° 0.053 (1.35) 0.069 (1.75) 0.004 (0.19) 0.010 (0.25) 0.050 (1.27) 0.010 (0.25) X 45° 0.020 (0.50) 0.050"Typical 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 8 Places NOTE: ALL DIMENSIONS IN INCHES (IN PARENTHESES IN MILLIMETERS) FN8123 Rev 0.00 March 29, 2005 Page 19 of 21 X4643, X4645 PACKAGING INFORMATION 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) .0118 (.30) .002 (.05) .006 (.15) .010 (.25) Gage Plane 0° - 8° .019 (.50) .029 (.75) Seating Plane (4.16) (7.72) Detail A (20X) (1.78) .031 (.80) .041 (1.05) See Detail “A” (0.42) (0.65) All Measurements Are Typical NOTE: ALL DIMENSIONS IN INCHES (IN PARENTHESES IN MILLIMETERS) FN8123 Rev 0.00 March 29, 2005 Page 20 of 21 X4643, X4645 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 8L SOIC 0°C-70°C X4643S8-4.5A X4645S8-4.5A -40°C-85°C X4643S8I-4.5A X4645S8I-4.5A 0°C-70°C X4643V8-4.5A X4645V8-4.5A -40°C-85°C X4643V8I-4.5A X4645V8I-4.5A 0°C-70°C X4643S8 X4645S8 -40°C-85°C X4643S8I X4645S8I 8L TSSOP 4.5-5.5V 4.25-4.5 8L SOIC 8L TSSOP 2.7-5.5V 2.85-3.0 8L SOIC 8LTSSOP 2.7-5.5V 2.55-2.7 8L SOIC 8L TSSOP 0°C-70°C X4643V8 X4645V8 -40°C-85°C X4643V8I X4645V8I 0°C-70°C X4643S8-2.7A X4645S8-2.7A -40°C-85°C X4643S8I-2.7A X4645S8I-2.7A 0°C-70°C X4643V8-2.7A X4645V8-2.7A -40°C-85°C X4643V8I-2.7A X4645V8I-2.7A 0°C–70°C X4643S8-2.7 X4645S8-2.7 -40°C-85°C X4643S8I-2.7 X4645S8I-2.7 0°C-70°C X4643V8-2.7 X4645V8-2.7 -40°C-85°C X4643V8I-2.7 X4645V8I-2.7 Part Mark Information 8-Lead SOIC/PDIP 8-Lead TSSOP EYWW XXXXX X4643/5 X XX ADB/ADK = -4.5A (0 to +70°C) ADD/ADM = No Suffix (0 to +70°C) ADF/ADO = -2.7A (0 to +70°C) ADH/ADQ= -2.7 (0 to +70°C) 4283/4285 Blank = 8-Lead SOIC AL = -4.5A (0 to +70°C) AM = -4.5A (-40 to +85°C) Blank = No Suffix (0 to +70°C) I = No Suffix (-40 to +85°C) AN = -2.7A (0 to +70°C) AP = -2.7A (-40 to +85°C) F = -2.7 (0 to +70°C) G = -2.7 (-40 to +85°C) © 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 FN8123 Rev 0.00 March 29, 2005 Page 21 of 21