HI-8420 October 2001 PIN CONFIGURATION DESCRIPTION The HI-8420 is a six channel discrete-to-digital interface device. Mixed-signal CMOS technology is used to provide superior low-power performance. The HI-8420 has six separate Open / Ground sensing inputs. The device outputs are CMOS / TTL compatible and may be disabled (tri-state) using the CE and OE pins. The device is a drop-in replacement for the DEI1026. For added functionality, the Holt HI-8422 offers eight channels of Open / Ground sensing and eight channels of 28V / Ground sensing in a single device. The HI-8420 is offered in a small footprint 16-pin plastic package. Please contact the Holt sales department for other packaging options. IN1 1 16 GND IN2 2 15 OUT1 IN3 3 14 OUT2 IN4 4 13 OUT3 IN5 5 12 OUT4 IN6 6 11 OUT5 OE 7 10 OUT6 CE 8 9 VDD HI-8420PS 16-Pin Plastic SOIC package (Narrow Body) BLOCK DIAGRAM FEATURES ! Six independent Open / Ground sensing channels ! 5.0V single supply operation ! Low power CMOS technology ! Military processing options available OE CE VDD IN1 ! 5K 9K + Drop in replacement for DEI1026 OUT1 IN2 5K 9K + OUT2 IN3 5K 9K + OUT3 - FUNCTION TABLE IN4 5K 9K + OUT4 - Discrete Input CE OE Output Open 0 0 0 Ground 0 0 1 X 1 X High Z X X 1 High Z 5K 9K + IN5 5K 9K + IN6 OUT6 9K (DS8420 Rev. New) OUT5 - GND HOLT INTEGRATED CIRCUITS www.holtic.com 5K 3.25V Reference 10/01 HI-8420 PIN DESCRIPTIONS PIN SYMBOL FUNCTION DESCRIPTION 1 IN1 Discrete Input Open / Ground sensing input, channel 1 2 IN2 Discrete Input Open / Ground sensing input, channel 2 3 IN3 Discrete Input Open / Ground sensing input, channel 3 4 IN4 Discrete Input Open / Ground sensing input, channel 4 5 IN5 Discrete Input Open / Ground sensing input, channel 5 6 IN6 Discrete Input Open / Ground sensing input, channel 6 7 OE Digital input Output Enable. OUT1-OUT6 are high-impedance if OE is high 8 CE Digital input Chip Enable. OUT1-OUT6 are high-impedance if CE is high Positive supply voltage 5.0 V 9 VDD Power 10 OUT6 Tri-state output Logic output, channel 6 11 OUT5 Tri-state output Logic output, channel 5 12 OUT4 Tri-state output Logic output, channel 4 13 OUT3 Tri-state output Logic output, channel 3 14 OUT2 Tri-state output Logic output, channel 2 15 OUT1 Tri-state output Logic output, channel 1 16 GND Power Ground RECOMMENDED OPERATING CONDITIONS ABSOLUTE MAXIMUM RATINGS Supply voltage (VDD) Logic input voltage range Discrete input voltage range Power dissipation at 25°C Solder temperature Storage temperature -0.3 V to +7 V -0.3 V to +5.5 V -5 V to + 35 V 350 mW 275°C for 10 sec -65°C to +150°C Supply Voltage VDD .................................. 4.5 V to 5.5 V Operating Temperature Range Industrial Screening ......... -40°C to +85°C Hi-Temp Screening ........ -55°C to +125°C NOTE: Stresses above absolute maximum ratings or outside recommended operating conditions may cause permanent damage to the device. These are stress ratings only. Operation at the limits is not recommended. VDD = 5.0V ± 10%, GND = 0V, TA = Operating Temperature Range (unless otherwise specified). PARAMETER SYMBOL CONDITION MIN Ground state input voltage VSG Input voltage to give high output Open state input voltage VSO Input voltage to give low output 3.5 Ground state input resistor RIG 0 Open state input resistor RIO Resistor from input to ground to give high output Resistor from input to ground to give low output Input source current IIO TYP MAX UNITS 3.0 V 100 Ω DISCRETE INPUTS Current sourced into 100Ω V KΩ 100 -100 -330 µA to ground Reverse leakage current IIR VIN = 35 V, VDD = 0 V HOLT INTEGRATED CIRCUITS 2 5.0 mA HI-8420 VDD = 5.0V ± 10%, GND = 0V, TA = Operating Temperature Range (unless otherwise specified). PARAMETER SYMBOL CONDITION MIN TYP MAX UNITS LOGIC INPUTS (CE, OE) Input Voltage Input voltage HI VIH Input voltage LO VIL Input sink IIH VIH = VDD Input source IIL VIL = 0 V -1.0 High VOH IOH = -5 mA 2.4 Low VOL IOL = 5 mA High VOH IOH = -100 uA Low VOL IOL = 100 uA 0.2 V IOZ VOUT = 0 V or VDD ±10 µA IDD VIN = VDD (all inputs) 10 mA Input current 2.0 V 0.8 V 1.0 µA µA OUTPUTS Logic output voltage Logic output voltage (CMOS) Tri-state output current V 0.4 V VDD - 0.2 V SUPPLY CURRENT VDD current 5 SWITCHING CHARACTERISTICS Propagation delay 150 ns Output enable time IN to OUT tLH, tHL tZL, tZH From CE or OE 25 ns Output disable time tLZ, tHZ From CE or OE 25 ns CE or OE INx tZL, tZH tZL, tZH OUTx tLH tHL OUTx Output Enable Timing Input to Output Propagation Delay ORDERING INFORMATION HI-8420PSI 16 PIN PLASTIC SOIC (NARROW BODY) -40°C TO +85°C I NO SOLDER HI-8420PST 16 PIN PLASTIC SOIC (NARROW BODY) -55°C TO +125°C T NO SOLDER HOLT INTEGRATED CIRCUITS 3 PACKAGE DIMENSIONS inches (millimeters) 16-PIN PLASTIC SMALL OUTLINE (SOIC) - NB (Narrow Body) .00865 ± .00115 (.220 ± .029) .3898 ± .0039 (9.901 ± .099) .236 ± .008 (6.00 ± .20) Top View .0165 ± .0035 (.419 ± ..089) Package Type: 16HN .1535 ± .0035 (3.899 ± .089) Detail A .061 ± .007 (1.549 ± .178) 0°° to 8°° .050 ± .010 (1.270 ± .254) .033 ± .017 (.838 ± .432) HOLT INTEGRATED CIRCUITS 4 Detail A .0069 ± .0029 (.175 ± .074)