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74LV688D Arkusz danych(PDF) 2 Page - NXP Semiconductors |
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74LV688D Arkusz danych(HTML) 2 Page - NXP Semiconductors |
2 / 12 page Philips Semiconductors Product specification 74LV688 8-bit magnitude comparator 2 1998 Jun 23 853-1878 19618 FEATURES • Wide operating voltage: 1.0 to 5.5V • Optimized for low voltage applications: 1.0V to 3.6V • Accepts TTL input levels between V CC = 2.7V and VCC = 3.6V • Typical V OLP (output ground bounce) < 0.8V at VCC = 3.3V, Tamb = 25°C • Typical V OHV (output VOH undershoot) > 2V at VCC = 3.3V, Tamb =25°C • Compare two 8-bit words • Output capability: standard • I CC category: MSI DESCRIPTION The 74LV688 is a high-speed Si-gate CMOS device, pin compatible with the 74HC/HCT688 The 74LV688 is an 8-bit magnitude comparator. It performs comparisons of two 8-bit binary or BCD words. The output provides P = Q (equal-to). QUICK REFERENCE DATA SYMBOL PARAMETER CONDITIONS TYPICAL UNIT tPHL/tPLH Propagation delay Pn, Qn to P=Q CL = 15pF VCC = 3.3V 17 ns CI Input capacitance 3.5 pF CPD Power dissipation capacitance per gate VI = GND to VCC1 22 pF NOTE: 1. CPD is used to determine the dynamic power dissipation (PD in mW): PD = CPD × VCC2 × fi + S (CL × VCC2 × fo) where: fi = input frequency in MHz; CL = output load capacity in pF; fo = output frequency in MHz; VCC = supply voltage in V; S (CL × VCC2 × fo) = sum of outputs. ORDERING INFORMATION PACKAGES TEMPERATURE RANGE OUTSIDE NORTH AMERICA NORTH AMERICA PKG. DWG. # 20-Pin Plastic DIL –40 °C to +125°C 74LV688 N 74LV688 N SOT146-1 20-Pin Plastic SO –40 °C to +125°C 74LV688 D 74LV688 D SOT163-1 20-Pin Plastic SSOP Type II –40 °C to +125°C 74LV688 DB 74LV688 DB SOT339-1 20-Pin Plastic TSSOP Type I –40 °C to +125°C 74LV688 PW 74LV688PW DH SOT360-1 PIN CONFIGURATION 14 13 12 11 10 9 8 7 6 5 4 3 2 1 GND VCC 15 16 17 18 19 20 E P0 Q0 P1 Q1 P2 Q2 P3 Q3 P = Q Q7 P7 Q6 P6 Q5 P5 Q4 P4 SY00054 PIN DESCRIPTION PIN NO. SYMBOL FUNCTION 1 E Enable input (active LOW) 2, 4, 6, 8, 11, 13, 15, 17 P0 to P7 Word inputs 3, 5, 7, 9, 12, 14, 16, 18 Q0 to Q7 Word inputs 10 GND Ground (0V) 19 P=Q Equal to output 20 VCC Positive Supply Voltage |
Podobny numer części - 74LV688D |
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Podobny opis - 74LV688D |
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