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| HD74HC244 Octal Buffers/Line Drivers/Line Receivers (with noninverted 3-state outputs) REJ03D0597-0200 (Previous ADE-205-474) Rev.2.00 Jan 31, 2006 Description The HD74HC244 is a non-inverting buffer and has two active low enables (1G and 2G). Each enable independently controls 4 buffers. This device does not have schmitt trigger inputs. Features * * * * * * High Speed Operation: tpd = 11 ns typ (CL = 50 pF) High Output Current: Fanout of 15 LSTTL Loads Wide Operating Voltage: VCC = 2 to 6 V Low Input Current: 1 A max Low Quiescent Supply Current: ICC (static) = 4 A max (Ta = 25C) Ordering Information Part Name HD74HC244P HD74HC244FPEL HD74HC244RPEL HD74HC244TELL Package Type DILP-20 pin SOP-20 pin (JEITA) SOP-20 pin (JEDEC) TSSOP-20 pin Package Code (Previous Code) PRDP0020AC-B (DP-20NEV) PRSP0020DD-B (FP-20DAV) PRSP0020DC-A (FP-20DBV) PTSP0020JB-A (TTP-20DAV) Package Abbreviation P FP RP T -- EL (2,000 pcs/reel) EL (1,000 pcs/reel) ELL(2,000 pcs/reel) Taping Abbreviation (Quantity) Note: Please consult the sales office for the above package availability. Function Table Inputs G H L L H L X Z : : : : high level low level irrelevant off (high-impedance) state of a 3-state output A X H L Output Y Z H L Rev.2.00 Jan 31, 2006 page 1 of 7 HD74HC244 Pin Arrangement 1G1 1A1 2Y4 1A2 2Y3 1A3 2Y2 1A4 2Y1 1 2 3 4 5 6 7 8 9 20 VCC 19 2G 18 1Y1 17 2A4 16 1Y2 15 2A3 14 1Y3 13 2A2 12 1Y4 11 2A1 (Top view) GND 10 Logic Diagram To three other 7 inverters One of 8 inverters VCC Input A Y Strobe G Rev.2.00 Jan 31, 2006 page 2 of 7 HD74HC244 Absolute Maximum Ratings Item Supply voltage range Input / Output voltage Input / Output diode current Output current VCC, GND current Power dissipation Storage temperature Symbol VCC VIN, VOUT IIK, IOK IO ICC or IGND PT Tstg Ratings -0.5 to 7.0 -0.5 to VCC +0.5 20 35 75 500 -65 to +150 Unit V V mA mA mA mW C Note: The absolute maximum ratings are values, which must not individually be exceeded, and furthermore, no two of which may be realized at the same time. Recommended Operating Conditions Item Supply voltage Input / Output voltage Operating temperature Input rise / fall time*1 Symbol VCC VIN, VOUT Ta tr, tf Ratings 2 to 6 0 to VCC -40 to 85 0 to 1000 0 to 500 0 to 400 Unit V V Conditions C ns VCC = 2.0 V VCC = 4.5 V VCC = 6.0 V Notes: 1. This item guarantees maximum limit when one input switches. Waveform: Refer to test circuit of switching characteristics. Electrical Characteristics Item Input voltage Symbol VCC (V) VIH 2.0 4.5 6.0 2.0 4.5 6.0 2.0 4.5 6.0 4.5 6.0 2.0 4.5 6.0 4.5 6.0 6.0 6.0 6.0 Min 1.5 3.15 4.2 -- -- -- 1.9 4.4 5.9 4.18 5.68 -- -- -- -- -- -- -- -- Ta = 25C Typ Max -- -- -- -- -- -- -- 0.5 -- 1.35 -- 2.0 4.5 6.0 -- -- 0.0 0.0 0.0 -- -- -- -- -- 1.8 -- -- -- -- -- 0.1 0.1 0.1 0.26 0.26 0.5 0.1 4.0 Ta = -40 to+85C Unit Min Max 1.5 -- V 3.15 -- 4.2 -- -- 0.5 V -- 1.35 -- 1.9 4.4 5.9 4.13 5.63 -- -- -- -- -- -- -- -- 1.8 -- -- -- -- -- 0.1 0.1 0.1 0.33 0.33 5.0 1.0 40 V Test Conditions VIL Output voltage VOH Vin = VIH or VIL IOH = -20 A IOH = -6 mA IOH = -7.8 mA V Vin = VIH or VIL IOL = 20 A VOL IOL = 6 mA IOL = 7.8 mA A A A Vin = VIH or VIL, Vout = VCC or GND Vin = VCC or GND Vin = VCC or GND, Iout = 0 A Off-state output current Input current Quiescent supply current IOZ Iin ICC Rev.2.00 Jan 31, 2006 page 3 of 7 HD74HC244 Switching Characteristics (CL = 50 pF, Input tr = tf = 6 ns) Item Propagation delay time Symbol VCC (V) tPHL 2.0 4.5 6.0 2.0 4.5 6.0 2.0 4.5 6.0 2.0 4.5 6.0 2.0 4.5 6.0 2.0 4.5 6.0 Output rise/fall time Input capacitance tTLH tTHL Cin 2.0 4.5 6.0 -- Ta = 25C Min Typ Max -- -- 90 -- 12 18 -- -- 15 -- -- 90 -- 10 18 -- -- 15 -- -- 150 -- 11 30 -- -- 26 -- -- 150 -- 12 30 -- -- 26 -- -- 150 -- 16 30 -- -- 26 -- -- 150 -- -- -- -- -- -- 19 -- -- 4 -- 5 30 26 60 12 10 10 Ta = -40 to +85C Unit Min Max -- 115 ns -- 23 -- 20 -- 115 ns -- 23 -- 20 -- 190 ns -- 38 -- 33 -- 190 ns -- 38 -- 33 -- 190 ns -- 38 -- 33 -- 190 ns -- -- -- -- -- -- 38 33 75 15 13 10 ns Test Conditions tPLH Output enable time tZL tZH Output disable time tLZ tHZ pF Test Circuit VCC VCC 1G, 2G See Function Table Output 1 k S1 OPEN GND Input Pulse Generator Zout = 50 1Y1 to 2Y4 1A1 to 2A4 CL = 50 pF VCC TEST t PLH / t PHL t ZH/ t HZ t ZL / t LZ S1 OPEN GND VCC Note : 1. CL includes probe and jig capacitance. Rev.2.00 Jan 31, 2006 page 4 of 7 HD74HC244 Waveforms * Waveform - 1 tr 90 % 50 % 10 % t PLH 90 % Output Y 50 % 10 % t TLH 90 % 50 % 10 % t PHL 90 % 50 % 10 % t THL tf VCC 0V Input A VOH VOL * Waveform - 2 90 % Input G tf tr 90 % 50 % 10 % t LZ VCC 0V VOH 50 % 10 % t ZL Waveform - A t ZH Waveform - B 50 % 10 % t HZ 90 % VOL VOH VOL 50 % Notes : 1. Input waveform : PRR 1 MHz, duty cycle 50%, tr 6 ns, tf 6 ns 2. Waveform- A is for an output with internal conditions such that the output is low except when disabled by the output control. 3. Waveform- B is for an output with internal conditions such that the output is high except when disabled by the output control. 4. The output are measured one at a time with one transition per measurement. Rev.2.00 Jan 31, 2006 page 5 of 7 HD74HC244 Package Dimensions JEITA Package Code P-DIP20-6.3x24.5-2.54 RENESAS Code PRDP0020AC-B Previous Code DP-20NEV MASS[Typ.] 1.26g D 20 11 1 0.89 b3 10 Z E Reference Symbol Dimension in Millimeters Min Nom 7.62 24.50 6.30 25.40 7.00 5.08 0.51 0.40 0.48 1.30 0.19 0 2.29 2.54 0.25 0.31 15 2.79 1.27 2.54 0.56 Max A A1 e D E L 1 A A1 b p 3 e bp e1 c b c e Z ( Ni/Pd/Au plating ) L JEITA Package Code P-SOP20-5.5x12.6-1.27 RENESAS Code PRSP0020DD-B Previous Code FP-20DAV MASS[Typ.] 0.31g *1 D 11 F NOTE) 1. DIMENSIONS"*1 (Nom)"AND"*2" DO NOT INCLUDE MOLD FLASH. 2. DIMENSION"*3"DOES NOT INCLUDE TRIM OFFSET. 20 bp E HE Index mark Reference Symbol *2 c Dimension in Millimeters Min Nom 12.60 5.50 Max 13.0 Terminal cross section ( Ni/Pd/Au plating ) 1 Z e *3 D E A2 A1 0.00 10 bp x M L1 0.10 0.20 2.20 A bp b1 c c 1 0.34 0.40 0.46 0.15 0.20 0.25 A HE 0 7.50 7.80 1.27 8 8.00 y e x y A1 L 0.12 0.15 0.80 0.50 1 Detail F Z L L 0.70 1.15 0.90 Rev.2.00 Jan 31, 2006 page 6 of 7 HD74HC244 JEITA Package Code P-SOP20-7.5x12.8-1.27 RENESAS Code PRSP0020DC-A Previous Code FP-20DBV MASS[Typ.] 0.52g *1 D F 11 NOTE) 1. DIMENSIONS"*1 (Nom)"AND"*2" @ DO NOT INCLUDE MOLD FLASH. 2. DIMENSION"*3"DOES NOT @ INCLUDE TRIM OFFSET. 20 bp *2 HE E Index mark Reference Symbol c Dimension in Millimeters Min Nom 12.80 7.50 Max 13.2 Terminal cross section ( Ni/Pd/Au plating ) 1 Z e *3 D E A2 10 bp x M L1 A1 A bp b1 c c 1 0.10 0.20 0.30 2.65 0.34 0.40 0.46 0.20 0.25 0.30 A HE 0 10.00 10.40 1.27 8 10.65 A1 y L e x y Z 0.12 0.15 0.935 0.40 1 Detail F L L 0.70 1.45 1.27 JEITA Package Code P-TSSOP20-4.4x6.5-0.65 RENESAS Code PTSP0020JB-A Previous Code TTP-20DAV MASS[Typ.] 0.07g *1 D F 11 20 NOTE) 1. DIMENSIONS"*1 (Nom)"AND"*2" DO NOT INCLUDE MOLD FLASH. 2. DIMENSION"*3"DOES NOT INCLUDE TRIM OFFSET. bp HE *2 E c Reference Symbol Dimension in Millimeters Min Nom 6.50 4.40 Max 6.80 Index mark Terminal cross section ( Ni/Pd/Au plating ) D E A2 A1 0.03 0.07 0.10 1.10 1 Z e *3 10 bp L1 x M A bp b1 c c1 0.10 0.15 0.15 0.20 0.25 0.20 A HE 0 6.20 6.40 0.65 8 6.60 A1 L y e x y 0.13 0.10 0.65 0.4 1 Detail F Z L L 0.5 1.0 0.6 Rev.2.00 Jan 31, 2006 page 7 of 7 Sales Strategic Planning Div. Keep safety first in your circuit designs! Nippon Bldg., 2-6-2, Ohte-machi, Chiyoda-ku, Tokyo 100-0004, Japan 1. Renesas Technology Corp. puts the maximum effort into making semiconductor products better and more reliable, but there is always the possibility that trouble may occur with them. Trouble with semiconductors may lead to personal injury, fire or property damage. Remember to give due consideration to safety when making your circuit designs, with appropriate measures such as (i) placement of substitutive, auxiliary circuits, (ii) use of nonflammable material or (iii) prevention against any malfunction or mishap. Notes regarding these materials 1. These materials are intended as a reference to assist our customers in the selection of the Renesas Technology Corp. product best suited to the customer's application; they do not convey any license under any intellectual property rights, or any other rights, belonging to Renesas Technology Corp. or a third party. 2. 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