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 µA max Low Quiescent Supply Current: ICC (static) = 4 µA max (Ta = 25°C) Ordering Information Part Name Package Type Package Code (Previous Code) Package Abbreviation Taping Abbreviation (Quantity) HD74HC244P DILP-20 pin PRDP0020AC-B (DP-20NEV) P — HD74HC244FPEL SOP-20 pin (JEITA) PRSP0020DD-B (FP-20DAV) FP EL (2,000 pcs/reel) HD74HC244RPEL SOP-20 pin (JEDEC) RP EL (1,000 pcs/reel) HD74HC244TELL TSSOP-20 pin T ELL(2,000 pcs/reel) PRSP0020DC-A (FP-20DBV) PTSP0020JB-A (TTP-20DAV) 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 Rev.2.00 Jan 31, 2006 page 1 of 7 Output A X H L Y Z H L HD74HC244 Pin Arrangement 1G1 1 20 VCC 1A1 2 19 2G 2Y4 3 18 1Y1 1A2 4 17 2A4 2Y3 5 16 1Y2 1A3 6 15 2A3 2Y2 7 14 1Y3 1A4 8 13 2A2 2Y1 9 12 1Y4 GND 10 11 2A1 (Top view) 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 °C ns Conditions 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 VIL Output voltage VOH VOL Off-state output current Input current IOZ Quiescent supply current ICC Iin Ta = 25°C Typ Max — — — — — — — 0.5 — 1.35 Ta = –40 to+85°C Unit Min Max 1.5 — V 3.15 — 4.2 — — 0.5 V — 1.35 2.0 4.5 6.0 2.0 4.5 Min 1.5 3.15 4.2 — — 6.0 2.0 4.5 6.0 4.5 6.0 — 1.9 4.4 5.9 4.18 5.68 — 2.0 4.5 6.0 — — 1.8 — — — — — — 1.9 4.4 5.9 4.13 5.63 1.8 — — — — — 2.0 4.5 6.0 4.5 6.0 6.0 — — — — — — 0.0 0.0 0.0 — — — 0.1 0.1 0.1 0.26 0.26 ±0.5 — — — — — — 0.1 0.1 0.1 0.33 0.33 ±5.0 µA 6.0 6.0 — — — — ±0.1 4.0 — — ±1.0 40 µA µA Rev.2.00 Jan 31, 2006 page 3 of 7 V Test Conditions Vin = VIH or VIL IOH = –20 µA IOH = –6 mA IOH = –7.8 mA V Vin = VIH or VIL IOL = 20 µA IOL = 6 mA IOL = 7.8 mA Vin = VIH or VIL, Vout = VCC or GND Vin = VCC or GND Vin = VCC or GND, Iout = 0 µA HD74HC244 Switching Characteristics (CL = 50 pF, Input tr = tf = 6 ns) Item Symbol VCC (V) Propagation delay time tPHL tPLH Output enable time tZL tZH tLZ Output disable time tHZ Output rise/fall time tTLH tTHL Input capacitance Cin 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 Ta = 25°C Min Typ Max — — 90 — 12 18 — — 15 — — 90 — 10 18 — — 15 — — 150 — 11 30 — — 26 — — 150 — 12 30 — — 26 — — 150 — 16 30 — — 26 — — 150 Ta = –40 to +85°C 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 4.5 6.0 — — 19 — 30 26 — — 38 33 2.0 4.5 6.0 — — — — — — 4 — 5 60 12 10 10 — — — — 75 15 13 10 Test Conditions ns pF Test Circuit VCC VCC Input Pulse Generator Zout = 50 Ω See Function Table 1G, 2G Output 1 kΩ 1Y1 to 2Y4 OPEN GND 1A1 to 2A4 Note : 1. CL includes probe and jig capacitance. Rev.2.00 Jan 31, 2006 page 4 of 7 S1 CL = 50 pF VCC TEST t PLH / t PHL S1 OPEN t ZH/ t HZ t ZL / t LZ GND VCC HD74HC244 Waveforms • Waveform – 1 tr tf 90 % 50 % Input A VCC 90 % 50 % 10 % 10 % 90 % Output Y 50 % 10 % t TLH tf VOL t THL tr 90 % 50 % 10 % t ZL Input G VOH 90 % 50 % 10 % • Waveform – 2 0V t PHL t PLH VCC 90 % 50 % 10 % 0V t LZ VOH 50 % Waveform – A 10 % t ZH Waveform – B t HZ 50 % 90 % VOL VOH VOL 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 11 E 20 1 10 b3 0.89 Z Dimension in Millimeters Min Nom Max A Reference Symbol A1 e D 24.50 E 6.30 L θ c e1 A1 0.51 b p 0.40 b 3 JEITA Package Code P-SOP20-5.5x12.6-1.27 RENESAS Code PRSP0020DD-B *1 Previous Code FP-20DAV 0.48 0.56 c 0.19 θ 0° e 2.29 0.25 0.31 2.54 2.79 15° 1.27 L 2.54 MASS[Typ.] 0.31g D NOTE) 1. DIMENSIONS"*1 (Nom)"AND"*2" DO NOT INCLUDE MOLD FLASH. 2. DIMENSION"*3"DOES NOT INCLUDE TRIM OFFSET. F 20 7.00 1.30 Z ( Ni/Pd/Au plating ) 25.40 5.08 A bp e 7.62 1 11 c HE *2 E bp Index mark Reference Symbol Terminal cross section ( Ni/Pd/Au plating ) Z e *3 bp Nom Max D 12.60 13.0 E 5.50 A2 10 1 A1 x Dimension in Millimeters Min M 0.00 0.10 0.20 0.34 0.40 0.46 0.15 0.20 0.25 7.80 8.00 2.20 A L1 bp b1 c A c 1 θ 0° HE A1 θ y L Detail F e 8° 1.27 x 0.12 y 0.15 0.80 Z 0.50 L L Rev.2.00 Jan 31, 2006 page 6 of 7 7.50 1 0.70 1.15 0.90 HD74HC244 JEITA Package Code P-SOP20-7.5x12.8-1.27 RENESAS Code PRSP0020DC-A *1 Previous Code FP-20DBV MASS[Typ.] 0.52g D F 20 NOTE) 1. DIMENSIONS"*1 (Nom)"AND"*2" @ DO NOT INCLUDE MOLD FLASH. 2. DIMENSION"*3"DOES NOT @ INCLUDE TRIM OFFSET. 11 HE c *2 E bp Index mark Reference Symbol Terminal cross section ( Ni/Pd/Au plating ) Dimension in Millimeters Min Nom Max D 12.80 13.2 E 7.50 A2 10 1 *3 e Z bp x A1 M 0.10 0.20 0.30 0.34 0.40 0.46 0.20 0.25 0.30 10.40 10.65 A L1 2.65 bp b1 c A c A1 θ L y 1 θ 0° HE 10.00 8° 1.27 e x 0.12 y 0.15 0.935 Z L Detail F L JEITA Package Code P-TSSOP20-4.4x6.5-0.65 RENESAS Code PTSP0020JB-A *1 Previous Code TTP-20DAV 0.70 1.27 1.45 1 MASS[Typ.] 0.07g NOTE) 1. DIMENSIONS"*1 (Nom)"AND"*2" DO NOT INCLUDE MOLD FLASH. 2. DIMENSION"*3"DOES NOT INCLUDE TRIM OFFSET. D F 20 0.40 11 c HE *2 E bp Reference Symbol Terminal cross section ( Ni/Pd/Au plating ) Index mark Dimension in Millimeters Min Nom Max D 6.50 6.80 E 4.40 A2 A1 10 1 Z e *3 bp 0.03 0.07 0.10 0.15 0.20 0.25 0.10 0.15 0.20 6.40 6.60 A L1 x 1.10 bp M b1 c c1 A θ 0° HE A1 θ L y Detail F e 8° 0.65 x 0.13 y 0.10 0.65 Z L L Rev.2.00 Jan 31, 2006 page 7 of 7 6.20 0.4 1 0.5 1.0 0.6 Sales Strategic Planning Div. Nippon Bldg., 2-6-2, Ohte-machi, Chiyoda-ku, Tokyo 100-0004, Japan Keep safety first in your circuit designs! 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. 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