HD74HC245 Octal Bus Transceivers (with 3-state outputs) REJ03D0598–0200 (Previous ADE-205-475) Rev.2.00 Jan 31, 2006 Description Each device has an active low enable input G and a direction control input, DIR. When DIR is high, data flows from the A inputs to the B outputs. When DIR is low, data flows from the B inputs to the A outputs. The HD74HC245 transfers true data from one bus to the other. This device does not have schmitt trigger inputs. Features • • • • • • High Speed Operation: tpd = 8 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) HD74HC245P DILP-20 pin PRDP0020AC-B (DP-20NEV) P — HD74HC245FPEL SOP-20 pin (JEITA) PRSP0020DD-B (FP-20DAV) FP EL (2,000 pcs/reel) HD74HC245RPEL SOP-20 pin (JEDEC) PRSP0020DC-A (FP-20DBV) RP EL (1,000 pcs/reel) PTSP0020JB-A T (TTP-20DAV) Note: Please consult the sales office for the above package availability. HD74HC245TELL TSSOP-20 pin ELL (2,000 pcs/reel) Function Table H : L : X : Enable G L L H high level low level irrelevant Rev.2.00 Jan 31, 2006 page 1 of 7 Direction Control DIR L H X Operation B data to A bus A data to B bus Isolation HD74HC245 Pin Arrangement DIR 1 20 VCC A1 2 19 Enable G A2 3 18 B1 A3 4 17 B2 A4 5 16 B3 A5 6 15 B4 A6 7 14 B5 A7 8 13 B6 A8 9 12 B7 GND 10 11 B8 (Top view) 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 Symbol VCC VIN, VOUT Operating temperature Input rise / fall time*1 Ta tr, tf Ratings 2 to 6 0 to VCC –40 to 85 0 to 1000 0 to 500 0 to 400 Notes: 1. This item guarantees maximum limit when one input switches. Waveform: Refer to test circuit of switching characteristics. Rev.2.00 Jan 31, 2006 page 2 of 7 Unit V V Conditions °C ns VCC = 2.0 V VCC = 4.5 V VCC = 6.0 V HD74HC245 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 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 Rev.2.00 Jan 31, 2006 page 3 of 7 Ta = 25°C Min Typ Max 1.5 — — 3.15 — — 4.2 — — — — 0.5 — — 1.35 — — 1.8 1.9 2.0 — 4.4 4.5 — 5.9 6.0 — 4.18 — — 5.68 — — — 0.0 0.1 — 0.0 0.1 — 0.0 0.1 — — 0.26 — — 0.26 — — ±0.5 — — — — ±0.1 4.0 Ta = –40 to+85°C Unit Test Conditions Min Max 1.5 — V 3.15 — 4.2 — — 0.5 V — 1.35 — 1.8 1.9 — V Vin = VIH or VIL IOH = –20 µA 4.4 — 5.9 — 4.13 — IOH = –6 mA 5.63 — IOH = –7.8 mA — 0.1 V Vin = VIH or VIL IOL = 20 µA — 0.1 — 0.1 — 0.33 IOL = 6 mA — 0.33 IOL = 7.8 mA — ±5.0 µA Vin = VIH or VIL, Vout = VCC or GND — ±1.0 µA Vin = VCC or GND — 40 µA Vin = VCC or GND, Iout = 0 µA HD74HC245 Switching Characteristics (CL = 50 pF, Input tr = tf = 6 ns) Item Symbol VCC (V) Propagation delay time 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 tPLH Output enable time tZL tZH Output disable time tLZ tHZ Output rise/fall time tTLH tTHL Input capacitance Cin 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 Pulse Generator Zout = 50 Ω See Function Table G Input Output A1 S1 1 KΩ S2 B1 OPEN GND CL = 50 pF VCC DIR TEST t PLH / t PHL S2 OPEN t ZH/ t HZ t ZL / t LZ GND VCC Note : 1. CL includes probe and jig capacitance. 2. A2–B2, A3–B3, A4–B4, A5–B5, A6–B6, A7–B7, A8–B8 are identical to above load circuit. 3. S1 is a input / output switch. Rev.2.00 Jan 31, 2006 page 4 of 7 HD74HC245 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 HD74HC245 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 HD74HC245 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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