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| HD74AC245/HD74ACT245 Octal Bi-directional Transceiver with 3-State Input/Output REJ03D0263-0200Z (Previous ADE-205-384 (Z)) Rev.2.00 Jul.16.2004 Description The HD74AC245/HD74ACT245 contains eight non-inverting bidirectional buffers with 3-state outputs and is intended for bus-oriented applications. Current sinking capability is 24 mA at both the A and B ports. The Transmit/Receive (T/R) input determines the direction of data flow through the bidirectional transceiver. Transmit (active-High) enables data from A ports to B ports; Receive (active-Low) enables data from B ports to A ports. The Output Enable input, when High, disables, both A and B ports by placing them in a High Z condition. Features * Noninverting Buffers * Bi-directional Data Path * A and B Outputs Source/Sink 24 mA * HD74ACT245 has TTL-Compatible Inputs * Ordering Information: Ex. HD74AC245 Part Name HD74AC245P HD74AC245FPEL HD74AC245RPEL HD74AC245TELL Package Type DIP-20 pin SOP-20 pin (JEITA) TSSOP-20 pin Package Code Package Abbreviation Taping Abbreviation (Quantity) DP-20N, -20NEV P FP-20DAV TTP-20DAV FP RP T -- EL (2,000 pcs/reel) EL (1,000 pcs/reel) ELL (2,000 pcs/reel) SOP-20 pin (JEDEC) FP-20DBV Notes: 1. Please consult the sales office for the above package availability. 2. The packages with lead-free pins are distinguished from the conventional products by adding V at the end of the package code. Rev.2.00, Jul.16.2004, page 1 of 8 HD74AC245/HD74ACT245 Pin Names OE T/R A0 to A7 B0 to B7 Output Enable Input Transmit/Receive Input Side A 3-State Inputs or 3-State Outputs Side B 3-State Inputs or 3-State Outputs Pin Arrangement T/R 1 A0 2 A1 3 A2 4 A3 5 A4 6 A5 7 A6 8 A7 9 GND 10 (Top view) 20 VCC 19 OE 18 B0 17 B1 16 B2 15 B3 14 B4 13 B5 12 B6 11 B7 Truth Tables Inputs OE L L H H: L: X: High Voltage Level Low Voltage Level Immaterial L H X T/R R Bus B Data to Bus A Bus A Data to Bus B High Z State Outputs Absolute Maximum Ratings Item Supply voltage DC input diode current DC input voltage DC output diode current DC output voltage DC output source or sink current DC VCC or ground current per output pin Storage temperature Symbol VCC IIK VI IOK VO IO ICC, IGND Tstg Ratings -0.5 to 7 -20 20 -0.5 to Vcc+0.5 -50 50 -0.5 to Vcc+0.5 50 50 -65 to +150 Unit V mA mA V mA mA V mA mA C Condition VI = -0.5V VI = Vcc+0.5V VO = -0.5V VO = Vcc+0.5V Rev.2.00, Jul.16.2004, page 2 of 8 HD74AC245/HD74ACT245 Recommended Operating Conditions: HD74AC245 Item Supply voltage Input and Output voltage Operating temperature Input rise and fall time (except Schmitt inputs) VIN 30% to 70% VCC Symbol VCC VI, VO Ta tr, tf Ratings 2 to 6 0 to VCC -40 to +85 8 V V C ns/V VCC = 3.0V VCC = 4.5 V VCC = 5.5 V Unit Condition DC Characteristics: HD74AC245 Item Symbol VIH Vcc (V) 3.0 4.5 5.5 VIL 3.0 4.5 5.5 3.0 4.5 5.5 3.0 4.5 VOL 5.5 3.0 4.5 5.5 3.0 4.5 Input leakage current 3 State current IIN IOZ 5.5 5.5 5.5 min. 2.1 3.15 3.85 -- -- -- 2.9 4.4 5.4 2.58 3.94 4.94 -- -- -- -- -- -- -- -- Ta = 25C typ. 1.5 2.25 2.75 1.50 2.25 2.75 2.99 4.49 5.49 -- -- -- 0.002 0.001 0.001 -- -- -- -- -- max. -- -- -- 0.9 1.35 1.65 -- -- -- -- -- -- 0.1 0.1 0.1 0.32 0.32 0.32 0.1 0.5 Ta = -40 to +85C min. max. 2.1 -- 3.15 3.85 -- -- -- 2.9 4.4 5.4 2.48 3.80 4.80 -- -- -- -- -- -- -- -- -- -- 0.9 1.35 1.65 -- -- -- -- -- -- 0.1 0.1 0.1 0.37 0.37 0.37 1.0 5.0 A A V VOUT = 0.1 V or VCC -0.1 V Unit Condition Input Voltage V VOUT = 0.1 V or VCC -0.1 V Output voltage VOH VIN = VIL or VIH IOUT = -50 A VIN = VIL or VIH IOH = -12 mA IOH = -24 mA IOH = -24 mA VIN = VIL or VIH IOUT = 50 A VIN = VIL or VIH IOL = 12 mA IOL = 24 mA IOL = 24 mA VIN = VCC or GND VIN(OE) = VIL, VIH VIN = VCC or GND VOUT = VCC or GND VOLD = 1.1 V VOHD = 3.85 V VIN = VCC or ground Dynamic output current* Quiescent supply current IOLD IOHD ICC 5.5 5.5 5.5 -- -- -- -- -- -- -- -- 8.0 86 -75 -- -- -- 80 mA mA A *Maximum test duration 2.0 ms, one output loaded at a time. Recommended Operating Conditions: HD74ACT245 Item Supply voltage Input and output voltage Operating temperature Input rise and fall time (except Schmitt inputs) VIN 0.8 to 2.0 V Symbol VCC VI, VO Ta tr, tf Ratings 2 to 6 0 to VCC -40 to +85 8 V V C ns/V VCC = 4.5V VCC = 5.5V Unit Condition Rev.2.00, Jul.16.2004, page 3 of 8 HD74AC245/HD74ACT245 DC Characteristics: HD74ACT245 Item Symbol VIH VIL Output voltage VOH VCC (V) 4.5 5.5 4.5 5.5 4.5 5.5 4.5 VOL 5.5 4.5 5.5 4.5 Input current 3 State current ICC/input current Dynamic output current* Quiescent supply current IIN IOZ ICCT IOLD IOHD ICC 5.5 5.5 5.5 5.5 5.5 5.5 5.5 min. 2.0 2.0 -- -- 4.4 5.4 3.94 4.94 -- -- -- -- -- -- -- -- -- -- Ta = 25C typ. 1.5 1.5 1.5 1.5 4.49 5.49 -- -- 0.001 0.001 -- -- -- -- 0.6 -- -- -- max. -- -- 0.8 0.8 -- -- -- -- 0.1 0.1 0.32 0.32 0.1 0.5 -- -- -- 8.0 Ta = -40 to +85C min. max. 2.0 -- 2.0 -- -- 4.4 5.4 3.80 4.80 -- -- -- -- -- -- -- 86 -75 -- -- 0.8 0.8 -- -- -- -- 0.1 0.1 0.37 0.37 1.0 5.0 1.5 -- -- 80 A A mA mA mA A V Unit Condition Input voltage V VOUT = 0.1 V or VCC-0.1 V VOUT = 0.1 V or VCC -0.1 V VIN = VIL or VIH IOUT = -50 A VIN = VIL VIN = VIL or VIH IOUT = 50 A VIN = VIL VIN = VCC or GND VIN = VIL, VIH VOUT = VCC or GND VIN = VCC-2.1 V VOLD = 1.1 V VOHD = 3.85 V VIN = VCC or ground IOL = 24 mA IOL = 24 mA IOH = -24 mA IOH = -24 mA *Maximum test duration 2.0 ms, one output loaded at a time. AC Characteristics: HD74AC245 Ta = +25C CL = 50 pF Min Typ Max 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 5.0 3.5 5.0 3.5 7.0 5.0 7.5 5.5 6.5 5.5 7.0 5.5 8.5 6.5 8.5 6.0 11.5 8.5 12.0 9.0 12.0 9.0 11.5 9.0 Ta = -40C to +85C CL = 50 pF Min Max 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 9.0 7.0 9.0 7.0 12.5 9.0 13.5 9.5 12.5 10.0 13.0 10.0 ns ns ns ns ns ns Item Propagation delay Data to output Propagation delay Data to output Output enable time Output enable time Output disable time Output disable time Note: Symbol tPLH tPHL tZH tZL tHZ tLZ VCC (V)*1 3.3 5.0 3.3 5.0 3.3 5.0 3.3 5.0 3.3 5.0 3.3 5.0 Unit 1. Voltage Range 3.3 is 3.3 V 0.3 V Voltage Range 5.0 is 5.0 V 0.5 V Rev.2.00, Jul.16.2004, page 4 of 8 HD74AC245/HD74ACT245 AC Characteristics: HD74ACT245 Ta = +25C CL = 50 pF Item Propagation delay Data to output Propagation delay Data to output Output enable time Output enable time Output disable time Output disable time Note: Symbol tPLH tPHL tZH tZL tHZ tLZ VCC (V)*1 Min 5.0 1.0 5.0 5.0 5.0 5.0 5.0 1.0 1.0 1.0 1.0 1.0 Typ 4.0 4.0 5.0 5.5 5.5 5.0 Max 7.5 8.0 10.0 10.0 10.0 10.0 Ta = -40C to +85C CL = 50 pF Min 1.0 1.0 1.0 1.0 1.0 1.0 8.0 9.0 11.0 12.0 11.0 11.0 Max ns ns ns ns ns ns Unit 1. Voltage Range 5.0 is 5.0 V 0.5 V Capacitance Item Input capacitance Input/output capacitance Power dissipation capacitance Symbol CIN CI/O CPD Typ 4.5 15.0 45.0 pF pF pF Unit VCC = 5.5 V VCC = 5.5 V VCC = 5.0 V Condition Rev.2.00, Jul.16.2004, page 5 of 8 HD74AC245/HD74ACT245 Package Dimensions As of January, 2003 Unit: mm 24.50 25.40 Max 20 11 7.00 Max 6.30 1 0.89 1.27 Max 10 1.30 2.54 Min 5.08 Max 7.62 0.51 Min 2.54 0.25 0.48 0.10 0.25 - 0.05 0 - 15 + 0.11 Package Code JEDEC JEITA Mass (reference value) DP-20N -- Conforms 1.26 g Unit: mm 24.50 25.40 Max 20 11 1 0.89 1.27 Max 10 1.30 7.62 7.00 Max 2.54 Min 5.08 Max 0.51 Min 6.30 2.54 0.25 *0.48 0.08 *0.25 0.06 0 - 15 *NI/Pd/AU Plating Package Code JEDEC JEITA Mass (reference value) DP-20NEV -- Conforms 1.26 g Rev.2.00, Jul.16.2004, page 6 of 8 HD74AC245/HD74ACT245 As of January, 2003 12.6 13 Max 20 Unit: mm 11 1 10 5.5 0.80 Max 2.20 Max *0.20 0.05 0.20 7.80 + 0.30 - 1.15 1.27 *0.40 0.06 0.10 0.10 0 - 8 0.70 0.20 0.15 0.12 M *Ni/Pd/Au plating Package Code JEDEC JEITA Mass (reference value) FP-20DAV -- Conforms 0.31 g As of January, 2003 12.8 13.2 Max 20 11 7.50 Unit: mm 2.65 Max 1 0.935 Max 10 *0.25 0.05 0.25 10.40 + 0.40 - 1.45 0.20 0.10 0 - 8 0.57 0.70 + 0.30 - 1.27 *0.40 0.06 0.15 0.12 M *Ni/Pd/Au plating Package Code JEDEC JEITA Mass (reference value) FP-20DBV Conforms -- 0.52 g Rev.2.00, Jul.16.2004, page 7 of 8 HD74AC245/HD74ACT245 As of January, 2003 Unit: mm 6.50 6.80 Max 20 11 4.40 1 10 0.65 1.0 6.40 0.20 0.65 Max *0.15 0.05 *0.20 0.05 0.13 M 1.10 Max 0.10 0.07 +0.03 -0.04 0 - 8 0.50 0.10 *Ni/Pd/Au plating Package Code JEDEC JEITA Mass (reference value) TTP-20DAV -- -- 0.07 g Rev.2.00, Jul.16.2004, page 8 of 8 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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