M54HC7245/7640/7643/7645 M74HC7245/7640/7643/7645 OCTAL BUS TRANSCEIVER (3-STATE): HC7645 NON INVERTING HC7640 INVERTING , HC7643 INVERTING/NON INVERTING . . . . . . . . HIGH SPEED tPD = 12 ns (TYP.) at VCC = 5V LOW POWER DISSIPATION o ICC = 4 µA (MAX.) at TA = 25 C HIGH NOISE IMMUNITY VH = 1.1 (TYP.) at VCC = 5V OUTPUT DRIVE CAPABILITY 15 LSTTL LOADS SYMMETRICAL OUTPUT IMPEDANCE |IOH| = IOL = 6 mA (MIN) BALANCED PROPAGATION DELAYS tPLH = tPHL WIDE OPERATING RANGE VCC (OPR) = 2V to 6V PIN AND FUNCTION COMPATIBLE WITH 54/74LS245/640/643 B1R (Plastic Package) F1R (Ceramic Package) M1R (Micro Package) C1R (Chip Carrier) ORDER CODES : M54HCXXXXF1R M74HCXXXXM1R M74HCXXXXB1R M74HCXXXXC1R DESCRIPTION The M54/74HC7245 HC7640, HC7643 and HC7645 utilise silicon gate C2MOS technology to achive operating speeds equivalent to LSTTL devices. Along with the low power dissipation and high noise 2 immunity of standads C MOS integrated circuit, it possesses the capability to drive 15 LSTTL loads. These IC’s are intended for two-way asynchronous communication between data buses, and the direction of data trasmission is determined by DIR input. The enable input (G) can be used to disable the device so that the buses are effectively isolated. The HC7245/640/7643/7645 have the same pin configuration and function as the HC245/640/643 and they have a hysteresis characteristics with each input, so HC7245/7640/7643/7645 can be used as a line receiver, etc. All input are equipped with protection circuits against static discharge and transient excess voltage. IT IS PROHIBITED TO APPLY A SIGNAL TO A BUS TERMINAL WHEN IT IS IN OUTPUT MODE AND WHEN A BUS THERMINAL IS FLOATING (HIGH IMPEDANCE STATE), IT IS REQUESTED TO FIX THE INPUT LEVEL BY MEANS OF EXTERNAL PULL DOWN OR PULL UP RESISTOR. PIN CONNECTION (top view) HC7640 HC7643 HC7645/HC7245 HC7245 is electrically and funcutionally the same as the HC7645 January 1994 1/10 M54/M74HC7245/7640/7643/7645 INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION PIN No SYMBOL 1 2, 3, 4, 5, 6, 7, 8, 9 DIR A1 to A8 Directional Control Data Inputs/Outputs NAME AND FUNCTION 18, 17, 16, 15, 14, 13, 12, 11 B1 to B8 Data Inputs/Outputs 19 G Output Enabel Input (Active LOW) 10 GND Ground (0V) 20 VCC Positive Supply Voltage IEC LOGIC SYMBOLS HC7640 HC7643 HC7645 TRUTH TABLE INPUT OUTPUT DIR L A BUS OUTPUT B BUS INPUT HC7640 A=B HC7643 A=B HC7645/7245 A=B L H INPUT OUTPUT B=A B=A B=A H X Z Z Z Z Z X: ”H” or ”L” Z: High impedance 2/10 FUNCTION G L M54/M74HC7245/ 7640/7643/7645 ABSOLUTE MAXIMUM RATINGS Symbol Value Unit VCC VI Supply Voltage DC Input Voltage -0.5 to +7 -0.5 to VCC + 0.5 V V VO DC Output Voltage -0.5 to VCC + 0.5 V IIK IOK DC Input Diode Current DC Output Diode Current ± 20 ± 20 mA mA IO DC Output Source Sink Current Per Output Pin ± 35 mA DC VCC or Ground Current ± 70 mA 500 (*) mW ICC or IGND Parameter PD Power Dissipation Tstg TL Storage Temperature Lead Temperature (10 sec) -65 to +150 300 o o C C Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition isnotimplied. (*) 500 mW: ≅ 65 oC derate to 300 mW by 10mW/oC: 65 oC to 85 oC RECOMMENDED OPERATING CONDITIONS Symbol VCC Parameter Supply Voltage VI Input Voltage VO Top Output Voltage Operating Temperature: M54HC Series M74HC Series Value 2 to 6 Unit V 0 to VCC V 0 to VCC -55 to +125 -40 to +85 V C o C o 3/10 M54/M74HC7245/7640/7643/7645 DC SPECIFICATIONS Test Conditions Value TA = 25 oC 54HC and 74HC Min. Typ. Max. -40 to 85 oC -55 to 125 oC 74HC 54HC Min. Max. Min. Max. Symbol Parameter VCC (V) VP Positive Threshold Voltage (An, Bn inputs) 2.0 1 1.25 1.5 1 1.5 1 1.5 4.5 6.0 2.3 3 2.7 3.5 3.15 4.2 2.3 3 3.15 4.2 2.3 3 3.15 4.2 2.0 0.3 0.65 0.9 0.3 0.9 0.3 0.9 4.5 1.13 1.6 2 1.13 2 1.13 2 6.0 1.5 2.3 2.6 1.5 2.6 1.5 2.6 2.0 0.3 0.6 1 0.3 1 0.3 1 4.5 6.0 0.6 0.8 1.1 1.2 1.4 1.7 0.6 0.8 1.4 1.7 0.6 0.8 1.4 1.7 VN VH VIH V IL V OH Negative Threshold Voltage (An, Bn inputs) Hysteresiis Voltage (An, Bn inputs) High Level Input Voltage (DIR, G inputs) Low Level Input Voltage (DIR, G inputs) High Level Output Voltage 2.0 1.5 1.5 1.5 4.5 6.0 3.15 4.2 3.15 4.2 3.15 4.2 2.0 0.5 0.5 0.5 1.35 1.8 1.35 1.8 1.35 1.8 4.5 6.0 4.5 VOL Low Level Output Voltage 6.0 2.0 4.5 6.0 4.5 6.0 II IOZ ICC 4/10 Input Leakage Current Quiescent Supply Current Quiescent Supply Current 6.0 V V V V 4.5 6.0 2.0 Unit V VI = IO=-20 µA VIH or V IL IO=-6.0 mA 1.9 2.0 1.9 1.9 4.4 5.9 4.5 6.0 4.4 5.9 4.4 5.9 4.18 4.31 4.13 4.10 IO=-7.8 mA 5.68 5.8 0.0 5.63 0.1 0.1 0.1 0.0 0.0 0.1 0.1 0.1 0.1 0.1 0.1 0.17 0.26 0.33 0.40 0.18 0.26 ±0.1 0.33 ±1 0.40 ±1 µA VI = IO= 20 µA VIH or V IL IO= 6.0 mA IO= 7.8 mA VI = VCC or GND V 5.60 V 6.0 VI = VCC or GND æ0.5 ±5 ±1 µA 6.0 VI = VCC or GND 4 40 80 µA M54/M74HC7245/ 7640/7643/7645 AC ELECTRICAL CHARACTERISTICS (C L = 50 pF, Input t r = tf = 6 ns) Test Conditions Value Symbol Parameter VCC (V) TA = 25 oC 54HC and 74HC Min. Typ. Max. tTLH tTHL Output Transition Time 2.0 25 60 75 90 4.5 6.0 7 6 12 10 15 13 18 15 tPLH tPHL Propagation Delay Time 2.0 61 125 156 190 4.5 15 25 31 38 tPZL tPZH Output Enable Time tPLZ tPHZ Output Disable Time CIN Input Capacitance COUT Output Capacitance Power Dissipation Capacitance CPD (*) -40 to 85 oC -55 to 125 oC 74HC 54HC Min. Max. Min. Max. Unit ns ns 6.0 13 21 27 32 2.0 77 150 188 225 19 16 30 26 38 32 45 38 84 150 188 225 21 18 30 26 38 32 45 38 ns 5 10 10 10 pF 4.5 6.0 RL = 1 KΩ 2.0 4.5 6.0 RL = 1 KΩ ns pF pF (*) CPD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without load. (Refer to Test Circuit). Average operting current can be obtained by the following equation. ICC(opr) = CPD •VCC •fIN + ICC/4 (per Gate) SWITCHING CHARACTERISTICS TEST WAVEFORM V CC GND V CC GND 5/10 M54/M74HC7245/7640/7643/7645 Plastic DIP20 (0.25) MECHANICAL DATA mm DIM. MIN. a1 0.254 B 1.39 TYP. inch MAX. MIN. TYP. MAX. 0.010 1.65 0.055 0.065 b 0.45 0.018 b1 0.25 0.010 D 25.4 1.000 E 8.5 0.335 e 2.54 0.100 e3 22.86 0.900 F 7.1 0.280 I 3.93 0.155 L Z 3.3 0.130 1.34 0.053 P001J 6/10 M54/M74HC7245/ 7640/7643/7645 Ceramic DIP20 MECHANICAL DATA mm DIM. MIN. TYP. inch MAX. MIN. TYP. MAX. A 25 0.984 B 7.8 0.307 D E 3.3 0.5 e3 0.130 1.78 0.020 22.86 0.070 0.900 F 2.29 2.79 0.090 0.110 G 0.4 0.55 0.016 0.022 I 1.27 1.52 0.050 0.060 L 0.22 0.31 0.009 0.012 M 0.51 1.27 0.020 0.050 N1 P Q 4° (min.), 15° (max.) 7.9 8.13 5.71 0.311 0.320 0.225 P057H 7/10 M54/M74HC7245/7640/7643/7645 SO20 MECHANICAL DATA mm DIM. MIN. TYP. A a1 inch MAX. MIN. TYP. 2.65 0.10 0.104 0.20 a2 MAX. 0.004 0.007 2.45 0.096 b 0.35 0.49 0.013 0.019 b1 0.23 0.32 0.009 0.012 C 0.50 0.020 c1 45° (typ.) D 12.60 13.00 0.496 0.512 E 10.00 10.65 0.393 0.419 e 1.27 0.050 e3 11.43 0.450 F 7.40 7.60 0.291 0.299 L 0.50 1.27 0.19 0.050 M S 0.75 0.029 8° (max.) P013L 8/10 M54/M74HC7245/ 7640/7643/7645 PLCC20 MECHANICAL DATA mm DIM. MIN. TYP. inch MAX. MIN. TYP. MAX. A 9.78 10.03 0.385 0.395 B 8.89 9.04 0.350 0.356 D 4.2 4.57 0.165 0.180 d1 2.54 0.100 d2 0.56 0.022 E 7.37 8.38 0.290 0.330 e 1.27 0.050 e3 5.08 0.200 F 0.38 0.015 G 0.101 0.004 M 1.27 0.050 M1 1.14 0.045 P027A 9/10 M54/M74HC7245/7640/7643/7645 Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsability for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may results from its use. No license is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. SGS-THOMSON Microelectronics products are not authorized for use ascritical components in life support devices or systems without express written approval of SGS-THOMSON Microelectonics. 1994 SGS-THOMSON Microelectronics - All Rights Reserved SGS-THOMSON Microelectronics GROUP OF COMPANIES Australia - Brazil - France - Germany - Hong Kong - Italy - Japan - Korea - Malaysia - Malta - Morocco - The Netherlands Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A 10/10