DP8216/DP8216M/DP8226/DP8226M 4-Bit Bidirectional Bus Transceivers General Description The DP8216/DP8216M and DP8226/DP8226M are 4-bit bidirectional bus drivers to use in bus oriented applications. The non-inverting DP8216/DP8216M and inverting DP8226/DP8226M drivers are provided for flexibility in system design. Each buffered line of the four-bit drivers consists of two separate buffers that are TRI-STATEE to achieve direct bus interface and bidirectional capability. On one side of the driver the output of one buffer and the input of another are tied together (DB); this side is used to interface to the system side components such as memories, I/O, etc., because its interface is TTL compatible and it has high driver (50 mA). On the other side of the driver the inputs and outputs are separated to provide maximum flexibility. Of course, they can be tied together so that the driver can be used to buffer a true bidirectional bus. The DO outputs on this side of the driver have a special high voltage output drive capability so that direct interface to the 8080 type CPUs is achieved with an adequate amount of noise immunity. The CS input is a device enable. When it is ``high'' the output drivers are all forced to their high-impedance state. When it is a ``low'' the device is enabled and the direction of the data flow is determined by the DIEN input. The DIEN input controls the direction of data flow, which is accomplished by forcing one of the pair of buffers into its high-impedance state and allowing the other to transmit its data. A simple two-gate circuit is used for this function. Features Y Y Y Y Y Y Y Y Y Y Data bus buffer driver to 8080 type CPUs Low input load current0.25 mA maximum High output drive capability for driving system data bus50 mA at 0.5V Power up-down protection DP8216/DP8216M have non-inverting outputs DP8226/DP8226M have inverting outputs Output high voltage compatible with direct interface to MOS TRI-STATE outputs Advanced Schottky processing Available in military and commercial temperature Logic Diagrams DP8216/DP8216M DP8226/DP8226M TL/F/8753 - 1 TL/F/8753 - 2 TRI-STATEE is a registered trademark of National Semiconductor Corp. C1995 National Semiconductor Corporation TL/F/8753 RRD-B30M105/Printed in U. S. A. DP8216/DP8216M/DP8226/DP8226M 4-Bit Bidirectional Bus Transceivers June 1990 Absolute Maximum Ratings (Note 1) Min Max Units If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/Distributors for availability and specifications. Min Max Units b 0.5 a 7.0 b 1.0 All Input Voltages Output Currents Maximum Power Dissipation* at 25 C Cavity Package Molded Package a 5.5 125 V V mA 1509 1476 mW mW All Output and Supply Voltages Storage Temperature b 65 a 150 Lead Temperature (soldering, 4 seconds) 260 C C Operating Conditions Supply Voltage, VCC DP8216M, DP8226M DP8216, DP8226 Temperature, TA DP8216M, DP8226M DP8216, DP8226 Note: *Derate cavity package 10.1 mW/ C above 25 C; derate molded package 11.8 mW/ C above 25 C. Min Max Units 4.5 4.75 5.5 5.25 V V b 55 a 125 a 70 C C 0 Electrical Characteristics DP8216, DP8226 VCC e 5V g 5% (Notes 2, 3, and 4) Limits Symbol Parameter Conditions Units Min Typ Max DRIVERS VIL Input Low Voltage VIH Input High Voltage 0.95 IF Input Load Current VF e 0.45V b 0.25 mA IR Input Leakage Current VR e 5.25V 10 mA VC Input Clamp Voltage IC e b5 mA b 1.2 V VOL1 Output Low Voltage IOL e 25 mA 0.3 0.45 V VOL2 Output Low Voltage DP8216 IOL e 55 mA DP8226 IOL e 50 mA 0.5 0.6 V VOH Output High Voltage IOH e b10 mA ISC Output Short Circuit Current VCC e 5V b 120 mA l IO l Output Leakage Current TRI-STATE VO e 0.45V/5.5V 100 mA 2 V V b 0.03 2.4 3.0 b 30 b 75 V RECEIVERS VIL Input Low Voltage VIH Input High Voltage 0.95 IF Input Load Current VF e 0.45V VC Input Clamp Voltage IC e b5 mA VOL Output Low Voltage IOL e 15 mA VOH1 Output High Voltage IOH e b1 mA 3.65 4.0 ISC Output Short Circuit Current VCC e 5V b 15 b 35 l IO l Output Leakage Current TRI-STATE VO e 0.45V/5.5V 2 V V b 0.08 0.3 b 0.25 mA b 1.2 V 0.45 V b 65 mA 20 mA V CONTROL INPUTS (CS, DIEN) VIL Input Low Voltage VIH Input High Voltage 0.95 IF Input Load Current VF e 0.45V IR Input Leakage Current VR e 5.25V ICC Power Supply Current DP8216 DP8226 2 b 0.15 95 85 2 V V b 0.5 mA 20 mA 130 120 mA mA Electrical Characteristics (Continued) DP8216M, DP8226M VCC e 5V g 10% (Notes 2, 3 and 4) Limits Symbol Parameter Conditions Units Min Typ Max DRIVERS VIL Input Low Voltage DP8216M DP8226M VIH Input High Voltage IF Input Load Current VF e 0.45V IR Input Leakage Current VR e 5.5V VC Input Clamp Voltage IC e b5 mA VOL1 Output Low Voltage IOL e 25 mA VOL2 Output Low Voltage IOL e 45 mA VOH Output High Voltage IOH e b5 mA ISC Output Short Circuit Current VCC e 5.0V l IO l Output Leakage Current TRI-STATE VO e 0.45V/5.5V 0.95 0.90 V V b 0.25 mA 2 V b 0.08 40 mA b 1.2 V 0.3 0.45 V 0.5 0.6 V b 120 mA 100 mA 0.95 0.9 V V b 0.25 mA b 1.2 V 0.45 V 2.4 3.0 b 30 b 75 V RECEIVERS VIL Input Low Voltage DP8216M DP8226M VIH Input High Voltage IF Input Load Current 2 VC Input Clamp Voltage IC e b5 mA VOL Output Low Voltage IOL e 15 mA VOH1 Output High Voltage IOH e b0.5 mA 3.4 VOH2 Output High Voltage IOH e b2 mA 2.4 ISC Output Short Circuit Current VCC e 5.0V l IO l Output Leakage Current TRI-STATE VO e 0.45V/5.5V VF e 0.45V V b 0.08 0.3 b 15 3.8 V V b 35 b 65 mA 20 mA 0.95 0.9 V V b 0.5 mA 80 mA 130 120 mA mA CONTROL INPUTS (CS, DIEN) VIL Input Low Voltage DP8216M DP8226M VIH Input High Voltage IF Input Load Current VF e 0.45V 2 IR Input Leakage Current VR e 5.5V ICC Power Supply Current DP8216M DP8226M V b 0.15 95 85 3 Switching Characteristics (Notes 2, 3 and 4) Limits Symbol Parameter Conditions Units Min Typ Max 15 25 ns 19 16 33 25 ns ns 42 36 75 62 ns ns 16 16 40 38 ns ns 15 25 ns 20 16 30 25 ns ns 45 35 65 54 ns ns 20 35 ns DP8216M, DP8226M, VCC e 5V g 10% tPD1 Input to Output Delay, DO Outputs CL e 30 pF, R1 e 300X, R2 e 600X tPD2 Input to Output Delay, DB Outputs DP8216M DP8226M CL e 300 pF, R1 e 90X, R2 e 180X Output Enable Time DP8216M DP8226M DO Outputs: CL e 30 pF, R1 e 300X R2 e 600X DB Outputs: CL e 300 pF, R1 e 90X R2 e 180X Output Disable Time DP8216M DP8226M DO Outputs: CL e 5 pF, R1 e 300X R2 e 600X DB Outputs: CL e 5 pF, R1 e 90X R2 e 180X tE tD DP8216, DP8226 VCC e 5.0V g 5% tPD1 Input to Output Delay, DO Outputs CL e 30 pF, R1 e 300X, R2 e 600X tPD2 Input to Output Delay, DB Outputs DP8216 DP8226 CL e 300 pF, R1 e 90X, R2 e 180X Output Enable Time DP8216 DP8226 DO Outputs: CL e 30 pF, R1 e 300X R2 e 600X DB Outputs: CL e 300 pF, R1 e 90X R2 e 180X Output Disable Time DO Outputs: CL e 5 pF, R1 e 300X R2 e 600X DB Outputs: CL e 5 pF, R1 e 90X R2 e 180X tE tD Note 1: ``Absolute Maximum Ratings'' are those values beyond which the safety of the device cannot be guaranteed. They are not meant to imply that the devices should be operated at these limits. The tables of ``Electrical Characteristics'' provide conditions for actual device operation. Note 2: Unless otherwise specified, min/max limits apply across the b 55 C to a 125 C temperature range for the DP8216M and DP8226M and across the 0 C to a 70 C temperature range for the DP8216 and DP8226. All typical values are given for VCC e 5V and TA e 25 C. Note 3: All currents into device pins are positive; all currents out of device pins are negative. All voltages are referenced to ground unless otherwise specified. Note 4: Only one output at a time should be shorted. 4 Test Conditions Test Load Circuit Input rise and fall times of 5.0 ns between 1.0V and 2.0V. Output loading is 5.0 mA and 10 pF. Speed measurements are made at 1.5V levels. TL/F/8753 - 4 Switching Time Waveforms TL/F/8753 - 5 Connection Diagram Capacitance TA e 25 C Symbol Limit Parameter Dual-In-Line Package Min Unit Typ Min CIN Input Capacitance 4 6 pF COUT Output Capacitance DO Outputs DO Outputs 6 13 10 18 pF pF Note: This parameter is periodically sampled and is not 100% tested. Condition of measurement is f e 1 MHz, VBIAS e 2.5V, VCC e 5.0V, and TA e 25 C. TL/F/8753 - 3 Order Number DP8216J, DP8216N, DP8226J, DP8226N, DP8216MJ or DP8226MJ See NS Package Number J16A or N16A 5 DP8216/DP8216M/DP8226/DP8226M 4-Bit Bidirectional Bus Transceivers Physical Dimensions inches (millimeters) Ceramic Dual-In-Line Package (J) Order Number DP8216J, DP8226J, DP8216MJ or DP8226MJ NS Package Number J16A Molded Dual-In-Line Package (N) Order Number DP8216N, or DP8226N NS Package N16A LIFE SUPPORT POLICY NATIONAL'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and whose failure to perform, when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user. 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