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Datasheet File OCR Text: |
NTE6885 thru NTE6888 Integrated Circuit Hex 3-State Buffer/Inverter Description: The NTE6885 thru NTE6888 series of devices combines three features usually found desirable in bus-oriented systems: 1) High impedance logic inputs insure that these devices do not seriously load the bus; 2) Three-state logic configuration allows buffers not being utilized to be effectively removed from the bus; 3) Schottky technology allows high-speed operation. While the NTE6885 to NTE6888 are all buffers, the devices differ in that the NTE6885 (non-inverting) and the NTE6886 (inverting) provide a two-input Enable which controls all six buffers, while the NTE6887 (non-inverting) and the NTE6888 (inverting) provide two Enable inputs; one controlling four buffers and the other controlling the remaining two buffers. These units are well-suited for Address buffers on the M6800 or similar microprocessor application. Features: D High Speed: 8.0ns (Typ) D Three-State Logic Configuration D Single +5V Power Supply Requirement D Compatible with 74LS Logic or 6800 Microprocessor Systems D High Impedance PNP Inputs Assure Minimal Loading of the Bus Absolute Maximum Ratings: (TA = +25C unless otherwise specified for ALL devices) Power Supply Voltage, VCO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.0V Input Voltage, VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5V Operating Ambient Temperature Range, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to +75C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55 to +150C Operating Junction Temperature, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +150C Electrical Characteristics: (0C TA 75C and 4.75V VCC 5.25V unless otherwise specified for ALL devices) Parameter Input Voltage - High Logic State Input Voltage - Low Logic State Input Current - High Logic State Input Current - Low Logic State Input Current - High Impedance State Symbol VIH VIL IIH IIL IIH(E) Test Conditions VCC = 4.75V, TA = +25C VCC = 4.75V, TA = +25C VCC = 5.25V, VIH = 2.4V VCC = 5.25V, VIL = 0.5V, VIL(E) = 0.5V VCC = 5.25V, VIL(I) = 0.5V, VIH(E) = 2V Min 2.0 - - - - Typ - - - - - Max - 0.8 40 -400 -40 Unit V V A A A Electrical Characteristics (Cont'd): (0C TA 75C and 4.75V VCC 5.25V unless otherwise specified for ALL devices) Parameter Output Voltage - High Logic State Output Voltage - Low Logic State Output Current - High Impedance State Output Short-Circuit Current Power Supply Current NTE6885, NTE6887 NTE6886, NTE6888 Input Clamp Voltage Output VCC Clamp Voltage Output GND Clamp Voltage Input Voltage Symbol VOH VOL IOZ IOS ICC Test Conditions VCC = 4.75V, IOH = -5.2mA IOL = 48mA VCC = 5.25V, VOH = 2.4V VCC = 5.25V, VOH = 0.5V VCC = 5.25V, VO = 0, Note 1 VCC = 5.25V - - VIC VOC VOC VI VCC = 4.75V, IIC = -12mA VCC = 0, IOC = 12mA VCC = 0, IOC = -12mA II = 1mA - - - 5.5 65 59 - - - - 98 89 -1.5 1.5 -1.5 - V V V V Min 2.4 - - - -40 Typ - - - - -80 Max - 0.5 40 -40 -115 Unit V V A A mA mA Note 1. Only one output can be shorted at a time. Switching Characteristics: (VCC = 5V, TA = +25C unless otherwise specified) NTE6885, NTE6887 NTE6886, NTE6888 Parameter Propagation Delay Time High to Low State Symbol tPHL Test Conditions CL = 50pF CL = 250pF CL = 375pF CL = 500pF Min 3 - - - 3 - - - - - - - - - - - - - Typ - 16 20 23 - 25 33 42 10 11 14 32 42 60 - - - - Max 12 - - - 13 - - - - - - - - - 10 12 25 25 Min 4 - - - 3 - - - - - - - - - - - - - Typ - 15 18 22 - 22 28 35 10 13 15 28 38 53 - - - - Max 11 - - - 10 - - - - - - - - - 10 16 22 24 Unit ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns Propagation Delay Time Low to High State tPLH CL = 50pF CL = 250pF CL = 375pF CL = 500pF Transition Time High to Low State tTHL CL = 250pF CL = 375pF CL = 500pF Transition Time Low to High State tTLH CL = 250pF CL = 375pF CL = 500pF Propagation Delay Time High State to Third State Propagation Delay Time Low State to Third State Propagation Delay Time Third State to High State Propagation Delay Time Third State to Low State tPHZ(E) tPLZ(E) tPZH(E) tPZL(E) CL = 5pF CL = 5pF CL = 50pF CL = 50pF Pin Connection Diagrams and Truth Tables NTE6885 Enable 1 1 Input A 2 Output A 3 Input B 4 Output B 5 Input C 6 Output C 7 GND 8 16 VCC 15 Enable 2 14 Input F 13 Output F 12 Input E 11 Output E 10 Input D 9 Output D Enable 1 1 Input A 2 Output A 3 Input B 4 Output B 5 Input C 6 Output C 7 GND 8 NTE6886 16 VCC 15 Enable 2 14 Input F 13 Output F 12 Input E 11 Output E 10 Input D 9 Output D Enable 2 Enable 1 L L L H H L H Z X = = = = L L H L H Input L H X X X Output L H Z Z Z Enable 2 Enable 1 L L L H H L H Z X = = = = L L H L H Input L H X X X Output H L Z Z Z Low Logic State High Logic State Third (High Impedance) State Don't Care Low Logic State High Logic State Third (High Impedance) State Don't Care NTE6887 NTE6888 Enable 4 1 Input A 2 Output A 3 Input B 4 Output B 5 Input C 6 Output C 7 GND 8 16 VCC 15 Enable 2 14 Input F 13 Output F 12 Input E 11 Output E 10 Input D 9 Output D Enable 4 1 Input A 2 Output A 3 Input B 4 Output B 5 Input C 6 Output C 7 GND 8 16 VCC 15 Enable 2 14 Input F 13 Output F 12 Input E 11 Output E 10 Input D 9 Output D Enable L L H L H Z X = = = = Input L H X Output L H Z Enable L L H L H Z X = = = = Input L H X Output H L Z Low Logic State High Logic State Third (High Impedance) State Don't Care Low Logic State High Logic State Third (High Impedance) State Don't Care 16 9 1 8 .870 (22.0) Max .200 (5.08) Max .260 (6.6) Max .100 (2.54) .700 (17.78) .099 (2.5) Min |
Price & Availability of NTE6888
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