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Part: 74VCXH16240MTD
Category:
Description: Low Voltage 16-Bit Inverting Buffer/line Driver With Bushold
Company: Fairchild Semiconductor
Datasheet: Download 74VCXH16240MTD datasheet File size : 110 kB
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Datasheet text preview:
74VCXH16240 Low Voltage 16-Bit Inverting Buffer/Line Driver
December 1999 Revised October 2002
74VCXH16240 Low Voltage 16-Bit Inverting Buffer/Line Driver with Bushold
General Description
The VCXH16240 contains sixteen inverting buffers with 3-STATE outputs to be employed as a memory and address driver, clock driver, or bus oriented transmitter/ receiver. The device is nibble (4-bit) controlled. Each nibble has separate 3-STATE control inputs which can be shorted together for full 16-bit operation. The VCXH16240 data inputs include active bushold circuitry, eliminating the need for external pull-up resistors to hold unused or floating inputs at a valid logic level. The 74VCXH16240 is designed for low voltage (1.2V to 3.6V) VCC applications with output capability up to 3.6V. The 74VCXH16240 is fabricated with an advanced CMOS technology to achieve high speed operation while maintaining low CMOS power dissipation.
Features
s 1.2V to 3.6V VCC supply operation s 3.6V tolerant control inputs and outputs s Bushold on data inputs eliminates the need for external pull-up/pull-down resistors s tPD 2.5 ns max for 3.0V to 3.6V VCC s Static Drive (IOH/IOL)
±24 mA @ 3.0V VCC
s Uses patented noise/EMI reduction circuitry s Latch-up performance exceeds 300 mA s ESD performance: Human body model > 2000V Machine model > 200V
Ordering Code:
Order Number 74VCXH16240MTD Package Number MTD48 Package Descriptions 48-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter "X" to the ordering code.
Logic Symbol
Pin Descriptions
Pin Names OEn I0I15 O0O15 Description Output Enable Input (Active LOW) Bushold Inputs Outputs
© 2002 Fairchild Semiconductor Corporation
DS500232
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74VCXH16240
Connection Diagram
Truth Tables
Inputs OE1 L L H Inputs OE2 L L H Inputs OE3 L L H Inputs OE4 L L H I12I15 L H X I8I11 L H X I4I7 L H X I0I3 L H X Outputs O0O3 H L Z Outputs O4O7 H L Z Outputs O8O11 H L Z Outputs O12O15 H L Z
H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial (HIGH or LOW, inputs may not float) Z = High Impedance
Functional Description
The 74VCXH16240 contains sixteen inverting buffers with 3-STATE outputs. The device is nibble (4 bits) controlled with each nibble functioning identically, but independent of each other. The control pins may be shorted together to obtain full 16-bit operation.The 3-STATE outputs are controlled by an Output Enable (OEn) input. When OEn is LOW, the outputs are in the 2-state mode. When OEn is HIGH, the standard outputs are in the high impedance mode but this does not interfere with entering new data into the inputs.
Logic Diagram
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74VCXH16240
Absolute Maximum Ratings(Note 1)
Supply Voltage (VCC) DC Input Voltage (VI) Output Voltage (VO) Outputs 3-STATED Outputs Active (Note 2) DC Input Diode Current (IIK) VI VCC DC Output Source/Sink Current (IOH/IOL) DC VCC or GND Current per Supply Pin (ICC or GND) Storage Temperature Range (TSTG)
-0.5V to +4.6V -0.5V to 4.6V -0.5V to +4.6V -0.5V to VCC +0.5V -50 mA -50 mA +50 mA ±50 mA ±100 mA -65°C to +150°C
Recommended Operating Conditions (Note 3)
Power Supply Operating Input Voltage Output Voltage (VO) Output in Active States Output in 3-STATE Output Current in IOH/IOL VCC = 3.0V to 3.6V VCC = 2.3V to 2.7V VCC = 1.65V to 2.3V VCC = 1.4V to 1.6V VCC = 1.2V Free Air Operating Temperature (TA) Minimum Input Edge Rate (t/V) VIN = 0.8V to 2.0V, VCC = 3.0V 10 ns/V
Note 1: The Absolute Maximum Ratings are those values beyond which the safety of the device cannot be guaranteed. The device should not be operated at these limits. The parametric values defined in the Electrical Characteristics tables are not guaranteed at the Absolute Maximum Ratings. The "Recommended Operating Conditions" table will define the conditions for actual device operation. Note 2: IO Absolute Maximum Rating must be observed. Note 3: Floating or unused control inputs must be held HIGH or LOW.
1.2V to 3.6V
-0.3V to +3.6V
0V to VCC 0.0V to 3.6V
±24 mA ±18 mA ±6 mA ±2 mA ±100 µA -40°C to +85°C
DC Electrical Characteristics
Symbol VIH Parameter HIGH Level Input Voltage Conditions VCC (V) 2.7 - 3.6 2.3 - 2.7 1.65 - 2.3 1.4 - 1.6 1.2 VIL LOW Level Input Voltage 2.7 - 3.6 2.3 - 2.7 1.65 - 2.3 1.4 - 1.6 1.2 VOH HIGH Level Output Voltage IOH = -100 µA IOH = -12 mA IOH = -18 mA IOH = -24 mA IOH = -100 µA IOH = -6 mA IOH = -12 mA IOH = -18 mA IOH = -100 µA IOH = -6 mA IOH = -100 µA IOH = -2 mA IOH = -100 µA 2.7 - 3.6 2.7 3.0 3.0 2.3 - 2.7 2.3 2.3 2.3 1.65 - 2.3 1.65 1.4 - 1.6 1.4 1.2 VCC - 0.2 2.2 2.4 2.2 VCC - 0.2 2.0 1.8 1.7 VCC - 0.2 1.25 VCC - 0.2 1.05 VCC - 0.2 V 2.0 1.6 0.65 x VCC 0.65 x VCC 0.65 x VCC 0.8 0.7 0 . 3 5 x V CC 0 . 3 5 x V CC 0 .05 x V CC V V Min M ax Units
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74VCXH16240
DC Electrical Characteristics
Symbol VOL Parameter LOW Level Output Voltage
(Continued)
VCC (V) IOL = 100 µA IOL = 12 mA IOL = 18 mA IOL = 24 mA IOL = 100 µA IOL = 12 mA IOL = 18 mA IOL = 100 µA IOL = 6 mA IOL = 100 µA IOL = 2 mA IOL = 100 µA 2.7 - 3.6 2.7 3.0 3.0 2.3 - 2.7 2.3 2.3 1.65 - 2.3 1.65 1.4 - 1.6 1.4 1.2 1.2 - 3.6 1.2 - 3.6 3.0 3.0 2.3 2.3 1.65 1.65 3.6 3.6 2.7 2.7 1.95 1.95 2.7 - 3.6 0 1.2 - 3.6 1.2 - 3.6 2.7 - 3.6 75 - 75 45 - 45 25 - 25 450 -450 300 -300 200 -200 ±10 10 20 ±20 750 µA µA µA µA µA µA µA 0.2 0 .4 0 .4 0.55 0.2 0 .4 0 .6 0.2 0.3 0.2 0.35 0.05 ±5.0 ±5.0 µA V
Conditions
Min
M ax
Units
II II(HOLD)
Input Leakage Current Bushold Input Minimum Drive Hold Current
Control Pins Data Pins
0 VI 3.6V VI = VCC or GND VIN = 0.8V VIN = 2.0V VIN = 0.7V VIN = 1.6V VIN = 0.57V VIN = 0.07V
II(OD)
Bushold Input Over-Drive Current to Change State
(Note 4) (Note 5) (Note 4) (Note 5) (Note 4) (Note 5)
IOZ IOFF ICC ICC
3-STATE Output Leakage Power-OFF Leakage Current Quiescent Supply Current Increase in ICC per Input
0 VO 3.6V VI = VIH or VIL 0 (VO) 3.6V VI = VCC or GND VCC (VO) 3.6V (Note 6) VIH = VCC -0.6V
Note 4: An external driver must source at least the specified current to switch from LOW-to-HIGH. Note 5: An external driver must source at least the specified current to switch from HIGH-to-LOW. Note 6: Outputs disabled or 3-STATE only.
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74VCXH16240
AC Electrical Characteristics (Note 7)
Symbol tPHL, tPLH CL = 15 pF, RL = 2k tPZL, tPZH CL = 15 pF, RL = 2k tPLZ, tPHZ CL = 15 pF, RL = 2k tOSHL tOSLH Output to Output Skew (Note 8) CL = 15 pF, RL = 2k
Note 7: For CL = 50PF, add approximately 300 ps to the AC maximum specification. Note 8: Skew is defined as the absolute value of the difference between the actual propagation delay for any two separate outputs of the same device. The specification applies to any outputs switching in the same direction, either HIGH-to-LOW (tOSHL) or LOW-to-HIGH (tOSLH).
Parameter Propagation Delay
Conditions CL = 30 pF, RL = 500
VCC (V) 3.3 ± 0.3 2.5 ± 0.2 1.8 ± 0.15 1.5 ± 0.1 1.2 3.3 ± 0.3 2.5 ± 0.2 1.8 ± 0.15 1.5 ± 0.1 1.2 3.3 ± 0.3 2.5 ± 0.2 1.8 ± 0.15 1.5 ± 0.1 1.2 3.3 ± 0.3 2.5 ± 0.2 1.8 ± 0.15 1.5 ± 0.1 1.2
TA = -40°C to +85°C Min 0.8 1.0 1.5 1 .0 1 .5 0.8 1.0 1.5 1 .0 1 .5 0.8 1.0 1.5 1 .0 Max 2.5 3.0 6.0 12.0 30 3.5 4.1 8.2 16.4 41 3.5 3.8 6.8 13.6 34.2 0.5 0.5 0.75 1.5 1.5
Units
Figure Number Figures 1, 2
ns Figures 5, 6 Figures 1, 3, 4 ns Figures 5, 7, 8 Figures 1, 3, 4 ns Figures 5, 7, 8
Output Enable Time
CL = 30 pF, RL = 500
Output Disable Time
CL = 30 pF, RL = 500
CL = 30 pF, RL = 500
ns
Dynamic Switching Characteristics
Symbol VOLP Parameter Quiet Output Dynamic Peak VOL Conditions CL = 30 pF, VIH = VCC, VIL = 0V V CC (V) 1.8 2.5 3.3 VOLV Quiet Output Dynamic Valley VOL CL = 30 pF, VIH = VCC, VIL = 0V 1.8 2.5 3.3 VOHV Quiet Output Dynamic Valley VOH CL = 30 pF, VIH = VCC, VIL = 0V 1.8 2.5 3.3 TA = +25°C Typical 0.25 0.6 0.8 -0.25 -0.6 -0.8 1.5 1.9 2.2 V V V Units
Capacitance
Symbol CIN COUT CPD Input Capacitance Output Capacitance Power Dissipation Capacitance Parameter Conditions VCC = 1.8, 2.5V or 3.3V, VI = 0V or VCC VI = 0V or VCC, VCC = 1.8V, 2.5V or 3.3V VI = 0V or VCC, f = 10 MHz, VCC = 1.8V, 2.5V or 3.3V TA = +25°C Typical 6 7 20 Units pF pF pF
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