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Part: 74ALVCH162240T
Category:
Description: 74ALVCH162240 - Low Voltage 16-Bit Inverting Buffer/line Driver With Bushold And 26 Ohm Series Resistors in Outputs
Company: Fairchild Semiconductor
Datasheet: Download 74ALVCH162240T datasheet File size : 67 kB
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Datasheet text preview:
74ALVCH162240 Low Voltage 16-Bit Inverting Buffer/Line Driver
November 2001 Revised November 2001
74ALVCH162240 Low Voltage 16-Bit Inverting Buffer/Line Driver with Bushold and 26 Series Resistors in Outputs
General Description
The ALVCH162240 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 ALVCH162240 data inputs include active bushold circuitry, eliminating the need for external pull-up resistors to hold unused or floating data inputs at a valid logic level. The 74ALVCH162240 is also designed with 26 series resistors in the outputs. This design reduces line noise in applications such as memory address drivers, clock drivers, and bus transceivers/transmitters. The 74ALVCH162240 is designed for low voltage (1.65V to 3.6V) VCC applications with output capability up to 3.6V. The 74ALVCH162240 is fabricated with an advanced CMOS technology to achieve high speed operation while maintaining low CMOS power dissipation.
Features
s 1.65V to 3.6V VCC supply operation s 3.6V tolerant control inputs and outputs s Bushold on data inputs eliminating the need for external pull-up/pull-down resistors s 26 series resistors in outputs s tPD 3.8 ns max for 3.0V to 3.6V VCC 4.3 ns max for 2.3V to 2.7V VCC 7.6 ns max for 1.65V to 1.95V VCC s Uses patented noise/EMI reduction circuitry s Latchup conforms to JEDEC JED78 s ESD performance: Human body model > 2000V Machine model > 200V
Ordering Code:
Order Number 74ALVCH162240T 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
© 2001 Fairchild Semiconductor Corporation
DS500700
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74ALVCH162240
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 74ALVCH162240 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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74ALVCH162240
Absolute Maximum Ratings(Note 1)
Supply Voltage (VCC) DC Input Voltage (VI) Output Voltage (VO) (Note 2) DC Input Diode Current (IIK) VI < 0V DC Output Diode Current (IOK) VO < 0V 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 VCC +0.5V -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) 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.
1.65V to 3.6V 0V to VCC 0V to VCC
-40°C to +85°C
DC Electrical Characteristics
Symbol VIH Parameter HIGH Level Input Voltage Conditions VCC (V) 1.65 - 1.95 2.3 - 2.7 2.7 - 3.6 VIL LOW Level Input Voltage 1.65 - 1.95 2.3 - 2.7 2.7 - 3.6 VOH HIGH Level Output Voltage IOH = -100 µA IOH = -2 mA IOH = -4 mA IOH = -6 mA IOH = -8 mA IOH = -12 mA VOL LOW Level Output Voltage IOL = 100 µA IOL = 2 mA IOL = 4 mA IOL = 6 mA IOL = 8 mA IOL = 12 mA II II(HOLD) Input Leakage Current Bushold Input Minimum Drive Hold Current 0 VI 3.6V VIN = 0.58V VIN = 1.07V VIN = 0.7V VIN = 1.7V VIN = 0.8V VIN = 2.0V 0 < VO 3.6V IOZ ICC ICC 3-STATE Output Leakage Quiescent Supply Current Increase in ICC per Input 0 VO 3.6V VI = V CC or GND, IO = 0 VIH = VCC - 0.6V 1.65 - 3.6 1.65 2.3 2.3 3 2.7 3.0 1.65 - 3.6 1.65 2.3 2.3 3 2.7 3 3.6 1.65 1.65 2.3 2.3 3.0 3.0 3.6 3.6 3.6 3 - 3.6 25 - 25 45 - 45 75 - 75 ±500 ±10 40 750 µA µA µA µA VCC - 0.2 1.2 1.9 1.7 2 .4 2 2 0.2 0.45 0 .4 0.55 0 .5 5 0 .6 0 .8 ±5.0 µA V V Min 0.65 x VCC 1 .7 2 .0 0.35 x VCC 0 .7 0 .8 V V M ax Units
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74ALVCH162240
AC Electrical Characteristics
TA = -40°C to +85°C, RL = 500 Symbol Parameter CL = 50 pF VCC = 3.3V ± 0.3V Min tPHL, tPLH tPZL, tPZH tPLZ, tPHZ Propagation Delay Output Enable Time Output Disable Time 1.3 1.3 1.3 M ax 3.8 4 .3 4 .1 VCC = 2.7V Min 1 .5 1.5 1.5 Max 4.3 5.6 4.5 CL = 30 pF VCC = 2.5V ± 0.2V Min 1 .0 1.0 1.0 M ax 3.8 5 .1 4 .0 VCC = 1.8V ± 0.15V Min 1.5 1.5 1.5 M ax 7.6 9 .8 7 .2 ns ns ns Units
Capacitance
Symbol CIN COUT CPD Input Capacitance Output Capacitance Power Dissipation Capacitance Parameter Conditions VI = 0V or VCC VI = 0V or VCC Outputs Enabled f = 10 MHz, CL = 50 pF TA = +25°C VCC 3.3 3.3 3.3 2.5 Typical 6 7 20 20 Units pF pF pF
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74ALVCH162240
AC Loading and Waveforms
TABLE 1. Values for Figure 1 TEST tPLH, tPHL tPZL, tPLZ tPZH, tPHZ SWITCH Open VL GND
FIGURE 1. AC Test Circuit TABLE 2. Variable Matrix (Input Characteristics: f = 1MHz; tr = tf = 2ns; Z0 = 50 Symbol Vmi Vmo VX VY VL VCC 3.3V ± 0.3V 1.5V 1.5V VOL + 0.3V VOH - 0.3V 6V 2.7V 1.5V 1.5V VOL + 0.3V VOH - 0.3V 6V 2.5V ± 0.2V VCC/2 VCC/2 VOL + 0.15V VOH - 0.15V VCC*2 1.8V ± 0.15V VCC/2 VCC/2 VOL + 0.15V VOH - 0.15V VCC*2
FIGURE 2. Waveform for Inverting and Non-Inverting Functions
FIGURE 3. 3-STATE Output High Enable and Disable Times for Low Voltage Logic
FIGURE 4. 3-STATE Output Low Enable and Disable Times for Low Voltage Logic
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