View 74LCXH1624405_1202545.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

74LCXH16244 Low Voltage 16-Bit Buffer/Line Driver with Bushold
September 2000 Revised June 2005
74LCXH16244 Low Voltage 16-Bit Buffer/Line Driver with Bushold
General Description
The LCXH16244 contains sixteen non-inverting buffers with 3-STATE outputs designed to be employed as a memory and address driver, clock driver, or bus oriented transmitter/receiver. The device is nibble controlled. Each nibble has separate 3-STATE control inputs which can be shorted together for full 16-bit operation. The LCXH16244 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 LCXH16244 is designed for low voltage (2.5V or 3.3V) VCC applications with capability of interfacing to a 5V signal environment. The LCXH16244 is fabricated with an advanced CMOS technology to achieve high speed operation while maintaining CMOS low power dissipation.
Features
s 5V tolerant control inputs and outputs s 2.3V-3.6V VCC specifications provided s 4.5 ns tPD max (VCC
3.0V), 20 PA ICC max
s Bushold on inputs eliminates the need for external pull-up/pull-down resistors s Power down high impedance inputs and outputs s r24 mA output drive (VCC
3.0V)
s Implements patented noise/EMI reduction circuitry s Latch-up performance exceeds 500 mA s ESD performance:
Human body model ! 2000V Machine model ! 200V
s Also packaged in plastic Fine-Pitch Ball Grid Array (FBGA)
Ordering Code:
Order Number 74LCXH16244G (Note 1)(Note 2) 74LCXH16244MEA (Note 2) 74LCXH16244MTD (Note 2) Package Number BGA54A MS48A MTD48 Package Description 54-Ball Fine-Pitch Ball Grid Array (FBGA), JEDEC MO-205, 5.5mm Wide 48-Lead Small Shrink Outline Package (SSOP), JEDEC MO-118, 0.300" Wide 48-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide
Note 1: Ordering code "G" indicates Trays. Note 2: Devices also available in Tape and Reel. Specify by appending the suffix letter "X" to the ordering code.
Logic Symbol
(c) 2005 Fairchild Semiconductor Corporation
DS500248
www.fairchildsemi.com
74LCXH16244
Connection Diagrams
Pin Assignment for SSOP and TSSOP
Pin Descriptions
Pin Names OEn I0-I15 O0-O15 NC Description Output Enable Input (Active LOW) Inputs Outputs No Connect
FBGA Pin Assignments
1 A B C D E F G H J O0 O2 O4 O6 O8 O10 O12 O14 O15 2 NC O1 O3 O5 O7 O9 O11 O13 NC 3 OE1 NC VCC GND GND GND VCC NC OE4 4 OE2 NC VCC GND GND GND VCC NC OE3 5 NC I1 I3 I5 I7 I9 I11 I13 NC 6 I0 I2 I4 I6 I8 I10 I12 I14 I15
Truth Tables
Inputs OE1 Pin Assignment for FBGA L L H Inputs OE2 L L H Inputs (Top Thru View) OE3 L L H Inputs OE4 L L H
H HIGH Voltage Level L LOW Voltage Level
Outputs I0-I3 L H X O0-O3 L H Z Outputs I4-I7 L H X O4-O7 L H Z Outputs I8-I11 L H X O8-O11 L H Z Outputs I12-I15 L H X
X Z
O12-O15 L H Z
Immaterial High Impedance
www.fairchildsemi.com
2
74LCXH16244
Functional Description
The LCXH16244 contains sixteen non-inverting buffers with 3-STATE standard outputs. The device is nibble (4 bits) controlled with each nibble functioning identically, but independent of the other. The control pins can be shorted together to obtain full 16-bit operation. The 3-STATE outputs are controlled by an Output Enable (OEn) input for each nibble. When OEn is LOW, the outputs are in 2-state mode. When OEn is HIGH, the outputs are in the high impedance mode, but this does not interfere with entering new data into the inputs.
Logic Diagram
3
www.fairchildsemi.com
74LCXH16244
Absolute Maximum Ratings(Note 3)
Symbol VCC VI VO IIK IOK IO ICC IGND TSTG Parameter Supply Voltage DC Input Voltage DC Output Voltage DC Input Diode Current DC Output Diode Current DC Output Source/Sink Current DC Supply Current per Supply Pin DC Ground Current per Ground Pin Storage Temperature OE I0 - I15 Value Conditions Units V V Output in 3-STATE Output in HIGH or LOW State (Note 4) VI GND VO GND VO ! VCC V mA mA mA mA mA
0.5 to 7.0 0.5 to 7.0 0.5 to VCC 0.5 0.5 to 7.0 0.5 to VCC 0.5 50 50 50 r50 r100 r100 65 to 150
qC
Recommended Operating Conditions (Note 5)
Symbol VCC VI VO IOH/IOL Supply Voltage Input Voltage Output Voltage Output Current HIGH or LOW State 3-STATE VCC VCC VCC TA Free-Air Operating Temperature Input Edge Rate, VIN 0.8V-2.0V, VCC 3.0V 3.0V 3.6V 2.7V 3.0V 2.3V 2.7V Parameter Operating Data Retention Min 2.0 1.5 0 0 0 Max 3.6 3.6 VCC VCC 5.5 Units V V V
r24 r12 r8 40
0 85 10
mA
qC
ns/V
't/'V
Note 3: 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 4: IO Absolute Maximum Rating must be observed. Note 5: Floating or unused control inputs must be held HIGH or LOW.
DC Electrical Characteristics
Symbol VIH VIL VOH Parameter HIGH Level Input Voltage LOW Level Input Voltage HIGH Level Output Voltage IOH IOH IOH IOH IOH VOL LOW Level Output Voltage IOL IOL IOL IOL IOL II Input Leakage Current Data Control VI Conditions VCC (V) 2.3 2.7 2.7 3.6 2.3 2.7 2.7 3.6 TA
40qC to 85qC
Max
Min 1.7 2.0
Units V
0.7 0.8 VCC 0.2 1.8 2.2 2.4 2.2 0.2 0.6 0.4 0.4 0.55
V
100 PA 8 mA 12 mA 18 mA 24 mA
100 PA 8 mA 12 mA 16 mA 24 mA VCC or GND
2.3 3.6 2.3 2.7 3.0 3.0 2.3 3.6 2.3 2.7 3.0 3.0 2.3 3.6 2.3 3.6
V
V
r5.0 r5.0
0 d VI d 5.5
PA
www.fairchildsemi.com
4
74LCXH16244
DC Electrical Characteristics
Symbol II(HOLD) Parameter Bushold Input Minimum Drive Hold Current
(Continued)
VCC (V) VIN VIN VIN VIN 0.7V 1.7V 0.8V 2.0V 2.3 3.0 2.7 3.6 2.3 3.6 0 2.3 3.6 2.3 3.6 TA
Conditions
40qC to 85qC
Max 45
Units
Min
45
75
PA
75
300
II(OD)
Bushold Input Over-Drive Current to Change State
(Note 6) (Note 7) (Note 6) (Note 7)
300
450
PA
450 r5.0
10 20 500
IOZ IOFF ICC
3-STATE Output Leakage Power-Off Leakage Current Quiescent Supply Current Increase in ICC per Input
0 d VO d 5.5V VI VO VI VIH VIH or VIL 5.5V VCC or GND VCC 0.6V
PA PA PA PA
'ICC
Note 6: An external driver must source at least the specified current to switch from LOW-to-HIGH. Note 7: An external driver must sink at least the specified current to switch from HIGH-to-LOW.
AC Electrical Characteristics
TA Symbol Parameter VCC CL Min tPHL tPLH tPZL tPZH tPLZ tPHZ tOSHL tOSLH Output to Output Skew (Note 8) Output Disable Time Propagation Delay Data to Output Output Enable Time 1.0 1.0 1.0 1.0 1.0 1.0 3.3V r 0.3V 50 pF Max 4.5 4.5 5.5 5.5 5.4 5.4 1.0 1.0
40qC to 85qC, RL
VCC CL Min 1.0 1.0 1.0 1.0 1.0 1.0 2.7V 50 pF Max 5.2 5.2 6.3 6.3 5.7 5.7
500 : VCC CL Min 1.0 1.0 1.0 1.0 1.0 1.0 2.5V r 0.2V 30 pF Max 5.4 5.4 7.2 7.2 6.5 6.5 ns ns ns ns Units
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 guaranteed by design.
Dynamic Switching Characteristics
Symbol VOLP VOLV Parameter Quiet Output Dynamic Peak VOL Quiet Output Dynamic Valley VOL CL CL CL CL 50 pF, VIH 30 pF, VIH 50 pF, VIH 30 pF, VIH Conditions 3.3V, VIL 2.5V, VIL 3.3V, VIL 2.5V, VIL 0V 0V 0V 0V VCC (V) 3.3 2.5 3.3 2.5 TA 25qC Units Typical 0.8 0.6 V V
0.8 0.6
Capacitance
Symbol CIN COUT CPD Input Capacitance Output Capacitance Power Dissipation Capacitance Parameter VCC VCC VCC Open, VI 3.3V, VI 3.3V, VI Conditions 0V or VCC 0V or VCC 0V or VCC, f 10 MHz Typical 7 8 20 Units pF pF pF
5
www.fairchildsemi.com
74LCXH16244
AC LOADING and WAVEFORMS Generic for LCX Family
FIGURE 1. AC Test Circuit (CL includes probe and jig capacitance) VI 6V for VCC 3.3V, 2.7V 2.5V VCC * 2 for VCC CL 50 pF 30 pF
Waveform for Inverting and Non-Inverting Functions
3-STATE Output High Enable and Disable Times for Logic
Propagation Delay. Pulse Width and trec Waveforms
Setup Time, Hold Time and Recovery Time for Logic
3-STATE Output Low Enable and Disable Times for Logic FIGURE 2. Waveforms (Input Characteristics; f =1MHz, tr = tf = 3ns) Symbol Vmi Vmo Vx Vy VCC 3.3V r 0.3V 1.5V 1.5V VOL 0.3V VOH 0.3V 1.5V 1.5V VOL 0.3V VOH 0.3V 2.7V
trise and tfall
2.5V r 0.2V VCC/2 VCC/2 VOL 0.15V VOH 0.15V
www.fairchildsemi.com
6
74LCXH16244
Schematic Diagram Generic for LCXH Family
7
www.fairchildsemi.com
74LCXH16244
Physical Dimensions inches (millimeters) unless otherwise noted
54-Ball Fine-Pitch Ball Grid Array (FBGA), JEDEC MO-205, 5.5mm Wide Package Number BGA54A
www.fairchildsemi.com
8
74LCXH16244
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
48-Lead Small Shrink Outline Package (SSOP), JEDEC MO-118, 0.300" Wide Package Number MS48A
9
www.fairchildsemi.com
74LCXH16244 Low Voltage 16-Bit Buffer/Line Driver with Bushold
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
48-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide Package Number MTD48
Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and Fairchild reserves the right at any time without notice to change said circuitry and specifications. LIFE SUPPORT POLICY FAIRCHILD'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 FAIRCHILD 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 (c) 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. www.fairchildsemi.com 10 2. A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. www.fairchildsemi.com

▲Up To Search▲

Price & Availability of 74LCXH1624405

	To Download 74LCXH1624405 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .