74LCX16541TTR ,16-BIT BUS BUFFER WITH 3-STATE OUTPUTS (NON INVERTED)74LCX16541LOW VOLTAGE CMOS 16-BIT BUS BUFFER (3-STATE)WITH 5V TOLERANT INPUTS/OUTPUTS (NON INVERTED ..
74LCX16543 ,Low Voltage 16-Bit Registered Transceiver with 5V Tolerant Inputs and OutputsFeaturesThe LCX16543 contains sixteen non-inverting transceivers
74LCX16541TTR
16-BIT BUS BUFFER WITH 3-STATE OUTPUTS (NON INVERTED)
1/9February 2003 5V TOLERANT INPUTS AND OUTPUTS HIGH SPEED:
tPD= 4.1ns (MAX.)at VCC =5V LOW POWER DISSIPATION:
ICC =2 μA (MAX.)at TA=25°C HIGH NOISE IMMUNITY:
VNIH =VNIL= 28% VCC (MIN.) POWER DOWN PROTECTION ON INPUTS
AND OUPUTS SYMMETRICAL OUTPUT IMPEDANCE:OH|=IOL =24 mA (MIN) BALANCED PROPAGATION DELAYS:
tPLH≅ tPHL OPERATING VOLTAGE RANGE:
VCC(OPR)= 2Vto 3.6V (1.5V Data Retention) PIN AND FUNCTION COMPATIBLE WITH SERIES 16541 IMPROVED LATCH-UP IMMUNITY ESD PERFORMANCE:
HBM>2000V(MIL STD 883 method 3015);
MM>200V
DESCRIPTIONThe 74LCX16541is an advanced high-speed
CMOS 16-BIT BUS BUFFER (3-STATE) fabricat- with sub-micron silicon gate and double-layer
metal wiringC2 MOS tecnology.
This is composed of two 8-bit sections with
separate output-enable signals. For either 8-bit
buffers section, the 3 STATE control gate
operates asa two input AND such thatif either
nG1 and nG2 are high,all outputs arein the high
impedence state. This deviceis designedto be
used with3 state memory address driveres, etc. hase same speed performanceat 3.3V than 5V
AC/ACT family, combined witha lower power con-
sumption.
All inputs and outputs are equipped with protec-
tion circuits against static discharge, giving them
2KV ESD immunity and transient excess voltage.
74LCX16541LOW VOLTAGE CMOS 16-BIT BUS BUFFER (3-STATE)
WITH 5V TOLERANT INPUTS/OUTPUTS (NON INVERTED)
ORDER CODES
PIN CONNECTION
74LCX165412/9
INPUT AND OUTPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION
TRUTH TABLE: Don’t Care: High Impedance
IEC LOGIC SYMBOLS
74LCX165413/9
ABSOLUTE MAXIMUM RATINGSAbsoluteMaximum Ratingsare those values beyond which damagetothe device mayoccur.Functional operation under these conditionsis
not impliedIo absolute maximum rating mustbe observed
2)Vo< GND
RECOMMENDED OPERATING CONDITIONS Truth Table guaranteed: 1.5Vto 3.6VVIN from0.8Vto2Vat VCC=3.0V
74LCX165414/9
SPECIFICATIONS ELECTRICAL CHARACTERISTICS (CL =50pF,RL= 500Ω, Inputtr=tf= 2.5ns)
74LCX165415/9
CAPACITIVE CHARACTERISTICS CPD isdefinedasthe valueofthe IC’s internal equivalent capacitance whichis calculatedfrom theoperating current consumption without
load. (Referto Test Circuit). Average operating currentcanbe obtainedbythe following equation. ICC(opr) =CPD xVCC xfIN +ICC/16
TEST CIRCUIT=50pFor equivalent (includesjig and probe capacitance) =R1= 500Ω or equivalent =ZOUTof pulse generator (typically 50Ω)
74LCX165416/9
WAVEFORM1: PROPAGATION DELAYS (f=1MHz; 50% duty cycle)
WAVEFORM2: OUTPUT ENABLE AND DISABLE TIME (f=1MHz; 50% duty cycle; VY=VOH-03V,X =VOL +0.3V)
