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Part: 74LCXH162244
Category:
Logic
-> LCX->Low Voltage HCMOS, 5V I/O Tolerant
Description: Low Voltage CMOS 16-BIT Bus Buffer (3-STATE) With 5V Tolerant Inputs And Outputs
Company: ST Microelectronics, Inc.
Datasheet: Download 74LCXH162244 datasheet File size : 201 kB
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74LCXH162244
LOW VOLTAGE CMOS 16-BIT BUS BUFFER (3-STATE) WITH 5V TOLERANT INPUTS AND OUTPUTS
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5V TOLERANT INPUTS AND OUTPUTS H IGH SPEED : tPD = 4.4 ns (MAX.) at VCC = 3V POWER DOWN PROTECTION ON INPUTS AND OUTPUTS SYMMETRICAL OUTPUT IMPED ANCE: |IOH| = IOL = 12mA (MIN) at VCC = 3V PCI BUS LEVELS GUARANTEED AT 12 mA BALANCED PROPAGATION DELAYS: tPLH tPHL 26 SERIE RESISTORS IN OU TPUTS BUS HOLD PROVIDED ON DATA INPUT OPERATING VOLTAGE RANGE: VCC(OPR) = 2.0V to 3.6V (1.5V Data R eten tion) PIN AND FUN CTION COMPATIBLE WITH 74 SERIES H162244 LATCH-UP PERFORMANCE EXCEEDS 500mA (JESD 17) ESD PERFORMANCE: H BM > 2000V (MIL STD 883 method 3015); M M > 20 0V
TSSOP
O RDE R CO DE S
PACKAGE TSSOP TUBE T&R 74LCXH162244TTR
PIN CONNECTION
DESCRIPTION The 74LCX162244 is a low voltage CMOS 16 BIT BUS BUFFER (NON-INVERTED) fabricated with sub-micron silicon gate and double-layer metal wiring C2MOS technology. It is ideal for low power and high speed 3.3V applications; it can be interfaced to 5V signal environment for both inputs and outputs. Any nG output control governs four BUS BUFFERS. Output Enable input (nG) tied together gives full 16-bit operation. W hen nG is LOW, the outputs are on. When nG is HIGH , the output are in high impedance state. Active bus-hold circuitry is provided to hold unused or floating data inputs at a valid logic level. This device is designed to be used with 3 state memory address drivers, etc. The device circuits is including 26 series resistance in the outputs. These resistors permit to reduce line noise in high speed applications. All inputs and outputs are equipped w ith protection circuits against static discharge, giving them 2KV ESD immunity and transient excess voltage.
February 2003 1/10
74LCXH162244
INPUT AND OUTPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION
PIN No 1 2, 3, 5, 6 8, 9, 11, 12 13, 14, 16, 17 19, 20, 22, 23 24 25 30, 29, 27, 26 36, 35, 33, 32 41, 40, 38, 37 47, 46, 44, 43 48 4, 10, 15, 21, 28, 34, 39, 45 7, 18, 31, 42 SYMBOL 1G 1Y1 to 1Y4 2Y1 to 2Y4 3Y1 to 3Y4 4Y1 to 4Y4 4G 3G 4A1 to 4A4 3A1 to 3A4 2A1 to 2A4 1A1 to 1A4 2G GND VC C NAME AND FUNCTION Output Enable Input Data Outputs Data Outputs Data Outputs Data Outputs Output Enable Input Output Enable Input Data Outputs Data Outputs Data Outputs Data Outputs Output Enable Input Ground (0V) Positive Supply Voltage
IEC LOGIC SYMBOLS
TRUTH TABLE
INPUTS G L L H
X : Don`t Care Z : High Impedance
OUTPUT An L H X Yn L H Z
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74LCXH162244
AB SOLUTE MAXIMUM RATINGS
Symbol VCC VI VO VO IIK IOK IO IC C IG N D Tstg TL Supply Voltage DC Input Voltage DC Output Voltage (OFF State) DC Output Voltage (High or Low State) (note 1) DC Input Diode Current DC Output Diode Current (note 2) DC Output Current DC Supply Current per Supply Pin DC Ground Current per Supply Pin Storage Temperature Lead Temperature (10 sec) Parameter Value -0.5 to +7.0 -0.5 to +7.0 -0.5 to +7.0 -0.5 to VCC + 0.5 - 50 - 50 ± 50 ± 100 ± 100 -65 to +150 300 Unit V V V V mA mA mA mA mA °C °C
Absolute Maximum Ratings are those values beyond which damage to the device may occur. F unctional operation under these conditions is not implied 1) IO absolute maximum rating must be observed 2) VO < GND
RECOMMENDED OPERA TING CONDITIONS
Symbol VCC VI VO VO IOH, IOL IOH, IOL Top dt/dv Supply Voltage (note 1) Input Voltage Output Voltage (OFF State) Output Voltage (High or Low State) High or Low Level Output Current (VCC = 3.0 to 3.6V) High or Low Level Output Current (VCC = 2.7V ) Operating Temperature Input Rise and Fall Time (note 2) Parameter Value 2.0 to 3.6 0 to 5.5 0 to 5.5 0 to VCC ± 12 ±8 -55 to 125 0 to 10 Unit V V V V mA mA °C ns/V
1) Truth T able guaranteed: 1.5V to 3.6V 2) VIN from 0.8V to 2V at VCC = 3.0V
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74LCXH162244
DC SPEC IFICATIONS
Test Condition Symbol Parameter VCC (V) -40 to 85 °C Min. 2.0 2.7 to 3.6 0.8 2.7 to 3.6 2.7 3.0 VOL Low Level Output Voltage 2.7 to 3.6 2.7 3.0 II II(HOLD) Input Leakage Current Input Hold Current 2.7 to 3.6 3.0 3.6 Ioff IO Z Power Off Leakage Current High Impedance Output Leakage Current Quiescent Supply Current ICC incr. per Input 0 2.7 to 3.6 IO=-100 µA IO=-8 mA IO=-6 mA IO=-12 mA IO=100 µA IO=8 mA IO=6 mA IO=12 mA VI = 0 to 5.5V VI = 0.8V VI = 2.0V VI = 0 to 3.6V VI or VO = 5.5V VI = VIH or VIL VO = 0 to VCC VI = VCC or GND VI or VO= 3.6 to 5.5V VIH = VCC - 0.6V 75 -75 ± 500 10 ±5 20 ± 20 500 VCC-0.2 2.0 2.4 2.0 0.2 0.6 0.55 0.8 ±5 75 -75 ± 5 00 10 ±5 20 ± 20 500 µA µA µA µA µA VCC-0.2 2.0 2.4 2.0 0.2 0.6 0.55 0.8 ±5 µA V V 0.8 V Max. Value -55 to 125 °C Min. 2.0 Max. V Unit
VIH VIL V OH
High Level Input Voltage Low Level Input Voltage High Level Output Voltage
ICC ICC
2.7 to 3.6 2.7 to 3.6
DYNAMIC SWITCH ING CHARA CTERISTICS
Test Condition Symbol Parameter V CC (V) 3.3 CL = 50pF VIL = 0V, VIH = 3.3V Value TA = 25 °C Min. Typ. 0.8 -0.8 Max. V Unit
VOLP VOLV
Dynamic Low Level Quiet Output (note 1)
1) Number of outputs defined as "n". Measured with "n-1" outputs switching from HIGH to LOW or LOW to HIGH. The remaining output is measured in the LOW state.
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74LCXH162244
AC ELECTRICAL C HARACTERISTICS
Test Condition Symbol Parameter V CC (V) 2.7 3.0 to 3.6 2.7 3.0 to 3.6 2.7 3.0 to 3.6 3.0 to 3.6 CL (pF) 50 50 50 50 RL () 500 500 500 500 ts = tr (ns) 2.5 2.5 2.5 2.5 -40 to 85 °C Min. 1.5 1.5 1.5 1.5 1.5 1.5 Max. 5.6 4.4 6.3 5.9 6.3 5.9 1.0 Value -55 to 125 °C Min. 1.5 1.5 1.5 1.5 1.5 1.5 Max. 6.5 5.1 7.2 6.8 7.2 6.8 1.0 ns ns ns ns Unit
tPLH tPHL tPZL tPZH tPLZ tPHZ tOSLH tOSHL
Propagation Delay Time Output Enable Time Output Disable Time Output To Output Skew Time (note1, 2)
1) Skew is defined as the absolute value of the difference between the actual propagation delay for any two outputs of the same device switching in the same direction, either HIGH or LOW (tOSLH = | tPLHm - tPLHn| , tOSHL = | tPHLm - tPHLn|) 2) Parameter guaranteed by design
CA PACITIVE CHARA CTERISTICS
Test Condition Symbol Parameter V CC (V) Value TA = 25 °C Min. Typ. 4 10 3.3 fIN = 10MHz VIN = 0 or VCC 50 Max. pF pF pF Unit
CIN CO U T CPD
Input Capacitance Output Capacitance Power Dissipation Capacitance (note 1)
1) CPD is defined as the value of the IC's internal equivalent capacitance which is calculated from the operating current consumption without load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. ICC(opr) = CPD x VCC x fIN + ICC/16 (per circuit)
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