74LCX162244 LOW VOLTAGE CMOS 16-BIT BUS BUFFER (3-STATE) WITH 5V TOLERANT INPUTS AND OUTPUTS ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ 5V TOLERANT INPUTS AND OUTPUTS HIGH SPEED : tPD = 4.4 ns (MAX.) at VCC = 3V POWER DOWN PROTECTION ON INPUTS AND OUTPUTS SYMMETRICAL OUTPUT IMPEDANCE: |IOH| = IOL = 12mA (MIN) at VCC = 3V PCI BUS LEVELS GUARANTEED AT 12 mA BALANCED PROPAGATION DELAYS: tPLH ≅ tPHL 26Ω SERIE RESISTORS IN OUTPUTS OPERATING VOLTAGE RANGE: VCC(OPR) = 2.0V to 3.6V (1.5V Data Retention) PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 162244 LATCH-UP PERFORMANCE EXCEEDS 500mA (JESD 17) ESD PERFORMANCE: HBM > 2000V (MIL STD 883 method 3015); MM > 200V TSSOP ORDER CODES PACKAGE TSSOP TUBE T&R 74LCX162244TTR 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. When nG is LOW, the outputs are on. When nG is HIGH, the output are in high impedance state. This device is designed to be used with 3 state memory address drivers, etc. The device circuits is including 26Ω series resistance in the outputs. These resistors permit to reduce line noise in high speed applications. All inputs and outputs are equipped with protection circuits against static discharge, giving them 2KV ESD immunity and transient excess voltage. February 2003 1/10 74LCX162244 INPUT AND OUTPUT EQUIVALENT CIRCUIT IEC LOGIC SYMBOLS PIN DESCRIPTION PIN No SYMBOL NAME AND FUNCTION 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 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 Ground (0V) 7, 18, 31, 42 VCC Positive Supply Voltage 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 TRUTH TABLE INPUTS G An Yn L L H L H X L H Z X : Don‘t Care Z : High Impedance 2/10 OUTPUT 74LCX162244 ABSOLUTE MAXIMUM RATINGS Symbol VCC Parameter Value Unit Supply Voltage -0.5 to +7.0 V VI DC Input Voltage -0.5 to +7.0 V VO DC Output Voltage (OFF State) VO DC Output Voltage (High or Low State) (note 1) -0.5 to +7.0 V -0.5 to VCC + 0.5 - 50 V mA IIK DC Input Diode Current IOK DC Output Diode Current (note 2) - 50 mA IO DC Output Current ± 50 mA ICC DC Supply Current per Supply Pin ± 100 mA IGND DC Ground Current per Supply Pin ± 100 mA Tstg Storage Temperature -65 to +150 °C TL Lead Temperature (10 sec) 300 °C Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is not implied 1) IO absolute maximum rating must be observed 2) VO < GND RECOMMENDED OPERATING CONDITIONS Symbol VCC Parameter Supply Voltage (note 1) Value Unit 2.0 to 3.6 V VI Input Voltage 0 to 5.5 V VO Output Voltage (OFF State) 0 to 5.5 V VO Output Voltage (High or Low State) 0 to VCC V IOH, IOL High or Low Level Output Current (VCC = 3.0 to 3.6V) IOH, IOL High or Low Level Output Current (VCC = 2.7V ) Top dt/dv Operating Temperature Input Rise and Fall Time (note 2) ± 12 mA ±8 mA -55 to 125 °C 0 to 10 ns/V 1) Truth Table guaranteed: 1.5V to 3.6V 2) VIN from 0.8V to 2V at VCC = 3.0V 3/10 74LCX162244 DC SPECIFICATIONS Test Condition Symbol VIH VIL VOH Parameter High Level Input Voltage Low Level Input Voltage High Level Output Voltage Low Level Output Voltage Ioff IOZ ICC ∆ICC Input Leakage Current Power Off Leakage Current High Impedance Output Leakage Current Quiescent Supply Current ICC incr. per Input Min. Max. 2.0 -55 to 125 °C Min. Unit Max. 2.0 V 2.7 to 3.6 0.8 0.8 2.7 to 3.6 IO=-100 µA VCC-0.2 VCC-0.2 2.7 IO=-8 mA 2.0 2.0 IO=-6 mA 2.4 2.4 IO=-12 mA 2.0 2.0 V V 2.7 to 3.6 IO=100 µA 2.7 IO=8 mA 0.6 0.6 IO=6 mA 0.55 0.55 IO=12 mA 0.8 0.8 2.7 to 3.6 VI = 0 to 5.5V ±5 ±5 µA 0 VI or VO = 5.5V 10 10 µA 2.7 to 3.6 VI = VIH or VIL VO = 0 to VCC ±5 ±5 µA 2.7 to 3.6 VI = VCC or GND VI or VO= 3.6 to 5.5V 20 20 ± 20 ± 20 2.7 to 3.6 VIH = VCC - 0.6V 500 500 3.0 II -40 to 85 °C VCC (V) 3.0 VOL Value 0.2 0.2 V µA µA DYNAMIC SWITCHING CHARACTERISTICS Test Condition Symbol VOLP VOLV Parameter Dynamic Low Level Quiet Output (note 1) TA = 25 °C VCC (V) 3.3 Value Min. CL = 50pF VIL = 0V, VIH = 3.3V Typ. 0.8 -0.8 Unit Max. V 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. 4/10 74LCX162244 AC ELECTRICAL CHARACTERISTICS Test Condition Symbol Parameter tPLH tPHL Propagation Delay Time tPZL tPZH Output Enable Time tPLZ tPHZ Output Disable Time tOSLH tOSHL Output To Output Skew Time (note1, 2) VCC (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) RL (Ω) Value ts = tr (ns) 50 500 2.5 50 500 2.5 50 500 2.5 50 500 2.5 -40 to 85 °C -55 to 125 °C Min. Max. Min. Max. 1.5 1.5 1.5 1.5 1.5 1.5 5.6 4.4 6.3 5.9 6.3 5.9 1.0 1.5 1.5 1.5 1.5 1.5 1.5 6.5 5.1 7.2 6.8 7.2 6.8 1.0 Unit ns ns ns ns 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 CAPACITIVE CHARACTERISTICS Test Condition Symbol CIN COUT CPD Parameter Value TA = 25 °C VCC (V) Min. Typ. Unit Max. Input Capacitance 4 pF Output Capacitance 10 pF Power Dissipation Capacitance (note 1) 3.3 fIN = 10MHz VIN = 0 or VCC 50 pF 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) 5/10 74LCX162244 TEST CIRCUIT TEST tPLH, tPHL SWITCH Open tPZL, tPLZ 6V tPZH, tPHZ GND CL = 50 pF or equivalent (includes jig and probe capacitance) RL = R1 = 500Ω or equivalent RT = ZOUT of pulse generator (typically 50Ω) WAVEFORM 1 : PROPAGATION DELAYS (f=1MHz; 50% duty cycle) 6/10 74LCX162244 WAVEFORM 2 : OUTPUT ENABLE AND DISABLE TIME (f=1MHz; 50% duty cycle) 7/10 74LCX162244 TSSOP48 MECHANICAL DATA mm. inch DIM. MIN. TYP MAX. A MIN. TYP. 1.2 A1 0.05 0.047 0.15 A2 MAX. 0.002 0.006 0.9 0.035 b 0.17 0.27 0.0067 0.011 c 0.09 0.20 0.0035 0.0079 D 12.4 12.6 0.488 0.496 E 8.1 BSC E1 6.0 0.318 BSC 6.2 e 0.236 0.5 BSC 0.244 0.0197 BSC K 0˚ 8˚ 0˚ 8˚ L 0.50 0.75 0.020 0.030 A A2 A1 b K e L E c D E1 PIN 1 IDENTIFICATION 1 7065588C 8/10 74LCX162244 Tape & Reel TSSOP48 MECHANICAL DATA mm. inch DIM. MIN. A TYP MAX. MIN. 330 MAX. 12.992 C 12.8 D 20.2 0.795 N 60 2.362 T 13.2 TYP. 0.504 30.4 0.519 1.197 Ao 8.7 8.9 0.343 0.350 Bo 13.1 13.3 0.516 0.524 Ko 1.5 1.7 0.059 0.067 Po 3.9 4.1 0.153 0.161 P 11.9 12.1 0.468 0.476 9/10 74LCX162244 Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. © The ST logo is a registered trademark of STMicroelectronics © 2003 STMicroelectronics - Printed in Italy - All Rights Reserved STMicroelectronics GROUP OF COMPANIES Australia - Brazil - Canada - China - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan - Malaysia - Malta - Morocco Singapore - Spain - Sweden - Switzerland - United Kingdom - United States. © http://www.st.com 10/10