74VCX16244 LOW VOLTAGE CMOS 16-BIT BUS BUFFER (3-STATE) WITH 3.6V TOLERANT INPUTS AND OUTPUTS ■ ■ ■ ■ ■ ■ ■ ■ 3.6V TOLERANT INPUTS AND OUTPUTS HIGH SPEED : tPD = 2.5 ns (MAX.) at VCC = 3.0 to 3.6V tPD = 3.0 ns (MAX.) at VCC = 2.3 to 2.7V tPD = 5.0 ns (MAX.) at VCC = 1.8V POWER DOWN PROTECTION ON INPUTS AND OUTPUTS SYMMETRICAL OUTPUT IMPEDANCE: |IOH| = IOL = 24mA (MIN) at VCC = 3.0V |IOH| = IOL = 18mA (MIN) at VCC = 2.3V |IOH| = IOL = 6mA (MIN) at VCC = 1.8V OPERATING VOLTAGE RANGE: VCC(OPR) = 1.8V to 3.6V PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 16244 LATCH-UP PERFORMANCE EXCEEDS 300mA (JESD 17) ESD PERFORMANCE: HBM > 2000V (MIL STD 883 method 3015); MM > 200V TSSOP ORDER CODES PACKAGE TSSOP TUBE T &R 74VCX16244TTR PIN CONNECTION DESCRIPTION The 74VCX16244 is a low voltage CMOS 16 BIT BUS BUFFER (NON INVERTED) fabricated with sub-micron silicon gate and five-layer metal wiring C2MOS technology. It is ideal for low power and very high speed 1.8 to 3.6V applications; it can be interfaced to 3.6V 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. All inputs and outputs are equipped with protection circuits against static discharge, giving them 2KV ESD immunity and transient excess voltage. September 2001 1/10 74VCX16244 INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION PIN No IEC LOGIC SYMBOLS SYMBOL 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 NAME AND FUNCTION 1G to 1Y4 to 2Y4 to 3Y4 to 4Y4 4G 3G 4A1 to 4A4 3A1 to 3A4 2A1 to 2A4 1A1 to 1A4 2G 1Y1 2Y1 3Y1 4Y1 7, 18, 31, 42 Output Enable Data Outputs Data Outputs Data Outputs Data Outputs Output Enable Output Enable Data Outputs Data Outputs Data Outputs Data Outputs Output Enable Input Input Input Input GND Ground (0V) VCC Positive Supply Voltage 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 74VCX16244 ABSOLUTE MAXIMUM RATINGS Symbol V CC Parameter Value Unit Supply Voltage -0.5 to +4.6 V VI DC Input Voltage -0.5 to +4.6 V VO DC Output Voltage (OFF State) VO DC Output Voltage (High or Low State) (note 1) -0.5 to +4.6 V -0.5 to VCC + 0.5 V IIK DC Input Diode Current - 50 mA IOK DC Output Diode Current (note 2) - 50 mA IO DC Output Current ± 50 mA ICC or IGND DC VCC or Ground Current per Supply Pin Power Dissipation PD Tstg Storage Temperature TL Lead Temperature (10 sec) ± 100 mA 400 mW -65 to +150 °C 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, VO > V CC RECOMMENDED OPERATING CONDITIONS Symbol Value Unit Supply Voltage 1.8 to 3.6 V VI Input Voltage -0.3 to 3.6 V VO Output Voltage (OFF State) 0 to 3.6 V VO Output Voltage (High or Low State) 0 to VCC V V CC Parameter IOH, IOL High or Low Level Output Current (V CC = 3.0 to 3.6V) ± 24 mA IOH, IOL High or Low Level Output Current (V CC = 2.3 to 2.7V) High or Low Level Output Current (V CC = 1.8V) ± 18 mA IOH, IOL Top dt/dv Operating Temperature Input Rise and Fall Time (note 1) ±6 mA -55 to 125 °C 0 to 10 ns/V 1) VIN from 0.8V to 2V at VCC = 3.0V 3/10 74VCX16244 DC SPECIFICATIONS (2.7V < VCC < 3.6V unless otherwise specified) 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 4/10 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 2.7 to 3.6 V 0.8 0.8 2.7 to 3.6 I O=-100 µA VCC-0.2 VCC-0.2 2.7 IO=-12 mA 2.2 2.2 IO=-18 mA 2.4 2.4 IO=-24 mA 2.2 V 2.2 2.7 to 3.6 IO=100 µA 0.2 0.2 2.7 IO=12 mA 0.4 0.4 IO=18 mA 0.4 0.4 IO=24 mA 0.55 0.55 2.7 to 3.6 VI = 0 to 3.6V ±5 ±5 µA 0 VI or V O = 0 to 3.6V 10 10 µA 2.7 to 3.6 V I = VIH or VIL VO = 0 to 3.6V ± 10 ± 10 µA VI = VCC or GND VI or VO = VCC to 3.6V VIH = VCC - 0.6V 20 20 ± 20 ± 20 750 750 3.0 II -40 to 85 °C VCC (V) 3.0 VOL Value 2.7 to 3.6 2.7 to 3.6 V µA µA 74VCX16244 DC SPECIFICATIONS (2.3V < VCC < 2.7V unless otherwise specified) Test Condition Symbol VIH VIL VOH Parameter High Level Input Voltage Low Level Input Voltage High Level Output Voltage -40 to 85 °C VCC (V) Min. Low Level Output Voltage Ioff IOZ ICC Input Leakage Current Power Off Leakage Current High Impedance Output Leakage Current Quiescent Supply Current Max. Min. 1.6 2.3 to 2.7 Unit Max. 1.6 V 0.7 0.7 I O=-100 µA VCC-0.2 VCC-0.2 IO=-6 mA 2.0 2.0 IO=-12 mA 1.8 1.8 IO=-18 mA 1.7 V 1.7 IO=100 µA 0.2 0.2 IO=12 mA 0.4 0.4 IO=18 mA 0.6 0.6 2.3 to 2.7 VI = 0 to 3.6V ±5 ±5 µA 0 VI or V O = 0 to 3.6V 10 10 µA 2.3 to 2.7 V I = VIH or VIL VO = 0 to 3.6V ± 10 ± 10 µA VI = VCC or GND 20 20 VI or VO = VCC to 3.6V ± 20 ± 20 2.3 to 2.7 2.3 II -55 to 125 °C 2.3 to 2.7 2.3 VOL Value 2.3 to 2.7 V µA DC SPECIFICATIONS (1.8V < VCC < 2.3V unless otherwise specified) Test Condition Symbol VIH VIL VOH VOL II Ioff IOZ ICC Parameter High Level Input Voltage Low Level Input Voltage High Level Output Voltage Low Level Output Voltage Input Leakage Current Power Off Leakage Current High Impedance Output Leakage Current Quiescent Supply Current Value -40 to 85 °C VCC (V) Min. Max. 0.7 VCC -55 to 125 °C Min. Unit Max. 0.7 VCC V 1.8 to 2.3 0.2 VCC 1.8 0.2 VCC I O=-100 µA VCC-0.2 VCC-0.2 IO=-6 mA 1.4 1.4 V V IO=100 µA 0.2 0.2 IO=6 mA 0.3 0.3 1.8 VI = 0 to 3.6V ±5 ±5 µA 0 VI or V O = 0 to 3.6V 10 10 µA 1.8 V I = VIH or VIL VO = 0 to 3.6V ± 10 ± 10 µA 20 20 1.8 VI = VCC or GND VI or VO = VCC to 3.6V ± 20 ± 20 1.8 V µA 5/10 74VCX16244 DYNAMIC SWITCHING CHARACTERISTICS (Ta = 25°C, Input tr = tf = 2.0ns, C L = 30pF, R L = 500Ω) Test Condition Symbol VOLP V OLV VOHV Parameter Value TA = 25 °C VCC (V) Dynamic Low Voltage Quiet Output (note 1, 3) 1.8 2.5 3.3 1.8 Dynamic Low Voltage Quiet Output (note 1, 3) 2.5 3.3 1.8 2.5 3.3 Dynamic High Voltage Quiet Output (note 2, 3) Min. Typ. Unit Max. 0.25 0.6 0.8 -0.25 VIL = 0V VIH = VCC VIL = 0V VIH = VCC V -0.6 -0.8 1.5 1.9 2.2 VIL = 0V VIH = VCC V 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. 2) 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 HIGH state. 3) Parameters guaranteed by design. AC ELECTRICAL CHARACTERISTICS (CL = 30pF, R L = 500Ω, Input tr = tf = 2.0ns) Test Conditio n Symbol tPLH tPHL t PZL tPZH t PLZ tPHZ Parameter Propagation Delay Time Output Enable Time Output Disable Time tOSLH tOSHL Output To Output Skew Time (note1, 2) VCC (V) 1.8 2.3 to 2.7 3.0 to 3.6 1.8 2.3 to 2.7 3.0 to 3.6 1.8 2.3 to 2.7 3.0 to 3.6 1.8 2.3 to 2.7 3.0 to 3.6 Value -40 to 85 °C -55 to 125 °C Min. Max. Min. Max. 1.5 1.0 0.8 1.5 1.0 0.8 1.5 1.0 0.8 5.0 3.0 2.5 6.5 4.1 3.5 5.0 3.8 3.5 0.5 0.5 0.5 1.5 1.0 0.8 1.5 1.0 0.8 1.5 1.0 0.8 6.3 4.0 3.5 7.5 5.0 4.3 6.3 4.9 4.3 0.5 0.5 0.5 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 6/10 74VCX16244 CAPACITIVE CHARACTERISTICS Test Condition Symbol CIN C OUT CPD Parameter Value TA = 25 °C V CC (V) Input Capacitance Min. Typ. Unit Max. 1.8, 2.5 or 3.3 VIN = 0 or VCC Output Capacitance 1.8, 2.5 or 3.3 VIN = 0 or VCC 7 pF Power Dissipation Capacitance (note 1) 1.8, 2.5 or 3.3 fIN = 10MHz VIN = 0 or VCC 20 pF 6 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) TEST CIRCUIT TEST SWITCH tPLH, tPHL Open tPZL, tPLZ (VCC = 3.0 to 3.6V) 6V tPZL, tPLZ (VCC = 2.3 to 2.7V or 1.8V) tPZH, tPHZ 2V CC GND C L = 30 pF or equivalent (includes jig and probe capacitance) R L = R1 = 500Ω or equivalent R T = ZOUT of pulse generator (typically 50Ω) WAVEFORM SYMBOL VALUES VCC Symbol V IH 3.0 to3.6V 2.3 to 2.7V 1.8V 2.7V VCC VCC VM 1.5V VCC/2 VCC/2 VX VOL + 0.3V VOL + 0.15V VOL + 0.15V VY VOH - 0.3V VOH - 0.15V VOH - 0.15V 7/10 74VCX16244 WAVEFORM 1 : PROPAGATION DELAYS (f=1MHz; 50% duty cycle) WAVEFORM 2 : OUTPUT ENABLE AND DISABLE TIME (f=1MHz; 50% duty cycle) 8/10 74VCX16244 TSSOP48 MECHANICAL DATA mm. inch DIM. MIN. TYP MAX. A MIN. TYP. 1.1 A1 0.05 0.043 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 0.408 0.496 E 7.95 8.25 0.313 0.325 E1 6.0 6.2 0.236 0.244 e 0.5 BSC 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 7065588A 9/10 74VCX16244 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 infringe ment of patents or other righ ts 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 pub lication are subject to change without notice. Thi s pub lication supersedes and replaces all information previously supplied. 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