CMOS Logic ◆CMOS Logic Dual Bus Buffer ■Applications (Inverted 3-state outputs) ◆Operating Voltage Range : 2V ~ 5.5V ●Palmtops ◆High Speed Operations ●Digital Equipment : tpd =3.8ns TYP ◆Low Power Consumption : 2µA (max) ◆MSOP-8B Package ■Description ■Features XC74WL240ASR is Dual Bus Buffer manufactured using silicon gate CMOS processes. The small quiescent current, which is one of the features of the CMOS logic, gives way to high speed operations which enables LS-TTL. With wave forming buffers connected internally, stabilized output can be achieved as the series offers high noise immunity. As the series is integrated into a mini molded, MSOP-8B package, high density mounting is possible. High Speed Operations : tpd = 3.8ns TYP (VCC=5V) Operating Voltage Range : 2V ~ 5.5V Low Power Consumption: 2µA (max) ■Pin Configuration ■Functions Small Package : MSOP-8B INPUT G1 1 8 VCC A1 2 7 G2 Y2 3 6 Y1 GND 4 5 A2 G H L L 13 934 Ta=−40℃∼85℃ PARAMETER SYMBOL RATINGS UNITS Power Supply Voltage VCC −0.5∼+6.0 Ｖ Input Voltage VIN −0.5∼+6.0 Ｖ Output Voltage VOUT −0.5∼VCC＋0.5 Ｖ Input Diode Current IIK −20 mA Output Diode Current IOK ±20 mA Switch Output Current IOUT ±25 mA VCC, GND Current ICC, IGND ±50 mA Power Dissipation (Ta=25℃) Pd 300 mW Storage Temperature Tstg −65∼＋150 ℃ Note : Voltage is all Ground standardized. OUTPUT Y X H L Z L H H = High Level L = Low Level X = Don’t care Z = High Impedance MSOP-8B （TOP VIEW） ■Absolute Maximum Ratings A XC74WL240ASR ■Recommended Operating Conditions PARAMETER SYMBOL CONDITIONS UNITS Supply Voltage VCC 2∼5.5 Ｖ Input Voltage VIN 0∼5.5 Ｖ Output Voltage VOUT 0∼VCC Ｖ Operating Temperature Topr −40∼+85 ℃ Input Rise and Fall Time tr, tf 0∼200（VCC=3.3V） ns 0∼100（VCC=5V） ■DC Electrical Characteristics PARAMETER SYMBOL CONDITIONS MIN TYP MAX MIN MAX 1.5 − − 1.5 − 3.0 2.1 − − 2.1 − 5.5 3.85 − − 3.85 − 2.0 − − 0.5 − 0.5 3.0 − − 0.9 − 0.9 5.5 − − 1.65 − 1.65 1.9 2.0 − 1.9 − 2.9 3.0 − 2.9 − 4.4 4.5 − 4.4 − VCC（V） 2.0 VIH Input Voltage VIL 2.0 3.0 VOH Output Voltage 4.5 IOH=−50μA VIN=VIL 3.0 IOH=−4mA 2.58 − − 2.48 − 4.5 IOH=−8mA 3.94 − − 3.80 − − − 0.1 − 0.1 − − 0.1 − 0.1 − − 0.1 − 0.1 2.0 3.0 VOL Ta=−40∼85℃ Ta=25℃ 4.5 IOL=50μA VIN=VIH UNITS V V V V 3.0 IOL=4mA − − 0.36 − 0.44 4.5 IOL=8mA − − 0.36 − 0.44 VIN=VIL or VIH, VOUT=VCC or GND −0.25 − 0.25 −2.50 2.50 μA IOZ 5.0 Input Current IIN 0∼5.5 VIN=VCC or GND −0.1 − 0.1 −1.0 1.0 μA Quiscent Supply Current ICC 5.5 VIN=VCC or GND − − 2.0 − 20.0 μA 3 State Off-Leak Current 13 935 XC74WL240ASR ■Switching Electrical Characteristics PARAMETER SYMBOL CL tPLH 50pF Propagation Delay Time 15pF tPHL 50pF 15pF tZL 50pF Output Enable Time 15pF tZH 50pF tLZ 50pF MIN MAX 5.6 8 1 9.5 3.8 5.5 1 6.5 − 8.1 11.5 1 13 − 5.3 7.5 1 8.5 3.3 − 5.6 8 1 9.5 5.0 − 3.8 5.5 1 6.5 3.3 − 8.1 11.5 1 13 5.0 − 5.3 7.5 1 8.5 3.3 − 5.4 8 1 9.5 5.0 − 3.6 5.1 1 6 3.3 − 7.9 11.5 1 13 5.0 − 5.1 7.1 1 8 3.3 − 5.4 8 1 9.5 5.0 − 3.6 5.1 1 6 3.3 − 7.9 11.5 1 13 5.0 − 5.1 7.1 1 8 − 9.5 13.2 1 15 − 6.1 8.8 1 10 − 9.5 13.2 1 15 − 6.1 8.8 1 10 3.3 − − 1.5 − 1.5 5.0 − − 1 − 1 3.3 − − 1.5 − 1.5 5.0 − − 1 − 1 TYP 3.3 − 5.0 − 3.3 5.0 tHZ 50pF tosLH 50pF 3.3 5.0 Output Disable Time 3.3 5.0 Output Pin Skew （Note） tosHL MAX MIN VCC（V） 15pF 50pF CONDITIONS （tr=tf=3ns） Ta=−40∼85℃ Ta=25℃ RL=1kΩ RL=1kΩ RL=1kΩ RL=1kΩ UNITS ns ns ns ns ns ns ns ns ns ns ns ns Input Capacitance CIN − − − 4 10 − 10 pF Output Capacitance COUT − − − 6 − − − pF Power Dissipation Capacitance Cpd − − − 17 − − − pF Note: tosLH and tosHL are the guaranteed parameters. tosLH = | tPLHm - tPHLn | , tosHL = | tPHLm - tPHLn | ■Noise Characteristics 13 936 ( tr=tf=3ns ) Ta=25℃ PARAMETER SYMBOL CONDITIONS UNITS CL VCC(V) MIN TYP MAX Not functioning output maximum dynamic VOL VOLP 50pF 5.0 − 0.5 0.8 V Not functioning output minimum dynamic VOL VOLV 50pF 5.0 −0.8 −0.5 − V Minimum dynamic VIH VIHD 50pF 5.0 − − 3.5 V Maximum dynamic VIL VILD 50pF 5.0 − − 1.5 V XC74WL240ASR ■Propagation Delay Time ■Typical Application Circuit VCC VCC INPUT Pulse Generator OUTPUT G ZOUT=50Ω GND CL ■Waveforms tr tf 90% 50% INPUT 10% VCC 90% PRR=1MHz duty cycle 50% tr=tf=3ns 50% 10% GND VOH OUTPUT 50% 50% VOL tPHL tPLH 13 937 XC74WL240ASR ■Output Enable Time, Output Disable Time ■Typical Application Circuit VCC INPUT Pulse Generator ZOUT=50Ω VCC G VCC VOUT OUTPUT GND RL= 1kΩ CL VCC ■Waveforms tr tf 90% INPUT VCC 90% PRR=1MHz duty cycle 50% 50% 50% tr=tf=3ns 10% 10% GND tZH tHZ 90% OUTPUT （A=GND） 50% tLZ tZL VOL VOH 13 OUTPUT （A=VCC） 50% 10% 938 VOL