具有三态输出八路总线缓冲器(非反相) OCTAL BUS BUFFER WITH 3 STATE OUTPUTS NON INVERTED
DESCRIPTION
The 74VHC244 is an advanced high-speed CMOS OCTAL BUS BUFFER 3-STATE fabricated with sub-micron silicon gate and double-layer metal wiring C2MOS technology. G output enable governs four BUS BUFFERs. This device is designed to be used with 3 state memory address drivers, etc.
Power down protection is provided on all inputs and 0 to 7V can be accepted on inputs with no regard to the supply voltage. This device can be used to interface 5V to 3V.
All inputs and outputs are equipped with protection circuits against static discharge, giving them 2KV ESD immunity and transient excess voltage.
■ HIGH SPEED: tPD = 3.9 ns TYP. at VCC = 5V
■ LOW POWER DISSIPATION:
ICC = 4 µA MAX. at TA=25°C
■ HIGH NOISE IMMUNITY:
VNIH = VNIL = 28% VCC MIN.
■ POWER DOWN PROTECTION ON INPUTS
■ SYMMETRICAL OUTPUT IMPEDANCE:
|IOH| = IOL = 8 mA MIN
■ BALANCED PROPAGATION DELAYS:
tPLH = tPHL
■ OPERATING VOLTAGE RANGE:
VCCOPR = 2V to 5.5V
■ PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 244
■ IMPROVED LATCH-UP IMMUNITY
■ LOW NOISE: VOLP = 0.9V MAX.
电源电压DC 5.00 V, 5.50 V max
电路数 8
通道数 8
位数 8
工作温度Max 125 ℃
工作温度Min 55 ℃
电源电压 2V ~ 5.5V
电源电压Max 5.5 V
电源电压Min 2 V
安装方式 Surface Mount
引脚数 20
封装 SOIC-20
长度 13 mm
宽度 7.6 mm
高度 2.45 mm
封装 SOIC-20
工作温度 -40℃ ~ 85℃ TA
产品生命周期 Not Recommended for New Designs
包装方式 Tape & Reel TR
RoHS标准 RoHS Compliant
含铅标准 Lead Free