2024/6/18 11:04:15
250
SN74LVCH244ANSR_TI(德州仪器)中文资料_英文资料_价格_PDF手册
FEATURES
• Operate From 1.65 V to 3.6 V
• Inputs Accept Voltages to 5.5 V
• Max tpd of 5.9 ns at 3.3 V
• Typical VOLP (Output Ground Bounce)<0.8 V at VCC = 3.3 V, TA = 25°C
• Typical VOHV (Output VOH Undershoot)>2 V at VCC= 3.3 V, TA = 25°C
• Support Mixed-Mode Signal Operation on All Ports(5-V Input/Output Voltage With 3.3-V VCC)
• I off Supports Partial-Power-Down Mode Operation
• Bus Hold on Data Inputs Eliminates the Need for External Pullup/Pulldown Resistors
• Latch-Up Performance Exceeds 250 mA Per JESD 17
• ESD Protection Exceeds JESD 22
– 2000-V Human-Body Model (A114-A)
– 200-V Machine Model (A115-A)
– 1000-V Charged-Device Model (C101)
DESCRIPTION/ORDERING INFORMATION
The SN54LVCH244A octal buffer/line driver is designed for 2.7-V to 3.6-V VCC operation, and the SN74LVCH244A octal buffer/line driver is designed for 1.65-V to 3.6-V VCC operation
These devices are organized as two 4-bit line drivers with separate output-enable (OE) inputs. When OE is low, these devices pass data from the A inputs to the Y outputs. When OE is high, the outputs are in the high-impedance state.
Active bus-hold circuitry holds unused or undriven inputs at a valid logic state. Use of pullup or pulldown resistors with the bus-hold circuitry is not recommended.
Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of these devices as translators in a mixed 3.3-V/5-V system environment
These devices are fully specified for partial-power-down applications using I off . The I off circuitry disables the outputs, preventing damaging current backflow through the devices when they are powered down.
To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
热门型号
热门资讯
20万现货SKU
品类不断扩充
科技智能大仓储
4小时快速交货
仅从原厂和代理商进货
每一颗料均可原厂追溯
明码标价节省时间成本
一站式采购正品元器件
工商网监