74LVCH244A：Standard Logic _ BDTIC a Leading Distributor in China

74LVCH244A：Standard Logic

Part Number	Data Sheet	SPICE Model	Number of Gates	Family	VCC Min (V)	VCC Max (V)	tpd max @ (1.5V) (ns)	tpd max @ (1.8V) (ns)	tpd max @ (2.5V) (ns)	tpd max @ (3.3V) (ns)	tpd max @ (5.0V) (ns)	Input/ Output Current
74LVCH244A	74LVCH244A.pdf	-	8	LVC	1.65	3.6	-	10.9	7.9	5.9	-	24

Description

The 74LVCH244A provides two 4-bit line drivers with separate output-enable (OE) inputs. When OE is low, the device passes data from the A inputs to the Y outputs. When OE is high, the outputs are in the high-impedance state.

The device is designed for operation with a power supply range of 1.65V to 3.6V.

The inputs are tolerant to 5.5V allowing this device to be used in a mixed voltage environment. The device is fully specified for partial power down applications using I_OFF. The I_OFF circuitry disables the output preventing damaging current backflow when the device is powered down.

Bus hold circuitry holds unused or un-driven inputs at a high or low logic state. The use of external pull-up or pull down resistors is not recommended.

Application

General Purpose Logic
Bus Driving
Power Down Signal Isolation
Wide array of products such as:
- PCs, Notebooks, Netbooks, Ultrabooks
- Networking Computer Peripherals, Hard Drives, CD/DVD ROM
- TV, DVD, DVR, set top box

Features

Supply Voltage Range from 1.65V to 3.6V
Sinks or Sources 24mA at V_CC = 3V
CMOS Low Power Consumption
I_OFF Supports Partial-Power Down Operation
Inputs or Outputs Accept up to 5.5V
Inputs Can be Driven by 3.3V or 5V Allowing for Mixed Voltage Applications
Schmitt Trigger Action at All Inputs
Typical V_OLP (Quiet Output Ground Bounce) less than 0.8V with V_CC = 3.3V and T_A = +25°C
Typical V_OHV (Quiet Output Dynamic VOH) greater than 2.0V with V_CC = 3.3V and T_A = +25°C
ESD Protection Tested per JESD 22
Exceeds 200-V Machine Model (A115)
Exceeds 2000-V Human Body Model (A114)
Exceeds 1000-V Charged Device Model (C101)
Latch-Up Exceeds 250mA per JESD 78, Class I
Totally Lead-Free & Fully RoHS compliant
Halogen and Antimony Free. Green” Device