SN74AUCH16244 Series

16-ch, 0.8-V to 2.7-V high speed buffers with bus-hold and 3-state outputs

Catalog

16-ch, 0.8-V to 2.7-V high speed buffers with bus-hold and 3-state outputs

Part	Number of Bits per Element	Supplier Device Package	Package / Case	Package / Case	Package / Case [custom]	Output Type	Logic Type	Current - Output High, Low [custom]	Current - Output High, Low [custom]	Voltage - Supply [Max]	Voltage - Supply [Min]	Number of Elements	Mounting Type	Operating Temperature [Max]	Operating Temperature [Min]
Texas Instruments SN74AUCH16244DGGR	4	48-TSSOP	48-TFSOP	0.24 in	6.1 mm	3-State	Buffer Non-Inverting	9 mA	9 mA	2.7 V	0.8 V	4	Surface Mount	85 °C	-40 °C
Texas Instruments SN74AUCH16244DGVR	4		48-TFSOP	0.173 in 4.4 mm		3-State	Buffer Non-Inverting	9 mA	9 mA	2.7 V	0.8 V	4	Surface Mount	85 °C	-40 °C

Catalog

16-ch, 0.8-V to 2.7-V high speed buffers with bus-hold and 3-state outputs

Key Features

• Member of the Texas Instruments Widebus™ FamilyOptimized for 1.8-V Operation and is 3.6-V I/O Tolerant to Support Mixed-Mode Signal OperationIoffSupports Partial-Power-Down Mode OperationSub 1-V OperableMax tpdof 1.8 ns at 1.8 VLow Power Consumption, 20-uA Max ICC±8-mA Output Drive at 1.8 VBus Hold on Data Inputs Eliminates the Need for External Pullup/Pulldown ResistorsLatch-Up Performance Exceeds 100 mA Per JESD 78, Class IIESD Protection Exceeds JESD 222000-V Human-Body Model (A114-A)200-V Machine Model (A115-A)1000-V Charged-Device Model (C101)Widebus is a trademark of Texas Instruments.Member of the Texas Instruments Widebus™ FamilyOptimized for 1.8-V Operation and is 3.6-V I/O Tolerant to Support Mixed-Mode Signal OperationIoffSupports Partial-Power-Down Mode OperationSub 1-V OperableMax tpdof 1.8 ns at 1.8 VLow Power Consumption, 20-uA Max ICC±8-mA Output Drive at 1.8 VBus Hold on Data Inputs Eliminates the Need for External Pullup/Pulldown ResistorsLatch-Up Performance Exceeds 100 mA Per JESD 78, Class IIESD Protection Exceeds JESD 222000-V Human-Body Model (A114-A)200-V Machine Model (A115-A)1000-V Charged-Device Model (C101)Widebus is a trademark of Texas Instruments.

Description

This 16-bit buffer/driver is operational at 0.8-V to 2.7-V VCC, but is designed specifically for 1.65-V to 1.95-V VCCoperation. The SN74AUCH16244 is designed specifically to improve the performance and density of 3-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters. The device can be used as four 4-bit buffers, two 8-bit buffers, or one 16-bit buffer. It provides true outputs and symmetrical active-low output-enable (OE)\ inputs. To ensure the high-impedance state during power up or power down, OE\ should be tied to VCCthrough a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. 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. This device is fully specified for partial-power-down applications using Ioff. The Ioffcircuitry disables the outputs, preventing damaging current backflow through the device when it is powered down. This 16-bit buffer/driver is operational at 0.8-V to 2.7-V VCC, but is designed specifically for 1.65-V to 1.95-V VCCoperation. The SN74AUCH16244 is designed specifically to improve the performance and density of 3-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters. The device can be used as four 4-bit buffers, two 8-bit buffers, or one 16-bit buffer. It provides true outputs and symmetrical active-low output-enable (OE)\ inputs. To ensure the high-impedance state during power up or power down, OE\ should be tied to VCCthrough a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. 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. This device is fully specified for partial-power-down applications using Ioff. The Ioffcircuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.