SN74AUC244

現行

具有 3 態輸出的 8 通道、0.8-V 至 2.7-V 高速緩衝器

立即訂購

產品規格表

document-pdfAcrobat SN74AUC244 datasheet (英文)

SN74AUC244

現行

產品規格表

立即訂購

產品詳細資料

Technology family

AUC

Number of channels

8

IOL (max) (mA)

9

Supply current (max) (µA)

20

IOH (max) (mA)

-9

Input type

Standard CMOS

Output type

3-State

Features

Balanced outputs, Over-voltage tolerant inputs, Partial power down (Ioff), Ultra high speed (tpd <5ns)

Rating

Catalog

Operating temperature range (°C)

-40 to 85

Technology family

AUC

Number of channels

8

IOL (max) (mA)

9

Supply current (max) (µA)

20

IOH (max) (mA)

-9

Input type

Standard CMOS

Output type

3-State

Features

Balanced outputs, Over-voltage tolerant inputs, Partial power down (Ioff), Ultra high speed (tpd <5ns)

Rating

Catalog

Operating temperature range (°C)

-40 to 85

VQFN (RGY)

20

15.75 mm² (4.5 mm × 3.5 mm)

Optimized for 1.8-V Operation and is 3.6-V I/O Tolerant to Support Mixed-Mode Signal Operation
I_off Supports Partial-Power-Down Mode Operation
Sub 1-V Operable
Max t_pd of 1.9 ns at 1.8 V
Low Power Consumption, 20-µA Max I_CC
±8-mA Output Drive at 1.8 V
Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
ESD Protection Exceeds JESD 22
- 2000-V Human-Body Model (A114-A)
- 200-V Machine Model (A115-A)
- 1000-V Charged-Device Model (C101)

Optimized for 1.8-V Operation and is 3.6-V I/O Tolerant to Support Mixed-Mode Signal Operation
I_off Supports Partial-Power-Down Mode Operation
Sub 1-V Operable
Max t_pd of 1.9 ns at 1.8 V
Low Power Consumption, 20-µA Max I_CC
±8-mA Output Drive at 1.8 V
Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
ESD Protection Exceeds JESD 22
- 2000-V Human-Body Model (A114-A)
- 200-V Machine Model (A115-A)
- 1000-V Charged-Device Model (C101)

This octal buffer/driver is operational at 0.8-V to 2.7-V V_CC, but is designed specifically for 1.65-V to 1.95-V V_CC operation.

The SN74AUC244 is organized as 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.

To ensure the high-impedance state during power up or power down, OE\ should be tied to V_CC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

This device is fully specified for partial-power-down applications using I_off. The I_off circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.

This octal buffer/driver is operational at 0.8-V to 2.7-V V_CC, but is designed specifically for 1.65-V to 1.95-V V_CC operation.

The SN74AUC244 is organized as 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.

To ensure the high-impedance state during power up or power down, OE\ should be tied to V_CC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

This device is fully specified for partial-power-down applications using I_off. The I_off circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.

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