74LVC244A-Q100; 74LVCH244A-Q100

Octal buffer/line driver; 3-state

应用领域

The 74LVC244A-Q100; 74LVCH244A-Q100 is an octal non-inverting buffer/line driver with 3-state outputs. The 3-state outputs are controlled by the output enable inputs 1OE and 2OE. A HIGH on nOE causes the outputs to assume a high-impedance OFF-state. Schmitt-trigger action at all inputs makes the circuit highly tolerant for slower input rise and fall times.

Inputs can be driven from either 3.3 V or 5.0 V devices. In 3-state operation, outputs can handle 5 V. These features allow the use of these devices as translators in a mixed 3.3 V and 5 V environment.

The 74LVCH244A-Q100 bus hold on data inputs eliminates the need for external pull-up resistors to hold unused inputs.

This product has been qualified to the Automotive Electronics Council (AEC) standard Q100 (Grade 1) and is suitable for use in automotive applications.

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产品详情

特性

Automotive product qualification in accordance with AEC-Q100 (Grade 1)

Specified from -40 °C to +85 °C and from -40 °C to +125 °C

5 V tolerant inputs/outputs for interfacing with 5 V logic
Wide supply voltage range from 1.2 V to 3.6 V
CMOS low-power consumption
Direct interface with TTL levels
Inputs accept voltages up to 5.5 V
High-impedance when VCC = 0 V
Bus hold on all data inputs (74LVCH244A-Q100 only)
Complies with JEDEC standard:

JESD8-7A (1.65 V to 1.95 V)
JESD8-5A (2.3 V to 2.7 V)
JESD8-C/JESD36 (2.7 V to 3.6 V)

ESD protection:

MIL-STD-883, method 3015 exceeds 2000 V
HBM JESD22-A114F exceeds 2000 V
MM JESD22-A115-A exceeds 200 V (C = 200 pF, R = 0 Ω)

Multiple package options
DHVQFN package with Side-Wettable Flanks enabling Automatic Optical Inspection (AOI) of solder joints

参数类型

Type number	Product status	VCC (V)	Logic switching levels	Output drive capability (mA)	fmax (MHz)	Nr of bits	Power dissipation considerations	Tamb (°C)	Rth(j-a) (K/W)	Ψth(j-top) (K/W)	Rth(j-c) (K/W)	Package name
74LVC244ABQ-Q100	Production	1.2 - 3.6	CMOS/LVTTL	± 24	175	8	low	-40~125	79	9.5	50	DHVQFN20
74LVC244AD-Q100	Production	1.2 - 3.6	CMOS/LVTTL	± 24	175	8	low	-40~125	85	27.6	8	SO20
74LVC244APW-Q100	Production	1.2 - 3.6	CMOS/LVTTL	± 24	175	8	low	-40~125	101	4.7	45	TSSOP20
74LVCH244ABQ-Q100	Production	1.2 - 3.6	CMOS/LVTTL	± 24	175	8	low	-40~125	78	9.3	50	DHVQFN20
74LVCH244AD-Q100	Production	1.2 - 3.6	CMOS/LVTTL	± 24	175	8	low	-40~125	85	27.5	61	SO20
74LVCH244APW-Q100	Production	1.2 - 3.6	CMOS/LVTTL	± 24	175	8	low	-40~125	101	4.6	45	TSSOP20

缓冲器/驱动器/收发器

74LVC244A-Q100; 74LVCH244A-Q100

应用领域

特性

参数类型