CD74HC244

更新时间： 2024-11-24 23:00:39

品牌	Logo	应用领域
德州仪器 - TI		驱动器
页数	文件大小	规格书
8页	41K
描述
High Speed CMOS Logic Octal Buffer/Line Drivers, Three-State

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数据手册

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CD74HC244 数据手册

CD74HC240, CD74HCT240,

CD74HC241, CD74HCT241,

CD74HC244, CD74HCT244

Data sheet acquired from Harris Semiconductor

SCHS167

High Speed CMOS Logic

November 1997

Octal Buffer/Line Drivers, Three-State

Features

• CD74HC/HCT240 Inverting

• CD74HC/HCT241 Non-Inverting

• CD74HC/HCT244 Non-Inverting

[ /Title

(CD74

HC240

CD74

HCT24

CD74

HC241

CD74

HCT24

• Typical Propagation Delay = 8ns at V

= 5V,

C = 15pF, T = 25 C for HC240

• Three-State Outputs

• Buffered Inputs

• High-Current Bus Driver Outputs

• Fanout (Over Temperature Range)

- Standard Outputs. . . . . . . . . . . . . . . 10 LSTTL Loads

- Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads

• Wide Operating Temperature Range . . . -55 C to 125 C

• Balanced Propagation Delay and Transition Times

• Signiﬁcant Power Reduction Compared to LSTTL

Logic ICs

CD74

HC244

• HC Types

- 2V to 6V Operation

- High Noise Immunity: N = 30%, N = 30% of V

IL IH CC

CD74

at V

= 5V

• HCT Types

- 4.5V to 5.5V Operation

- Direct LSTTL Input Logic Compatibility,

V = 0.8V (Max), V = 2V (Min)

IL IH

- CMOS Input Compatibility, I ≤ 1µA at V , V

OL OH

Pinout

CD74HC240, CD74HCT240, CD74HC241, CD74HCT241,

CD74HC244, CD74HCT244

(PDIP, SOIC)

TOP VIEW

241

244

241

244

240

1OE

1A0

2Y3

1A1

2Y2

1A2

2Y1

1A3

2Y0

1OE

1A0

2Y3

1A1

2Y2

1A2

2Y1

1A3

2Y0

2OE (241) 2OE (240, 244)

18 1Y0

17 2A3

16 1Y1

1Y0

2A3

1Y1

2A2

1Y2

2A1

2A2

1Y2

13 2A1

1Y3

11 2A0

1Y3

2A0

GND GND 10

CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.

File Number 1656.1

12 3 4 5 6 7 8

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