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74HCT244

Part Number	74HCT244
Manufacturer	nexperia
Description	Octal buffer/line driver
Published	Jul 25, 2019
Detailed Description	74HC244; 74HCT244 Octal buffer/line driver; 3-state Rev. 7 — 27 July 2021 Product data sheet 1. General description Th...
Datasheet	74HCT244 PDF File

Overview

74HC244; 74HCT244 Octal buffer/line driver; 3-state Rev.
7 — 27 July 2021 Product data sheet 1.
General description The 74HC244; 74HCT244 is an 8-bit buffer/line driver with 3-state outputs.
The device can be used as two 4-bit buffers or one 8-bit buffer.
The device features two output enables (1OE and 2OE), each controlling four of the 3-state outputs.
A HIGH on nOE causes the outputs to assume a high-impedance OFF-state.
Inputs include clamp diodes that enable the use of current limiting resistors to interface inputs to voltages in excess of VCC.
2.
Features and benefits • Wide supply voltage range from 2.
0 to 6.
0 V • CMOS low power dissipation • High noise immunity • Latch-up performance exceeds 100 mA per JESD 78 Class II Level B • Input levels: • For 74HC244: CMOS level • For 74HCT244: TTL level • Octal bus interface • Non-inverting 3-state outputs • Complies with JEDEC standards: • JESD8C (2.
7 V to 3.
6 V) • JESD7A (2.
0 V to 6.
0 V) • ESD protection: • HBM JESD22-A114F exceeds 2000 V • MM JESD22-A115-A exceeds 200 V • Multiple package options • Specified from -40 °C to +85 °C and -40 °C to +125 °C 3.
Ordering information Table 1.
Ordering information Type number Package Temperature range 74HC244D -40 °C to +125 °C 74HCT244D 74HC244PW -40 °C to +125 °C 74HCT244PW 74HC244BQ -40 °C to +125 °C 74HCT244BQ Name SO20 Description plastic small outline package; 20 leads; body width 7.
5 mm TSSOP20 plastic thin shrink small outline package; 20 leads; body width 4.
4 mm DHVQFN20 plastic dual in-line compatible thermal enhanced very thin quad flat package; no leads; 20 terminals; body 2.
5 × 4.
5 × 0.
85 mm Version SOT163-1 SOT360-1 SOT764-1 Nexperia 4.
Functional diagram Fig.
1.
Functional diagram 2 1A0 4 1A1 6 1A2 8 1A3 1OE 1 18 1Y0 17 2A0 16 1Y1 15 2A1 14 1Y2 13 2A2 12 1Y3 11 2A3 2OE 19 Fig.
2.
Logic symbol 74HC244; 74HCT244 Octal buffer/line driver; 3-state 1A0 2 1A1 4 1A2 6 1A3 8 1OE 1 2A0 17 2A1 15 2A2 13 2A3 11 19 2OE 1Y0 18 1Y1 16 1Y...

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