INTEGRATED CIRCUITS 74ABT244 Octal buffer/line driver (3-State) Product specification Supersedes data of 1995 Sep 06 IC23 Data Handbook 1998 Jan 16
Philips Semiconductors Product specification Octal buffer/line driver (3-State) 74ABT244 FEATURES DESCRIPTION • Octal bus interface • 3-State buffers • Output capability: +64mA/–32mA • Latch-up protection exceeds 500mA per Jedec Std 17 • ESD protection exceeds 2000 V per MIL STD 883 Method 3015 The 74ABT244 high-performance BiCMOS device combines low static and dynamic power dissipation with high speed and high output drive. The 74ABT244 device is an octal buffer that is ideal for driving bus lines.
Philips Semiconductors Product specification Octal buffer/line driver (3-State) 74ABT244 LOGIC SYMBOL LOGIC SYMBOL (IEEE/IEC) 2 1A0 1Y0 4 1A1 1Y1 1A2 1Y2 18 1 EN 6 8 1Y3 1A3 16 14 12 1 1OE 2A3 2Y3 2A2 2Y2 15 2A1 2Y1 17 2A0 2Y0 11 13 19 9 2 18 4 16 6 14 8 12 19 EN 7 11 9 13 7 5 3 2OE 15 5 17 3 SA00149 SA00150 FUNCTION TABLE INPUTS H L X Z OUTPUTS 1OE 1An 2OE 2An 1Yn 2Yn L L L L L L L H L H H H H X H X Z Z = = = = High voltage leve
Philips Semiconductors Product specification Octal buffer/line driver (3-State) 74ABT244 RECOMMENDED OPERATING CONDITIONS LIMITS SYMBOL VCC PARAMETER UNIT DC supply voltage Min Max 4.5 5.5 V 0 VCC V VI Input voltage VIH High-level input voltage VIL Low-level Input voltage 0.8 V IOH High-level output current –32 mA IOL Low-level output current 64 mA 0 5 ns/V –40 +85 °C 2.
Philips Semiconductors Product specification Octal buffer/line driver (3-State) 74ABT244 AC CHARACTERISTICS GND = 0V; tR = tF = 2.5ns; CL = 50pF, RL = 500Ω 74ABT244 SYMBOL PARAMETER Tamb = +25°C VCC = +5.0V WAVEFORM Tamb = –40°C to +85°C VCC = +5.0V ±0.5V Min Typ Max Min Max UNIT tPLH tPHL Propagation delay An to Yn 1 1.0 1.0 2.6 2.9 4.1 4.2 1.0 1.0 4.6 4.6 ns tPZH tPZL Output enable time to High and Low level 2 1.1 2.1 3.1 4.1 4.6 5.6 1.1 2.1 5.1 6.
Philips Semiconductors Product specification Octal buffer/line driver (3-State) 74ABT244 DIP20: plastic dual in-line package; 20 leads (300 mil) 1998 Jan 16 6 SOT146-1
Philips Semiconductors Product specification Octal buffer/line driver (3-State) 74ABT244 SO20: plastic small outline package; 20 leads; body width 7.
Philips Semiconductors Product specification Octal buffer/line driver (3-State) 74ABT244 SSOP20: plastic shrink small outline package; 20 leads; body width 5.
Philips Semiconductors Product specification Octal buffer/line driver (3-State) 74ABT244 TSSOP20: plastic thin shrink small outline package; 20 leads; body width 4.
Philips Semiconductors Product specification Octal buffer/line driver (3-State) 74ABT244 Data sheet status Data sheet status Product status Definition [1] Objective specification Development This data sheet contains the design target or goal specifications for product development. Specification may change in any manner without notice. Preliminary specification Qualification This data sheet contains preliminary data, and supplementary data will be published at a later date.
