HEF40244B

INTEGRATED CIRCUITS DATA SHEET For a complete data sheet, please also download: The IC04 LOCMOS HE4000B Logic Family Specifications HEF, HEC The IC04 LOCMOS HE4000B Logic Package Outlines/Information HEF, HEC HEF40244B buffers Octal buffers with 3-state outputs Product specification File under Integrated Circuits, IC04 January 1995 Philips Semiconductors Product specification Octal buffers with 3-state outputs DESCRIPTION The HEF40244B is an octal non-inverting buffer with 3-state outputs. It features output stages with high current output capability suitable for driving highly capacitive loads. The 3-state outputs are controlled by the output enable inputs EOA and EOB. A HIGH on EO causes the outputs to assume a high impedance OFF-state. The device also features hysteresis on all inputs to improve noise immunity. Schmitt-trigger action in the inputs makes the circuit highly tolerant to slower input rise and fall times. The HEF40244B is pin and functionally compatible with the TTL ‘244’ device. HEF40244B buffers Fig.2 Pinning diagram. HEF40244BP(N): 20-lead DIL; plastic (SOT146-1) HEF40244BD(F): 20-lead DIL; ceramic (cerdip) (SOT152) HEF40244BT(D): 20-lead SO; plastic (SOT163-1) ( ): Package Designator North America PINNING IA1 to IA4 IB1 to IB4 OA1 to OA4 OB1 to OB4 EOA, EOB inputs inputs bus outputs bus outputs output enable inputs (active LOW) FAMILY DATA, IDD LIMITS category buffers See Family Specifications Fig.1 Functional diagram. January 1995 2 Philips S...