74ABT244DB,118 Nexperia

74ABT244 Octal buffer/line driver 3-state Rev. 4 8 July 2021 Product data sheet 1. General description The 74ABT244 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. This device is fully specified for partial power down applications using I . The I circuitry disables the output, preventing the potentially damaging backflow current OFF OFF through the device when it is powered down. 2. Features and benefits Supply voltage range from 4.5 to 5.5 V Octal bus interface 3-State buffers BiCMOS high speed and output drive Output capability: +64 mA/32 mA Direct interface with TTL levels Power-up 3-State Live insertion capability I circuitry provides partial Power-down mode operation OFF Latch-up protection exceeds 500 mA per JESD78 class II level A ESD protection: HBM JESD22-A114F exceeds 2000 V MM JESD22-A115-A exceeds 200 V Specified from -40 C to +85 C 3. Ordering information Table 1. Ordering information Type number Package Temperature range Name Description Version 74ABT244D -40 C to +85 C SO20 plastic small outline package 20 leads SOT163-1 body width 7.5 mm 74ABT244PW -40 C to +85 C TSSOP20 plastic thin shrink small outline package 20 leads SOT360-1 body width 4.4 mmNexperia 74ABT244 Octal buffer/line driver 3-state 4. Functional diagram 1A0 1Y0 2 18 1A1 1Y1 4 16 1Y2 1A2 6 14 1Y3 1A3 8 12 1 EN 1OE 1 18 2 4 16 2A0 2Y0 17 3 14 6 12 8 2A1 2Y1 15 5 19 EN 2A2 2Y2 13 7 9 11 2Y3 2A3 11 9 7 13 5 15 2OE 19 17 3 mna875 mna873 Fig. 1. Logic symbol Fig. 2. IEC logic symbol 2 17 18 3 1A0 1Y0 2A0 2Y0 4 15 16 5 1A1 2A1 1Y1 2Y1 6 14 13 7 1A2 2A2 1Y2 2Y2 8 11 12 9 1A3 1Y3 2A3 2Y3 1 19 1OE 2OE mna874 Fig. 3. Functional diagram 74ABT244 All information provided in this document is subject to legal disclaimers. Nexperia B.V. 2021. All rights reserved Product data sheet Rev. 4 8 July 2021 2 / 13