74ABT245DB,112 Nexperia

74ABT245 Octal transceiver with direction pin 3-state Rev. 5 9 July 2021 Product data sheet 1. General description The 74ABT245 is an 8-bit transceiver with 3-state outputs. The device features an output enable (OE) and send/receive (DIR) for direction control. A HIGH on OE 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 Octal bidirectional bus interface 3-State buffers Supply voltage range from 4.5 to 5.5 V BiCMOS high speed and output drive Direct interface with TTL levels Output capability: +64 mA/32 mA Power-up 3-State Live insertion/extraction permitted Inputs are disabled during 3-state mode 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 74ABT245D -40 C to +85 C SO20 plastic small outline package 20 leads SOT163-1 body width 7.5 mm 74ABT245PW -40 C to +85 C TSSOP20 plastic thin shrink small outline package 20 leads SOT360-1 body width 4.4 mmNexperia 74ABT245 Octal transceiver with direction pin 3-state 4. Functional diagram DIR 1 OE 19 A0 2 B0 18 A1 3 B1 17 A2 4 19 G3 B2 1 16 3EN1 3EN2 A3 5 B3 15 1 A4 18 2 6 2 B4 14 3 17 A5 7 4 16 B5 13 5 15 A6 8 6 14 B6 12 7 13 A7 9 8 12 B7 11 9 11 mna174 mna175 Fig. 1. Logic diagram Fig. 2. IEC logic symbol 5. Pinning information 5.1. Pinning 74ABT245 74ABT245 DIR 1 20 V DIR 1 20 V CC CC A0 2 19 OE A0 2 19 OE A1 3 18 B0 A1 3 18 B0 A2 4 17 B1 A2 4 17 B1 A3 5 16 B2 A3 5 16 B2 A4 6 15 B3 A4 6 15 B3 A5 7 14 B4 A5 7 14 B4 A6 8 13 B5 A6 8 13 B5 A7 9 12 B6 A7 9 12 B6 GND 10 11 B7 GND 10 11 B7 aaa-027551 aaa-027552 Fig. 3. Pin configuration SOT163-1 (SO20) Fig. 4. Pin configuration SOT360-1 (TSSOP20) 74ABT245 All information provided in this document is subject to legal disclaimers. Nexperia B.V. 2021. All rights reserved Product data sheet Rev. 5 9 July 2021 2 / 12