CBT3244A Octal bus switch with quad output enables Rev. 3 8 September 2017 Product data sheet 1 General description The CBT3244A provides eight bits of high-speed TTL-compatible bus switching in a standard 244 device pinout. The low ON-state resistance of the switch allows connections to be made with minimal propagation delay. The CBT3244A device is organized as two 4-bit low-impedance switches with separate output-enable (OE) inputs. When OE is LOW, the switch is on and data can flow from port A to port B, or vice versa. When OE is HIGH, the switch is open and high-impedance state exists between the two ports. The CBT3244A is characterized for operation from -40 C to +85 C. 2 Features and benefits Standard 244-type pinout 5 switch connection between two ports TTL compatible control input levels Latch-up protection exceeds 500 mA per JESD78 ESD protection: HBM JESD22-A114 exceeds 2000 V MM JESD22-A115 exceeds 200 V CDM JESD22-C101 exceeds 1000 V 3 Ordering information Table 1.Ordering information Type number Package Temperature Name Description Version range CBT3244ABQ -40 C to + 85 C DHVQFN20 plastic dual in-line compatible thermal enhanced SOT764-1 very thin quad flat package no leads 20 terminals body 2.5 4.5 0.85 mm CBT3244APW -40 C to + 85 C TSSOP20 plastic thin shrink small outline package 20 leads SOT360-1 body width 4.4 mm CBT3244ADB -40 C to + 85 C SSOP20 plastic shrink small outline package 20 leads SOT339-1 body width 5.3 mm CBT3244AD -40 C to + 85 C SO20 plastic small outline package 20 leads SOT163-1 body width 7.5 mmNexperia CBT3244A Octal bus switch with quad output enables 4 Marking Table 2.Marking codes Type number Marking code CBT3244ABQ CT3244A CBT3244APW CT3244A CBT3244ADB CT3244A CBT3244AD CBT3244AD 5 Functional diagram CBT3244A 1A1 1B1 1A4 1B4 1OE 2A1 2B1 2A4 2B4 2OE 002aab655 Figure 1.Logic diagram CBT3244A All information provided in this document is subject to legal disclaimers. Nexperia B.V. 2017. All rights reserved. Product data sheet Rev. 3 8 September 2017 2 / 16