CBT3245A Octal bus switch Rev. 5 9 April 2020 Product data sheet 1. General description The CBT3245A provides eight bits of high-speed TTL-compatible bus switching. The low ON resistance of the switch allows connections to be made with minimal propagation delay. The CBT3245A is organized as one 8-bit bus switches with one output enable (OE) input. When OE is LOW, the switch is on and port A is connected to the B port. When OE is HIGH, each switch is disabled. 2. Features and benefits 5 switch connection between two ports TTL-compatible control input levels Multiple package options Latch-up protection exceeds 500 mA per JESD78 ESD protection: HBM JESD22-A114F exceeds 2000 V MM JESD22-A115B exceeds 150 V CDM JESD22-C101C exceeds 1000 V Specified from -40 C to +85 C 3. Ordering information Table 1. Ordering information Type number Package Temperature range Name Description Version CBT3245AD -40 C to +85 C SO20 plastic small outline package 20 leads SOT163-1 body width 7.5 mm CBT3245APW -40 C to +85 C TSSOP20 plastic thin shrink small outline package 20 leads SOT360-1 body width 4.4 mm CBT3245ABQ -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 4. Functional diagram 2 18 A1 B1 9 11 B8 A8 19 OE 001aao117 Fig. 1. Logic diagramNexperia CBT3245A Octal bus switch 5. Pinning information 5.1. Pinning CBT3245A terminal 1 index area 2 19 A1 OE A2 3 18 B1 A3 4 17 B2 CBT3245A A4 5 16 B3 n.c. 1 20 V A5 6 15 B4 CC 2 19 A1 OE 7 14 A6 B5 3 18 A2 B1 (1) A7 8 13 B6 GND A3 4 17 B2 A8 9 12 B7 5 16 A4 B3 6 15 A5 B4 A6 7 14 B5 aaa-001833 8 13 A7 B6 Transparent top view 9 12 A8 B7 (1) This is not a ground pin. There is no electrical or GND 10 11 B8 mechanical requirement to solder the pad. In case aaa-001831 soldered, the solder land should remain floating or connected to GND. Fig. 2. Pin configuration for SOT163-1 (SO20) and SOT360-1 (TSSOP20) Fig. 3. Pin configuration for SOT764-1 (DHVQFN20) 5.2. Pin description Table 2. Pin description Symbol Pin Description n.c. 1 not connected A1 to A8 2, 3, 4, 5, 6, 7, 8, 9 data input/output (A port) GND 10 ground (0 V) B1 to B8 18, 17, 16, 15, 14, 13, 12, 11 data input/output (B port) OE 19 output enable input (active LOW) V 20 positive supply voltage CC 6. Functional description Table 3. Functional description H = HIGH voltage level L = LOW voltage level Z = high-impedance OFF-state. Input Input/output OE An, Bn L An = Bn H Z CBT3245A All information provided in this document is subject to legal disclaimers. Nexperia B.V. 2020. All rights reserved Product data sheet Rev. 5 9 April 2020 2 / 11 GND 10 1 n.c. B8 11 20 V CC