CBT3244ADB,118 NXP

CBT3244A Octal bus switch with quad output enables Rev. 02 15 September 2005 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 ow 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 Cto+85 C. 2. Features Standard 244-type pinout 5 switch connection between two ports TTL compatible control input levels Package options include: plastic small outline (SO20) shrink small outline (SSOP20) shrink small outline, QSOP (SSOP20) thin shrink small outline (TSSOP20) depopulated heatsink very thin quad at package, no leads (DHVQFN20) Latch-up protection exceeds 500 mA per JESD78 ESD protection exceeds 2000 V HBM per JESD22-A114, 200 V MM per JESD22-A115 and 1000 V CDM per JESD22-C101CBT3244A Philips Semiconductors Octal bus switch with quad output enables 3. Ordering information Table 1: Ordering information T = - 40 C to +85 C amb Type number Topside Package mark Name Description Version CBT3244ABQ CT3244A DHVQFN20 plastic dual in-line compatible thermal enhanced very thin quad at SOT764-1 package no leads 20 terminals body 2.5 4.5 0.85 mm CBT3244APW CT3244A TSSOP20 plastic thin shrink small outline package 20 leads SOT360-1 body width 4.4 mm 1 CBT3244ADS CT3244ADS SSOP20 plastic shrink small outline package 20 leads body width 3.9 mm SOT724-1 lead pitch 0.635 mm CBT3244ADB CT3244A SSOP20 plastic shrink small outline package 20 leads body width 5.3 mm SOT339-1 CBT3244AD CBT3244AD SO20 plastic small outline package 20 leads body width 7.5 mm SOT163-1 1 Also known as QSOP20. Standard packing quantities and other packaging data are available at www.standardics.philips.com/packaging. 4. Functional diagram CBT3244A 1A1 1B1 1A4 1B4 1OE 2A1 2B1 2A4 2B4 2OE 002aab655 Fig 1. Logic diagram of CBT3244A 9397 750 13362 Koninklijke Philips Electronics N.V. 2005. All rights reserved. Product data sheet Rev. 02 15 September 2005 2 of 18