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CBT3244A

Octal bus switch with quad output enables

Philips Electronics 

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 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

s Standard '244-type pinout

s 5 Ω switch connection between two ports

s TTL compatible control input levels

s Package options include:

x plastic small outline (SO20)

x shrink small outline (SSOP20)

x shrink small outline, QSOP (SSOP20)

x thin shrink small outline (TSSOP20)

x depopulated heatsink very thin quad flat package, no leads (DHVQFN20)

s Latch-up protection exceeds 500 mA per JESD78

s ESD protection exceeds 2000 V HBM per JESD22-A114, 200 V MM per

JESD22-A115 and 1000 V CDM per JESD22-C101

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