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Reliability Report

	Outline-QFN24 3.5×5.5.pdf
	Land Pattern-QFN24 3.5×5.5.pdf

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Key Specifications

Part Number	Description	Status	VCCA(Min)(V)	VCCA(Max)(V)	VCCB(Min)(V)	VCCB(Max)(V)	Max Data Rate(Mbps)	No. of Bits	Operating Temperature Range(℃)	Pin/Package	EV Kit Available?
UM3608QA	8-Bit Dual-Supply Bus Transceiver With Configurable Voltage Translation and 3-State Outputs	ACTIVE	1.65	5.5	1.65	5.5	220	8	-40 to 85	24/QFN 3.5×5.5	Y

View All>> Product Description

UM3608 are octal bus transceivers that utilize deep micron CMOS Technology are intended for bus oriented application. This 8-bit non-inverting bus transceiver uses two separate configurable power-supply rails to implement universal low voltage bidirectional translation between any of the 1.8V,2.5V,3.3V and 5.5V voltage nodes. The UM3608 is optimized to operate with V_CCA and V_CCB set at 1.65V to 5.5V. The A port is designed to track V_CCA. V_CCA accepts any supply voltage from 1.65V to 5.5V. The B port is designed to track V_CCB. V_CCB accepts any supply voltage from 1.65V to 5.5 V.

The UM3608 is designed for asynchronous communication between two data buses. The logic levels of the direction-control (DIR) input and the output-enable (OE) input activate either the B-port outputs or the A-port outputs or place both output ports into the high-impedance mode. The device transmits data from the A bus to the B bus when the B-port outputs are activated, and from the B bus to the A bus when the A-port outputs are activated. The input circuitry on both A and B ports must have a logic HIGH or LOW level applied to prevent excess I_CC and I_CCZ.
UM3608 is fully specified for partial power down applications using I_off. The I_off circuitry disables the outputs, preventing damaging the current back flow through the device when it is powered down. The V_CC isolation feature ensures that if either V_CC Input is at GND, all outputs are in the high impedance state. To ensure the high impedance state during power up or power down. OE should be tied to V_CC through a pull up resistor. The UM3608 is designed so that the control pins (DIR and OE) are supplied by V_CCA.

Features

- Control Inputs VIH/VIL Levels Are Referenced to VCCA Voltage
- VCC Isolation Feature – If Either VCC Input Is at GND, All Are in the High-Impedance State
- Fully Configurable Dual-Rail Design Allows Each Port to Operate Over the Full 1.65V to 5.5V Power-Supply Range
- Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
- ESD Protection Exceeds JESD22
4000V Human-Body Model (A114-A)
100V Machine Model (A115-A)
1000V Charged-Device Model (C101)
- Available in SSOP24 Packages