MAX14548E

The MAX14548E/MAX14548AE 16-channel, bidirectional level translators (LLTs) provide the level shifting necessary for 100Mbps data transfer in multivoltage systems. The MAX14548AE can drive capacitive loads up to 50pF with a guaranteed bit rate of 40Mbps when VL R 1.1V and PF is driven high. The devices feature a programming frequency input (PF) that adjusts the one-shot accelerator on-time to guarantee a bit rate of 100Mbps with a load capacitance < 15pF and VL > 1.1V (MAX14548E) or VL > 1.4V (MAX14548AE) when driven low. The MAX14548E can drive capacitive loads up to 50pF with a guaranteed bit rate of 40Mbps when VL R 1.1V and PF is driven high. The MAX14548AE output driver is designed to operate at full speed (100Mbps) with VL > 1.4V, which reduces the dynamic supply current vs. the MAX14548E. The state of I/O VCC_and I/O VL_are in high-impedance state during shutdown. The device operate at full speed with external drivers that source as low as 4mA output current. Each I/O channel is pulled up to VCC or VL by an internal 35FA current source, allowing both devices to be driven by either push-pull or open-drain drivers. The devices feature multiple power-saving features including an enable input (EN) that places the device into a low-power shutdown mode when driven low and an automatic shutdown mode that disables the part when VCC is less than VL. The devices operate with VCC voltages from +1.7V to +3.6V and VL voltages from +1.1V to +3.6V, making them ideal for data transfer between low-voltage ASICs/ PLDs and higher voltage systems. The devices are available in a 40-bump WLP (2.16mm x 3.46mm) package with 0.4mm ball pitch, and operate over the extended -40°C to +85°C temperature range. Externally applied voltages, VCC and VL, set the logic levels on either side of the device. Logic signals present on the VL side of the device appear as a high-voltage logic signal on the VCC side of the device and vice versa.

The features of MAX14548E can be summarized as (1)bidirectional level translation; (2)100Mbps guaranteed data rate; (3)+1.7V to +3.6V supply voltage range for VCC; (4)+1.1V to +3.6V supply voltage range for VL (VCC > VL); (5)-40°C to +85°C extended operating temperature range.

The absolute maximum ratings of MAX14548E are (1)VCC, VL, EN, PF: -0.3V to +4V; (2)I/O VCC_: -0.3V to (VCC + 0.3V); (3)I/O VL_: -0.3V to (VL + 0.3V); (4)short-circuit duration I/O VL_, I/O VCC_ to GND: Continuous; (5)continuous power dissipation (TA = +70°C) 40-Bump WLP (derate 17.2mW/°C above +70°C): 1379mW; (6)junction-to-ambient thermal resistance (BJA) (Note 1): 58°C/W; (7)operating temperature range: -40°C to +85°C; (8)storage temperature range: -65°C to +150°C; (9)junction temperature: +150°C; (10)soldering temperature (reflow): +260°C.