Dual-Flash-Pin Electronics/Supervoltage Switch Matrix

The MAX9960 dual-flash-pin electronics/supervoltage switch matrix replaces most of the relays and switches commonly needed to connect system resources to each of two pins in a flash memory or SOC ATE system (Figure 1). The device provides seven switches per channel to select up to four independent sources: the pin electronics (PE), two parametric measurement units (PMUs) or other Kelvin analog resources, and a flash memory programming supervoltage (FVHH). The force-and-sense PMU switches are independently controlled, enabling their use to connect two non-Kelvin resources in place of each PMU or Kelvin resource. Each MAX9960 contains two complete seven-switch channels with fully independent controls.

The MAX9960 features signal path switches with wide 600MHz bandwidth, low 3Ω series resistance, and low 8pF shunt capacitance over a voltage range compatible with common pin electronics ICs. An on-chip voltage- doubling buffer with selectable 1x or 2x gain generates the flash supervoltage, allowing a 6.5V DAC reference input to generate up to a maximum of 13V for flash-memory programming levels.

When switching from the FVHH to PE or from PE to FVHH, the device-under-test (DUT) voltage behaves monotonically. Switching transitions between the PE and FVHH inputs are typically less than 350ns.

The MAX9960 operates over a commercial 0°C to +70°C temperature range, and is available in the 48-pin thin QFN package (7mm x 7mm x 0.8mm) with an exposed pad on the bottom for heat removal.

Applications

* Flash Memory Automatic Test Equipment * SOC Automatic Test Equipment