Lattice Semiconductor announced two small footprint packages for its ispMACH 4000ZE CPLDs (complex programmable logic devices). The family is available in a 64-ball ucBGA (ultra chip scale BGA) package with a 4mm by 4mm footprint, and the ispMACH 4128 device is available in a 132-ball ucBGA package with a 6mm by 6mm footprint. The ispMACH 4000ZE family is ideal for low power, high volume portable applications, with typical standby current as low as 10µA. The devices operate from a nominal 1.8-volt power supply with operation extended down to 1.6-volts. The family offers system features such as Power Guard dynamic power reduction; per pin pull-up, pull-down or bus keeper control; an on-chip user oscillator and timer; and input hysteresis.

The Power Guard feature lowers power consumption by selectively disabling unused input pins so their switching does not consume dynamic power needlessly. The devices’ 5-volt tolerant I/Os may be used for connecting to TTL and PCI interfaces with no external components. The ispMACH 4000ZE have two I/O banks, each with its own power supply voltage that can be set at the appropriate level to support LVTTL and LVCMOS 3.3, 2.5, 1.8 and 1.5-volt outputs. The device input buffers have programmable thresholds that support the above standards independent of the I/O bank voltage. Extended range 3.3-volt I/O current is supported, instead of the more common narrow range version. The ispMACH 4000ZE family also offers "always on" input hysteresis for each pin. This feature provides improved noise immunity for 3.3V and 2.5V inputs.

An internal oscillator also is provided for use in miscellaneous housekeeping functions such as watchdog “heartbeat” functions, digital de-glitch circuits and control state machines. The family is supported by Lattice’s ispLEVER Classic design tool suite, which is available for free download from www.latticesemi.com. The ispLEVER Classic design software includes all the tools necessary to take a project from concept to programmed device: project management; HDL, ABEL, and schematic design entry; module integration; fitting; timing analysis; and programming.

Pricing and Availability

Both the ispMACH 4064ZE device in the 64-ball ucBGA package and the ispMACH 4128ZE device in the 132-ball ucBGA package are now released for volume production and are immediately available. The rest of the packages in this product family are also shipping in volume. All ispMACH 4000ZE family package options are Pb-free and RoHS compliant. Pricing for the ispMACH 4064ZE device and the ispMACH 4128ZE device in their new packages is as low as $0.85 and $1.60, respectively, in the high-volume typically associated with handheld equipment.