Product Descriptions

The Lattice ispPAC-POWR1208 incorporates both insystem programmable logic and in-system programmable analog circuits to perform special functions for power supply sequencing and monitoring. The ispPACPOWR1208 device has the capability to be configured through software to control up to eight outputs for power supply sequencing and 12 comparators monitoring supply voltage limits, along with four digital inputs for interfacing to other control circuits or digital logic. Once configured, the design is downloaded into the device through a standard JTAG interface. The circuit configuration and routing are stored in non-volatile E2 CMOS. PAC-Designer,® an easy-to-use Windows-compatible software package gives users the ability to design the logic and sequences that control the power supplies or FET driver circuits. The user has control over timing functions, programmable logic functions and comparator threshold values as well as I/O configurations.

Product Features

■ Monitor and Control Multiple Power Supplies

• Simultaneously monitors up to 12 power supplies

• Sequence controller for power-up conditions

• Provides eight output control signals

• Programmable digital and analog circuitry

■ Embedded PLD for Sequence Control

• Implements state machine and input conditional events

• In-System Programmable (ISP™) through JTAG and on-chip E2 CMOS®

■ Embedded Programmable Timers

• 4 Programmable 8-bit timers (32µs to 524ms)

• Programmable time delay between multiple power supply ramp-up and wait statements

■ Analog Comparators for Monitoring

• 12 analog comparators for monitoring

• 192 precise programmable threshold levels spanning 1.03V to 5.72V

• Each comparator can be independently configured around standard logic supply voltages of 1.2V, 1.5V, 1.8V, 2.5V, 3.3V, 5V

• Other user-defined voltages possible

• Eight direct comparator outputs

■ Embedded Oscillator

• Built-in clock generator, 250kHz

• Programmable clock frequency

• Programmable timer pre-scaler

• External clock support

■ Programmable Output Configurations

• Four digital outputs for logic and power supply control

• Four fully programmable gate driver outputs for FET control, or programmable as four additional digital outputs

• Expandable with ispMACH™ 4000 CPLD

■ 2.25V to 5.5V Supply Range

• In-system programmable at 3.0V to 5.5V

• Industrial temperature range: -40°C to +85°C

• Automotive temperature range: -40°C to +125°C

• 44-pin TQFP package

• Lead-free package option

Product Specification

Product Photos

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