PSD511B1 datasheet(113/153 Pages) STMICROELECTRONICS

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PSD5XX Family

110

100

120

010

PT100%

PT25%

COMPOSITE FREQUENCY AT PLD INPUTS (MHz)

TURBO

OFF

TURBO

OFF

Figure 50. ZPLD Typical ICC / Frequency Consumption (5 V)

Specifications

(cont.)

13.4 AC/DC Parameters

The following tables describe the AC/DC parameters of the PSD5XX family:

t DC Electrical Specification

t AC Timing Specification

• ZPLD Timing

– Combinatorial Delays

– Synchronous Clock Mode

– Asynchronous Clock Mode

• Microcontroller Timing

– Read Timing

– Write Timing

– Peripheral Mode Timing

– Power Down and Reset Timing

• PSD5XX Specific Timings

– Counter/Timer Timing

– Interrupt Controller Timing

Following are some issues concerning the parameters presented:

t In the DC specification, the Supply Current is given for different modes of operation.

Before calculating the total power consumption, determine the percentage of time that

the PSD5XX is in each mode. Also the current is considerably different if the

ZPLD_TURBO bit is "OFF" and EPROM_CMISER is "ON".

t The AC power component provides the ZPLD, EPROM, SRAM and TIMER mA/MHz

specification. Figure 50 shows the ZPLD mA/MHz as a function of the number

of Product Terms (PT) used.

t In the ZPLD timing parameters add the required delay when ZPLD_TURBO is "OFF".

t In the MCU timing specification, add the required time delay when EPROM_CMISER

is "ON".

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