PSD4235G1-C-70UI View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

PSD4235G1-C-70UI

Flash In-System Programmable ISP Peripherals For 16-bit MCUs 5V Supply

STMicroelectronics 

PSD9XX Family

AC/DC

Parameters

PSD935G2 Beta Information

The following tables describe the AD/DC parameters of the PSD9XX family:

t DC Electrical Specification

t AC Timing Specification

• PLD Timing

– Combinatorial Timing

• Microcontroller Timing

– Read Timing

– Write Timing

– Power Down and Reset Timing

Following are 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 PSD9XX is in each mode. Also, the supply power is considerably different if the

Turbo bit is "OFF".

t The AC power component gives the PLD, Flash memory, and SRAM mA/MHz

specification. Figures 27 and 27a show the PLD mA/MHz as a function of the number

of Product Terms (PT) used.

t In the PLD timing parameters, add the required delay when Turbo bit is "OFF".

Figure 27. PLD ICC /FrequencyConsumption (VCC = 5 V ± 10%)

110

100

90

80

VCC = 5V

TURBO

ON (100%)

70

60

50

TURBO ON (25%)

40

30

20

10

TURBO OFF

PT 100%

PT 25%

0

0

5

10

15

20

25

HIGHEST COMPOSITE FREQUENCY AT PLD INPUTS (MHz)

64

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