DSM2190F4 查看數據表（PDF） - STMicroelectronics

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DSM2190F4

DSM (Digital Signal Processor System Memory) For Analog Devices ADSP-2191 DSPs (3.3V Supply)

STMicroelectronics 

DSM2190F4

DC AND AC PARAMETERS

This section summarizes the operating and mea-

surement conditions, and the DC and AC charac-

teristics of the device. The parameters in the DC

and AC Characteristic tables that follow are de-

rived from tests performed under the Measure-

ment Conditions summarized in the relevant

tables. Designers should check that the operating

conditions in their circuit match the measurement

conditions when relying on the quoted parame-

ters.

Table 22. Operating Conditions

Symbol

Parameter

VCC

Supply Voltage

TA

Ambient Operating Temperature (industrial)

Min.

Max.

Unit

3.0

3.6

V

–40

85

°C

Table 23. AC Measurement Conditions

Symbol

Parameter

CL

Load Capacitance

Input Rise and Fall Times

Input Pulse Voltages

Input and Output Timing Reference Voltages

Note: 1. Output Hi-Z is defined as the point where data out is no longer driven.

Min.

Max.

30

5

1.5

1.5

Unit

pF

ns

V

V

Figure 26. AC Measurement I/O Waveform

Figure 27. AC Measurement Load Circuit

0.9VCC

0V

Test Point

1.5V

AI04947

Device

Under Test

2.0 V

400 Ω

CL = 30 pF

(Including Scope and

Jig Capacitance)

AI04948

Table 24. Capacitance

Symbol

Parameter

Test Condition

CIN

Input Capacitance (for input

pins)

VIN = 0V

COUT

Output Capacitance (for input/

output pins)

VOUT = 0V

CVPP

Capacitance (for CNTL2/VPP)

VPP = 0V

Note: 1. Sampled only, not 100% tested.

2. Typical values are for TA = 25°C and nominal supply voltages.

Typ.2

Max.

Unit

4

6

pF

8

12

pF

18

25

pF

44/61

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