Cypress Semiconductor Perform STK14D88 Manual do Utilizador descarregar pdf (Página 9)

CY14B256L

Document Number: 001-06422 Rev. *I Page 9 of 19

Capacitance

In the following table, the capacitance parameters are listed.

[5]

Parameter Description Test Conditions Max Unit

Input Capacitance T

= 25°C, f = 1 MHz,

= 0 to 3.0V

7pF

OUT

Output Capacitance 7 pF

Thermal Resistance

In the following table, the thermal resistance parameters are listed.

[5]

Parameter Description Test Conditions 32-SOIC 48-SSOP Unit

Thermal Resistance

(Junction to Ambient)

Test conditions follow standard test methods and

procedures for measuring thermal impedance, per

EIA / JESD51.

42.36 44.26 °C/W

Thermal Resistance

(Junction to Case)

21.41 25.56 °C/W

Figure 4. AC Test Loads

AC Test Conditions

3.0V

Output

30 pF

R1 577Ω

789Ω

3.0V

Output

5 pF

R1 577

789

For Tri-state Specs

Input Pulse Levels....................................................0V to 3V

Input Rise and Fall Times (10% - 90%)........................ <

5 ns

Input and Output Timing Reference Levels.................... 1.5V

Note

5. These parameters are guaranteed by design and are not tested.

Not Recommended for New Designs

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