Cypress CY14B256L - Manual (Page 8)

CY14B256L
Document Number: 001-06422 Rev. *H Page 8 of 18
Capacitance
In the following table, the capacitance parameters are listed.
[5]
Parameter Description Test Conditions Max Unit
C
IN
Input Capacitance T
A
= 25
°C, f = 1 MHz,
V
CC
= 0 to 3.0V
7 pF
C
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
Θ
JA
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
Θ
JC
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 577
Ω
R2
789
Ω
3.0V
Output
5 pF
R1 577
Ω
R2
789
Ω
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.
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