Data retention and endurance, Capacitance, Thermal resistance – Cypress CY14B256K User Manual
Page 16: Ac test conditions
CY14B256K
Document Number: 001-06431 Rev. *H
Page 16 of 28
Data Retention and Endurance
Parameter
Description
Min
Unit
DATA
R
Data Retention
20
Years
NV
C
Nonvolatile STORE Operations
200
K
Capacitance
These parameters are guaranteed but not tested.
Parameter
Description
Test Conditions
Max
Unit
C
IN
Input Capacitance
T
A
= 25
°C, f = 1 MHz,
V
CC
= 0 to 3.0 V
7
pF
C
OUT
Output Capacitance
7
pF
Thermal Resistance
These parameters are guaranteed but not tested.
Parameter
Description
Test Conditions
48-SSOP
Unit
Θ
JA
Thermal Resistance
(Junction to Ambient)
Test conditions follow standard test methods and
procedures for measuring thermal impedance, in
accordance with EIA / JESD51.
32.9
°C/W
Θ
JC
Thermal Resistance
(Junction to Case)
25.56
°C/W
Figure 7. AC Test Loads
AC Test Conditions
3.0V
Output
5 pF
R1 577
Ω
R2
789
Ω
3.0V
Output
30 pF
R1 577
Ω
R2
789
Ω
For Tri-state Specs
Input Pulse Levels ..................................................0 V to 3 V
Input Rise and Fall Times (10% - 90%) ........................ <5 ns
Input and Output Timing Reference Levels ................... 1.5 V