Cypress CY7C1292DV18 - Manual (Page 18)

CY7C1292DV18
CY7C1294DV18
Document #: 001-00350 Rev. *A Page 18 of 23
Note:
22. Unless otherwise noted, test conditions assume signal transition time of 2V/ns, timing reference levels of 0.75V, Vref = 0.75V, RQ = 250 Ω, V
DDQ
= 1.5V, input
pulse levels of 0.25V to 1.25V, and output loading of the specified I
OL
/I
OH
and load capacitance shown in (a) of AC Test Loads.
Thermal Resistance [21]
Parameter Description Test Conditions 165 FBGA Unit
Θ
JA
Thermal Resistance (Junction to Ambient) Test conditions follow standard test
methods and procedures for measuring
thermal impedance, per EIA/JESD51.
28.51
°C/W
Θ
JC
Thermal Resistance (Junction to Case) 5.91
°C/W
AC Test Loads and Waveforms
1.25V
0.25V
R = 50 Ω
5 pF
ALL INPUT PULSES
Device R
L
= 50
Ω
Z
0
= 50
Ω
V
REF
= 0.75V
V
REF
= 0.75V
[22]
0.75V Under
Test
0.75V
Device
Under
Test
OUTPUT
0.75V V
REF
V
REF
OUTPUT
ZQ
ZQ
(a)
Slew Rate = 2 V/ns
RQ =
250
Ω
(b)
RQ =
250
Ω
[+] Feedback