Cypress CY7C1345G - Manual (Page 11)

CY7C1345G
Document Number: 38-05517 Rev. *E Page 11 of 20
Capacitance
Tested initially and after any design or process change that may affect these parameters.
Parameter Description Test Conditions
100 TQFP
Max
119 BGA
Max
Unit
C
IN
Input Capacitance T
A
= 25 °C, f = 1 MHz,
V
DD
= 3.3V.
V
DDQ
= 3.3V
5 5 pF
C
CLK
Clock Input Capacitance 5 5 pF
C
IO
Input or Output Capacitance 5 7 pF
Thermal Resistance
Tested initially and after any design or process change that may affect these parameters.
Parameter Description Test Conditions
100 TQFP
Package
119 BGA
Package
Unit
Θ
JA
Thermal Resistance
(Junction to Ambient)
Test conditions follow
standard test methods and
procedures for measuring
thermal impedance, per
EIA/JESD51.
30.32 34.1 °C/W
Θ
JC
Thermal Resistance
(Junction to Case)
6.85 14.0 °C/W
AC Test Loads and Waveforms
OUTPUT
R = 317 Ω
R = 351 Ω
5 pF
INCLUDING
JIG AND
SCOPE
(a) (b)
OUTPUT
R
L
= 50 Ω
Z
0
= 50 Ω
V
T
= 1.5V
3.3V
ALL INPUT PULSES
V
DDQ
GND
90%
10%
90%
10%
≤ 1ns ≤ 1ns
(c)
OUTPUT
R = 1667 Ω
R = 1538 Ω
5 pF
INCLUDING
JIG AND
SCOPE (a) (b)
OUTPUT
R
L
= 50 Ω
Z
0
= 50 Ω
V
T
= 1.25V
2.5V
ALL INPUT PULSES
V
DDQ
GND
90%
10%
90%
10%
≤ 1 ns ≤ 1 ns
(c)
3.3V I/O Test Load
2.5V I/O Test Load