Cypress Semiconductor CY7C1339G Ficha de especificações - Página 9
Procurar online ou descarregar pdf Ficha de especificações para Hardware informático Cypress Semiconductor CY7C1339G. Cypress Semiconductor CY7C1339G 18 páginas. Cypress 4-mbit (128k x 32) pipelined sync sram specification sheet
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Electrical Characteristics
Parameter
Description
I
Automatic CE
SB3
Power-down
Current—CMOS Inputs
I
Automatic CE
SB4
Power-down
Current—TTL Inputs
[11]
Capacitance
Parameter
C
Input Capacitance
IN
C
Clock Input Capacitance
CLK
C
Input/Output Capacitance
I/O
[11]
Thermal Resistance
Parameter
Description
Θ
Thermal Resistance
JA
(Junction to Ambient)
Θ
Thermal Resistance
JC
(Junction to Case)
AC Test Loads and Waveforms
3.3V I/O Test Load
OUTPUT
Z
= 50Ω
0
V
= 1.5V
T
(a)
2.5V I/O Test Load
2.5V I/O Test Load
OUTPUT
OUTPUT
Z
Z
= 50Ω
= 50Ω
0
0
V
V
= 1.25V
= 1.25V
T
T
(a)
(a)
Note:
11. Tested initially and after any design or process change that may affect these parameters.
Document #: 38-05520 Rev. *F
[9, 10]
Over the Operating Range
Test Conditions
V
= Max, Device Deselected, or
DD
≤ 0.3V or V
V
> V
IN
IN
DDQ
f = f
= 1/t
MAX
CYC
V
= Max, Device Deselected,
DD
≥ V
≤ V
V
or V
, f = 0
IN
IH
IN
IL
Description
T
A
Test conditions follow standard test
methods and procedures for
measuring thermal impedance, per
EIA/JESD51
R = 317Ω
3.3V
OUTPUT
= 50Ω
R
L
5 pF
INCLUDING
JIG AND
SCOPE
(b)
R = 1667Ω
R = 1667Ω
2.5V
2.5V
OUTPUT
OUTPUT
R
R
= 50Ω
= 50Ω
L
L
5 pF
5 pF
INCLUDING
INCLUDING
JIG AND
JIG AND
(b)
(b)
SCOPE
SCOPE
(continued)
4-ns cycle, 250 MHz
– 0.3V
5-ns cycle, 200 MHz
6-ns cycle, 166 MHz
7.5-ns cycle, 133 MHz
All Speeds
Test Conditions
= 25°C, f = 1 MHz,
V
= 3.3V.
DD
V
= 3.3V
DDQ
Test Conditions
V
DDQ
10%
GND
R = 351Ω
≤ 1 ns
V
V
DDQ
DDQ
10%
10%
GND
GND
R = 1538Ω
R = 1538Ω
≤ 1 ns
≤ 1 ns
CY7C1339G
Min.
Max.
105
95
85
75
45
TQFP
BGA
Package
Package
5
5
5
5
5
7
TQFP
BGA
Package
Package
°C/W
30.32
34.1
°C/W
6.85
14.0
ALL INPUT PULSES
90%
90%
10%
≤ 1 ns
(c)
ALL INPUT PULSES
ALL INPUT PULSES
90%
90%
90%
90%
10%
10%
≤ 1 ns
≤ 1 ns
(c)
(c)
Page 9 of 18
Unit
mA
mA
mA
mA
mA
Unit
pF
pF
pF
Unit
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