CY7C1297A View Datasheet(PDF) - Cypress Semiconductor
Part Name
Description
Manufacturer
CY7C1297A Datasheet PDF : 13 Pages
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CY7C1297A/
GVT7164B18
Thermal Resistance
Description
Thermal Resistance (Junction to Ambient)
Thermal Resistance (Junction to Case)
Test Conditions
Still Air, soldered on a 4.25 x 1.125 inch,
four-layer PCB
Symbol
ΘJA
ΘJC
TQFP Typ.
20
91
Unit
°C/W
°C/W
AC Test Loads and Waveforms[21]
DQ
Z0 = 50Ω
50Ω
Vt = 1.5V
30 pF DQ
351Ω
+3.3V
317Ω
5 pF
3.0V
10%
0V
≤ 1.5 ns
ALL INPUT PULSES
90%
90%
10%
≤ 1.5 ns
tPU = 200us
Vcctyp
V c c m in
For proper RESET
bring Vcc down to 0V
(a)
(b)
Capacitance Derating[22]
Description
Clock to Output Valid
Symbol
∆ tKQ
Switching Characteristics Over the Operating Range[23]
Parameter
Description
Clock
tKC
tKH
tKL
Output Times
Clock Cycle Time
Clock HIGH Time
Clock LOW Time
tKQ
tKQX
tKQLZ
tKQHZ
tOEQ
tOELZ
tOEHZ
Set-up Times
tS
Hold Times
tH
Clock to Output Valid
Clock to Output Invalid
Clock to Output in Low-Z[24, 25]
Clock to Output in High-Z[24, 25]
OE to Output Valid[26]
OE to Output in Low-Z[24, 25]
OE to Output in High-Z[24, 25]
Address, Controls, and Data In[27]
Address, Controls, and Data In[27]
(c)
(d)
Typ.
0.016
Max.
Unit
ns / pF
66 MHz
-9
50 MHz
-10
50 MHz
-12
Min. Max. Min. Max. Min. Max. Unit
15
15
20
ns
4
5
6
ns
4
5
6
ns
9
10
12 ns
3
3
3
ns
3
3
3
ns
5
5
6
ns
5
5
6
ns
0
0
0
ns
5
5
6
ns
2.5
2.5
3
ns
0.5
0.5
0.5
ns
Document #: 38-05204 Rev. *A
Page 7 of 13
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