CY7C4245V-25ASC Cypress Semiconductor Corp, CY7C4245V-25ASC Datasheet - Page 11

• Manufacturer Part Number: CY7C4245V-25ASC
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C4245V-25ASC

• Configuration: Dual
• Density: 64Kb
• Access Time (max): 15ns
• Word Size: 18b
• Organization: 4Kx18
• Sync/async: Synchronous
• Expandable: Yes
• Bus Direction: Uni-Directional
• Package Type: TQFP
• Clock Freq (max): 40MHz
• Operating Supply Voltage (typ): 3.3V
• Operating Supply Voltage (min): 3V
• Operating Supply Voltage (max): 3.6V
• Supply Current: 30mA
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 64
• Lead Free Status / RoHS Status: Not Compliant

Switching Characteristics
Document #: 38-06029 Rev. *D
Equivalent to:
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
Notes
S
A
CLK
CLKH
CLKL
DS
DH
ENS
ENH
RS
RSR
RSF
PRT
RTR
OLZ
OE
OHZ
WFF
REF
PAFasynch
PAFsynch
PAEasynch
PAEsynch
HF
9. C
10. C
11. Pulse widths less than minimum values are not allowed.
12. Values guaranteed by design, not currently tested.
13. t
Parameter
PAFasynch
L
L
= 30 pF for all AC parameters except for t
= 5 pF for t
, t
PAEasynch
OHZ
OUTPUT
Clock Cycle Frequency
Data Access Time
Clock Cycle Time
Clock HIGH Time
Clock LOW Time.
Data Set-up Time
Data Hold Time
Enable Set-up Time
Enable Hold Time
Reset Pulse Width
Reset Recovery Time
Reset to Flag and Output Time
Retransmit Pulse Width
Retransmit Recovery Time
Output Enable to Output in Low Z
Output Enable to Output Valid
Output Enable to Output in High Z
Write Clock to Full Flag
Read Clock to Empty Flag
Clock to Programmable Almost-Full Flag
Clock to Programmable Almost-Full Flag
Clock to Programmable Almost-Empty Flag
Clock to Programmable Almost-Full Flag
Clock to Half-Full Flag
OUTPUT
(Asynchronous mode, V
(Asynchronous mode, V
(Synchronous mode, V
(Synchronous mode, V
THÉVENIN EQUIVALENT
.
3.3V
, after program register write will not be valid until 5 ns + t
INCLUDING
JIG AND
SCOPE
C
L
Rth = 200Ω
R1 = 330Ω
[11]
Description
Over the Operating Range
CC
Figure 4. AC Test Loads and Waveforms
CC
CC
CC
OHZ
/SMODE tied to V
/SMODE tied to V
/SMODE tied to V
R2 = 510Ω
/SMODE tied to V
.
Vth = 2.0V
[12]
[12]
[13]
CC
[13]
)
SS
SS
CC
)
)
)
PAF(E)
.
GND
3.0V
7C42X5V-15
Min
≤ 3 ns
15
15
10
15
15
2
6
6
4
1
4
1
0
3
3
Max
66.7
18
18
18
16
11
11
11
11
11
8
8
[9, 10]
ALL INPUT PULSES
10%
90%
7C42X5V-25
Min
25
10
10
25
15
25
25
2
6
2
6
2
0
3
3
Max
40
15
25
12
12
15
15
22
15
22
15
20
CY7C4225V/4215V
CY7C4235V/4245V
7C42X5V-35
90%
Min
35
14
14
35
20
35
35
2
7
2
7
2
0
3
3
10%
≤ 3 ns
Max
28.6
20
35
15
15
20
20
25
20
25
20
25
Page 11 of 23
Unit
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
[+] Feedback
[+] Feedback