CY7C4245-25AC Cypress Semiconductor Corp, CY7C4245-25AC Datasheet - Page 5
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CY7C4245-25AC
Manufacturer Part Number
CY7C4245-25AC
Description
Manufacturer
Cypress Semiconductor Corp
Datasheet
1.CY7C4245-25AC.pdf
(25 pages)
Specifications of CY7C4245-25AC
Density
64Kb
Word Size
18b
Sync/async
Synchronous
Expandable
Yes
Package Type
TQFP
Operating Supply Voltage (typ)
5V
Operating Supply Voltage (min)
4.5V
Operating Supply Voltage (max)
5.5V
Operating Temp Range
0C to 70C
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Pin Count
64
Lead Free Status / Rohs Status
Not Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
CY7C4245-25AC
Manufacturer:
CY
Quantity:
3 620
Company:
Part Number:
CY7C4245-25AC
Manufacturer:
CYPRESS
Quantity:
1 476
Capacitance
AC Test Loads and Waveforms
Notes:
Switching Characteristics
Equivalent to:
7.
8.
9.
C
C
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
Parameter
S
A
CLK
CLKH
CLKL
DS
DH
ENS
ENH
RS
RSR
RSF
PRT
RTR
OLZ
OE
OHZ
WFF
REF
PAFasynch
IN
OUT
Tested initially and after any design or process changes that may affect these parameters.
C
C
L
L
= 30 pF for all AC parameters except for t
= 5 pF for t
Parameter
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
(Asynchronous mode, V
OUTPUT
OHZ
[7]
OUTPUT
.
THÉ EVENIN
INCLUDING
5V
JIG AND
SCOPE
Input Capacitance
Output Capacitance
C
L
EQUIVALENT
Description
410
[10]
R11.1K
Over the Operating Range
Description
CC
[8, 9]
OHZ
/SMODE tied to V
R2
680
.
1.91V
42X5–4
[11]
[12]
[12]
T
V
CC
A
CC
)
= 25 C, f = 1 MHz,
5
= 5.0V
Min.
7C42X5-10
4.5
4.5
0.5
0.5
10
10
12
12
Test Conditions
2
3
3
8
0
3
3
GND
3.0V
Max.
100
10
12
8
7
7
8
8
< 3 ns
7C42X5-15
Min.
15
15
10
15
15
2
6
6
4
1
4
1
0
3
3
ALL INPUT PULSES
10%
Max.
66.7
10
15
10
10
16
8
8
90%
CY7C4425/4205/4215
CY7C4225/4235/4245
Min. Max.
7C42X5-25
25
10
10
25
15
25
25
2
6
1
6
1
0
3
3
Max.
5
7
40
15
25
12
12
15
15
20
90%
Min.
7C42X5-35
10%
35
14
14
35
20
35
35
2
7
2
7
2
0
3
3
< 3 ns
Max. Unit
28.6
42X5–5
20
35
15
15
20
20
25
Unit
pF
pF
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns