CY7C144-55JC Cypress Semiconductor Corp, CY7C144-55JC Datasheet - Page 7
CY7C144-55JC
Manufacturer Part Number
CY7C144-55JC
Description
IC SRAM 64KB DUAL 68-PLCC
Manufacturer
Cypress Semiconductor Corp
Datasheet
1.CY7C144-55JC.pdf
(20 pages)
Specifications of CY7C144-55JC
Format - Memory
RAM
Memory Type
SRAM - Dual Port, Asynchronous
Memory Size
64K (8K x 8)
Speed
55ns
Interface
Parallel
Voltage - Supply
4.5 V ~ 5.5 V
Operating Temperature
0°C ~ 70°C
Package / Case
68-PLCC
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
CY7C144-55JC
Manufacturer:
Cypress Semiconductor Corp
Quantity:
10 000
Part Number:
CY7C144-55JC
Manufacturer:
CYPRESS/赛普拉斯
Quantity:
20 000
Electrical Characteristics
Over the Operating Range (continued)
Capacitance
Tested initially and after any design or process changes that may affect these parameters.
Document #: 38-06034 Rev. *F
V
V
V
V
I
I
I
I
I
I
I
C
C
IX
OZ
CC
SB1
SB2
SB3
SB4
Parameter
OH
OL
IH
IL
IN
OUT
OUTPUT
OUTPUT
C = 30 pF
(a) Normal Load (Load1)
Parameter
Load (Load 2)
Output HIGH Voltage
Output LOW Voltage
Input HIGH Voltage
Input LOW Voltage
Input Leakage Current
Output Leakage Current
Operating Current
Standby Current
(Both Ports TTL Levels)
Standby Current
(One Port TTL Level)
Standby Current
(Both Ports CMOS Levels)
Standby Current
(One Port CMOS Level)
Description
C = 30 pF
5V
Input Capacitance
Output Capacitance
R1 = 893
R2 = 347
Description
GND
3.0V
V
V
GND < V
Outputs Disabled, GND < V
V
Outputs Disabled
CE
f = f
CE
f = f
Both Ports
CE and CE
V
or V
One Port
CE
V
V
Port Outputs, f = f
Figure 4. AC Test Loads and Waveforms
CC
CC
CC
IN
IN
IN
3 ns
L
L
L
MAX
MAX
> V
> V
< 0.2V, Active
IN
= Min., I
= Min., I
= Max., I
and CE
or CE
or CE
OUTPUT
< 0.2V, f = 0
CC
CC
[7]
[7]
10%
I
C = 30pF
(b) Th évenin Equivalent (Load 1)
< V
R
– 0.2V
R
– 0.2V or
R
R
> V
> V
OH
OL
Test Conditions
> V
OUT
CC
> V
ALL INPUT PULSES
= 4.0 mA
IH
CC
= 4.0 mA
CC
T
V
90%
IH
,
MAX
= 0 mA
A
CC
[7]
– 0.2V,
,
– 0.2V,
= 25C, f = 1 MHz,
[7]
R
= 5.0V
TH
Test Conditions
= 250
O
< V
Commercial
Industrial
Commercial
Industrial
Commercial
Industrial
Commercial
Industrial
Commercial
Industrial
CC
V
90%
TH
10%
= 1.4V
3 ns
Min
10
10
2.4
2.2
7C144-35
7C145-35
OUTPUT
C = 5 pF
(c) Three-State Delay (Load 3)
CY7C144, CY7C145
Max
+10
+10
180
100
160
100
110
0.4
0.8
30
40
15
30
90
Max.
10
15
Min
10
10
2.4
2.2
7C144-55
7C145-55
5V
Max
+10
+10
160
180
100
110
100
0.4
0.8
30
40
15
30
90
Page 7 of 20
R1 = 893
R = 347
Unit
pF
pF
Unit
mA
mA
mA
mA
mA
A
A
V
V
V
V
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