CY7C144-55JC Cypress Semiconductor Corp, CY7C144-55JC Datasheet - Page 7

• Manufacturer Part Number: CY7C144-55JC
• Description: IC SRAM 64KB DUAL 68-PLCC
• Manufacturer: Cypress Semiconductor Corp

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

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,
= 25C, 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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