CY7C144-55JXC Cypress Semiconductor Corp, CY7C144-55JXC Datasheet - Page 8

• Manufacturer Part Number: CY7C144-55JXC
• Description: IC SRAM 64KBIT 55NS 68PLCC
• Manufacturer: Cypress Semiconductor Corp
• Type: Asynchronousr

Specifications of CY7C144-55JXC

• Memory Size: 64K (8K x 8)
• Package / Case: 68-PLCC
• Format - Memory: RAM
• Memory Type: SRAM - Dual Port, Asynchronous
• Speed: 55ns
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Access Time: 55 ns
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 4.5 V
• Maximum Operating Current: 160 mA
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• Number Of Ports: 2
• Operating Supply Voltage: 5 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 428-2155; CY7C144-55JXC

Electrical Characteristics
Over the Operating Range (continued)
Capacitance
Tested initially and after any design or process changes that may affect these parameters.
Note
Document #: 38-06034 Rev. *H
V
V
V
V
I
I
I
I
I
I
I
C
C
6. f
IX
OZ
CC
SB1
SB2
SB3
SB4
OH
OL
IH
IL
IN
OUT
Parameter
Parameter
Output
Output
MAX
C = 30 pF
= 1/t
(a) Normal Load (Load1)
RC
Load (Load 2)
= All inputs cycling at f = 1/t
Input capacitance
Output capacitance
Output HIGH voltage
Output LOW voltage
Input HIGH voltage
Input LOW voltage
Input leakage vurrent
Output leakage current Outputs disabled, GND < V
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)
C = 30 pF
Description
Description
5 V
R1 = 893 
R2 = 347 
RC
(except output enable). f = 0 means no address or control lines change. This applies only to inputs at CMOS level standby I
GND < V
V
T
V
V
V
Outputs disabled
CE
f = f
CE
f = f
Both ports
CE and CE
V
One port
CE
V
V
GND
3.0 V
A
CC
CC
CC
IN
IN
IN
CC
Figure 4. AC Test Loads and Waveforms
= 25 C, f = 1 MHz,
L
L
L
MAX
MAX
> V
> V
< 0.2 V, Active Port outputs, f = f
 3 ns
= Min., I
= Min., I
= Max., I
and CE
or CE
or CE
= 5.0 V
CC
CC
Output
[6]
[6]
I
10%
< V
R
– 0.2 V or V
R
– 0.2 V or
C = 30pF
R
(b) Th évenin Equivalent (Load 1)
R
> V
> V
Test Conditions
OH
OL
> V
OUT
CC
> V
= 4.0 mA
IH
CC
= 4.0 mA
CC
All Input Pulses
IH
,
= 0 mA
90%
– 0.2 V,
,
– 0.2 V,
Test Conditions
IN
R
TH
< 0.2 V, f = 0
= 250 
O
< V
CC
V
MAX
90%
TH
[6]
10%
= 1.4 V
[6]
 3 ns
Commercial
Industrial
Commercial
Industrial
Commercial
Industrial
Commercial
Industrial
Commercial
Industrial
Output
C = 5 pF
Max
(c) Three-State Delay (Load 3)
10
15
CY7C144 CY7C145
Min
10
10
2.4
2.2












7C144-55
Max
+10
+10
160
180
100
110
100
0.4
0.8
5 V
30
40
15
30
90


Page 8 of 23
R1 = 893 
R = 347 
Unit
pF
pF
Unit
mA
mA
mA
mA
mA
A
A
V
V
V
V


SB3
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