CY7C024-55JXC Cypress Semiconductor Corp, CY7C024-55JXC Datasheet - Page 6

• Manufacturer Part Number: CY7C024-55JXC
• Description: IC SRAM 64KBIT 55NS 84PLCC
• Manufacturer: Cypress Semiconductor Corp
• Type: Asynchronousr

Specifications of CY7C024-55JXC

• Memory Size: 64K (4K x 16)
• Package / Case: 84-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: 230 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

Table 3. Semaphore Operation Example
Notes
Document #: 38-06035 Rev. *D
No action
Left port writes 0 to semaphore
Right port writes 0 to semaphore
Left port writes 1 to semaphore
Left port writes 0 to semaphore
Right port writes 1 to semaphore
Left port writes 1 to semaphore
Right port writes 0 to semaphore
Right port writes 1 to semaphore
Left port writes 0 to semaphore
Left port writes 1 to semaphore
7. A
8. If BUSY
9. If BUSY
0L–12L
and A
R
L
=L, then no change.
=L, then no change.
Function
0R–12R
, 1FFF/1FFE for the CY7C025.
I/O
0
–I/O
Left
1
0
0
1
1
0
1
1
1
0
1
15/17
I/O
0
Right
–I/O
1
1
1
0
0
1
1
0
1
1
1
15/17
Semaphore-free
Left Port has semaphore token
No change. Right side has no write access to semaphore.
Right port obtains semaphore token
No change. Left port has no write access to semaphore
Left port obtains semaphore token
Semaphore-free
Right port has semaphore token
Semaphore-free
Left port has semaphore token
Semaphore-free
Status
CY7C024/024A/0241
CY7C025/0251
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