CY7C024-55AC Cypress Semiconductor Corp, CY7C024-55AC Datasheet - Page 6
CY7C024-55AC
Manufacturer Part Number
CY7C024-55AC
Description
IC,SRAM,4KX16,CMOS,QFP,100PIN,PLASTIC
Manufacturer
Cypress Semiconductor Corp
Datasheet
1.CY7C024-55AXC.pdf
(21 pages)
Specifications of CY7C024-55AC
Format - Memory
RAM
Memory Type
SRAM - Dual Port, Asynchronous
Memory Size
64K (4K x 16)
Speed
55ns
Interface
Parallel
Voltage - Supply
4.5 V ~ 5.5 V
Operating Temperature
0°C ~ 70°C
Package / Case
100-LQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
CY7C024-55AC
Manufacturer:
CY
Quantity:
1 720
Company:
Part Number:
CY7C024-55AC
Manufacturer:
CY30
Quantity:
291
Company:
Part Number:
CY7C024-55AC
Manufacturer:
Cypress Semiconductor Corp
Quantity:
10 000
Part Number:
CY7C024-55AC
Manufacturer:
CYPRESS/赛普拉斯
Quantity:
20 000
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
Page 6 of 21
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