参数资料
型号: CY7C057V-15BBXC
厂商: CYPRESS SEMICONDUCTOR CORP
元件分类: SRAM
英文描述: 3.3V 16K/32K x 36 FLEx36™ Asynchronous Dual-Port Static
中文描述: 32K X 36 DUAL-PORT SRAM, 15 ns, PBGA172
封装: 15 X 15 MM, 1.25 MM HEIGHT, 1 MM PITCH, BGA-172
文件页数: 6/26页
文件大小: 713K
代理商: CY7C057V-15BBXC
CY7C056V
CY7C057V
Document #: 38-06055 Rev. *E
Page 14 of 26
Notes
39. CE0 = HIGH and CE1 = LOW for the duration of the above timing (both write and read cycle).
40. I/O0R = I/O0L = LOW (request semaphore); CE0R = CE0L = HIGH and CE1R = CE1L=LOW.
41. Semaphores are reset (available to both ports) at cycle start.
42. If tSPS is violated, the semaphore will definitely be obtained by one side or the other, but which side will get the semaphore is unpredictable.
Switching Waveforms (continued)
tSOP
tSAA
VALID ADRESS
tHD
DATAIN VALID
DATAOUT VALID
tOHA
tAW
tHA
tACE
tSOP
tSCE
tSD
tSA
tPWE
tSWRD
tDOE
WRITE CYCLE
READ CYCLE
OE
R/W
I/O0
SEM
A0–A2
Semaphore Read After Write Timing, Either Side[39]
MATCH
tSPS
MATCH
R/WL
SEM L
R/WR
SEMR
Timing Diagram of Semaphore Contention[40, 41, 42]
A0L–A2L
A0R–A2R
相关PDF资料
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CY7C057V-15AXI 3.3V 16K/32K x 36 FLEx36™ Asynchronous Dual-Port Static
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CY7C0832V-167AXC 256K X 18 DUAL-PORT SRAM, 4 ns, PQFP120
CY7C0851AV-133AXC FLEx36™ 3.3V 32K/64K/128K/256K x 36 Synchronous Dual-Port RAM
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