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参数资料
| 型号： | CY7C025-15AI |
| 英文描述： | x16 Dual-Port SRAM |
| 中文描述： | x16双端口SRAM |
| 文件页数： | 8/20页 |
| 文件大小： | 301K |
| 代理商： | CY7C025-15AI |
CY7C138AV/144AV/006AV
CY7C139AV/145AV/016AV
CY7C007AV/017AV
Document #: 38-06051 Rev. *A
Page 16 of 20
Table 1. Non-Contending Read/Write
Inputs
Outputs
CE
R/W
OE
SEM
I/O0–I/O8
Operation
H
X
H
High Z
Deselected: Power-Down
H
L
Data Out
Read Data in Semaphore Flag
X
H
X
High Z
I/O Lines Disabled
H
X
L
Data In
Write into Semaphore Flag
L
H
L
H
Data Out
Read
L
X
H
Data In
Write
L
X
L
Not Allowed
Table 2. Interrupt Operation Example (assumes BUSYL=BUSYR=HIGH)
Left Port
Right Port
Function
R/WL
CEL
OEL
A0L–14L
INTL
R/WR
CER
OER
A0R–14R
INTR
Set Right INTR Flag
L
X
FFF[45]
X
L[46]
Reset Right INTR Flag
X
L
FFF[45]
H[47]
Set Left INTL Flag
X
L[47]
L
X
1FFE[45]
X
Reset Left INTL Flag
X
L
1FFE[45]
H[46]
X
Table 3. Semaphore Operation Example
Function
I/O0–I/O8 Left
I/O0–I/O8 Right
Status
No action
1
Semaphore free
Left port writes 0 to semaphore
0
1
Left Port has semaphore token
Right port writes 0 to semaphore
0
1
No change. Right side has no write access to semaphore
Left port writes 1 to semaphore
1
0
Right port obtains semaphore token
Left port writes 0 to semaphore
1
0
No change. Left port has no write access to semaphore
Right port writes 1 to semaphore
0
1
Left port obtains semaphore token
Left port writes 1 to semaphore
1
Semaphore free
Right port writes 0 to semaphore
1
0
Right port has semaphore token
Right port writes 1 to semaphore
1
Semaphore free
Left port writes 0 to semaphore
0
1
Left port has semaphore token
Left port writes 1 to semaphore
1
Semaphore free
Note:
45. See Functional Description for specific addresses by device part number.
46. If BUSYL = L, then no change.
47. If BUSYR = L, then no change.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| CY7C025-15AXC | 功能描述:IC SRAM 128KBIT 15NS 100LQFP RoHS:是 类别:集成电路 (IC) >> 存储器 系列:- 标准包装:96 系列:- 格式 - 存储器:闪存 存储器类型:FLASH 存储容量:16M（2M x 8，1M x 16） 速度:70ns 接口:并联 电源电压:2.65 V ~ 3.6 V 工作温度:-40°C ~ 85°C 封装/外壳:48-TFSOP（0.724"，18.40mm 宽） 供应商设备封装:48-TSOP 包装:托盘 |
| CY7C025-15AXCT | 功能描述:IC SRAM 128KBIT 15NS 100LQFP RoHS:是 类别:集成电路 (IC) >> 存储器 系列:- 标准包装:1,000 系列:- 格式 - 存储器:RAM 存储器类型:移动 SDRAM 存储容量:256M（8Mx32） 速度:133MHz 接口:并联 电源电压:1.7 V ~ 1.95 V 工作温度:-40°C ~ 85°C 封装/外壳:90-VFBGA 供应商设备封装:90-VFBGA（8x13） 包装:带卷 (TR) 其它名称:557-1327-2 |
| CY7C025-15AXI | 功能描述:IC SRAM 128KBIT 15NS 100LQFP RoHS:是 类别:集成电路 (IC) >> 存储器 系列:- 标准包装:1,000 系列:- 格式 - 存储器:RAM 存储器类型:移动 SDRAM 存储容量:256M（8Mx32） 速度:133MHz 接口:并联 电源电压:1.7 V ~ 1.95 V 工作温度:-40°C ~ 85°C 封装/外壳:90-VFBGA 供应商设备封装:90-VFBGA（8x13） 包装:带卷 (TR) 其它名称:557-1327-2 |
| CY7C025-15JC | 制造商:CYPRESS 制造商全称:Cypress Semiconductor 功能描述:4K x 16/18 and 8K x 16/18 Dual-Port Static RAM with SEM, INT, BUSY |
| CY7C025-15JXC | 制造商:CYPRESS 制造商全称:Cypress Semiconductor 功能描述:4K x 16/18 and 8K x 16/18 Dual-Port Static RAM with SEM, INT, BUSY |
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