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參數(shù)資料
| 型號： | CY7C028V-20ACT |
| 廠商： | CYPRESS SEMICONDUCTOR CORP |
| 元件分類： | SRAM |
| 英文描述： | 3.3V 32K/64K x 16/18 Dual-Port Static RAM |
| 中文描述： | 64K X 16 DUAL-PORT SRAM, 20 ns, PQFP100 |
| 封裝： | PLASTIC, MS-026, TQFP-100 |
| 文件頁數(shù)： | 8/22頁 |
| 文件大?。?/td> | 635K |
| 代理商： | CY7C028V-20ACT |
CY7C027V/027AV/028V
CY7C037AV/038V
Document #: 38-06078 Rev. *D
Page 16 of 22
Table 1. Non-Contending Read/Write
Inputs
Outputs
CE
R/W
OE
UB
LB
SEM
I/O9–I/O17
I/O0–I/O8
Operation
H
X
H
High Z
Deselected: Power-down
X
H
High Z
Deselected: Power-down
L
X
L
H
Data in
High Z
Write to upper byte only
L
X
H
L
H
High Z
Data in
Write to lower byte only
L
X
L
H
Data in
Write to both bytes
L
H
L
H
Data out
High Z
Read upper byte only
L
H
L
H
L
H
High Z
Data out
Read lower byte only
L
H
L
H
Data out
Read both bytes
X
H
X
High Z
Outputs disabled
H
L
X
L
Data out
Read data in semaphore flag
X
H
L
H
L
Data out
Read data in semaphore flag
H
X
L
Data in
Write DIN0 into semaphore flag
X
H
L
Data in
Write DIN0 into semaphore flag
L
X
L
X
L
Not allowed
L
X
L
Not allowed
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
7FFF
X
L[47]
Reset right INTR flag
X
XXX
X
L
7FFF
H[46]
Set left INTL flag
X
L[46]
LL
X
7FFE
X
Reset left INTL flag
X
L
7FFE
H[47]
XX
X
Table 3. Semaphore Operation Example
Function
I/O0–I/O17 Left I/O0–I/O17 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
Notes
45. A0L–15L and A0R–15R,FFFF/FFFE for the CY7C028V/038V.
46. If BUSYR=L, then no change.
47. If BUSYL=L, then no change.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CY7C028V-20AI | 制造商:Cypress Semiconductor 功能描述:SRAM Chip Async Dual 3.3V 1M-Bit 64K x 16 20ns 100-Pin TQFP Tray |
| CY7C028V-20AXC | 功能描述:靜態(tài)隨機存取存儲器 3.3V 64Kx16 COM Async Dual Port 靜態(tài)隨機存取存儲器 RoHS:否 制造商:Cypress Semiconductor 存儲容量:16 Mbit 組織:1 M x 16 訪問時間:55 ns 電源電壓-最大:3.6 V 電源電壓-最小:2.2 V 最大工作電流:22 uA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSOP-48 封裝:Tray |
| CY7C028V-20AXCT | 功能描述:靜態(tài)隨機存取存儲器 3.3V 64Kx16 COM Async Dual Port 靜態(tài)隨機存取存儲器 RoHS:否 制造商:Cypress Semiconductor 存儲容量:16 Mbit 組織:1 M x 16 訪問時間:55 ns 電源電壓-最大:3.6 V 電源電壓-最小:2.2 V 最大工作電流:22 uA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSOP-48 封裝:Tray |
| CY7C028V-20AXI | 功能描述:靜態(tài)隨機存取存儲器 3.3V 64Kx16 IND Async Dual Port 靜態(tài)隨機存取存儲器 RoHS:否 制造商:Cypress Semiconductor 存儲容量:16 Mbit 組織:1 M x 16 訪問時間:55 ns 電源電壓-最大:3.6 V 電源電壓-最小:2.2 V 最大工作電流:22 uA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSOP-48 封裝:Tray |
| CY7C028V-25AC | 功能描述:IC SRAM 1MB DUAL 100-TQFP RoHS:否 類別:集成電路 (IC) >> 存儲器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 格式 - 存儲器:EEPROMs - 串行 存儲器類型:EEPROM 存儲容量:4K (512 x 8) 速度:400kHz 接口:I²C，2 線串口 電源電壓:2.7 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 封裝/外殼:8-SOIC（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:8-MFP 包裝:帶卷 (TR) |
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