參數(shù)資料
型號: P4C1256-25JC
廠商: PYRAMID SEMICONDUCTOR CORP
元件分類: SRAM
英文描述: 32K X 8 STANDARD SRAM, 25 ns, PDSO28
封裝: 0.300 INCH, PLASTIC, SOJ-28
文件頁數(shù): 16/16頁
文件大小: 1155K
代理商: P4C1256-25JC
W39L040
Publication Release Date: April 14, 2005
- 9 -
Revision A6
6.5 Table of Operating Modes
6.5.1 Device Bus Operations
(VID = 12
±0.5V)
PIN
MODE
#CE #OE #WE
A0
A1
A9
DQ0
DQ7
Read
VIL
VIH
A0
A1
A9
Dout
Write
VIL
VIH
VIL
A0
A1
A9
Din
Standby
VIH
X
High Z
X
VIL
X
High Z/
Dout
Write Inhibit
X
VIH
X
High Z/
Dout
Output Disable
VIL
VIH
X
High Z
Auto select Manufacturers ID
VIL
VIH
VIL
VID
Code
Auto select Device ID
VIL
VIH
VIL
VID
Code
6.5.2 Auto-select Codes (High Voltage Method)
(VID = 12
±0.5V)
DESCRIPTION
#CE #OE #WE
A9
THE OTHER ADDRESS
DQ[7:0]
Manufacturer ID: Winbond
VIL
VIH
VID
All Add = VIL
DAhex
Device ID: W39L040
VIL
VIH
VID
A1 = VIH, All other = VIL
B6hex
6.5.3 Sector Address Table
SECTOR
A18
A17
A16
SECTOR SIZE (KBYTES)
ADDRESS
SA0
0
64
00000h
0FFFFh
SA1
0
1
64
10000h
1FFFFh
SA2
0
1
0
64
20000h
2FFFFh
SA3
0
1
64
30000h
3FFFFh
SA4
1
0
64
40000h
4FFFFh
SA5
1
0
1
64
50000h
5FFFFh
SA6
1
0
64
60000h
6FFFFh
SA7
1
64
70000h
7FFFFh
Note: All sectors are 64K bytes in size.
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