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X28HC64DI-70 参数 Datasheet PDF下载

X28HC64DI-70图片预览
型号: X28HC64DI-70
PDF下载: 下载PDF文件 查看货源
内容描述: 5伏,可变的字节E2PROM [5 Volt, Byte Alterable E2PROM]
分类和应用: 可编程只读存储器
文件页数/大小: 24 页 / 114 K
品牌: XICOR [ XICOR INC. ]
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X28HC64
PIN DESCRIPTIONS
Addresses (A
0
–A
12
)
The Address inputs select an 8-bit memory location
during a read or write operation.
Chip Enable (CE)
The Chip Enable input must be LOW to enable all read/
write operations. When
CE
is HIGH, power consumption
is reduced.
Output Enable (OE)
The Output Enable input controls the data output buffers
and is used to initiate read operations.
Data In/Data Out (I/O
0
–I/O
7
)
Data is written to or read from the X28HC64 through the
I/O pins.
Write Enable (WE)
The Write Enable input controls the writing of data to the
X28HC64.
FUNCTIONAL DIAGRAM
65,536-BIT
E2PROM
ARRAY
PIN NAMES
Symbol
A
0
–A
12
I/O
0
–I/O
7
WE
CE
OE
V
CC
V
SS
NC
Description
Address Inputs
Data Input/Output
Write Enable
Chip Enable
Output Enable
+5V
Ground
No Connect
3857 PGM T01
X BUFFERS
LATCHES AND
DECODER
A0–A12
ADDRESS
INPUTS
Y BUFFERS
LATCHES AND
DECODER
I/O BUFFERS
AND LATCHES
I/O0–I/O7
DATA INPUTS/OUTPUTS
CE
OE
WE
VCC
VSS
3857 FHD F01
CONTROL
LOGIC AND
TIMING
2