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參數(shù)資料
| 型號： | 28C256 |
| 英文描述： | 5 Volt, Byte Alterable E2PROM |
| 中文描述： | 5伏，可變E2PROM的字節(jié) |
| 文件頁數(shù)： | 2/24頁 |
| 文件大小： | 113K |
| 代理商： | 28C256 |
2
X28C256
PIN DESCRIPTIONS
Addresses (A
0
–A
14
)
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 X28C256 through the
I/O pins.
Write Enable (
WE
)
The Write Enable input controls the writing of data to the
X28C256.
PIN NAMES
Symbol
A
0
–A
14
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
3855 PGM T01
3855 FHD F01
X BUFFERS
LATCHES AND
DECODER
I/O BUFFERS
AND LATCHES
Y BUFFERS
LATCHES AND
DECODER
CONTROL
LOGIC AND
TIMING
256K-BIT
E2PROM
ARRAY
I/O0–I/O7
DATA INPUTS/OUTPUTS
CE
OE
VCC
VSS
A0–A14
ADDRESS
INPUTS
WE
FUNCTIONAL DIAGRAM
X28C256
11
I/O0
10
A0
14
VSS
9
A1
8
A2
7
A3
6
A4
5
A5
2
A12
28
VCC
12
I/O1
13
I/O2
15
I/O3
4
A6
3
A7
1
A14
16
I/O4
20
CE
22
OE
24
A9
17
I/O5
27
WE
19
I/O7
21
A10
23
A11
25
A8
18
I/O6
26
A13
BOTTOM VIEW
PGA
3855 FHD F04
PIN CONFIGURATION
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 28C256 | 32K-Bit Parallel E2PROM |
| 28C256 | LABELS,LABELS IN DISPENSER,LABELS,PRE-PRINTED MARKER LABELS,LOCKOUT/TAGOUT PRODUCTS,LABELS IN DISPENSER ,PANDUIT |
| 28C64A | 64K (8K x 8) CMOS EEPROM(64K位, CMOS并行 EEPROM) |
| 28C64AFT-15ITS | LJT 41C 41#20 PIN PLUG |
| 28C64AFT-15IVS | The CAT24FC02 is a 2-kb Serial CMOS EEPROM internally organized as 256 words of 8 bits each |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 28C256-12/D | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x8 EEPROM |
| 28C256-12/J | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x8 EEPROM |
| 28C256-12/K | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x8 EEPROM |
| 28C256-12/L | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x8 EEPROM |
| 28C256-12/P | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x8 EEPROM |
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