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参数资料
| 型号： | 93LCS56-I/SM |
| 元件分类： | PROM |
| 英文描述： | 128 X 16 MICROWIRE BUS SERIAL EEPROM, PDSO8 |
| 封装： | 0.207 INCH, PLASTIC, SOIC-8 |
| 文件页数： | 8/14页 |
| 文件大小： | 182K |
| 代理商： | 93LCS56-I/SM |
2004 Microchip Technology Inc.
DS11181E-page 3
93LCS56/66
TABLE 1-3:
INSTRUCTION SET FOR 93LCS56*/66
Status valid time
TSV
500
ns
CL=100 pF
Program cycle time
TWC
10
ms
ERASE/WRITE mode (Note 3)
TEC
15
ms
ERAL mode
TWL
30
ms
WRAL mode
Endurance
—
1M
—
cycles
25°C, Vcc = 5.0V, Block Mode
(Note 4)
3: Typical program cycle time is 4 ms per word.
4: This parameter is not tested but guaranteed by characterization. For endurance estimates in a specific appli-
cation, please consult the Total Endurance Model which can be obtained on our BBS or website.
93LCS56/66 (x 16 organization)
Instruction SB Opcode
Address
Data In
Data Out
PRE
PE
Comments
READ
1
10
A7 - A0
—
D15-D0
0
X
Reads data stored in memory, start-
ing at specified address (.Note).
EWEN
1
00
11XXXXXX
—
High-Z
0
1
Erase/Write Enable must precede all
programming modes.
ERASE
1
11
A7 - A0
—
(RDY/
BSY)
1
Erase data at specified address
location if address is unprotected
(Note).
ERAL
1
00
10XXXXXX
—
(RDY/
BSY)
0
1
Erase all registers to “FF”. Valid only
when Protect Register is cleared.
WRITE
1
01
A7 - A0*
D15 - D0
(RDY/
BSY)
0
1
Writes register if address is unpro-
tected.
WRAL
1
00
01XXXXXX
D15 - D0
(RDY/
BSY)
0
1
Writes all registers. Valid only when
Protect Register is cleared.
EWDS
1
00
00XXXXXX
—
High-Z
0
X
Erase/Write Disable deactivates all
programming instructions.
PRREAD
1
10
XXXXXXXX
—
A7-A0
1
X
Reads address stored in Protect
Register.
PREN
1
00
11XXXXXX
—
High-Z
1
Must immediately precede
PRCLEAR, PRWRITE and PRDS
instructions.
PRCLEAR
1
11
11111111
—
(RDY/
BSY)
1
Clears the Protect Register such that
all data are NOT write-protected.
PRWRITE
1
01
A7 - A0*
—
(RDY/
BSY)
1
Programs address into Protect Reg-
ister. Thereafter, memory addresses
greater than or equal to the address
in Protect Register are write-pro-
tected.
PRDS
1
00
00000000
—
(RDY/
BSY)
1
ONE TIME ONLY instruction after
which the address in the Protect
Register cannot be altered.
Note:
Address A7 bit is a “don’t care” on 93LCS56.
TABLE 1-2:
DC AND AC ELECTRICAL CHARACTERISTICS
VCC = +2.5V to +6.0V
Commercial(C): Tamb = 0°C to +70°C
Industrial (I):
Tamb = -40°C to +85°C
Parameter
Symbol
Min
Max
Units
Conditions
(Continued)
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