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參數資料
| 型號： | 93LCS66-ISM |
| 廠商： | Microchip Technology Inc. |
| 元件分類： | EEPROM |
| 英文描述： | 2K/4K 2.5V Microwire Serial EEPROM with Software Write Protect |
| 中文描述： | 2K/4K 2.5V的Microwire串行EEPROM，帶有軟件寫保護 |
| 文件頁數： | 1/12頁 |
| 文件大小： | 133K |
| 代理商： | 93LCS66-ISM |
1996 Microchip Technology Inc.
Preliminary
DS11181D-page 1
FEATURES
Single supply with programming operation down
to 2.5V
Low power CMOS technology
- 1 mA active current typical
- 5
μ
A standby current (typical) at 3.0V
x16 memory organization
- 128x16 (93LCS56)
- 256x16 (93LCS66)
Software write protection of user defined memory
space
Self timed erase and write cycles
Automatic ERAL before WRAL
Power on/off data protection
Industry standard 3-wire serial I/O
Device status signal during E/W
Sequential READ function
1,000,000 E/W cycles guaranteed
Data retention > 200 years
8-pin PDIP/SOIC and 14-pin SOIC packages
Temperature ranges supported
- Commercial (C):
- Industrial (I):
0C to +70C
-40C to +85C
BLOCK DIAGRAM
DESCRIPTION
The Microchip Technology Inc. 93LCS56/66 are low volt-
age Serial Electrically Erasable PROMs with memory
capacities of 2K bits/4K bits respectively. A write protect
register is included in order to provide a user defined
region of write protected memory. All memory locations
greater than or equal to the address placed in the write
protect register will be protected from any attempted write
or erase operation. It is also possible to protect the
address in the write protect register permanently by using
a one time only instruction (PRDS). Any attempt to alter
data in a register whose address is equal to or greater
than the address stored in the protect register will be
aborted. Advanced CMOS technology makes this device
ideal for low power non-volatile memory applications.
MEMORY
ARRAY
ADDRESS
DECODER
V
CC
V
SS
DATA REGISTER
DO
MODE
DECODE
LOGIC
CLOCK
GENERATOR
OUTPUT
BUFFER
DI
CS
CLK
PRE
PE
ADDRESS
COUNTER
93LCS56/66
2K/4K 2.5V Microwire
Serial EEPROM with Software Write Protect
PACKAGE TYPES
93LCS56
93LCS66
93LCS56
93LCS66
93LCS56
93LCS66
SOIC
1
2
3
4
5
6
7
14
13
12
11
10
9
8
NC
V
CC
PRE
NC
PE
V
SS
NC
NC
CS
CLK
NC
DI
DO
NC
SOIC
1
2
3
4
8
7
6
5
V
CC
PRE
PE
V
SS
CS
CLK
DI
DO
1
2
3
4
8
7
6
5
V
CC
PRE
PE
V
SS
CS
CLK
DI
DO
DIP
Microwire is a registered trademark of National Semiconductor Incorporated.
This document was created with FrameMaker 4 0 4
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| 93LCS66-ISN | 2K/4K 2.5V Microwire Serial EEPROM with Software Write Protect |
| 93LCS66-P | 2K/4K 2.5V Microwire Serial EEPROM with Software Write Protect |
| 93LCS66-SL | Connectors |
| 93LCS66-SM | 2K/4K 2.5V Microwire Serial EEPROM with Software Write Protect |
| 93LCS66-SN | 2K/4K 2.5V Microwire Serial EEPROM with Software Write Protect |
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