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參數(shù)資料
| 型號： | FM93C46AN |
| 英文描述： | Microwire Serial EEPROM |
| 中文描述： | 微型導線串行EEPROM |
| 文件頁數(shù)： | 1/13頁 |
| 文件大小： | 162K |
| 代理商： | FM93C46AN |
1
www.fairchildsemi.com
FM93C46A Rev. C.1
FM93C46A
1K-Bit
Serial
CMOS
EEPROM
(MICROWIRE
TM
Synchronous
Bus)
July 2000
2000 Fairchild Semiconductor International
FM93C46A
1K-Bit Serial CMOS EEPROM
(MICROWIRE Synchronous Bus)
General Description
FM93C46A is a 1024-bit CMOS non-volatile EEPROM organized
as 64 x 16-bit array. This device features MICROWIRE interface
which is a 4-wire serial bus with chipselect (CS), clock (SK), data
input (DI) and data output (DO) signals. This interface is compat-
ible to many standard Microcontrollers and Microprocessors. This
device offers a pin (ORG), using which, the user can select the
format of the data (16-bit or 8-bit). If ORG is tied to GND, then 8-
bit format is selected, while if ORG is tied to VCC, then 16-bit format
is selected. There are 7 instructions implemented on the FM93C46A
for various Read, Write, Erase, and Write Enable/Disable opera-
tions. This device is fabricated using Fairchild Semiconductor
floating-gate CMOS process for high reliability, high endurance
and low power consumption.
“LZ” and “L” versions of FM93C46A offer very low standby current
making them suitable for low power applications. This device is
offered in both SO and TSSOP packages for small space consid-
erations.
Functional Diagram
Features
I Wide V
CC 2.7V - 5.5V
I User selectable organization
x16 (ORG = 1)
x8 (ORG = 0)
I Typical active current of 200A
10
A standby current typical
1
A standby current typical (L)
0.1
A standby current typical (LZ)
I No Erase instruction required before Write instruction
I Self timed write cycle
I Device status during programming cycles
I 40 year data retention
I Endurance: 1,000,000 data changes
I Packages available: 8-pin SO, 8-pin DIP, 8-pin TSSOP
INSTRUCTION
DECODER
CONTROL LOGIC
AND CLOCK
GENERATORS
HIGH VOLTAGE
GENERATOR
AND
PROGRAM
TIMER
INSTRUCTION
REGISTER
ADDRESS
REGISTER
EEPROM ARRAY
READ/WRITE AMPS
DATA IN/OUT REGISTER
16/8 BITS
DECODER
16
DATA OUT BUFFER
CS
SK
DI
ORG
DO
VSS
VCC
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