GENMEMOR.PDF

(35 KB) Pobierz
MOTOROLA
SEMICONDUCTOR
TECHNICAL DATA
MCM2814
256 x 8 Bit Serial EEPROM
The MCM2814 is a 2048–bit serial electrically erasable PROM designed for handling
data in applications requiring both non–volatile memory and in–system information
updates.
The MCM2814 is fabricated in 8–pin DIP and SOG packages using floating–gate
HCMOS EEPROM technology.
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
2048 Bits Organized as 256 Bytes
Byte Programmable
3 V – 6 V Supply During Read Operations
On–Chip Programming Voltage Generator
Two Programming Modes: Two–Wire Serial Access, M–Bus/Four–Wire Serial
Access SPI
Data Protection of 1/4, 1/2, or 3/4 Array with EEPROM Bits
Simultaneous Programming of 1 to 4 Bytes
Automatic Byte Address Increment in Read Mode
Chip Selection with Separate Pin
Single 3 V to 6 V Supply During Programming
Digital Filtering on Clock and Data Inputs
Bit Program Operation: No Byte Erase Necessary
Data Protection After Reset
Write/Erase Endurance: 10,000 Cycles over 0 to 70°C
Typically 100,000 W/E Cycles at Ambient Temperatures
Data Retention: 10 Years
FETMOS
(Floating–Gate Electron Tunnelling MOS)
BP SUFFIX
PLASTIC PACKAGE
CASE 626–04
G SUFFIX
PLASTIC PACKAGE
CASE 751–03
PIN ASSIGNMENT
CS0/SPISS
CS1/SPISO
MODE
VSS
1
2
3
4
8
7
6
5
VDD
EXTERNAL/
TEST
SCL/SPICK
SDA/SPISI
PIN NAMES
VDD . . . . . . . . . . . . . . . . . . Power Supply
VSS . . . . . . . . . . . . . . . . . . Ground (Ref)
External/Test . . . Connected to On–Chip
Voltage Multiplier Output
CS0
CS1
SDA
SCL
M–BUS MODE
. . . . . . . . . Chip Select (Hardwired)
. . . . . . . . . Chip Select (Hardwired)
. . . . . . . . . . . . . . . . . Serial Data I/O
. . . . . . . . . . . . . . Serial Clock Input
SPI MODE
SPISS . . . . . . . . . . . . Slave Select Input
SPISO . . . . . . . . . . . . Serial Data Output
SPISI . . . . . . . . . . . . . . Serial Data Input
SPICK . . . . . . . . . . . . Serial Clock Input
POLY OXIDE
THIN OXIDE
1ST POLY
2ND POLY
FIELD
OXIDE
N+
P–SUBSTRATE
N+
FIELD
OXIDE
Motorola is announcing the end–of–life status of the 256Kx8 bit EEPROM (MCM2814) product family.
Motorola will accept orders until March 30, 1996, and will support deliveries until September 30, 1996. There
are no Motorola offerings that will directly replace these devices.
IIC is a trademark of Philips.
REV 2
9/95
MOTOROLA DRAM
MCM2814
5–1
MOTOROLA
SEMICONDUCTOR
TECHNICAL DATA
Preliminary Information
MCM2814ATR
X SUFFIX
XX PACKAGE
CASE TBD
256 x 8 Bit Serial EEPROM
The MCM2814ATR is a 2048–bit serial electrically erasable PROM fabricated using
floating gate HCMOS technology. It is designed for handling data in applications requir-
ing both non–volatile memory and in–system information updates. The EEPROM is
organized as 256 x 8 bit. The memory is protected via a scheme which uses one byte
of the EEPROM to define the number of bytes in the array which are read only. The
card has an M–Bus interface for serial communication. In addition, the card responds
to an Answer–to–Reset condition as defined in the ISO7816 standard, during which the
first four bytes of the array are transmitted.
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
2048 Bits Organized as 256 Bytes
Byte Programmable
Single 5 V Supply During Read and Programming Operations
On–Chip Programming Voltage Generator
Internally Controlled Program Time
Automatic Byte Address Increment in Read Mode
Two–Wire (IIC Compatible) M–Bus
Internal Pull–Up Resistor on CLK and I/O Pins
Answer to Reset Feature as Defined in ISO7816 Standard
Pin Configuration as Defined in ISO7816 Standard
Serial Interface as Defined in ISO7816 Standard
Data Protection of Any Number of Bytes of Array Using One EEPROM Byte
Simultaneous Programming of One to Four Bytes
Digital Filtering on Clock and Data Inputs
Byte Program Operation: No Byte Erase Necessary
Data Protection After Reset
Write/Erase Endurance: 10,000 Cycles over 0 to 70°C
Typically 100,000 W/E Cycles at Ambient Temperatures
Data Retention: 10 Years
PIN ASSIGNMENT
GND
VPP
I/O
1
2
3
6
5
4
VCC
RST
CLK
Motorola is announcing the end–of–life status of the 256Kx8 bit EEPROM (MCM2814) product family.
Motorola will accept orders until March 30, 1996, and will support deliveries until September 30, 1996. There
are no Motorola offerings that will directly replace these devices.
IIC is a trademark of Philips.
Motorola reserves the right to make changes to any product herein to improve reliability, functionality, or design. Although the information in this document has been
carefully reviewed and is believed to be reliable, Motorola does not assume liability arising out of the application or use of any product or circuit described herein;
neither does it convey any license under its patent rights nor the rights of others.
9/95
MCM2814ATR
5–2
MOTOROLA DRAM

Plik z chomika:

Inne pliki z tego folderu:

Inne foldery tego chomika:

Zgłoś jeśli naruszono regulamin