EEPROMs
MN63121
1K-Bit EEPROM
Overview
The MN63121 is a 1K-bit EEPROM supporting serial
I/O and operating on a single power supply with a volt-
age between 1.8 and 5.5 V. It provides the following pins
for easy interfacing to microprocessors or
microcontrollers: chip select (CS), serial clock (SCK),
data input (DI), data output (DO), reset (RESET), and
busy (RDY/BUSY). It includes a built-in timer for use in
automatically erasing and writing data during data up-
date operations.
The memory organization is 64
脳
16 bits. The chip in-
dicates the end of a write operation with either the RDY/
BUSY pin or the state of the DO pin after the status out-
put mode has been set.
Conversion of peripheral circuits to CMOS realizes
great reductions in power consumption. Use of floating
gate memory cells and a built-in error correction circuit
ensures reliable operation for 10
5
write cycles.
Pin Assignment
CS
SCK
DI
DO
1
2
3
4
8
7
6
5
V
CC
RDY/BUSY
RESET
GND
( TOP VIEW )
DIP008-P-0300A
Features
Memory organization: 64
脳
16 bits
Floating gate memory cells
Function blocking erroneous writes
Low power consumption
- Reads: max. 6.6 mW for V
CC
= 3.3 V
- Standby: max. 66
碌W
for V
CC
= 3.3 V
Built-in self-timer for use in automatically erasing
and writing
Built-in error correction circuit that guarantees 10
5
write cycles
10-year data preservation period
Applications
Keyless entry systems, cordless telephones, storage
for recognition and adjustment data for terminals,
etc.
1
1
2
3
4
