Panasonic MN63121 Datasheet
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 voltage 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 update operations.
The memory organization is 64 × 16 bits. The chip indicates the end of a write operation with either the RDY/
BUSY pin or the state of the DO pin after the status output 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.
Features
Memory organization: 64 × 16 bits
Floating gate memory cells
Function blocking erroneous writes
Low power consumption
- Reads: max. 6.6 mW for V
- Standby: max. 66 µW for V
Built-in self-timer for use in automatically erasing
and writing
Built-in error correction circuit that guarantees 10
write cycles
10-year data preservation period
= 3.3 V
CC
= 3.3 V
CC
5
Pin Assignment
DI
1
2
3
4
( TOP VIEW )
DIP008-P-0300A
CS
SCK
DO
8
7
6
5
V
CC
RDY/BUSY
RESET
GND
Applications
Keyless entry systems, cordless telephones, storage
for recognition and adjustment data for terminals,
etc.
1
MN63121 EEPROMs
Block Diagram
CC
V
8
GND
5
DI
RESET
CS
SCK
Memory array
64 × 16
Error correction circuit
Data register
3
6
1
2
Mode decode logic
Clock generator
Address decoder
Output
buffer
7
RDY/BUSY
4
DO
2
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