Datasheet

Description M24C64-W M24C64-R M24C64-F 
6/42 DocID16891 Rev 28
1 Description
The M24C64 is a 64-Kbit I
2
C-compatible EEPROM (Electrically Erasable PROgrammable
Memory) organized as 8 K × 8
bits.
The M24C64-W can operate with a supply voltage from 2.5 V to 5.5 V, the M24C64-R can
operate with a supply voltage from 1.8
V to 5.5 V, and the M24C64-F and M24C64-DF can
operate with a supply voltage from 1.7
V to 5.5 V, over an ambient temperature range of
-40
°C / +85 °C.
The M24C64-D offers an additional page, named the Identification Page (32 bytes). The
Identification Page can be used to store sensitive application parameters which can be
(later) permanently locked in Read-only mode.
Figure 1. Logic diagram
Figure 2. 8-pin package connections, top view
1. See Section 9: Package mechanical data for package dimensions, and how to identify pin 1.
Table 1. Signal names
Signal name Function Direction
E2, E1, E0 Chip Enable Input
SDA Serial Data I/O
SCL Serial Clock Input
WC
Write Control Input
V
CC
Supply voltage -
V
SS
Ground -
AI01844f
3
E0-E2 SDA
V
CC
M24xxx
WC
SCL
V
SS
SDAV
SS
SCL
WCE1
E0 V
CC
E2
AI01845f
1
2
3
4
8
7
6
5