M95256

Features:

Compatible with SPI Bus Serial Interface
    (Positive Clock SPI Modes)
Single Supply Voltage:
    4.5 to 5.5V for M95xxx
    2.5 to 5.5V for M95xxx-W
    1.8 to 5.5V for M95xxx-R
High Speed
    10MHz Clock Rate, 5ms Write Time
Status Register
Hardware Protection of the Status Register
BYTE and PAGE WRITE (up to 64 Bytes)
Self-Timed Programming Cycle
Adjustable Size Read-Only EEPROM Area
Enhanced ESD Protection
More than 100000 Erase/Write Cycles
More than 40-Year Data Retention


Pinout




Specifications

Symbol	Parameter	Min.	Max.	Unit
TSTG	Storage Temperature	65	150	°C
TLEAD	Lead Temperature during Soldering	See note 1		°C
VO	Output Voltage	0.50	VCC+0.6	V
VI	Input Voltage	0.50	6.5	V
VCC	Supply Voltage	0.50	6.5	V
VESD	Electrostatic Discharge Voltage (Human Body model) 2	4000	4000	V

 

Note:
1. Compliant with JEDEC Std J-STD-020B (for small body, Sn-Pb or Pb assembly), the ST ECOPACK^® 7191395 specification, and the European directive on Restrictions on Hazardous Substances (RoHS) 2002/95/EU
2. AEC-Q100-002 (compliant with JEDEC Std JESD22-A114A, C1=100pF, R1=1500Ω, R2=500Ω)

Description

These electrically erasable programmable memory (EEPROM) devices are accessed by a high speed SPI-compatible bus. The memory array is
organized as 32768 x 8 bit (M95256) and 16384 x 8 bit (M95128).

The M95256 is accessed by a simple serial interface that is SPI-compatible. The bus signals are C, D and Q, as shown in Table 2. and Figure 2..
The device is selected when Chip Select (S) is taken Low. Communications with the device can be interrupted using Hold HOLD).