42568WP Datasheet – 256 Kbit Serial I2C Bus EEPROM – ST

Part Number: 42568WP, Correct P/N : 42568WP, Full Part Number: M24C64-WMN6TP

Function: 256-Kbit serial I2C bus EEPROM

Manufacturer: STMicroelectronics

Image :

42568WP EEPROM
Features SUMMAR

1. Compatible with all I2C bus modes:
– 1 MHz
– 400 kHz
– 100 kHz

2.  Memory array:
– 256 Kbit (32 Kbytes) of EEPROM
– Page size: 64 bytes
– Additional Write lockable page (M24256-D order codes)

3. Single supply voltage and high speed:
– 1 MHz clock from 1.7 V to 5.5 V

4. Write:
– Byte Write within 5 ms
– Page Write within 5 ms

5. Operating temperature range :  – from -40 °C up to +85 °C

6. Random and sequential Read modes

7. Write protect of the whole memory array

8. Enhanced ESD/Latch-Up protection

 

42568WP Marking Information

42568WP Marking

Reference PDF : http://rsaxvc.net/datasheets/st/3303.pdf

Description

The M24256 is a 256-Kbit I2 C-compatible EEPROM (Electrically Erasable PROgrammable  Memory) organized as 32 K × 8 bits. The 42568WP can operate with a supply voltage from 2.5 V to 5.5 V, the M24256-BR and M24256-DR can operate with a supply voltage from 1.8 V to 5.5 V, and the M24256-BF and M24256-DF can operate with a supply voltage from1.7 V to 5.5 V. All these devices operate with a clock frequency of 1 MHz (or less), over an ambient temperature range of –40 °C / +85 °C.
The M24256-D offers an additional page, named the Identification Page (64 bytes). The Identification Page can be used to store sensitive application parameters which can be (later) permanently locked in Read-only mode.

 

Pinouts

Marking Information

42568WP Datasheet

42568WP pdf

Other data sheets are available within the file:  M24256-BW, M24256-BR, M24256-BF, M24256-DR, M24256-DF

Related articles across the web

74HC541 Datasheet – Octal Bus Buffer – ST Microelectronics

Part Number: 74HC541, M74HC541, HC541

Description

3-State Octal Bus Buffer

Package: DIP, SOP, TSSOP 20 Pin type

Manufacturer: ST Microelectronics

Image

74HC541 Image

Description

The 74HC541 is an advanced high-speed CMOS OCTAL BUS BUFFER (3-STATE) fabricated with silicon gate C2MOS technology. The M74HC541 is a non inverting buffer. The 3-STATE control gate operates as a two input AND such that if either G1and G2are high, all eight output are in the high impedance state.

Pinout

74HC541 pinout

Features

1. High Speed : tPD = 9ns (TYP.) at VCC = 6V
2. LOW POWER DISSIPATION : ICC = 4µA(MAX.) at TA=25°C
3. HIGH NOISE IMMUNITY : VNIH = VNIL = 28 % VCC (MIN.)
4. SYMMETRICAL OUTPUT IMPEDANCE : |IOH| = IOL = 6mA (MIN)
5. BALANCED PROPAGATION DELAYS : tPLH ≅ tPHL
6. WIDE OPERATING VOLTAGE RANGE : VCC (OPR) = 2V to 6V
7. PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 541

Circuit Diagram

74HC541 Datasheet Circuit

74HC541 Datasheet

74HC541 pdf


 

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