BL24C256A Datasheet, PDF (1/18 Pages) SHANGHAI BELLING CO., LTD. – Single supply voltage and high speed

BL24C256A 256Kbits (32768×8)
Features
 Compatible with all I²C bidirectional data
transfer protocol
 Memory array:
– 256 Kbits (32 Kbytes) of EEPROM
– Page size: 64 bytes
– Additional Write lockable page
 Single supply voltage and high speed:
– 1 MHz
 Random and sequential Read modes
 Write:
– Byte Write within 3 ms
– Page Write within 3 ms
– Partial Page Writes Allowed
 Write Protect Pin for Hardware Data Protection
 Schmitt Trigger, Filtered Inputs for Noise
Suppression
 High-reliability
– Endurance: 1 Million Write Cycles
– Data Retention: 100 Years
 Enhanced ESD/Latch-up protection
– HBM 8000V
 8-lead PDIP/SOP/TSSOP/UDFN and WLCSP4
packages
Description
 The BL24C256A provides 262144 bits of serial
electrically erasable and programmable read-
only memory (EEPROM), organized as 32768
words of 8 bits each.
 The device is optimized for use in many
industrial and commercial applications where
low-power and low-voltage operation are
essential.
 The BL24C256A 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.
Pin Configuration
8-lead PDIP
A0 1
5
A1 2
6
A2
3
7
GND 4
8
VCC A0
WP A1
SCL A2
SDA GND
8-lead SOP
8-lead TSSOP
1
5
VCC A0
1
5
2
6
WP A1
2
6
3
7 SCL A2
3
7
4
8 SDA GND 4
8
8-pad DFN
VCC VCC 1
WP WP 2
SCL SCL 3
SDA SDA 4
5 A0 _A
6 A1
7 A2
8 GND ^B
WLCSP4
1
2
Vcc
Vss
SCL
SDA
Bottem view
Marking side
(top view)
BL24C256A 256Kbits (32768×8) Belling Proprietary Information. Unauthorized Photocopy and Duplication Prohibited
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