AK6516C Datasheet, PDF (2/17 Pages) Asahi Kasei Microsystems – SPI bus 256Kbit Serial CMOS EEPROM

ASAHI KASEI
[AK6516C]
General Description
The AK6516C is a 262144-bit, serial, read/write, non-volatile memory device fabricated using an
advanced CMOS EEPROM technology. The AK6516C has 262144-bits of memory organized as
32768 registers of 8 bits each. The AK6516C can operate all function under wide operating
voltage range: 1.6V to 5.5V. The charge up circuit for high voltage generation needed for write
operations is integrated.
The AK6516C serial interface is compatible to a SPI bus. The AK6516C has 6 instructions: READ,
WRITE, WREN (write enable), WRDI (write disable), RDSR (read status register), and WRSR (write
status register).
Each instruction is organized by an op-code (8bits), address (16bits), and data (8bits). When input
level of CS pin changed from high level to low level, AK6516C can receive instructions.
„ Pin Configurations
CS
SO
WP
GND
AK6516CF
1
8
2
7
3
6
4
5
8pin SOP
VCC
HOLD
SCK
SI
Pin name
CS
SCK
SI
SO
WP
HOLD
VCC
GND
Functions
Chip Select input
Serial Clock input
Serial Data input
Serial Data output
Write Protect input
Hold input
Power Supply
Ground
„ Type of Products
Model
Memory size Temp. Range
VCC
Package
AK6516CF 256K bits -40°C to +85°C 1.6V to 5.5V 8pin Plastic SOP
DAP05E-00
-2-
2005/03