TECHNICAL DATA
KKF8594E
512 x 8-bit CMOS EEPROMS with I
2
C-
bus Interface
The
KKF8594E
is
邪
4-Kbit (512
褏
8-bit) floating gate electrically erasable
programmable read only memory (袝袝袪PROM). By using an internal redundant
storage code it is fault tolerant to single bit errors. This feature dramatically
increases reliability compared to conventional
袝袝袪R袨袦
memories.
Power consumption is low due to the full
小袦袨S
technology used. The
programming voltage 1s generated on-chip, using
邪
voltage multiplier.
As data bytes are received and transmitted via the serial I
2
C-bus,
邪
package using eight pins is sufficient. Up to four
KKF8594E
devices may be
connected to the I
c
-bus. Chip select is accomplished by two address inputs.
Timing of the Erase/Write cycle is done internally, thus no external com-
ponents are required. Pin 7 must be connected to either V
DD
or left open-circuit.
There is an option of using an external clock or timing the length of an
Erase/Write cycle.
A write protection input (pin 1) allows disable of write-commands from
the master by
邪
hardware signal. When pin 1 is HIGH and one of the upper 256
袝袝袪R袨袦
cells is addressed, then the data bytes will not be acknowledged by
the
KKF8594E
and the
袝袝袪R袨袦
contents are not changed.
KKF8594E
Plastic DIP
T
A
= -40擄 to 85擄C
PIN ASSIGNMENT
鈥?/div>
Low Power CMOS
maximum active current 2.5 m袗
鈥?/div>
maximum standby current 10
碌A(chǔ)
鈥?/div>
Non-volatile storage of 4-Kbits organized as two pages
each 256
褏
8-bits
鈥?/div>
Only one power supply required
鈥?/div>
On-chip voltage multiplier
鈥?/div>
Serial input/output bus (I
2
C)
鈥?/div>
Write operations
byte write mode
8.byte page write mode (minimizes total write time
褉械諧
byte)
鈥?/div>
Write-protection input
鈥?/div>
Read operations
sequential read
random read
鈥?/div>
.Extended supply voltage range (2,5 to 6.0 V).
鈥?/div>
Internal timer for writing (no external components)
鈥?/div>
.Power-on reset
鈥?/div>
.High reliability by using
邪
redundant storage code
(single bit error correction)
鈥?/div>
.Endurance
100 k. Tamb = 85
擄小
鈥?/div>
10 years non-volatile data retention time
鈥?/div>
Pin and Address compatible to
KKF8594E
Family and PCx8598X2 Family
1
KKF8594E相關(guān)型號PDF文件下載
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