pcf8582e-2t NXP Semiconductors, pcf8582e-2t Datasheet - Page 2

• Manufacturer Part Number: pcf8582e-2t
• Description: 8-bit Cmos Eeproms With I2c-bus Interface
• Manufacturer: NXP Semiconductors

Philips Semiconductors
FEATURES
QUICK REFERENCE DATA
December 1994
V
I
I
I
DDR
DDW
DDSB
Low power CMOS
– maximum active current 2.0 mA
– maximum standby current 10 A (at 6.0 V),
Non-volatile storage of 2-Kbits organized as 256
Single supply with full operation down to 2.5 V
On-chip voltage multiplier
Serial input/output I
Write operations
– byte write mode
– 8-byte page write mode
Read operations
– sequential read
– random read
Internal timer for writing (no external components)
Power-on reset
High reliability by using a redundant storage code
Endurance
– >500 k E/W-cycles at T
40 years non-volatile data retention time (typ.)
Pin and address compatible to
– PCX8570, PCF8571, PCF8572 and PCF8581
– PCX8494X-2, PCX8598X-2 -Family.
DD
256 x 8-bit CMOS EEPROMS
with I
typical 4 A
(minimizes total write time per byte)
SYMBOL
2
C-bus interface
2
supply voltage
supply current READ
supply current ERASE/WRITE
supply current STANDBY
C-bus
amb
PARAMETER
= 22 C
8-bits
f
f
SCL
SCL
V
V
V
V
V
V
2
DD
DD
DD
DD
DD
DD
= 100 kHz
= 100 kHz
DESCRIPTION
The PCX8582X-2 is a 2-Kbit (256
electrically erasable programmable read only memory
(EEPROM). By using an internal redundant storage code
it is fault tolerant to single bit errors. This feature
dramatically increases reliability compared to conventional
EEPROM memories.
Power consumption is low due to the full CMOS
technology used. The programming voltage is generated
on-chip, using a voltage multiplier.
As data bytes are received and transmitted via the serial
I
eight PCX8582X-2 devices may be connected to the
I
inputs (A0, A1, A2).
Timing of the ERASE/WRITE cycle is carried out
internally, thus no external components are required. Pin 7
(PTC) must be connected to either V
There is an option of using an external clock for timing the
length of an ERASE/WRITE cycle.
2
2
C-bus, a package using eight pins is sufficient. Up to
C-bus. Chip select is accomplished by three address
CONDITIONS
= 3 V
= 6 V
= 3 V
= 6 V
= 3 V
= 6 V
PCX8582X-2 Family
2.5
MIN.
Product specification
8-bit) floating gate
6.0
60
200
0.6
2.0
3.5
10
DD
MAX.
or left open-circuit.
V
mA
mA
A
A
A
A
UNIT