1999 Jan 06

8

Philips Semiconductors

Product specification

256

× 8-bit static low-voltage RAM with

PCF8570

9

LIMITING VALUES

In accordance with the Absolute Maximum Rating System (IEC 134).

10 HANDLING

Inputs and outputs are protected against electrostatic discharge in normal handling. However, to be totally safe, it is

desirable to take precautions appropriate to handling MOS devices. Advice can be found in Data Handbook IC12 under

“Handling MOS Devices”.

SYMBOL

PARAMETER

MIN.

MAX.

UNIT

supply voltage (pin 8)

−0.8

+8.0

V

input voltage (any input)

−0.8

V

DC input current

−±10

mA

DC output current

−±10

mA

positive supply current

−±50

mA

negative supply current

−±50

mA

total power dissipation per package

−

300

mW

power dissipation per output

−

50

mW

operating ambient temperature

−40

+85

°C

storage temperature

−65

+150

°C

Fig.9 Master reads slave immediately after first byte (READ mode).

andbook, full pagewidth

S

1A

SLAVE ADDRESS

DATA

A1

DATA

acknowledgement

from slave

acknowledgement

from slave

acknowledgement

from slave

R/W

auto increment

word address

MBD824

auto increment

word address

n bytes

last bytes

P