PCF8570 Philips Semiconductors, PCF8570 Datasheet - Page 9

• Manufacturer Part Number: PCF8570
• Description: 256 x 8-bit static low-voltage RAM with I2C-bus interface
• Manufacturer: Philips Semiconductors

Philips Semiconductors
11 DC CHARACTERISTICS
V
Notes
1. The Power-on reset circuit resets the I
2. If the input voltages are a diode voltage above or below the supply voltage V
1999 Jan 06
Supply
V
I
V
Inputs, input/output SDA
V
V
I
I
Inputs A0, A1, A2 and TEST
I
Inputs SCL and SDA
C
Low V
V
I
Power-saving mode (see Figs 13 and 14)
I
t
SYMBOL
DD
OL
LI
LI
DDR
DDR
HD2
DD
DD
POR
IL
IH
DDR
i
256
I
2
condition can be tested by sending the slave address and testing the acknowledge bit.
current must not exceed 0.5 mA.
= 2.5 to 6.0 V; V
C-bus interface
DD
data retention
8-bit static low-voltage RAM with
supply voltage
supply current
Power-on reset voltage
LOW level input voltage
HIGH level input voltage
LOW level output current
input leakage current
input leakage current
input capacitance
supply voltage for data retention
supply current
supply current
recovery time
standby mode
operating mode
SS
PARAMETER
= 0 V; T
amb
= 40 to +85 C; unless otherwise specified.
2
C-bus logic when V
V
f
T
V
f
note 1
note 2
note 2
V
V
V
V
V
V
T
TEST = V
SCL
SCL
amb
amb
I
I
OL
I
I
I
DDR
DDR
= V
= V
= V
= V
= V
= 0.4 V
= 0 Hz;
= 100 Hz
= 25 to +70 C
= 25 to +70 C
= 1 V
= 1 V;
DD
DD
DD
DD
SS
CONDITIONS
or V
or V
or V
or V
DD
9
; T
SS
SS
SS
SS
DD
amb
;
;
< V
= 25 C
POR
. The status of the device after a Power-on reset
2.5
1.5
0.7V
3
1
0.8
1
250
MIN.
DD
DD
or V
SS
1.9
50
50
an input current will flow; this
TYP.
Product specification
6.0
5
200
2.3
0.3V
V
+1
+250
7
6
5
2
400
DD
MAX.
PCF8570
+ 0.8 V
DD
V
V
V
mA
nA
pF
V
nA
A
A
A
A
A
s
UNIT