PCA8581CT/6,118 [NXP]

PCA8581CT;
PCA8581CT/6,118
型号: PCA8581CT/6,118
厂家: NXP    NXP
描述:

PCA8581CT

可编程只读存储器 电动程控只读存储器 电可擦编程只读存储器 PC 双倍数据速率 光电二极管 内存集成电路
文件: 总20页 (文件大小:108K)
中文:  中文翻译
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INTEGRATED CIRCUITS  
DATA SHEET  
PCA8581; PCA8581C  
128 × 8-bit EEPROM with I2C-bus  
interface  
1997 Apr 02  
Product specification  
Supersedes data of 1996 Aug 19  
File under Integrated Circuits, IC12  
Philips Semiconductors  
Product specification  
128 × 8-bit EEPROM with I2C-bus interface  
PCA8581; PCA8581C  
CONTENTS  
1
2
3
4
5
6
7
FEATURES  
GENERAL DESCRIPTION  
QUICK REFERENCE DATA  
ORDERING INFORMATION  
BLOCK DIAGRAM  
PINNING  
CHARACTERISTICS OF THE I2C-BUS  
7.1  
7.2  
7.3  
7.4  
7.5  
Bit transfer  
Start and stop conditions  
System configuration  
Acknowledge  
I2C-bus protocol  
8
LIMITING VALUES  
9
HANDLING  
10  
11  
12  
DC CHARACTERISTICS  
AC CHARACTERISTICS  
APPLICATION INFORMATION  
12.2  
12.2  
12.3  
Application example  
Slave address  
Diode protection  
13  
14  
PACKAGE OUTLINES  
SOLDERING  
14.1  
Introduction  
14.2  
DIP  
14.2.1  
14.2.2  
14.3  
Soldering by dipping or by wave  
Repairing soldered joints  
SO  
14.3.1  
14.3.2  
14.3.3  
Reflow soldering  
Wave soldering  
Repairing soldered joints  
15  
16  
17  
DEFINITIONS  
LIFE SUPPORT APPLICATIONS  
PURCHASE OF PHILIPS I2C COMPONENTS  
1997 Apr 02  
2
Philips Semiconductors  
Product specification  
128 × 8-bit EEPROM with I2C-bus interface  
PCA8581; PCA8581C  
1
FEATURES  
2
GENERAL DESCRIPTION  
Operating supply voltage:  
– 4.5 to 5.5 V (PCA8581)  
– 2.5 to 6.0 V (PCA8581C)  
The PCA8581 and PCA8581C are low power CMOS  
EEPROMs with standard and wide operating voltages:  
4.5 to 5.5 V (PCA8581)  
2.5 to 6.0 V (PCA8581C).  
Integrated voltage multiplier and timer for writing  
(no external components required)  
In the following text, the generic term ‘PCA8581’ is used to  
refer to both types in all packages except when otherwise  
specified.  
Automatic erase before write  
Low standby current; maximum 10 µA  
8-byte page write mode  
The PCA8581 is organized as 128 words of 8-bytes.  
Serial input/output bus (I2C-bus)  
Addresses and data are transferred serially via a two-line  
bidirectional bus (I2C-bus). The built-in word address  
register is incremented automatically after each written or  
read data byte. All bytes can be read in a single operation.  
Up to 8 bytes can be written in one operation, reducing the  
total write time per byte. Three address pins, A0, A1 and  
A2 are used to define the hardware address, allowing the  
use of up to 8 devices connected to the bus without  
additional hardware.  
Address by 3 hardware address pins  
Automatic word address incrementing  
Designed for minimum 10000 write cycles per byte  
10 years minimum non-volatile data retention  
Infinite number of read cycles  
Pin and address compatibility to PCF8570C and  
PCF8582  
Operating ambient temperature: 25 to +85 °C.  
3
QUICK REFERENCE DATA  
SYMBOL  
VDD  
PARAMETER  
CONDITIONS  
MIN.  
MAX.  
UNIT  
supply voltage  
PCA8581  
4.5  
5.5  
V
V
PCA8581C  
2.5  
6.0  
IDD  
supply current (standby)  
operating ambient temperature  
storage temperature  
fSCL = 0 Hz  
10  
µA  
°C  
°C  
°C  
Tamb  
Tstg  
25  
65  
65  
+85  
+150  
+85  
without EEPROM retention  
with EEPROM retention  
4
ORDERING INFORMATION  
PACKAGE  
TYPE  
NUMBER  
NAME  
DIP8  
DIP8  
SO8  
DESCRIPTION  
plastic dual in-line package; 8 leads (300 mil)  
plastic dual in-line package; 8 leads (300 mil)  
VERSION  
SOT97-1  
SOT97-1  
SOT96-1  
SOT96-1  
PCA8581P  
PCA8581CP  
PCA8581T  
PCA8581CT  
plastic small outline package; 8 leads; body width 3.9 mm  
plastic small outline package; 8 leads; body width 3.9 mm  
SO8  
1997 Apr 02  
3
Philips Semiconductors  
Product specification  
128 × 8-bit EEPROM with I2C-bus interface  
PCA8581; PCA8581C  
5
BLOCK DIAGRAM  
VOLTAGE  
MULTIPLIER  
TIMER  
PCA8581  
PCA8581C  
WORD  
ADDRESS  
REGISTER  
MEMORY  
CELL  
ARRAY  
ROW  
SELECT  
7
1
2
3
A0  
A1  
A2  
6
5
2
SCL  
SDA  
INPUT  
FILTER  
COLUMN  
SELECT  
I C BUS  
MULTIPLEXER  
CONTROL  
8
SHIFT  
REGISTER  
R/W  
CONTROL  
POWER  
ON  
8
V
DD  
RESET  
4
7
V
SS  
TEST  
MLB887  
Fig.1 Block diagram.  
6
PINNING  
SYMBOL  
PIN  
DESCRIPTION  
A0  
1
2
3
4
5
6
7
hardware address input 0  
hardware address input 1  
hardware address input 2  
negative supply  
fpage  
V
A0  
A1  
A2  
1
2
3
4
8
7
6
5
DD  
A1  
TEST  
SCL  
A2  
PCA8581  
PCA8581C  
VSS  
SDA  
SCL  
TEST  
serial data input/output  
serial clock input  
V
SDA  
SS  
MLB888  
test output can be connected to VSS, VDD or left  
open-circuit  
Fig.2 Pin configuration.  
VDD  
8
positive supply  
1997 Apr 02  
4
Philips Semiconductors  
Product specification  
128 × 8-bit EEPROM with I2C-bus interface  
PCA8581; PCA8581C  
CHARACTERISTICS OF THE I2C-BUS  
7.1  
Bit transfer  
7
The I2C-bus is for bidirectional, two-line communication  
between different ICs or modules. The two lines are a  
serial data line (SDA) and a serial clock line (SCL). Both  
lines must be connected to a positive supply via a pull-up  
resistor. Data transfer may be initiated only when the bus  
is not busy.  
One data bit is transferred during each clock pulse.  
The data on the SDA line must remain stable during the  
HIGH period of the clock pulse as changes in the data line  
at this time will be interpreted as a control signal.  
SDA  
SCL  
data line  
stable;  
data valid  
change  
of data  
allowed  
MBA607  
Fig.3 Bit transfer.  
7.2  
Start and stop conditions  
Both data and clock lines remain HIGH when the bus is not busy. A HIGH-to-LOW transition of the data line, while the  
clock is HIGH is defined as the start condition (S). A LOW-to-HIGH transition of the data line while the clock is HIGH is  
defined as the stop condition (P).  
SDA  
SCL  
SDA  
SCL  
S
P
STOP condition  
START condition  
MBA608  
Fig.4 Definition of START and STOP conditions.  
1997 Apr 02  
5
Philips Semiconductors  
Product specification  
128 × 8-bit EEPROM with I2C-bus interface  
PCA8581; PCA8581C  
7.3  
System configuration  
A device generating a message is a ‘transmitter’, a device receiving a message is the ‘receiver’. The device that controls  
the message is the ‘master’ and the devices which are controlled by the master are the ‘slaves’.  
SDA  
SCL  
MASTER  
TRANSMITTER /  
RECEIVER  
SLAVE  
TRANSMITTER /  
RECEIVER  
MASTER  
TRANSMITTER /  
RECEIVER  
SLAVE  
RECEIVER  
MASTER  
TRANSMITTER  
MBA605  
Fig.5 System configuration.  
The device that acknowledges must pull down the SDA  
line during the acknowledge clock pulse, so that the SDA  
line is stable LOW during the HIGH period of the  
acknowledge related clock pulse (set-up and hold times  
must be taken into consideration). A master receiver must  
signal an end of data to the transmitter by not generating  
an acknowledge on the last byte that has been clocked out  
of the slave. In this event the transmitter must leave the  
data line HIGH to enable the master to generate a stop  
condition.  
7.4  
Acknowledge  
The number of data bytes transferred between the start  
and stop conditions from transmitter to receiver is  
unlimited. Each byte of eight bits is followed by an  
acknowledge bit. The acknowledge bit is a HIGH level  
signal put on the bus by the transmitter during which time  
the master generates an extra acknowledge related clock  
pulse. A slave receiver which is addressed must generate  
an acknowledge after the reception of each byte. Also a  
master receiver must generate an acknowledge after the  
reception of each byte that has been clocked out of the  
slave transmitter.  
clock pulse for  
acknowledgement  
START  
condition  
SCL FROM  
MASTER  
2
9
1
8
DATA OUTPUT  
BY TRANSMITTER  
S
DATA OUTPUT  
BY RECEIVER  
MBA606 - 1  
Fig.6 Acknowledgement on the I2C-bus.  
1997 Apr 02  
6
Philips Semiconductors  
Product specification  
128 × 8-bit EEPROM with I2C-bus interface  
PCA8581; PCA8581C  
7.5  
I2C-bus protocol  
Before any data is transmitted on the I2C-bus, the device which should respond is addressed first. The addressing is  
always carried out with the first byte transmitted after the start procedure. The I2C-bus configuration for the different  
PCA8581 WRITE and READ cycles is shown in Figs 7, 9 and 10.  
acknowledgement  
from slave  
acknowledgement  
from slave  
acknowledgement  
from slave  
S
SLAVE ADDRESS  
0
A
X
WORD ADDRESS  
A
DATA  
A
P
WRITING  
t
don't  
care  
R/W  
n bytes  
WR  
auto increment  
memory word address  
MLB889  
Fig.7 Master transmits to slave receiver (WRITE) mode.  
After the word address, one-to-eight data bytes can be sent. The address is automatically incremented, but the four  
highest address bits (row) are internally latched. Therefore all bytes are written in the same row.  
An example of writing eight bytes with word address X 0 0 0 0 0 0 0 and six bytes with word address X 0 0 1 0 1 0 1 is  
shown in Fig.8.  
(1)  
Word Address  
Row  
X0000000  
X0001...  
0
1
2
3
1
4
2
5
3
6
4
5
6
1
7
2
8
3
X0010101  
X0011...  
column  
0
1
2
3
4
5
6
7
MLB890  
(1) X = don’t care.  
Fig.8 Writing eight and six bytes with different word addresses.  
7
1997 Apr 02  
Philips Semiconductors  
Product specification  
128 × 8-bit EEPROM with I2C-bus interface  
PCA8581; PCA8581C  
To transmit eight bytes in sequential order, begin with the lowest address bits 0 0 0. The data is written after a stop is  
detected. The data is only written if complete bytes have been received and acknowledged. Writing takes a time tWR  
(6 to 10 ms) during which the device will not respond to its slave address. Note that to write the next row, a new write  
operation is required (start, slave address, row address, data and stop).  
acknowledgement  
from slave  
acknowledgement  
from slave  
acknowledgement  
from slave  
acknowledgement  
from master  
S
SLAVE ADDRESS  
0
A
X
WORD ADDRESS  
A
S
SLAVE ADDRESS  
1
A
DATA  
A
n bytes  
R/W don't  
care  
R/W  
at this moment master -  
transmitter becomes  
auto increment  
memory word address  
master - receiver and  
PCA8581(C) slave - receiver  
becomes slave - transmitter  
no acknowledgement  
from master  
DATA  
1
P
last byte  
auto increment  
memory word address  
MLB891  
Fig.9 Master reads after setting word address (WRITE word address; READ data).  
acknowledgement  
from slave  
acknowledgement  
from slave  
acknowledgement  
from slave  
1
A
A
DATA  
1
P
S
SLAVE ADDRESS  
DATA  
R/W  
n bytes  
last bytes  
auto increment  
word address  
auto increment  
word address  
MBD824  
Fig.10 Master reads slave immediately after first byte (READ mode).  
An unlimited number of data bytes can be read in one operation. The address is automatically incremented. If a read  
without setting the word address is performed after a write operation, the address pointer may point at a byte in the row  
after the previously written row. This occurs if, during writing, the three lowest address bits (column) rolled over.  
1997 Apr 02  
8
Philips Semiconductors  
Product specification  
128 × 8-bit EEPROM with I2C-bus interface  
PCA8581; PCA8581C  
8
LIMITING VALUES  
In accordance with the Absolute Maximum Rating System (IEC 134).  
SYMBOL  
PARAMETER  
supply voltage (pin 8)  
CONDITIONS  
MIN.  
0.3  
MAX.  
+7.0  
UNIT  
VDD  
VI  
V
V
input voltage (any input)  
DC input current  
measured via a 500 resistor  
0.8  
VDD + 0.8  
±10  
II  
mA  
mA  
mW  
mW  
°C  
IO  
DC output current  
±10  
Ptot  
PO  
Tamb  
Tstg  
total power dissipation per package  
power dissipation per output  
operating ambient temperature  
storage temperature  
150  
50  
25  
65  
65  
+85  
without EEPROM retention  
with EEPROM retention  
+150  
+85  
°C  
°C  
9
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”.  
1997 Apr 02  
9
Philips Semiconductors  
Product specification  
128 × 8-bit EEPROM with I2C-bus interface  
PCA8581; PCA8581C  
10 DC CHARACTERISTICS  
VDD = 2.5 to 6.0 V (PCA8581C); VDD = 4.5 to 5.5 V (PCA8581); VSS = 0 V; Tamb = 25 to +85 °C; note 1; unless  
otherwise specified.  
SYMBOL  
PARAMETER  
CONDITIONS  
MIN.  
TYP.  
MAX.  
UNIT  
Supply  
VDD  
supply voltage  
PCA8581C  
PCA8581  
2.5  
6.0  
V
V
4.5  
5.5  
IDD  
supply current  
standby mode  
during read cycle  
during write cycle  
f
SCL = 0 Hz; VIL = 0 V; VIH = VDD  
10  
µA  
µA  
µA  
fSCL = 100 Hz; VIL = 0 V; VIH = VDD  
VIL = 0 V; VIH = VDD  
400  
1000  
Inputs A0, A1, A2, SDA and SCL  
VIL  
VIH  
ILI  
LOW level input voltage  
HIGH level input voltage  
input leakage current  
input capacitance  
0.3VDD  
V
0.7VDD  
1
7
V
VI = VDD or VSS  
VI = VSS  
µA  
pF  
Ci  
Output SDA  
IOL  
LOW level output current VOL = 0.4 V  
3
mA  
Erase/write data  
tWR  
write time  
data retention time  
7
10  
ms  
tRET  
10  
years  
Note  
1. The PCA8581C is guaranteed to be programmed with all locations ‘FF’ (hexadecimal) provided the device has been  
stored within the temperature limits 65 to +85 °C.  
1997 Apr 02  
10  
Philips Semiconductors  
Product specification  
128 × 8-bit EEPROM with I2C-bus interface  
PCA8581; PCA8581C  
11 AC CHARACTERISTICS  
All timing values are valid within the operating supply voltage and ambient temperature range and reference to VIL and  
VIH with an input voltage swing of VSS to VDD  
.
SYMBOL  
PARAMETER  
MIN.  
TYP.  
MAX.  
UNIT  
I2C-bus timing (see Fig.11; note 1)  
fSCL  
SCL clock frequency  
100  
kHz  
tSP  
tolerable spike width on bus  
bus free time  
100  
ns  
µs  
µs  
µs  
µs  
µs  
µs  
µs  
ns  
ns  
µs  
µs  
tBUF  
4.7  
4.7  
4.0  
4.7  
4.0  
tSU;STA  
tHD;STA  
tLOW  
tHIGH  
tr  
START condition set-up time  
START condition hold time  
SCL LOW time  
SCL HIGH time  
SCL and SDA rise time  
SCL and SDA fall time  
data set-up time  
1.0  
0.3  
tf  
tSU;DAT  
tHD;DAT  
tVD;DAT  
tSU;STO  
250  
0
data hold time  
SCL LOW to data out valid  
STOP condition set-up time  
3.4  
4.0  
Note  
1. A detailed description of the I2C-bus specification, with applications, is given in brochure “The I2C-bus and how to  
use it”. This brochure may be ordered using the code 9398 393 40011.  
START  
CONDITION  
(S)  
BIT 7  
MSB  
(A7)  
BIT 6  
(A6)  
BIT 0  
LSB  
(R/W)  
ACKNOWLEDGE  
(A)  
STOP  
CONDITION  
(P)  
PROTOCOL  
t
t
t
HIGH  
SU;STA  
LOW  
1 / f  
SCL  
SCL  
SDA  
t
t
t
f
BUF  
r
t
t
t
t
t
HD;STA  
SU;DAT  
VD;DAT  
SU;STO  
HD;DAT  
MBD820  
Fig.11 I2C-bus timing diagram; rise and fall times refer to VIL and VIH.  
1997 Apr 02  
11  
Philips Semiconductors  
Product specification  
128 × 8-bit EEPROM with I2C-bus interface  
PCA8581; PCA8581C  
12 APPLICATION INFORMATION  
12.1 Application example  
V
DD  
SDA  
SCL  
MASTER  
TRANSMITTER/  
RECEIVER  
V
DD  
0
SCL  
A0  
A1  
A2  
0
0
PCA8581/PCA8581C  
'1010'  
SDA  
V
SS  
TEST  
V
DD  
1
0
0
V
SCL  
A0  
A1  
A2  
DD  
PCA8581/PCA8581C  
'1010'  
SDA  
V
SS  
TEST  
V
DD  
1
1
1
V
V
V
SCL  
A0  
A1  
A2  
DD  
DD  
DD  
PCA8581/PCA8581C  
'1010'  
V
DD  
SDA  
V
SS  
TEST  
R
R
R: pull up resistor  
t
r
R =  
C
BUS  
SDA SCL  
MLB893  
2
(I C bus)  
Inputs A0, A1 and A2 must be connected to VDD of VSS but not left open-circuit.  
Fig.12 Application diagram.  
12  
1997 Apr 02  
Philips Semiconductors  
Product specification  
128 × 8-bit EEPROM with I2C-bus interface  
PCA8581; PCA8581C  
12.2 Slave address  
The PCA8581 has a fixed combination 1 0 1 0 as group 1, while group 2 is fully programmable (see Fig.13).  
handbook, halfpage  
1
0
1
0
A2 A1 A0 R/W  
group 2  
group 1  
MLB892  
Fig.13 Slave address.  
12.3 Diode protection  
handbook, halfpage  
V
A0  
A1  
A2  
DD  
TEST  
SCL  
V
SDA  
SS  
substrate  
MLB894  
There is no connection between SCL and VDD, and SDA and VDD; this allows powering down the device without affecting I2C-bus operation.  
Fig.14 Device diode protection.  
1997 Apr 02  
13  
Philips Semiconductors  
Product specification  
128 × 8-bit EEPROM with I2C-bus interface  
PCA8581; PCA8581C  
13 PACKAGE OUTLINES  
DIP8: plastic dual in-line package; 8 leads (300 mil)  
SOT97-1  
D
M
E
A
2
A
A
1
L
c
w M  
Z
b
1
e
(e )  
1
M
H
b
b
2
8
5
pin 1 index  
E
1
4
0
5
10 mm  
scale  
DIMENSIONS (inch dimensions are derived from the original mm dimensions)  
(1)  
A
A
A
2
(1)  
(1)  
Z
1
w
UNIT  
mm  
b
b
b
c
D
E
e
e
L
M
M
H
1
2
1
E
max.  
min.  
max.  
max.  
1.73  
1.14  
0.53  
0.38  
1.07  
0.89  
0.36  
0.23  
9.8  
9.2  
6.48  
6.20  
3.60  
3.05  
8.25  
7.80  
10.0  
8.3  
4.2  
0.51  
3.2  
2.54  
0.10  
7.62  
0.30  
0.254  
0.01  
1.15  
0.068 0.021 0.042 0.014  
0.045 0.015 0.035 0.009  
0.39  
0.36  
0.26  
0.24  
0.14  
0.12  
0.32  
0.31  
0.39  
0.33  
inches  
0.17  
0.020  
0.13  
0.045  
Note  
1. Plastic or metal protrusions of 0.25 mm maximum per side are not included.  
REFERENCES  
OUTLINE  
EUROPEAN  
PROJECTION  
ISSUE DATE  
VERSION  
IEC  
JEDEC  
EIAJ  
92-11-17  
95-02-04  
SOT97-1  
050G01  
MO-001AN  
1997 Apr 02  
14  
Philips Semiconductors  
Product specification  
128 × 8-bit EEPROM with I2C-bus interface  
PCA8581; PCA8581C  
SO8: plastic small outline package; 8 leads; body width 3.9 mm  
SOT96-1  
D
E
A
X
c
y
H
v
M
A
E
Z
5
8
Q
A
2
A
(A )  
3
A
1
pin 1 index  
θ
L
p
L
1
4
e
w
M
detail X  
b
p
0
2.5  
5 mm  
scale  
DIMENSIONS (inch dimensions are derived from the original mm dimensions)  
A
(1)  
(1)  
(2)  
UNIT  
A
A
A
b
c
D
E
e
H
L
L
p
Q
v
w
y
Z
θ
1
2
3
p
E
max.  
0.25  
0.10  
1.45  
1.25  
0.49  
0.36  
0.25  
0.19  
5.0  
4.8  
4.0  
3.8  
6.2  
5.8  
1.0  
0.4  
0.7  
0.6  
0.7  
0.3  
mm  
1.27  
0.050  
1.05  
0.041  
1.75  
0.25  
0.01  
0.25  
0.01  
0.25  
0.1  
8o  
0o  
0.010 0.057  
0.004 0.049  
0.019 0.0100 0.20  
0.014 0.0075 0.19  
0.16  
0.15  
0.244  
0.228  
0.039 0.028  
0.016 0.024  
0.028  
0.012  
inches 0.069  
0.01 0.004  
Notes  
1. Plastic or metal protrusions of 0.15 mm maximum per side are not included.  
2. Plastic or metal protrusions of 0.25 mm maximum per side are not included.  
REFERENCES  
OUTLINE  
EUROPEAN  
PROJECTION  
ISSUE DATE  
VERSION  
IEC  
JEDEC  
EIAJ  
95-02-04  
97-05-22  
SOT96-1  
076E03S  
MS-012AA  
1997 Apr 02  
15  
Philips Semiconductors  
Product specification  
128 × 8-bit EEPROM with I2C-bus  
interface  
PCA8581; PCA8581C  
Several techniques exist for reflowing; for example,  
thermal conduction by heated belt. Dwell times vary  
between 50 and 300 seconds depending on heating  
method. Typical reflow temperatures range from  
215 to 250 °C.  
14 SOLDERING  
14.1 Introduction  
There is no soldering method that is ideal for all IC  
packages. Wave soldering is often preferred when  
through-hole and surface mounted components are mixed  
on one printed-circuit board. However, wave soldering is  
not always suitable for surface mounted ICs, or for  
printed-circuits with high population densities. In these  
situations reflow soldering is often used.  
Preheating is necessary to dry the paste and evaporate  
the binding agent. Preheating duration: 45 minutes at  
45 °C.  
14.3.2 WAVE SOLDERING  
This text gives a very brief insight to a complex technology.  
A more in-depth account of soldering ICs can be found in  
our “IC Package Databook” (order code 9398 652 90011).  
Wave soldering techniques can be used for all SO  
packages if the following conditions are observed:  
A double-wave (a turbulent wave with high upward  
pressure followed by a smooth laminar wave) soldering  
technique should be used.  
14.2 DIP  
14.2.1 SOLDERING BY DIPPING OR BY WAVE  
The longitudinal axis of the package footprint must be  
parallel to the solder flow.  
The maximum permissible temperature of the solder is  
260 °C; solder at this temperature must not be in contact  
with the joint for more than 5 seconds. The total contact  
time of successive solder waves must not exceed  
5 seconds.  
The package footprint must incorporate solder thieves at  
the downstream end.  
During placement and before soldering, the package must  
be fixed with a droplet of adhesive. The adhesive can be  
applied by screen printing, pin transfer or syringe  
dispensing. The package can be soldered after the  
adhesive is cured.  
The device may be mounted up to the seating plane, but  
the temperature of the plastic body must not exceed the  
specified maximum storage temperature (Tstg max). If the  
printed-circuit board has been pre-heated, forced cooling  
may be necessary immediately after soldering to keep the  
temperature within the permissible limit.  
Maximum permissible solder temperature is 260 °C, and  
maximum duration of package immersion in solder is  
10 seconds, if cooled to less than 150 °C within  
6 seconds. Typical dwell time is 4 seconds at 250 °C.  
14.2.2 REPAIRING SOLDERED JOINTS  
A mildly-activated flux will eliminate the need for removal  
of corrosive residues in most applications.  
Apply a low voltage soldering iron (less than 24 V) to the  
lead(s) of the package, below the seating plane or not  
more than 2 mm above it. If the temperature of the  
soldering iron bit is less than 300 °C it may remain in  
contact for up to 10 seconds. If the bit temperature is  
between 300 and 400 °C, contact may be up to 5 seconds.  
14.3.3 REPAIRING SOLDERED JOINTS  
Fix the component by first soldering two diagonally-  
opposite end leads. Use only a low voltage soldering iron  
(less than 24 V) applied to the flat part of the lead. Contact  
time must be limited to 10 seconds at up to 300 °C. When  
using a dedicated tool, all other leads can be soldered in  
one operation within 2 to 5 seconds between  
270 and 320 °C.  
14.3 SO  
14.3.1 REFLOW SOLDERING  
Reflow soldering techniques are suitable for all SO  
packages.  
Reflow soldering requires solder paste (a suspension of  
fine solder particles, flux and binding agent) to be applied  
to the printed-circuit board by screen printing, stencilling or  
pressure-syringe dispensing before package placement.  
1997 Apr 02  
16  
Philips Semiconductors  
Product specification  
128 × 8-bit EEPROM with I2C-bus interface  
PCA8581; PCA8581C  
15 DEFINITIONS  
Data sheet status  
Objective specification  
Preliminary specification  
Product specification  
This data sheet contains target or goal specifications for product development.  
This data sheet contains preliminary data; supplementary data may be published later.  
This data sheet contains final product specifications.  
Limiting values  
Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or  
more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation  
of the device at these or at any other conditions above those given in the Characteristics sections of the specification  
is not implied. Exposure to limiting values for extended periods may affect device reliability.  
Application information  
Where application information is given, it is advisory and does not form part of the specification.  
16 LIFE SUPPORT APPLICATIONS  
These products are not designed for use in life support appliances, devices, or systems where malfunction of these  
products can reasonably be expected to result in personal injury. Philips customers using or selling these products for  
use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such  
improper use or sale.  
17 PURCHASE OF PHILIPS I2C COMPONENTS  
Purchase of Philips I2C components conveys a license under the Philips’ I2C patent to use the  
components in the I2C system provided the system conforms to the I2C specification defined by  
Philips. This specification can be ordered using the code 9398 393 40011.  
1997 Apr 02  
17  
Philips Semiconductors  
Product specification  
128 × 8-bit EEPROM with I2C-bus interface  
PCA8581; PCA8581C  
NOTES  
1997 Apr 02  
18  
Philips Semiconductors  
Product specification  
128 × 8-bit EEPROM with I2C-bus interface  
PCA8581; PCA8581C  
NOTES  
1997 Apr 02  
19  
Philips Semiconductors – a worldwide company  
Argentina: see South America  
Netherlands: Postbus 90050, 5600 PB EINDHOVEN, Bldg. VB,  
Tel. +31 40 27 82785, Fax. +31 40 27 88399  
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Austria: Computerstr. 6, A-1101 WIEN, P.O. Box 213,  
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Brazil: see South America  
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Tel. +48 22 612 2831, Fax. +48 22 612 2327  
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Romania: see Italy  
Canada: PHILIPS SEMICONDUCTORS/COMPONENTS,  
Tel. +1 800 234 7381  
Russia: Philips Russia, Ul. Usatcheva 35A, 119048 MOSCOW,  
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Singapore: Lorong 1, Toa Payoh, SINGAPORE 1231,  
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Colombia: see South America  
Czech Republic: see Austria  
Slovakia: see Austria  
Slovenia: see Italy  
Denmark: Prags Boulevard 80, PB 1919, DK-2300 COPENHAGEN S,  
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Tel. +55 11 821 2333, Fax. +55 11 829 1849  
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Tel. +33 1 40 99 6161, Fax. +33 1 40 99 6427  
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Tel. +34 3 301 6312, Fax. +34 3 301 4107  
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Tel. +49 40 23 53 60, Fax. +49 40 23 536 300  
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Tel. +46 8 632 2000, Fax. +46 8 632 2745  
Greece: No. 15, 25th March Street, GR 17778 TAVROS/ATHENS,  
Tel. +30 1 4894 339/239, Fax. +30 1 4814 240  
Switzerland: Allmendstrasse 140, CH-8027 ZÜRICH,  
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Hungary: see Austria  
India: Philips INDIA Ltd, Shivsagar Estate, A Block, Dr. Annie Besant Rd.  
Worli, MUMBAI 400 018, Tel. +91 22 4938 541, Fax. +91 22 4938 722  
Taiwan: Philips Semiconductors, 6F, No. 96, Chien Kuo N. Rd., Sec. 1,  
TAIPEI, Taiwan Tel. +886 2 2134 2870, Fax. +886 2 2134 2874  
Indonesia: see Singapore  
Thailand: PHILIPS ELECTRONICS (THAILAND) Ltd.,  
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Tel. +66 2 745 4090, Fax. +66 2 398 0793  
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Tel. +353 1 7640 000, Fax. +353 1 7640 200  
Israel: RAPAC Electronics, 7 Kehilat Saloniki St, TEL AVIV 61180,  
Tel. +972 3 645 0444, Fax. +972 3 649 1007  
Turkey: Talatpasa Cad. No. 5, 80640 GÜLTEPE/ISTANBUL,  
Tel. +90 212 279 2770, Fax. +90 212 282 6707  
Italy: PHILIPS SEMICONDUCTORS, Piazza IV Novembre 3,  
20124 MILANO, Tel. +39 2 6752 2531, Fax. +39 2 6752 2557  
Ukraine: PHILIPS UKRAINE, 4 Patrice Lumumba str., Building B, Floor 7,  
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Japan: Philips Bldg 13-37, Kohnan 2-chome, Minato-ku, TOKYO 108,  
Tel. +81 3 3740 5130, Fax. +81 3 3740 5077  
United Kingdom: Philips Semiconductors Ltd., 276 Bath Road, Hayes,  
MIDDLESEX UB3 5BX, Tel. +44 181 730 5000, Fax. +44 181 754 8421  
Korea: Philips House, 260-199 Itaewon-dong, Yongsan-ku, SEOUL,  
Tel. +82 2 709 1412, Fax. +82 2 709 1415  
United States: 811 East Arques Avenue, SUNNYVALE, CA 94088-3409,  
Tel. +1 800 234 7381  
Malaysia: No. 76 Jalan Universiti, 46200 PETALING JAYA, SELANGOR,  
Tel. +60 3 750 5214, Fax. +60 3 757 4880  
Uruguay: see South America  
Vietnam: see Singapore  
Mexico: 5900 Gateway East, Suite 200, EL PASO, TEXAS 79905,  
Tel. +9-5 800 234 7381  
Yugoslavia: PHILIPS, Trg N. Pasica 5/v, 11000 BEOGRAD,  
Tel. +381 11 625 344, Fax.+381 11 635 777  
Middle East: see Italy  
For all other countries apply to: Philips Semiconductors, Marketing & Sales Communications,  
Internet: http://www.semiconductors.philips.com  
Building BE-p, P.O. Box 218, 5600 MD EINDHOVEN, The Netherlands, Fax. +31 40 27 24825  
© Philips Electronics N.V. 1997  
SCA53  
All rights are reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner.  
The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed  
without notice. No liability will be accepted by the publisher for any consequence of its use. Publication thereof does not convey nor imply any license  
under patent- or other industrial or intellectual property rights.  
Printed in The Netherlands  
417067/1200/03/pp20  
Date of release: 1997 Apr 02  
Document order number: 9397 750 01747  

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