PCF8584P,112 NXP Semiconductors, PCF8584P,112 Datasheet - Page 15

IC CTRL PARALLEL/I2C BUS 20-DIP

PCF8584P,112

Manufacturer Part Number
PCF8584P,112
Description
IC CTRL PARALLEL/I2C BUS 20-DIP
Manufacturer
NXP Semiconductors
Datasheet

Specifications of PCF8584P,112

Package / Case
20-DIP (0.300", 7.62mm)
Controller Type
Parallel Bus to I²C Bus Controller
Interface
Parallel
Voltage - Supply
4.5 V ~ 5.5 V
Current - Supply
1.5mA
Operating Temperature
-40°C ~ 85°C
Mounting Type
Through Hole
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Mounting Style
Through Hole
Operating Supply Voltage
4.5 V to 5.5 V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Other names
568-3532-5
935069300112
PCF8584PN
Philips Semiconductors
1997 Oct 21
handbook, full pagewidth
I
2
C-bus controller
PCF8584 resets to
slave receiver mode
parallel bus interface
determined by
PCF8584 (80XX/68XXX)
initialization of
PCF8584 completed
message to synchronize
equal to the longest I
BB-bit. (multimaster
delay: wait a time
30 clock cycles
reset minimum
send byte A0H
send byte 1CH
send byte C1H
send byte 80H
send byte 55H
systems only
Fig.5 PCF8584 initialization sequence.
START
END
2
C
address line A0
A0 = HIGH
A0 = LOW
A0 = HIGH
A0 = HIGH
A0 = LOW
power-on
15
Loads byte 80H into register S1'
i.e. next byte will be loaded into register S0'
(own address register); serial interface off.
Loads byte 55H into register S0';
effective own address becomes AAH.
Loads byte A0H into register S1, i.e. next byte
will be loaded into the clock control register S2.
Loads byte 1CH into register S2;
system clock is 12 MHz; SCL = 90 kHz.
Loads byte C1H into register S1; register enable
serial interface, set I
SDA and SCL are HIGH. The next write or read
operation will be to/from data transfer register
S0 if A0 = LOW.
On power-on, if an PCF8584 node is powered-up
slightly after another node has already begun an
I
not have been detected. Thus, introducing this
delay will insure that this condition will not occur.
2
A0 = HIGH
A0 = LOW
C-bus transmission, the bus busy condition will
enables data transfer to/from
register S1
Access to all other registers
defined by the bit pattern in
register S1
2
C-bus into idle mode;
Product specification
MBE714
PCF8584

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