PCF8578H NXP Semiconductors, PCF8578H Datasheet - Page 20

• Manufacturer Part Number: PCF8578H
• Manufacturer: NXP Semiconductors

Specifications of PCF8578H

• Operating Supply Voltage (typ): 3.3/5V
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Industrial
• Package Type: LQFP
• Pin Count: 64
• Mounting: Surface Mount
• Power Dissipation: 400mW
• Operating Supply Voltage (min): 2.5V
• Operating Supply Voltage (max): 6V
• Lead Free Status / Rohs Status: Compliant

Philips Semiconductors
2003 Apr 14
LCD row/column driver for
dot matrix graphic displays
Fig.13 (a) Master transmits to slave receiver (WRITE mode); (b) Master reads after sending command string
S
0 1 1 1 1 0
(WRITE commands; READ data); (c) Master reads slave immediately after sending slave address (READ
mode).
slave address
S
A
0
R W
MSA831
S
0 A C
/
S
0 1 1 1 1 0
0 1 1 1 1 0
slave address
slave address
1 byte
n
COMMAND
1 byte
PCF8578s / PCF8579s
PCF8578s / PCF8579s
acknowledge by
S
A
all addressed
0
acknowledge by
R W
S
A
0
all addressed
R W
/
0 A C
/
1 A
A
S
at this moment master
transmitter becomes a
master receiver and
PCF8578/PCF8579 slave
receiver becomes a
slave transmitter
PCF8578s / PCF8579s
0 1 1 1 1 0
acknowledge by
all addressed
n
slave address
COMMAND
0 byte(s)
n bytes
DATA
(b)
(a)
20
(c)
S
A
0
acknowledge
R W
from master
1 A
/
A
A
DISPLAY DATA
update data pointers
subaddress counter
n
MSA830
and if necessary,
n bytes
DATA
acknowledge
last byte
from master
0 byte(s)
DATA
by A0, A1, A2 and A3
selected PCF8578s /
update data pointers
subaddress counter
PCF8579s only
and if necessary,
no acknowledge
acknowledge
from master
A
A
1
update data pointers
subaddress counter
P
and if necessary
P
no acknowledge
last byte
from master
DATA
Product specification
PCF8578
1
MSA832
P