PCF8579T NXP Semiconductors, PCF8579T Datasheet - Page 21

• Manufacturer Part Number: PCF8579T
• Manufacturer: NXP Semiconductors

Specifications of PCF8579T

• Operating Supply Voltage (typ): 3.3/5V
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Industrial
• Package Type: VSO
• Pin Count: 56
• Mounting: Surface Mount
• Power Dissipation: 400mW
• Operating Supply Voltage (min): 2.5V
• Operating Supply Voltage (max): 6V
• Lead Free Status / Rohs Status: Not Compliant

Fig 16. Example of commands specifying initial data byte RAM locations
RAM ACCESS:
character mode
bank 1
S 0 1 1 1 1 0
slave address
LOAD X-ADDRESS: X-address = 8
S
A
0
R W
/
0 A
DEVICE SELECT:
subaddress 12
1
DEVICE SELECT
1 1 0 1 1 0
0
A
LOAD X-ADDRESS
1
RAM
0 0 0 1 0 0
last command
0
A
0
RAM ACCESS
1 1 1 0 0 0
bank 0
bank 1
bank 2
bank 3
1
A
READ
WRITE
S 0 1 1 1 1 0
slave address
DATA
S
A
0
R W
/
A
1 A
DATA
DATA
A
msa835
A