PCF8579T NXP Semiconductors, PCF8579T Datasheet - Page 22

• 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 17. RAM access mode
4 bytes
2 bytes
4 bytes
1 byte
RAM
0
0
1
0
1
2
3
1
2
3
4
5
6 10 14 18 22 26 30 34 38 42 46
7 11 15 19 23 27 31 35 39 43 47
PCF8578/PCF8579
RAM data bytes are
2
4
5
8 12 16 20 24 28 32 36 40 44
9 13 17 21 25 29 33 37 41 45
written or read as
indicated above
3
6
7
driver 1
40-bits
4 5
8 10 12 14 16 18 20 22
9 11 13 15 17 19 21 23
6
7
8
9 10 11
PCF8579
driver 2
1
PCF8578/PCF8579 system RAM
k
16
half-graphic mode
full-graphic mode
character mode
driver k
msa849
bank 0
bank 1
bank 2
bank 3
MSB
LSB