PCF8579T NXP Semiconductors, PCF8579T Datasheet - Page 3

• 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

NXP Semiconductors
6. Block diagram
PCF8579_5
Product data sheet
Fig 1.
V
TEST
SDA
V
V
LCD
SCL
SS
DD
V
V
(1) Operates at LCD voltage levels, all other blocks operate at logic levels.
A3
A2
A1
A0
3
4
Block diagram
POWER-ON
RESET
n.c.
FILTERS
INPUT
SUBADDRESS
COUNTER
CONTROLLER
I
2
C-BUS
SA0
AND SENSING
Y DECODER
AMPLIFIERS
Rev. 05 — 11 May 2009
RAM DATA POINTER
Y
COMMAND
LCD column driver for dot matrix graphic displays
DECODER
DISPLAY RAM
CONTROLLER
COLUMN
X DECODER
DRIVERS
32
OUTPUT
C39 - C0
X
40 BIT
(1)
DECODER
DISPLAY
PCF8579
GENERATOR
TIMING
PCF8579
© NXP B.V. 2009. All rights reserved.
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SYNC
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