Datasheet

1. General description
The PCF8577C is an LCD driver which drives up to 32 segments directly, or 64 segments
in a duplex configuration.
The two-line I
2
C-bus interface substantially reduces wiring overheads in remote display
applications. I
2
C-bus traffic is minimized in multiple IC applications by automatic address
incrementing, hardware subaddressing and display memory switching (direct drive
mode).To allow partial V
DD
shutdown, the ESD protection system of the SCL and SDA
pins does not use a diode connected to V
DD
.
For a selection of NXP LCD segment drivers, see Table 13 on page 25
.
2. Features and benefits
 Direct/duplex drive modes with up to 32/64 LCD-segment drive capability per device
 Operating supply voltage: 2.5 V to 6 V
 Low power consumption
 I
2
C-bus interface
 Optimized pinning for single plane wiring
 Single-pin built-in oscillator
 Auto-incremented loading across device subaddress boundaries
 Display memory switching in direct drive mode
 May be used as I
2
C-bus output expander
 System expansion up to 256 segments
 Power-on reset blanks display
 I
2
C-bus address: 0111 0100.
3. Ordering information
PCF8577C
LCD direct/duplex driver with I²C-bus interface
Rev. 5 — 10 October 2014 Product data sheet
Table 1. Ordering information
Type number Package
Name Description Version
PCF8577CT VSO40 plastic very small outline package; 40
leads
SOT158-1