Datasheet

52
42023GS–SAM–03/2014
ATSAM4L8/L4/L2
connected to an external voltage source (1.8-3.6V). LCDB cluster is not available in 64 and 48
pin packages
Table 6-1. LCD powering when using the internal voltage pump
Package
Segments
in use
VDDIO
LCDB
VDDIO
LCDC
100-pin packages
[1,24] 1.8-3.6V 1.8-3.6V
[1, 32] nc 1.8-3.6V
[1, 40] nc nc
64-pin packages
[1,15] - 1.8-3.6V
[1, 23]
-nc
48-pin packages
[1,9] - 1.8-3.6V
[1,13]
-nc
VLCDIN
GND
GPIOs
LCD
VPUMP
CAPH
CAPL
BIASH
BIASL
VLCD
VDDIO
LCDB DOMAIN
GPIOs
VDDIO
GPIOs
LCDC DOMAIN
Switch onSwitch on
nc
nc
1.8–3.6V
VLCDIN
GND
GPIOs
LCD
VPUMP
CAPH
CAPL
BIASH
BIASL
VLCD
VDDIO
LCDB DOMAIN
GPIOs
VDDIO
GPIOs
LCDC DOMAIN
Switch onSwitch off
nc
1.8–3.6V
VLCDIN
GND
GPIOs
LCD
VPUMP
CAPH
CAPL
BIASH
BIASL
VLCD
VDDIO
LCDB DOMAIN
GPIOs
VDDIO
GPIOs
LCDC DOMAIN
Switch offSwitch off
1.8–3.6V
1.8–3.6V
LCDA DOMAIN LCDA DOMAIN LCDA DOMAIN
1.8–3.6V
Up to 4x40 segments
No GPIO in LCD
clusters
Up to 4x32 segments
Up to 8 GPIOs in
LCDC clusters
Up to 4x24 segments
Up to 16 GPIOs in
LCDB & LCDC
clusters