Specifications
EPSON 3–17
SED1210
SED1210
Command Clock (Φ)
When the system MPU issues a command to the
SED1210F, the timing for the execution of the command
is derived from Φ, the command clock. This would
normally be the system MPU clock.
The maximum execution time for a command is given by
16/Φ. For example if Φ = 1 MHz, the maximum
execution time for a command is 16 µs.
LCD Drive Waveforms
The SED1210F has an internal low source-impedance
voltage-driver shown in the figure below. The switches
are closed to switch the segment data.
V
DD
V
LCD
R
d1
R
d1
R
d1
R
d1
R
d1
R
d2
V
DD
V
L1
V
L2
V
L3
V
L4
V
LCD
R
d2
R
d2
R
d2
R
d2