Datasheet

TLC7225C, TLC7225I
QUADRUPLE 8-BIT DIGITAL-TO-ANALOG CONVERTERS
SLAS109B – OCTOBER 1996 – REVISED FEBRUARY 2001
10
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
APPLICATION INFORMATION
Table 2. TLC7225 Truth Table
CONTROL INPUTS
FUNCTION
WR LDAC
FUNCTION
H H No operation. Device not selected
L H Input register of selected DAC is transparent.
↑ H Input register of selected DAC is latched.
H L All four DAC registers are transparent (i.e., outputs respond to data
held in respective input registers) input registers are latched.
H ↑ All four DAC registers are latched.
L L DAC registers and selected input register are transparent. Output
follows input data for selected channel.
19
18
17
A0
A1
WR
To Latch A
To Latch B
To Latch C
To Latch D
Figure 5. Input Control Logic