ICL8052 Datasheet, PDF (9/21 Pages) Intersil Corporation – 14-Bit/16-Bit, Microprocessor- Compatible, 2-Chip, A/D Converter

ICL8052/ICL7104, ICL8068/ICL7104
CONTROL
CONVERT
MODE
R/H
OR
≥18
POL
8052A/
8068A
7104 -16
MSB
18
LSB
CE/LD HBEN MBEN LBEN
OR CHIP SELECT 2
CHIP SELECT 1
FIGURE 2. FULL 18-BIT THREE-STATE OUTPUT
CONVERT
MODE CE/LD R/H
OR
2
POL
8052A/
8068A
7104
MSB
8
8
LSB
HBEN MBEN LBEN
CONVERT
MODE CE/LD
8052A/
8068A
7104
R/H
OR
2
POL
MSB
16
LSB
HBEN MBEN LBEN
CONVERT
MODE CE/LD R/H
8052A/
8068A
OR
POL
7104
MSB
10
8
LSB
HBEN MBEN LBEN
CONTROL
CONTROL
FIGURE 3. VARIOUS COMBINATIONS OF BYTE DISABLES
CONTROL
CE/LD
AS INPUT
HBEN
AS INPUT
MBEN
AS INPUT
LBEN
AS INPUT
HIGH BYTE
DATA
MIDDLE
BYTE
ENABLE
LOW BYTE
ENABLE
t_BEA
t_DAB
DATA
VALID
t_DHB
DATA
VALID
t_DAC
= HIGH IMPEDANCE
FIGURE 4. DIRECT MODE TIMING DIAGRAM
t_CEA
DATA
VALID
DATA
VALID
DATA
VALID
t_DHC
5-14