adg528abchips Analog Devices, Inc., adg528abchips Datasheet - Page 6

• Manufacturer Part Number: adg528abchips
• Description: Cmos Latched 4/8 Channel Analog Multiplexers
• Manufacturer: Analog Devices, Inc.

ADG528A/ADG529A
A2 A1 A0 EN WR RS ON SWITCH PAIR
X
X
X
0
0
0
0
1
1
1
1
X = Don’t Care
A1 A0 EN WR RS ON SWITCH PAIR
X
X
X
0
0
1
1
X = Don’t Care
X
X
X
0
0
1
1
0
0
1
1
X
X
X
0
1
0
1
X
X
X
0
1
0
1
0
1
0
1
X
X
0
1
1
1
1
X
X
0
1
1
1
1
1
1
1
1
X
0
0
0
0
0
X
0
0
0
0
0
0
0
0
0
1
0
1
1
1
1
1
TRUTH TABLES
1
0
1
1
1
1
1
1
1
1
1
ADG529A
Retains Previous Switch Condition
NONE (Address and Enable Latches
Cleared)
NONE
1
2
3
4
Retains Previous Switch Condition
NONE (Address and Enable
Latches Cleared)
NONE
1
2
3
4
5
6
7
8
ADG528A
–6–
Figure 1 shows the timing sequence for latching the switch
address and enable inputs. The latches are level sensitive; there-
fore, while WR is held low, the latches are transparent and the
switches respond to the address and enable inputs. This input
data is latched on the rising edge of WR.
Figure 2 shows the Reset Pulse Width, t
Time, t
Note: All digital input signals rise and fall times measured from
10% to 90% of 3 V. t
OFF
(RS).
TIMING DIAGRAMS
R
= t
F
Figure 1.
Figure 2.
= 20 ns.
RS
, and Reset Turn-off
REV. B