DS21Q42T+ Maxim Integrated Products, DS21Q42T+ Datasheet - Page 104
DS21Q42T+
Manufacturer Part Number
DS21Q42T+
Description
IC FRAMER ENHANCED T1 4X 128TQFP
Manufacturer
Maxim Integrated Products
Datasheet
1.DS21Q42T.pdf
(116 pages)
Specifications of DS21Q42T+
Controller Type
T1 Framer
Interface
Parallel/Serial
Voltage - Supply
2.97 V ~ 3.63 V
Current - Supply
75mA
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
128-TQFP, 128-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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AC CHARACTERISTICS—MULTIPLEXED PARALLEL PORT (MUX = 1)
Cycle Time
Pulse Width, DS low or
RD*high
Pulse Width, DS high or
RD* low
Input Rise/Fall times
R/W* Hold Time
R/W* Setup time before
DS high
CS*, FSO or FS1 Setup
time before DS, WR* or
RD* active
CS*, FSO or FS1 Hold
time
Read Data Hold time
Write Data Hold time
Muxed Address valid to
AS or ALE fall
Muxed Address Hold
time
Delay time DS, WR* or
RD* to AS or ALE rise
Pulse Width AS or ALE
high
Delay time, AS or ALE
to DS, WR* or RD*
Output Data Delay time
from DS or RD*
Data Setup time
See Figures 21-1 to 21-3 for details.
PARAMETER
SYMBOL
PW
PW
PW
t
t
t
t
t
t
t
t
t
t
t
DHW
t
ASED
R
RWH
RWS
t
DHR
AHL
DDR
DSW
CYC
t
ASD
ASL
CH
CS
, t
ASH
EH
EL
F
-40°C to +85°C; V
(0°C to +70°C; V
MIN
200
100
100
10
50
20
10
10
15
10
20
30
10
20
50
0
104 of 116
TYP
20
DD
DD
= 2.97 to 3.63V for DS21Q42TN)
= 2.97 to 3.63V for DS21Q42T
MAX
50
80
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
NOTES
DS21Q42
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