DS21455 Maxim Integrated Products, DS21455 Datasheet - Page 265
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DS21455
Manufacturer Part Number
DS21455
Description
Network Controller & Processor ICs Quad E1-T1-J1 Single -Chip Transceiver (S
Manufacturer
Maxim Integrated Products
Specifications of DS21455
Product
Framer
Number Of Transceivers
4
Data Rate
64 Kbps
Supply Voltage (max)
3.465 V
Supply Voltage (min)
3.135 V
Supply Current (max)
328 mA
Maximum Operating Temperature
+ 70 C
Minimum Operating Temperature
0 C
Mounting Style
SMD/SMT
Package / Case
BGA
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
DS21455
Manufacturer:
MAXIM/美信
Quantity:
20 000
Company:
Part Number:
DS21455+
Manufacturer:
Maxim Integrated Products
Quantity:
135
Company:
Part Number:
DS21455N+
Manufacturer:
Maxim Integrated Products
Quantity:
135
38.4 Transmit AC Characteristics
AC CHARACTERISTICS–TRANSMIT SIDE
(V
V
TCLK Period
TCLK Pulse Width
TCLKI Period
TCLKI Pulse Width
TSYSCLK Period
TSYSCLK Pulse Width
TSYNC or TSSYNC Setup to TCLK
or TSYSCLK Falling
TSYNC or TSSYNC Pulse Width
TSER, TSIG, TDATA, TLINK,
TPOSI, TNEGI Setup to TCLK,
TSYSCLK, TCLKI Falling
TSER, TSIG, TDATA, TLINK Hold
from TCLK or TSYSCLK, Falling
TPOSI, TNEGI Hold from TCLKI
Falling
TCLK, TCLKI, or TSYSCLK Rise
and Fall Times
Delay TCLKO to TPOSO, TNEGO
Valid
Delay TCLK to TESO Valid
Delay TCLK to TCHBLK, TCHCLK,
TSYNC, TLCLK
Delay TSYSCLK to TCHCLK,
TCHBLK
NOTES:
1) TSYSCLK = 1.544MHz.
2) TSYSCLK = 2.048MHz.
3) TSYSCLK = 4.096MHz.
4) TSYSCLK = 8.192MHz.
5) TSYSCLK = 16.384MHz.
DD
DD
= 3.3V ±5%, T
= 3.3V ±5%, T
PARAMETER
A
A
= -40°C to +85°C; for DS21455N/DS21458N.) (See
= 0°C to +70°C for DS21455/DS21458;
SYMBOL
t
R
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
PW
HD
HD
DD
CH
CL
LH
SU
SU
CP
LP
LL
SP
SP
D1
D2
D3
, t
F
265 of 270
MIN
20
20
20
20
20
20
20
50
20
20
20
TYP (E1)
488 (E1)
648 (T1)
488 (E1)
648 (T1)
0.5 t
0.5 t
0.5 t
0.5 t
0.5 t
0.5 t
648
448
244
122
61
CP
CP
LP
LP
SP
SP
Figure 38-13
MAX
25
50
50
50
22
UNITS
to
Figure
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
38-15.)
NOTES
1
2
3
4
5