DS21554 Просмотр технического описания (PDF) - Maxim Integrated
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DS21554 Datasheet PDF : 124 Pages
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3. PIN DESCRIPTION
DS21354/DS21554 3.3V/5V E1 Single-Chip Transceivers
Table 3-1. Pin Description Sorted by Pin Number
PIN
1
2
3
4
5
6
7
8, 9, 15,
23, 26, 27,
28
10
11
12
13
14
16
17
18
19, 20, 24
21
22
25
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44, 61,
81,83
45, 60, 80,
84
46
47
48
NAME
RCHBLK
JTMS
8MCLK
JTCLK
JTRST
RCL
JTDI
N.C.
JTDO
BTS
LIUC
8XCLK
TEST
RTIP
RRING
RVDD
RVSS
MCLK
XTALD
INT
TTIP
TVSS
TVDD
TRING
TCHBLK
TLCLK
TLINK
CI
TSYNC
TPOSI
TNEGI
TCLKI
TCLKO
TNEGO
TPOSO
DVDD
DVSS
TCLK
TSER
TSIG
TYPE
O
I
O
I
I
O
I
—
O
I
I
O
I
I
I
–
–
I
O
O
O
–
–
O
O
O
I
I
I/O
I
I
I
O
O
O
—
—
I
I
I
FUNCTION
Receive Channel Block
IEEE 1149.1 Test Mode Select
8.192 MHz Clock
IEEE 1149.1 Test Clock Signal
IEEE 1149.1 Test Reset, Active Low
Receive Carrier Loss
IEEE 1149.1 Test Data Input
No Connect. Do not connect any signal to this pin.
IEEE 1149.1 Test Data Output
Bus Type Select
Line Interface Connect
Eight Times Clock
Test
Receive Analog Tip Input
Receive Analog Ring Input
Receive Analog Positive Supply
Receive Analog Signal Ground
Master Clock Input
Quartz Crystal Driver
Interrupt, Active Low
Transmit Analog Tip Output
Transmit Analog Signal Ground
Transmit Analog Positive Supply
Transmit Analog Ring Output
Transmit Channel Block
Transmit Link Clock
Transmit Link Data
Carry In
Transmit Sync
Transmit Positive Data Input
Transmit Negative Data Input
Transmit Clock Input
Transmit Clock Output
Transmit Negative Data Output
Transmit Positive Data Output
Digital Positive Supply
Digital Signal Ground
Transmit Clock
Transmit Serial Data
Transmit Signaling Input
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