参数资料
型号: DS21554L
厂商: DALLAS SEMICONDUCTOR
元件分类: Digital Transmission Interface
英文描述: DATACOM, PCM TRANSCEIVER, PQFP100
封装: 14 X 14 MM, LQFP-100
文件页数: 13/117页
文件大小: 698K
代理商: DS21554L
DS21354 & DS21554
11 of 117
4 PIN DESCRIPTION
PIN DESCRIPTION SORTED BY PIN NUMBER Table 4-1
PIN
SYMBOL
TYPE
DESCRIPTION
1
RCHBLK
O
Receive Channel Block
2
JTMS
I
IEEE 1149.1 Test Mode Select
3
8MCLK
O
8.192 MHz Clock
4
JTCLK
I
IEEE 1149.1 Test Clock Signal
5
JTRST*
I
IEEE 1149.1 Test Reset
6
RCL
O
Receive Carrier Loss
7
JTDI
I
IEEE 1149.1 Test Data Input
8
NC
No Connect (do not connect any signal to this pin)
9
NC
No Connect (do not connect any signal to this pin)
10
JTDO
O
IEEE 1149.1 Test Data Output
11
BTS
I
Bus Type Select
12
LIUC
I
Line Interface Connect
13
8XCLK
O
Eight Times Clock
14
TEST
I
Test
15
NC
No Connect (do not connect any signal to this pin)
16
RTIP
I
Receive Analog Tip Input
17
RRING
I
Receive Analog Ring Input
18
RVDD
Receive Analog Positive Supply
19
RVSS
Receive Analog Signal Ground
20
RVSS
Receive Analog Signal Ground
21
MCLK
I
Master Clock Input
22
XTALD
O
Quartz Crystal Driver
23
NC
No Connect
24
RVSS
Receive Analog Signal Ground
25
INT*
O
Interrupt
26
NC
No Connect (do not connect any signal to this pin)
27
NC
No Connect (do not connect any signal to this pin)
28
NC
No Connect (do not connect any signal to this pin)
29
TTIP
O
Transmit Analog Tip Output
30
TVSS
Transmit Analog Signal Ground
31
TVDD
Transmit Analog Positive Supply
32
TRING
O
Transmit Analog Ring Output
33
TCHBLK
O
Transmit Channel Block
34
TLCLK
O
Transmit Link Clock
35
TLINK
I
Transmit Link Data
36
CI
I
Carry In
37
TSYNC
I/O
Transmit Sync
38
TPOSI
I
Transmit Positive Data Input
39
TNEGI
I
Transmit Negative Data Input
40
TCLKI
I
Transmit Clock Input
41
TCLKO
O
Transmit Clock Output
42
TNEGO
O
Transmit Negative Data Output
43
TPOSO
O
Transmit Positive Data Output
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