DS21Q44 Просмотр технического описания (PDF) - Dallas Semiconductor -> Maxim Integrated
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DS21Q44 Datasheet PDF : 105 Pages
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2. DS21Q44 PIN DESCRIPTION
Pin Description Sorted by Pin Number Table 2-1
DS21Q44
PIN
SYMBOL
TYPE DESCRIPTION
1
TCHBLK0
O Transmit Channel Block from Framer 0
2
TPOS0
O Transmit Bipolar Data from Framer 0
3
TNEG0
O Transmit Bipolar Data from Framer 0
4
RLINK0
O Receive Link Data from Framer 0
5
RLCLK0
O Receive Link Clock from Framer 0
6
RCLK0
I Receive Clock for Framer 0
7
RNEG0
I Receive Bipolar Data for Framer 0
8
RPOS0
I Receive Bipolar Data for Framer 0
9
RSIG0
O Receive Signaling Output from Framer 0
[RCHCLK0]
[O] [Receive Channel Clock from Framer 0]
10
RCHBLK0
O Receive Channel Block from Framer 0
11
RSYSCLK0
I Receive System Clock for Elastic Store in Framer 0
12
RSYNC0
I/O Receive Sync for Framer 0
13
RSER0
O Receive Serial Data from Framer 0
14
VSS
- Signal Ground
15
VDD
- Positive Supply Voltage
16
SPARE1
- RESERVED - must be left unconnected for normal operation
[RMSYNC0]
[O] [Receive Multiframe Sync from Framer 0]
17
RFSYNC0
O Receive Frame Sync from Framer 0
18
JTRST*
I JTAG Reset
[RLOS/LOTC0] [O] [Receive Loss of Sync/Loss of Transmit clock from Framer 0]
19
TCLK0
I Transmit Clock for Framer 0
20
TLCLK0
O Transmit Link Clock from Framer 0
21
TSYNC0
I/O Transmit Sync for Framer 0
22
TLINK0
I Transmit Link Data for Framer 0
23
A0
I Address Bus Bit 0; LSB
24
A1
I Address Bus Bit 1
25
A2
I Address Bus Bit 2
26
A3
I Address Bus Bit 3
27
A4
I Address Bus Bit 4
28
A5
I Address Bus Bit 5
29
A6/ALE (AS)
I Address Bus Bit 6; MSB or Address Latch Enable (Address
Strobe)
30
INT*
O Receive Alarm Interrupt for all Four Framers
31
TSYSCLK1
I Transmit System Clock for Elastic Store in Framer 1
32
TSER1
I Transmit Serial Data for Framer 1
33
TSSYNC1
I Transmit Sync for Elastic Store in Framer 1
34
TSIG1
I Transmit Signaling Input for Framer 1
[TCHCLK1]
[O] [Transmit Channel Clock from Framer 1]
35
TCHBLK1
O Transmit Channel Block from Framer 1
36
TPOS1
O Transmit Bipolar Data from Framer 1
37
TNEG1
O Transmit Bipolar Data from Framer 1
7 of 105
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