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參數(shù)資料
| 型號： | L8567-32PLCC |
| 英文描述： | Telecommunication IC |
| 中文描述： | 通信集成電路 |
| 文件頁數(shù)： | 7/42頁 |
| 文件大小： | 701K |
| 代理商： | L8567-32PLCC |
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Lucent Technologies Inc.
7
Data Sheet
August 1999
People’s Republic of China Applications
L8567 SLIC for
Pin Information
(continued)
Table 1. Pin Descriptions
44-Pin
2
32-Pin
1
Symbol
RD3I
Type
I
Description
Relay Driver 3 Input.
This latched logic input sets the state of the relay driv-
er number 3. When using EMRs, the relay driver is controlled by this input
via a data bus or independent data line. When using an L758X solid-state
switch, the solid-state switch is controlled directly via the data bus or inde-
pendent data line and the relay driver is unused; in this case, tie this logic
input to ground.
Relay Driver 2 Input.
This latched logic input sets the state of the relay driv-
er number 2. When using EMRs, the relay driver is controlled by this input
via a data bus or independent data line. When using an L758X solid-state
switch, the solid-state switch is controlled directly via the data bus or inde-
pendent data line and the relay driver is unused; in this case, tie this logic
input to ground.
Relay Driver 1 Input.
This latched logic input sets the state of the relay driv-
er number 1. When using EMRs, the relay driver is controlled by this input
via a data bus or independent data line. When using an L758X solid-state
switch, the solid-state switch is controlled directly via the data bus or inde-
pendent data line and the relay driver is unused; in this case, tie this logic
input to ground.
Relay Driver 3 Output.
Output to drive an EMR, controlled by RD3I.
No Connect.
3
2
RD2I
I
4
3
RD1I
I
6
4
—
RD3O
NC
O
—
5, 12,
14, 15,
20, 26,
28, 32,
35, 39,
42, 43
7
8
9
5
6
7
RD2O
RD1O
NLED
O
O
O
Relay Driver 2 Output.
Output to drive an EMR, controlled by RD2I.
Relay Driver 1 Output.
Output to drive an EMR, controlled by RD1I.
NSTAT LED Driver.
This output is equivalent to NSTAT, except this output
has sufficient drive capability to drive an LED. This LED driver output is an
open-collector output, so multiple outputs may be used to drive a single LED.
This output may be used as an alternative logic output to the latched NSTAT
output to indicate ring trip or loop supervision status. This output is valid re-
gardless of the state of EN.
PWR
Digital Ground.
PWR
+5 V Digital Power Supply.
PWR
+5 V Analog Power Supply.
I
Current-Limit Program Resistor.
A resistor to DC
OUT
sets the dc current
limit.
O
dc Output Voltage.
This output is a voltage that is directly proportional to
the absolute value of the differential tip/ring current.
I
Ring Trip Sense Positive.
Connect this pin to the ring relay and to the
ringer series through a high-value resistor.
I
Ring Trip Sense Negative.
Connect this pin to the ringing generator
through a high-value resistor.
10
11
13
8
9
10
11
DGND
V
DD
V
CC
I
PROG
16
17
12
DC
OUT
18
13
RTSP
19
14
RTSN
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