ACS8525T Semtech, ACS8525T Datasheet - Page 5

• Manufacturer Part Number: ACS8525T
• Description: Line Card Protection Switch for SONET/SDH Systems
• Manufacturer: Semtech

Table 1 Power Pins
Note...I = Input, O = Output, P = Power, TTL
Table 2 Internally Connected
Table 3 Other Pins
Revision 3.01/August 2005 © Semtech Corp.
Pin Description
ADVANCED COMMUNICATIONS
8, 9,
12
22
27
32, 36,
38, 39,
45, 46,
54
4
14, 57
15, 58
7, 10,
11
31, 40,
53
21
1, 3
2, 16, 60, 61,
62, 63
55, 59
5
6
13
Pin Number
Pin Number
Pin Number
VD1+, VD2+,
VD3+
VDD_DIFF
VDD5V
VDD1, VDD2,
VDD3, VDD4,
VDD5, VDD6,
VDD7
VA1+
VA2+, VA3+
AGND3, AGND4
DGND1, DGND2,
DGND3
DGND4, DGND5,
DGND6
GND_DIFF
AGND1, AGND2
IC1, IC2, IC3, IC4,
IC5, IC6,
NC1, NC2
INTREQ
REFCLK
SRCSW
Symbol
Symbol
Symbol
I/O
I/O
I/O
O
P
P
P
P
P
P
P
P
P
P
I
I
-
-
U
= TTL input with pull-up resistor, TTL
TTL/CMOS
Type
Type
TTL
Type
TTL
-
-
-
-
-
-
-
-
-
-
-
-
-
D
FINAL
Page 5
Supply Voltage: Digital supply to gates in analog section, +3.3 Volts
±10%.
Supply Voltage: Digital supply for differential output pins 19 and 20,
+3.3 Volts ±10%.
Digital Supply for +5 Volts Tolerance to Input Pins. Connect to +5 Volts
(±10%) for clamping to +5 Volts. Connect to VDD for clamping to
+3.3 Volts. Leave floating for no clamping. Input pins tolerant up to
+5.5 Volts.
Supply Voltage: Digital supply to logic, +3.3 Volts ±10%.
Supply Voltage: Analog supply to clock multiplying PLL,
+3.3 Volts ±10%.
Supply Voltage: Analog supply to output PLLs APLL2 and APPL1,
+3.3 Volts ±10%.
Supply Ground: Analog ground for output PLLs APLL2 and APPL1.
Supply Ground: Digital ground for components in PLLs.
Supply Ground: Digital ground for logic.
Supply Ground: Digital ground for differential ports.
Supply Ground: Analog grounds.
Internally Connected: Leave to float.
Not Connected: Leave to float.
Interrupt Request: Active High/Low software Interrupt output.
Reference Clock: 12.800 MHz (refer to section headed Local Oscillator
Clock).
Source Switching: Force Fast Source Switching on SEC1 and SEC2.
D
= TTL input with pull-down resistor.
Description
Description
Description
ACS8525 LC/P
DATASHEET
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