ACS8514T View Datasheet(PDF) - Semtech Corporation
Part Name
Description
MFG CO.
ACS8514T
Synchronous Equipment Timing Source Partner IC for 2nd T4 DPLL, Accurate Monitoring & Input Extender
Semtech Corporation
'ACS8514T' PDF : 86 Pages View PDF
ACS8514 SETS Buddy
ADVANCED COMMS & SENSING FINAL
DATASHEET
Table 4 Other Pins
Pin Number
Symbol
I/O
2
TRST
I
7
8
9
10
21
23
24
25
27
28
40,
41
42,
43
46
47
48
51
52
53
54
55
56
57
58 - 60
63 - 69
TMS
I
INTREQ
O
TCK
I
REFCLK
I
TDO
O
TDI
I
I1
I
I2
I
TO2NEG
O
TO2POS
O
I5POS,
I
I5NEG
I6POS,
I
I6NEG
I3
I
I4
I
I7
I
I8
I
I9
I
I10
I
I11
I
I12
I
I13
I
I14
I
UPSEL(2:0)
I
A(6:0)
I
Type
TTL D
TTL U
TTL/CMOS
TTL D
TTL
TTL/CMOS
TTL U
AMI
AMI
AMI
AMI
LVDS/PECL
PECL/LVDS
TTL D
TTL D
TTL D
TTL D
TTL D
TTL D
TTL D
TTL D
TTL D
TTL D
TTL D
TTL D
Description
JTAG Control Reset Input: TRST = 1 to enable JTAG Boundary Scan
mode. TRST = 0 for Boundary Scan stand-by mode, still allowing
correct device operation. If not used connect to GND or leave floating.
JTAG Test Mode Select: Boundary Scan enable. Sampled on rising
edge of TCK. If not used connect to VDD or leave floating.
Interrupt Request: Active high/low software Interrupt output.
JTAG Clock: Boundary Scan clock input. If not used connect to GND or
leave floating.
Reference Clock: 12.8 MHz (refer to section headed Local Oscillator
Clock).
JTAG Output: Serial test data output. Updated on falling edge of TCK.
If not used leave floating.
JTAG Input: Serial test data Input. Sampled on rising edge of TCK. If
not used connect to VDD or leave floating.
Input reference 1: Composite clock 64 kHz + 8 kHz.
Input reference 2: Composite clock 64 kHz + 8 kHz.
Output reference 8: Composite clock, 64 kHz + 8 kHz negative pulse.
Output reference 8: Composite clock, 64 kHz + 8 kHz positive pulse.
Input reference 5: Programmable, default 19.44 MHz, default type
LVDS.
Input reference 6: Programmable, default 19.44 MHz, default type
PECL.
Input reference 3: Programmable, default 8 kHz.
Input reference 4: Programmable, default 8 kHz.
Input reference 7: Programmable, default 19.44 MHz.
Input reference 8: Programmable, default 19.44 MHz.
Input reference 9: Programmable, default 19.44 MHz.
Input reference 10: Programmable, default 19.44 MHz.
Input reference 11: Programmable, default (Master mode)
1.544/2.048 MHz, default (Slave mode) 6.48 MHz.
Input reference 12: Programmable, default 1.544/2.048 MHz.
Input reference 13: Programmable, default 1.544/2.048 MHz.
Input reference 14: Programmable, default 1.544/2.048 MHz.
Microprocessor select: Configures the interface for a particular
microprocessor type at reset.
Microprocessor Interface Address: Address bus for the
microprocessor interface registers. A(0) is SDI in Serial mode - output
in EPROM mode only.
Revision 3.00 April 2007 © Semtech Corp.
Page 5
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