TMS320P25
DIGITAL SIGNAL PROCESSOR
SPRS028 – OCTOBER 1994
FN PACKAGE
(TOP VIEW)
• Instruction Cycle Time of 100 ns (40 MHz)
• 4K Words of On-Chip Secure Program
EPROM
• 544 Words of On-Chip Data RAM
• 128K Words of Data/Program Space
• 16 Parallel I/O Ports
• 32-Bit ALU/Accumulator
• 16 × 16-Bit Multiplier With a 32-Bit Product
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8 7 6 5 4 3 2 1 68 67 66 65 64 63 62 61
V
IACK
MSC
60
59
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25
SS
D7
D6
D5
58 CLKOUT1
57
CLKOUT2
D4
D3
D2
D1
D0
56 XF
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44
HOLDA
DX
FSX
X2 CLKIN
X1
• Block Moves for Data/Program
Management
SYNC
INT0
INT1
INT2
• Repeat Instructions for Efficient Use of
BR
Program Space
STRB
R/W
PS
IS
DS
• Serial Port for Direct Codec Interface
V
DR
CC
• Synchronization Input for Synchronous
FSR
Multiprocessor Configurations
A0 26
V
SS
27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43
• Wait States for Communication to Slow
Off-Chip Memories/Peripherals
• On-Chip Timer for Control Operations
• Single 5-V Supply
PH PACKAGE
(TOP VIEW)
• Packaging:
– 68-Lead Plastic J-Leaded Chip Carrier
(FN Suffix)
– 80-Lead Plastic Quad Flatpack
(PH Suffix)
80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65
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41
IACK
V
V
SS
SS
2
V
V
V
CC
CC
CC
• 68-to-28-Lead Conversion Adapter Socket
3
A15
A14
A13
A12
for EPROM Programming
4
5
CLKX
description
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V
SS
7
CLKR
RS
V
SS
The TMS320P25 digital signal processor is a
member of the TMS320 family of VLSI digital
signal processors and peripherals. The TMS320
family supports a wide range of digital signal
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A11
A10
A9
9
READY
HOLD
BIO
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A8
MP /MC
D15
V
processing
applications,
such
as
image
CC
V
CC
telecommunications,
modems,
V
A7
A6
SS
processing, speech processing, spectrum
analysis, audio processing, digital filtering,
high-speed control, graphics, and other
computation intensive applications.
D14
D13
V
SS
V
A5
A4
A3
A2
A1
NC
V
CC
D12
D11
D10
D9
With a 100-ns instruction cycle time and an
innovative memory configuration, the ’320P25
performs operations necessary for many real-time
digital signal processing algorithms. Since most
instructions require only one cycle, the
TMS320P25 is capable of executing ten million
instructions per second. On-chip programmable
data/program RAM of 544 words of 16 bits,
on-chip program EPROM of 4K words (one-time
programmable memory), direct addressing of up
D8
V
SS
SS
SS
V
A0
25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
Copyright 1994, Texas Instruments Incorporated
ADVANCE INFORMATION concerns new products in the sampling or
preproduction phase of development. Characteristic data and other
specifications are subject to change without notice.
1
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