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TMS320 SECOND-GENERATION
DEVICES
SPRS010B — MAY 1987 — REVISED NOVEMBER 1990
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77001
4
Key Features: TMS32020
• 200-ns Instruction Cycle Time
• 544 Words of On-Chip Data RAM
• 128K Words of Total Data/Program
Memory Space
• Wait States for Communication to Slower Off-Chip
Memories
• Source Code Compatible With the TMS320C1x
• Single-Cycle Multiply/Accumulate Instructions
• Repeat Instructions
• Global Data Memory Interface
• Block Moves for Data/Program Management
• Five Auxiliary Registers With Dedicated
Arithmetic Unit
• Serial Port for Multiprocessing or Interfacing
to Codecs, Serial Analog-to-Digital
Converters, etc.
Key Features: TMS320C25, TMS320C25-50, TMS320E25
• 80-ns Instruction Cycle Time (TMS320C25-50)
• 100-ns Instruction Cycle Time (TMS320C25)
• 4K Words of On-Chip Secure Program EPROM
(TMS320E25)
• 4K Words of On-Chip Program
ROM (TMS320C25)
• 544 Words of On-Chip RAM
• 128K Words of Total Program/Data
Memory Space
• Wait States for Communications to
Slower Off-Chip Memories
• Object-Code Compatible With the TMS32020
• Source-Code Compatible With TMS320C1x
• 24 Additional Instructions to Support
Adaptive Filtering, FFTs, and
Extended-Precision Arithmetic
• Block Moves for Data/Program Management
• Single-Cycle Multiply/Accumulate Instructions
• Eight Auxiliary Registers With Dedicated
Arithmetic Unit
• Bit-Reversed Indexed-Addressing Mode for
Radix-2 FFTS
• Double-Buffered Serial Port
• On-Chip Clock Generator
• Single 5-V Supply
• NMOS Technology
• 68-Pin Grid Array (PGA) Package
• On-Chip Clock Generator
• Single 5-V Supply
• Internal Security Mechanism (TMS320E25)
• 68-to-28 Pin Conversion Adapter Socket
• CMOS Technology
• 68-Pin Grid Array (PGA) Package
(TMS320C25)
• 68-Lead Plastic Leaded Chip Carrier (PLCC)
Package (TMS320C25, TMS320C25-50)
• 68-Lead CER-QUAD Package (TMS320E25)
Multiplier
32-BIT ALU/ACC
Shifters
Timer
Interrupts
Data (16)
Address (16)
+5 V GND
32-Bit ALU/ACC
Shifters
Timer
MP/MC
Data (16)
Address (16)
+5 V GND
4K-Words
ROM/EPROM
Multiplier
256-Word
Data/Prog
RAM
288-Word
Data
RAM
Interrupts
Serial
Interface
Multi-
Processor
Interface
Serial
Interface
Multi-
Processor
Interface
256-Word
Data/Prog
RAM
288-Word
Data
RAM