TMS320 SECOND-GENERATION
DIGITAL SIGNAL PROCESSORS
SPRS010B — MAY 1987 — REVISED NOVEMBER 1990
†
68-Pin GB Package
(Top View)
•
•
•
80-ns Instruction Cycle Time
1
2 3 4 5 6 7 8 9 10 11
544 Words of On-Chip Data RAM
4K Words of On-Chip Secure Program
EPROM (TMS320E25)
A
B
C
D
E
F
•
4K Words of On-Chip Program ROM
(TMS320C25)
•
•
•
•
128K Words of Data/Program Space
32-Bit ALU/Accumulator
G
H
J
16 × 16-Bit Multiplier With a 32-Bit Product
Block Moves for Data/Program
Management
K
L
•
Repeat Instructions for Efficient Use of
Program Space
†
68-Pin FN and FZ Packages
(Top View)
•
•
Serial Port for Direct Codec Interface
Synchronization Input for Synchronous
Multiprocessor Configurations
•
Wait States for Communication to Slow
Off-Chip Memories/Peripherals
9
8
7
6
5
4
3
2
1
68 67 66 65 64 63 62 61
60
59
V
IACK
MSC
10
SS
D7
D6
D5
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
58 CLKOUT1
57 CLKOUT2
56 XF
•
•
•
On-Chip Timer for Control Operations
Single 5-V Supply
D4
D3
D2
D1
D0
55 HOLDA
54
53
52
51
50
49
48
47
46
45
44
DX
Packaging: 68-Pin PGA, PLCC, and
CER-QUAD
FSX
X2 CLKIN
X1
SYNC
INT0
INT1
INT2
BR
•
68-to-28 Pin Conversion Adapter Socket for
EPROM Programming
STRB
R/W
PS
IS
DS
V
DR
CC
•
•
Commercial and Military Versions Available
FSR
NMOS Technology:
— TMS32020 . . . . . . . . . 200-ns cycle time
A0 26
27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43
V
SS
• CMOS Technology:
— TMS320C25 . . . . . . . . 100-ns cycle time
— TMS320E25 . . . . . . . . 100-ns cycle time
— TMS320C25-50 . . . . . . 80-ns cycle time
description
This data sheet provides complete design documentation for the second-generation devices of the TMS320
family. This facilitates the selection of the devices best suited for user applications by providing all specifications
and special features for each TMS320 member. This data sheet is divided into four major sections: architecture,
electrical specifications (NMOS and CMOS), timing diagrams, and mechanical data. In each of these sections,
generic information is presented first, followed by specific device information. An index is provided for quick
reference to specific information about a device.
ADVANCE INFORMATION concerns new products in the
Copyright 1991, Texas Instruments Incorporated
sampling or preproduction phase of development.
Characteristic data and other specifications are subject to
change without notice.
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77001
1