TMS320 SECOND-GENERATION
DIGITAL SIGNAL PROCESSORS
SPRS010B — MAY 1987 — REVISED NOVEMBER 1990
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80-ns Instruction Cycle Time
544 Words of On-Chip Data RAM
4K Words of On-Chip Secure Program
EPROM (TMS320E25)
4K Words of On-Chip Program ROM
(TMS320C25)
128K Words of Data/Program Space
32-Bit ALU/Accumulator
16
×
16-Bit Multiplier With a 32-Bit Product
Block Moves for Data/Program
Management
Repeat Instructions for Efficient Use of
Program Space
Serial Port for Direct Codec Interface
Synchronization Input for Synchronous
Multiprocessor Configurations
Wait States for Communication to Slow
Off-Chip Memories/Peripherals
On-Chip Timer for Control Operations
Single 5-V Supply
Packaging: 68-Pin PGA, PLCC, and
CER-QUAD
68-to-28 Pin Conversion Adapter Socket for
EPROM Programming
Commercial and Military Versions Available
NMOS Technology:
— TMS32020
. . . . . . . . .
200-ns cycle time
CMOS Technology:
— TMS320C25
. . . . . . . .
100-ns cycle time
— TMS320E25
. . . . . . . .
100-ns cycle time
— TMS320C25-50
. . . . . .
80-ns cycle time
VSS
D7
D6
D5
D4
D3
D2
D1
D0
SYNC
INT0
INT1
INT2
VCC
DR
FSR
A0
68-Pin GB Package†
(Top View)
1 2 3 4 5 6 7 8 9 10 11
A
B
C
D
E
F
G
H
J
K
L
68-Pin FN and FZ Packages†
(Top View)
READY
CLKR
CLKX
V CC
V CC
D8
D9
D10
D11
D12
D13
D14
D15
9 8 7 6 5 4 3 2 1 68 67 66 65 64 63 62 61
60
10
59
11
58
12
57
13
56
14
55
15
54
16
53
17
52
18
51
19
50
20
49
21
48
22
47
23
46
24
45
25
44
26
27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43
IACK
MSC
CLKOUT1
CLKOUT2
XF
HOLDA
DX
FSX
X2 CLKIN
X1
BR
STRB
R/W
PS
IS
DS
VSS
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
sampling or preproduction phase of development.
Characteristic data and other specifications are subject to
change without notice.
POST OFFICE BOX 1443
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HOUSTON, TEXAS 77001
V SS
A1
A2
A3
A4
A5
A6
A7
V CC
A8
A9
A10
A11
A12
A13
A14
A15
Copyright
©
1991, Texas Instruments Incorporated
1
ADVANCE INFORMATION
TI [ TEXAS INSTRUMENTS ]
