SMJ320C25GBM Datasheet, PDF (2/38 Pages) Texas Instruments – DIGITAL SIGNAL PROCESSOR

SMJ320C25, SMJ320C25Ć50
DIGITAL SIGNAL PROCESSOR
SGUS007D – AUGUST 1988 – REVISED OCTOBER 2001
description
This data sheet provides design documentation for the SMJ320C25 and the SMJ320C25-50 digital signal
processor (DSP) devices in the SMJ320 family of VLSI digital signal processors and peripherals. The SMJ320
family supports a wide range of digital signal processing applications such as tactical communications,
guidance, military modems, speech processing, spectrum analysis, audio processing, digital filtering,
high-speed control, graphics, and other computation-intensive applications.
Differences between the SMJ320C25 and the SMJ320C25-50 are specifically identified, as in the following
paragraph and in the parameter tables on pages 18 through 24 of this data sheet. When not specifically
differentiated, the term SMJ320C25 is used to describe both devices.
The SMJ320C25 has a 100-ns instruction cycle time. The SMJ320C25-50 has an 80-ns instruction cycle time.
With these fast instruction cycle times and their innovative memory configurations, these devices perform
operations necessary for many real-time digital signal processing algorithms. Since most instructions require
only one cycle, the SMJ320C25 is capable of executing 12.5 million instructions per second. On-chip data RAM
of 544 16-bit words, on-chip program ROM of 4K words, direct addressing of up to 64K words of external data
memory space and 64K words of external program memory space, and multiprocessor interface features for
sharing global memory minimize unnecessary data transfers to take full advantage of the capabilities of the
instruction set.
FUNCTION
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
Table 1. PGA/CLCC/LCCC Pin Assignments
PIN
K1/26
K2/28
L3/29
K3/30
L4/31
K4/32
L5/33
K5/34
K6/36
L7/37
K7/38
L8/39
FUNCTION
A12
A13
A14
A15
BI0
BR
CLKOUT1
CLKOUT2
CLKR
CLKX
D0
D1
PIN
K8/40
L9/41
K9/42
L10/43
B7/68
G11/50
C11/58
D10/57
B9/64
A9/63
F1/18
E2/17
FUNCTION
D2
D3
D4
D5
D6
D7
D8
D9
D10
D11
D12
D13
PIN
E1/16
D2/15
D1/14
C2/13
C1/12
B2/11
A2/9
B3/8
A3/7
B4/6
A4/5
85/4
FUNCTION
D14
D15
DR
DS
DX
FSR
FSX
HOLD
HOLDA
IACK
INT0
INT1
PIN
A5/3
B6/2
J1/24
K10/45
E11/54
J2/25
F10/53
A7/67
E10/55
B11/60
G1/20
G2/21
FUNCTION
INT2
IS
MP/MC
MSC
PS
READY
RS
R/W
STRB
SYNC
VCC
VCC
PIN
H1/22
J11/46
A6/1
C10/59
J10/47
B8/66
A8/65
H11/48
H10/49
F2/19
A10/61
B10/62
FUNCTION
VCC
VCC
VSS
VSS
VSS
XF
X1
X2/CLKIN
PIN
H2/23
L6/35
B1/10
K11/44
L2/27
D11/56
G10/51
F11/52
SMJ320 is a trademark of Texas Instruments Incorporated.
2
• POST OFFICE BOX 1443 HOUSTON, TEXAS 77251–1443