參數(shù)資料
型號(hào)： TMS320C15-25
廠商： Texas Instruments, Inc.
元件分類： 數(shù)字信號(hào)處理
英文描述： Digital Signal Processors(160ns指令周期，分離的程序和數(shù)據(jù)總線，外部輪詢中斷的DSP)
中文描述： 數(shù)字信號(hào)處理器（160ns指令周期，分離的程序和數(shù)據(jù)總線，外部輪詢中斷的數(shù)字信號(hào)處理器）
文件頁數(shù)： 56/139頁
文件大?。?/td> 1478K
代理商： TMS320C15-25
VOH
High-level output voltage
VCC = MAX
VI = VSS to VCC
IOZ
Off-state output current
II
Input current
ICC
Supply current
Ci
Input capacitance
Co
Output capacitance
f = 1 MHz, all other pins 0 V
pF
pF
mA
μ
A
μ
A
Crystal frequency, fx
MHz
TMS320C15, TMS320E15, TMS320P15
DIGITAL SIGNAL PROCESSORS
SPRS009C–JANUARY 1987–REVISED JULY 1991
POST OFFICE BOX 1443
HOUSTON, TEXAS 77001
56
electrical characteristics over specified temperature range (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
2.4
TYP
MAX
UNIT
V
IOH = MAX
IOH = 20
μ
A (see Note 8)
IOL = MAX
3
VCC– 0.4
V
VOL
Low-level output voltage
0.3
0.5
V
VO = 2.4 V
VO = 0.4 V
All inputs except CLKIN
20
–20
±
20
±
50
55
CLKIN
TMS320C15
f = 20.5 MHz, VCC = 5.5 V, TA = 0
°
C to 70
°
C
f = 25.6 MHz, VCC = 5.5 V, TA = 0
°
C to 70
°
C
f = 20.5 MHz, VCC = 5.25 V, TA = – 40
°
C to 85
°
C
f = 25.6 MHz, VCC = 5.25 V, TA = 0
°
C to 70
°
C
45
TMS320C15-25
50
65
TMS320E15
55
75
TMS320E15-25
65
25
15
25
10
85
Data bus
All other
Data bus
All others
All typical values are at VCC = 5 V, TA = 70
°
C and are used for thermal resistance calculations.
ICC characteristics are inversely proportional to temperature. For ICC dependence on temperature, frequency, and loading, see Figure 3.
NOTE 7:
This voltage specification is included for interface to HC logic. However, note that all of the other timing parameters defined in this data
sheet are specified for TTL logic levels and will differ for HC logic levels.
CLOCK CHARACTERISTICS AND TIMING
The TMS320C15/E15/P15 can use either its internal oscillator or an external frequency source for a clock.
internal clock option
The internal oscillator is enabled by connecting a crystal across X1 and X2/CLKIN (see Figure 1). The frequency
of CLKOUT is one-fourth the crystal fundamental frequency. The crystal should be fundamental mode, and
parallel resonant, with an effective series resistance of 30 ohms, a power dissipation of 1 mW, and should be
specified at a load capacitance of 20 pF.
PARAMETER
TEST CONDITIONS
TA = 0
°
C to 70
°
C
TA = – 40
°
C to 85
°
C
TA = 0
°
C to 70
°
C
TA = 0
°
C to 70
°
C
MIN
NOM
MAX
UNIT
TMS320C15
6.7
20.5
TMS320E15/P15
6.7
20.5
TMS320C15-25/E15-25
6.7
25.6
C1, C2
10
pF
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