參數(shù)資料
型號: TMS320LC17
廠商: Texas Instruments, Inc.
元件分類: 數(shù)字信號處理
英文描述: Digital Signal Processors(278ns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)字信號處理器(278ns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)字信號處理器)
文件頁數(shù): 36/139頁
文件大?。?/td> 1478K
代理商: TMS320LC17
VOH
High-level output voltage
IOZ
Off-state output voltage
II
Input current
VCC = MAX
μ
A
VI = VSS to VCC
μ
A
CI
Input capacitance
pF
CO
Output
capacitance
pF
f = 1 MHz, All other pins 0 V
TMS320C14, TMS320E14, TMS320P14
DIGITAL SIGNAL PROCESSORS
SPRS009C–JANUARY 1987–REVISED JULY 1991
POST OFFICE BOX 1443
HOUSTON, TEXAS 77001
36
electrical characteristics over specified temperature range (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
IOH = MAX
IOH = 20
μ
A (see Note 7)
IOL = MAX
2.4
3
V
VCC – 0.4
V
VOL
Low-level output voltage
0.3
0.5
V
VO = 2.4 V
VO = 0.4 V
All other inputs except CLKIN
20
–20
±
20
±
50
90
CLKIN
ICC§
IPP1
Supply current
f = 25.6 MHz, VCC = 5.25 V, TA = 0
°
C to 70
°
C
VPP = VCC = 5.5 V
70
mA
μ
A
VPP supply current
VPP supply current
(during program pulse)
100
IPP2
VPP = 13 V
30
50
mA
Data bus
25
15
25
10
All others
Data bus
All others
All typical values are at VCC = 5 V, TA = 25
°
C, except ICC at 70
°
C.
Values derived from characterization data and not tested.
§ICC characteristics are inversely proportional to temperature.
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.
PARAMETER MEASUREMENT INFORMATION
2.15 V
From Output
Under Test
RL = 825
Test
Point
CL = 100 pF
Figure 5. Test Load Circuit
EXTERNAL CLOCK REQUIREMENTS
The TMS320C14/E14/P14 use an external frequency source for a clock. This source is applied to the CLKIN
pin, and must conform to the specifications in the table below.
PARAMETERS
TEST CONDITIONS
MIN
NOM
MAX
UNIT
CLKIN
Input clock frequency
TA = 0
°
C to 70
°
C
6.7
25.6
MHz
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