參數(shù)資料
型號(hào): TMS320LC545
廠商: Texas Instruments, Inc.
元件分類: 數(shù)字信號(hào)處理
英文描述: Digital Signal Processors(20/25ns指令周期, 高性能,大并行度,特殊指令集可有效實(shí)現(xiàn)多種復(fù)雜算法及應(yīng)用的DSP)
中文描述: 數(shù)字信號(hào)處理器(20/25ns指令周期,高性能,大并行度,特殊指令集可有效實(shí)現(xiàn)多種復(fù)雜算法及應(yīng)用的數(shù)字信號(hào)處理器)
文件頁(yè)數(shù): 61/107頁(yè)
文件大?。?/td> 2149K
代理商: TMS320LC545
TMS320C54x, TMS320LC54x
FIXED-POINT DIGITAL SIGNAL PROCESSORS
SPRS039A – FEBRUARY 1996 – REVISED JULY 1997
58
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251–1443
electrical characteristics over recommended operating case temperature range (unless otherwise
noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VOH
High-level output voltage
Low-level output voltage
VDD = 3.3
0.3 V, IOH = MAX
2.4
V
VOL
IOL = MAX
VDD = MAX, VO = VSS to VDD
VDD = MAX, VO = VSS to VDD
With internal pulldown
0.4
V
IIZ
Input current in high
impedance
A[22:0] (’LC548 only)
–175
175
μ
A
All other ’54x devices
–10
10
II
Input current
(VI = VSS to VDD)
TRST
–10
800
HPIENA
TMS, TCK, TDI, HPI||
With internal pulldown, RS = 0
–10
400
t V
With internal pullups
–400
10
μ
A
D[15:0], HD[7:0]
Bus holders enabled, VDD = MAX,
VI = VSS to VDD
–175
175
All other input-only pins
–10
10
IDDC
IDDP
Supply current, core CPU
VDD = 3.0 V, fx = 40 MHz,§ TC = 25
°
C
VDD = 3.0 V, fx = 40 MHz,§ TC = 25
°
C
PLL
×
1 mode,
40 MHz input
28
mA
Supply current, pins
10.8#
mA
IDD
Supply current,
pp y
standby
IDLE2
2
mA
IDLE3
Divide-by-two mode, CLKIN stopped
5
μ
A
Ci
Co
All typical values are at VDD = 3.3 V, TC = 25
°
C.
All input and output voltage levels except RS, INT0–INT3, NMI, CNT, X2/CLKIN, CLKMD0–CLKMD3 are LVTTL-compatible.
§Clock mode: PLL
×
1 with external source
This value was obtained with 50% usage of MAC and 50% usage of NOP instructions. Actual operating current varies with program being
executed.
#This value was obtained with single-cycle external writes, CLKOFF = 0 and load = 15 pF. For more details on how this calculation is performed,
refer to the Calculation of TMS320C54x Power Dissipationapplication report (literature number SPRA164).
||HPI input signals except for HPIENA.
Input capacitance
10
pF
Output capacitance
10
pF
A
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