參數(shù)資料
型號: TMS320LC542-40
元件分類: 數(shù)字信號處理
英文描述: Digital Signal Processor
中文描述: 數(shù)字信號處理器
文件頁數(shù): 61/111頁
文件大?。?/td> 1426K
代理商: TMS320LC542-40
TMS320C54x, TMS320LC54x, TMS320VC54x
FIXED-POINT DIGITAL SIGNAL PROCESSORS
SPRS039C – FEBRUARY 1996 – REVISED DECEMBER 1999
61
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251–1443
electrical characteristics and operating conditions — ’LC54x, ’VC54x (continued)
See Table 1, Characteristics of the ’54x Processors,for specific device applicability.
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
IIZ
IOL = MAX
VDD = MAX, VI = VSS to VDD
With internal pulldown
0.4
V
μ
A
Input current in high impedance
–10
10
TRST
–10
800
Input current
(VI= VSSto VDD)
(VI = VSS to VDD)
HPIENA
TMS, TCK, TDI, HPI||
With internal pulldown, RS = 0
–10
400
II
With internal pullups
–400
10
μ
A
D[15:0], HD[7:0]
Bus holders enabled, VDD = MAX
–150
250
All other input-only pins
–10
10
IDDC
IDDP
Supply current, core CPU
VDD = 3.3 V, fx = 40 MHz,§ TC = 25
°
C
VDD = 3.3 V, fx = 40 MHz,§ TC = 25
°
C
PLL
×
1 mode,
40 MHz input
30
12#
mA
Supply current, pins
mA
IDD
Supply current,
standby
IDLE2
2
mA
IDLE3
Divide-by-two mode, CLKIN stopped
5
μ
A
Ci
Co
All values are typical unless otherwise specified.
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.
VIL(MIN)
VI
VIL(MAX) or VIH(MIN)
VI
VIH(MAX)
Input capacitance
10
pF
Output capacitance
10
pF
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