參數(shù)資料
型號: TMS320M642AGNZ5
廠商: Texas Instruments, Inc.
英文描述: 1A, 52kHz (250khz Max) Current Mode PWM Control Circuit with 8.4V UVLO Threshold and 96% Max Duty Cycle<sup>3</sup><sup>3</sup><sup>3</sup><sup>3</sup><sup>3</sup><sup>3</sup><sup>3</sup><sup>3</sup><sup>3</sup><sup>3</sup><sup>3</sup> ; Package: 8 LEAD PDIP; No of Pins: 8; Container: Rail; Qty per Container: 50
中文描述: 視頻/影像定點數(shù)字信號處理器
文件頁數(shù): 91/123頁
文件大?。?/td> 1205K
代理商: TMS320M642AGNZ5
www.ti.com
t
w(RSL1)
t
h(boot-mode)(B)
V
DDIO
, V
DD3VFL
V
DDA2
, V
DDAIO
(3.3 V)
XCLKIN
X1/X2
XRS
Boot-Mode
Pins
V
DD
, V
DD1A18,
V
DD2A18
(1.8 V)
XCLKOUT
I/O Pins
User-Code Dependent
User-Code Dependent
Boot-ROM Execution Starts
Peripheral/GPIO Function
Based on Boot Code
GPIO Pins as Input
OSCCLK/8
(A)
GPIO Pins as Input (State Depends on Internal PU/PD)
t
OSCST
User-Code Dependent
Address/Data/
Control
(Internal)
Address/Data Valid. Internal Boot-ROM Code Execution Phase
User-Code Execution Phase
t
d(EX)
TMS320F2808, TMS320F2806
TMS320F2801, UCD9501
Digital Signal Processors
SPRS230F–OCTOBER 2003–REVISED SEPTEMBER 2005
A.
Upon power up, SYSCLKOUT is OSCCLK/2. Since the XCLKOUTDIV bits in the XCLK register come up with a reset
state of 0, SYSCLKOUT is further divided by 4 before it appears at XCLKOUT. This explains why XCLKOUT =
OSCCLK/8 during this phase.
After reset, the boot ROM code samples Boot Mode pins. Based on the status of the Boot Mode pin, the boot code
branches to destination memory or boot code function. If boot ROM code executes after power-on conditions (in
debugger environment), the boot code execution time is based on the current SYSCLKOUT speed. The SYSCLKOUT
will be based on user environment and could be with or without PLL enabled.
B.
Figure 6-5. Power-on Reset
Electrical Specifications
91
相關(guān)PDF資料
PDF描述
TMS320DM642GDK500 Adjustable 2.5-36V +/-2.2% Tolerance, 1-100mA Shunt Regulator - PB Free; Package: SOIC-8 Narrow Body; No of Pins: 8; Container: Tape and Reel; Qty per Container: 2500
TMS320DM642GNZ600 Video/Imaging Fixed-Point Digital Signal Processor
TMS320DM642ZDK600 Adjustable 2.5-36V +/-2.2% Tolerance, 1-100mA Shunt Regulator; Package: TO-92 (TO-226) 5.33mm Body Height; No of Pins: 3; Container: Fan-Fold; Qty per Container: 2000
TMS320DM642ZNZ500 Video/Imaging Fixed-Point Digital Signal Processor
TMS320DM642ZNZ600 Adjustable 2.5-36V +/-2.2% Tolerance, 1-100mA Shunt Regulator; Package: 8 LEAD PDIP; No of Pins: 8; Container: Rail; Qty per Container: 50
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