參數(shù)資料
型號: MC56F8346
廠商: Motorola, Inc.
英文描述: 56F8346 16-bit Hybrid Controller
中文描述: 56F8346 16位混合控制器
文件頁數(shù): 155/160頁
文件大小: 1415K
代理商: MC56F8346
Power Distribution and I/O Ring Implementation
56F8346 Technical Data
Preliminary
155
Consider all device loads as well as parasitic capacitance due to PCB traces when calculating
capacitance. This is especially critical in systems with higher capacitive loads that could create
higher transient currents in the V
DD
and V
SS
circuits.
Take special care to minimize noise levels on the V
REF
, V
DDA
and V
SSA
pins
Designs that utilize the TRST pin for JTAG port or EOnCE module functionality (such as
development or debugging systems) should allow a means to assert TRST whenever RESET is
asserted, as well as a means to assert TRST independently of RESET. Designs that do not require
debugging functionality, such as consumer products, should tie these pins together.
Because the Flash memory is programmed through the JTAG/EOnCE port, the designer should
provide an interface to this port to allow in-circuit Flash programming
12.3 Power Distribution and I/O Ring Implementation
Figure 12-1
illustrates the general power control incorporated in the 56F8346. This chip contains
an internal regulator which cannot be disabled. The regulator takes regulated 3.3V power from the
V
DD_IO
pins and provides 2.5V to the internal logic of the chip. This means the entire part is
powered from the 3.3V supply.
Notes:
Flash, RAM and internal logic are powered from the core regulator output
V
PP
1 and V
PP
2 are not connected in the customer system
All circuitry, analog
and
digital, shares a common V
SS
bus
Figure 12-1 56F8346 Power Management
REG
CORE
V
CAP
I/O
ADC
V
DD
V
SS
OCS
REG
V
DDA_OSC_PLL
ROSC
V
SSA_ADC
V
DDA_ADC
V
REFH
V
REFP
V
REFMID
V
REFN
V
REFLO
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
.
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MC56F8346EVM 制造商:Freescale Semiconductor 功能描述:Tools Development kit Kit Contents:Inst
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MC56F8346VFV60 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC 60MHz 60MIPS RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT
MC56F8346VFVE 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC 16 BIT HYBRID CNTRLR RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT