參數(shù)資料
型號(hào)： PSD934F2V-15M
廠商： 意法半導(dǎo)體
英文描述： Flash In-System Programmable ISP Peripherals For 8-bit MCUs
中文描述： Flash在系統(tǒng)可編程ISP的外設(shè)的8位微控制器
文件頁(yè)數(shù)： 6/94頁(yè)
文件大?。?/td> 476K
代理商： PSD934F2V-15M
PSD9XX Family
Preliminary Information
2
1.0
Introduction
(Cont.)
The PSD9XX family offers two methods to program PSD Flash memory while the PSD is
soldered to a circuit board.
J
In-System Programming (ISP) JTAG
An IEEE 1149.1 compliant JTAG interface is included on the PSD enabling the entire
device (both flash memories, the PLD, and all configuration) to be rapidly programmed
while soldered to the circuit board. This requires no MCU participation, which means
the PSD can be programmed anytime, even while completely blank.
The innovative JTAG interface to flash memories is an industry first, solving key
problems faced by designers and manufacturing houses, such as:
First time programming –
How do I get firmware into the flash the very first time
JTAG is the answer, program the PSD while blank with no MCU involvement.
Inventory build-up of pre-programmed devices –
How do I maintain an accurate
count of pre-programmed flash memory and PLD devices based on customer
demand How many and what version JTAG is the answer, build your hardware
with blank PSDs soldered directly to the board and then custom program just before
they are shipped to customer. No more labels on chips and no more wasted
inventory.
Expensive sockets –
How do I eliminate the need for expensive and unreliable
sockets JTAG is the answer. Solder the PSD directly to the circuit board. Program
first time and subsequent times with JTAG. No need to handle devices and bend the
fragile leads.
J
In-Application Programming (IAP)
Two independent flash memory arrays are included so the MCU can execute code
from one memory while erasing and programming the other. Robust product firmware
updates in the field are possible over any communication channel (CAN, Ethernet,
UART, J1850, etc) using this unique architecture. Designers are relieved of these
problems:
Simultaneous read and write to flash memory –
How can the MCU program the
same memory from which it is executing code It cannot. The PSD allows the MCU
to operate the two flash memories concurrently, reading code from one while erasing
and programming the other during IAP.
Complex memory mapping –
I have only a 64K-byte address space to start with.
How can I map these two memories efficiently A Programmable Decode PLD is the
answer. The concurrent PSD memories can be mapped anywhere in MCU address
space, segment by segment with extremely high address resolution. As an option,
the secondary flash memory can be swapped out of the system memory map when
IAP is complete. A built-in page register breaks the 64K-byte address limit.
Separate program and data space –
How can I write to flash memory while it
resides in “program” space during field firmware updates, my MCU won’t allow it!
The flash PSD provides means to “reclassify” flash memory as “data” space during
IAP, then back to “program” space when complete.
PSDsoft Express – ST’s software development tool – guides you through the design
process step-by-step making it possible to complete an embedded MCU design capable of
ISP/IAP in just hours. Select your MCU and PSDsoft Express will take you through the
remainder of the design with point and click entry, covering...PSD selection, pin definitions,
programmable logic inputs and outputs, MCU memory map definition, ANSI C code gener-
ation for your MCU, and merging your MCU firmware with the PSD design. When com-
plete, two different device programmers are supported directly from PSDsoft – FlashLINK
(JTAG) and PSDpro.
The PSD9XX is available in 52-pin PLCC and PQFP packages as well as a 64-pin TQFP
package.
相關(guān)PDF資料
PDF描述
PSD934F2V-20JI Low Power Economy BiCMOS Current Mode PWM 8-TSSOP -40 to 85
PSD954F2 Flash In-System Programmable ISP Peripherals For 8-bit MCUs
PSD954F2V Advanced PFC/PWM Combination Controllers 20-PDIP -40 to 105
PSD954F2V-12MI Advanced PFC/PWM Combination Controllers 20-PDIP -40 to 105
PSD954F2V-90J Advanced PFC/PWM Combination Controllers 20-SOIC -40 to 105
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PSD935G2-90U 功能描述:SPLD - 簡(jiǎn)單可編程邏輯器件 TQFP-80 5V 4M 90N RoHS:否 制造商:Texas Instruments 邏輯系列:TICPAL22V10Z 大電池?cái)?shù)量:10 最大工作頻率:66 MHz 延遲時(shí)間:25 ns 工作電源電壓:4.75 V to 5.25 V 電源電流:100 uA 最大工作溫度:+ 75 C 最小工作溫度:0 C 安裝風(fēng)格:Through Hole 封裝 / 箱體:DIP-24
PSD935G2V-90U 功能描述:SPLD - 簡(jiǎn)單可編程邏輯器件 U 511-PSD835G2V-90U RoHS:否 制造商:Texas Instruments 邏輯系列:TICPAL22V10Z 大電池?cái)?shù)量:10 最大工作頻率:66 MHz 延遲時(shí)間:25 ns 工作電源電壓:4.75 V to 5.25 V 電源電流:100 uA 最大工作溫度:+ 75 C 最小工作溫度:0 C 安裝風(fēng)格:Through Hole 封裝 / 箱體:DIP-24
PSD954F2-90J 功能描述:SPLD - 簡(jiǎn)單可編程邏輯器件 U 511-PSD854F2-90J RoHS:否 制造商:Texas Instruments 邏輯系列:TICPAL22V10Z 大電池?cái)?shù)量:10 最大工作頻率:66 MHz 延遲時(shí)間:25 ns 工作電源電壓:4.75 V to 5.25 V 電源電流:100 uA 最大工作溫度:+ 75 C 最小工作溫度:0 C 安裝風(fēng)格:Through Hole 封裝 / 箱體:DIP-24
PSD954F2-90M 功能描述:SPLD - 簡(jiǎn)單可編程邏輯器件 U 511-PSD854F2-90M RoHS:否 制造商:Texas Instruments 邏輯系列:TICPAL22V10Z 大電池?cái)?shù)量:10 最大工作頻率:66 MHz 延遲時(shí)間:25 ns 工作電源電壓:4.75 V to 5.25 V 電源電流:100 uA 最大工作溫度:+ 75 C 最小工作溫度:0 C 安裝風(fēng)格:Through Hole 封裝 / 箱體:DIP-24
PSD954F2V-90J 功能描述:SPLD - 簡(jiǎn)單可編程邏輯器件 5.0V 2M 90ns RoHS:否 制造商:Texas Instruments 邏輯系列:TICPAL22V10Z 大電池?cái)?shù)量:10 最大工作頻率:66 MHz 延遲時(shí)間:25 ns 工作電源電壓:4.75 V to 5.25 V 電源電流:100 uA 最大工作溫度:+ 75 C 最小工作溫度:0 C 安裝風(fēng)格:Through Hole 封裝 / 箱體:DIP-24
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*