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參數(shù)資料
| 型號： | PSD813F4V |
| 英文描述： | -200V 100kRad Hi-Rel Single P-Channel TID Hardened MOSFET in a SMD-2 package; A IRHNA597260 with Standard Packaging |
| 中文描述： | Flash在系統(tǒng)編程（ISP）外設(shè)的8位微控制器 |
| 文件頁數(shù)： | 63/103頁 |
| 文件大?。?/td> | 1185K |
| 代理商： | PSD813F4V |
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PSD81XFX, PSD83XF2, PSD85XF2
RESET TIMING AND DEVICE STATUS AT RESET
Upon Power-up, the PSD8XXFX requires a Reset
(RESET) pulse of duration t
NLNH-PO
after V
CC
is
steady. During this period, the device loads inter-
nal configurations, clears some of the registers
and sets the Flash memory into Operating mode.
After the rising edge of Reset (RESET), the
PSD8XXFX remains in the Reset mode for an ad-
ditional period, t
OPR
, before the first memory ac-
cess is allowed.
The Flash memory is reset to the READ Mode
upon Power-up. Sector Select (FS0-FS7 and
CSBOOT0-CSBOOT3) must all be Low, Write
Strobe (WR, CNTL0) High, during Power On Re-
set for maximum security of the data contents and
to remove the possibility of a byte being written on
the first edge of Write Strobe (WR, CNTL0). Any
Flash memory WRITE cycle initiation is prevented
automatically when V
CC
is below V
LKO
.
Warm Reset
Once the device is up and running, the device can
be reset with a pulse of a much shorter duration,
t
NLNH
. The same t
OPR
period is needed before the
device is operational after warm reset. Figure 31
shows the timing of the Power-up and warm reset.
I/O Pin, Register and PLD Status at Reset
Table 33 shows the I/O pin, register and PLD sta-
tus during Power On Reset, warm reset and Pow-
er-down mode. PLD outputs are always valid
during warm reset, and they are valid in Power On
Reset once the internal PSD8XXFX Configuration
bits are loaded. This loading of PSD8XXFX is
completed typically long before the V
CC
ramps up
to operating level. Once the PLD is active, the
state of the outputs are determined by the PSDa-
bel equations.
Reset of Flash Memory Erase and Program
Cycles (on the PSD834Fx)
A Reset (RESET) also resets the internal Flash
memory state machine. During a Flash memory
Program or Erase cycle, Reset (RESET) termi-
nates the cycle and returns the Flash memory to
the Read Mode within a period of t
NLNH-A
.
Figure 31. Reset (RESET) Timing
tNLNH-PO
Power-On Reset
tOPR
AI02866b
RESET
tNLNH
tNLNH-A
Warm Reset
tOPR
V
CC
V
CC
(min)
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PSD813F4VA-15J | 功能描述:SPLD - 簡單可編程邏輯器件 U 511-PSD813F2VA-15J RoHS:否 制造商:Texas Instruments 邏輯系列:TICPAL22V10Z 大電池數(shù)量:10 最大工作頻率:66 MHz 延遲時間: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 |
| PSD813F4VA-15U | 功能描述:SPLD - 簡單可編程邏輯器件 U 511-PSD813F2VA-15U RoHS:否 制造商:Texas Instruments 邏輯系列:TICPAL22V10Z 大電池數(shù)量:10 最大工作頻率:66 MHz 延遲時間: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 |
| PSD813F5-12JI | 制造商:WSI 功能描述: |
| PSD813F5-15JI | 制造商:WSI 功能描述: |
| PSD813F5-15U | 制造商:WSI 功能描述: 制造商:WSI 功能描述:1M X 1 FLASH, 27 I/O, PIA-GENERAL PURPOSE, PQFP64 |
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