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參數資料
型號: PSD834F5V-15
廠商: 意法半導體
英文描述: Flash In-System Programmable (ISP) Peripherals for 8-bit MCUs, 5V
中文描述: Flash在系統可編程(ISP)的周邊8位MCU,5V的
文件頁數: 66/110頁
文件大小: 1737K
代理商: PSD834F5V-15
PSD813F2, PSD833F2, PSD834F2, PSD853F2, PSD854F2
66/110
PSD Chip Select Input (CSI, PD2)
PD2 of Port D can be configured in PSDsoft Ex-
press as PSD Chip Select Input (CSI). When Low,
the signal selects and enables the internal Flash
memory, EEPROM, SRAM, and I/O blocks for
READ or WRITE operations involving the PSD. A
High on PSD Chip Select Input (CSI, PD2) dis-
ables the Flash memory, EEPROM, and SRAM,
and reduces the PSD power consumption. How-
ever, the PLD and I/O signals remain operational
when PSD Chip Select Input (CSI, PD2) is High.
There may be a timing penalty when using PSD
Chip Select Input (CSI, PD2) depending on the
speed grade of the PSD that you are using. See
the timing parameter t
SLQV
in
Table 61., page 94
or
Table 62., page 95
.
Input Clock
The PSD provides the option to turn off CLKIN
(PD1) to the PLD to save AC power consumption.
CLKIN (PD1) is an input to the PLD AND Array and
the Output Macrocells (OMC).
During Power-down mode, or, if CLKIN (PD1) is
not being used as part of the PLD logic equation,
the clock should be disabled to save AC power.
CLKIN (PD1) is disconnected from the PLD AND
Array or the Macrocells block by setting Bits 4 or 5
to a 1 in PMMR0.
Input Control Signals
The PSD provides the option to turn off the input
control signals (CNTL0, CNTL1, CNTL2, Address
Strobe (ALE/AS, PD0) and DBE) to the PLD to
save AC power consumption. These control sig-
nals are inputs to the PLD AND Array. During
Power-down mode, or, if any of them are not being
used as part of the PLD logic equation, these con-
trol signals should be disabled to save AC power.
They are disconnected from the PLD AND Array
by setting Bits 2, 3, 4, 5, and 6 to a 1 in PMMR2.
Table 32. APD Counter Operation
APD Enable Bit
ALE PD Polarity
ALE Level
APD Counter
0
X
X
Not Counting
1
X
Pulsing
Not Counting
1
1
1
Counting (Generates PDN after 15 Clocks)
1
0
0
Counting (Generates PDN after 15 Clocks)
相關PDF資料
PDF描述
PSD853F2-12 Flash In-System Programmable (ISP) Peripherals for 8-bit MCUs, 5V
PSD853F2-15 Flash In-System Programmable (ISP) Peripherals for 8-bit MCUs, 5V
PSD853F2-20 Flash In-System Programmable (ISP) Peripherals for 8-bit MCUs, 5V
PSD853F2-70 Flash In-System Programmable (ISP) Peripherals for 8-bit MCUs, 5V
PSD853F2-90 Flash In-System Programmable (ISP) Peripherals for 8-bit MCUs, 5V
相關代理商/技術參數
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PSD835G2-90U 功能描述:靜態隨機存取存儲器 5.0V 4M 90ns RoHS:否 制造商:Cypress Semiconductor 存儲容量:16 Mbit 組織:1 M x 16 訪問時間:55 ns 電源電壓-最大:3.6 V 電源電壓-最小:2.2 V 最大工作電流:22 uA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風格:SMD/SMT 封裝 / 箱體:TSOP-48 封裝:Tray
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PSD835G2V-90U 功能描述:靜態隨機存取存儲器 3.0V 4M 90ns RoHS:否 制造商:Cypress Semiconductor 存儲容量:16 Mbit 組織:1 M x 16 訪問時間:55 ns 電源電壓-最大:3.6 V 電源電壓-最小:2.2 V 最大工作電流:22 uA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風格:SMD/SMT 封裝 / 箱體:TSOP-48 封裝:Tray
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