參數(shù)資料
型號(hào)： PSD402A2
英文描述： Field Programmable Microcontroller Peripherals(可編程邏輯，16K位SRAM,40個(gè)可編程I/O,通用PLD有59個(gè)輸入)
中文描述： 現(xiàn)場(chǎng)可編程微控制器外圍設(shè)備（可編程邏輯，16K的位的SRAM，40余個(gè)可編程輸入/輸出，通用PLD的有59個(gè)輸入）
文件頁(yè)數(shù)： 93/97頁(yè)
文件大小： 309K
代理商： PSD402A2
PSD4XX Famly
4-93
Symbol
Parameter
14
Conditions Typical
15
Max
Unit
C
IN
C
OUT
C
VPP
Capacitance (for input pins only)
V
IN
= 0 V
V
OUT
= 0 V
V
PP
= 0 V
4
6
pF
Capacitance (for input/output pins)
8
12
pF
Capacitance (for WR/V
PP
or R/W/V
PP
)
18
25
pF
NOTES:
14.These parameters are only sampled and are not 100% tested.
15.Typical values are for T
A
= 25°C and nominal supply voltages.
T
A
= 25 °C, f = 1 MHz
Pin Capacitance
Figure 49.
AC Testing
Input/Output
Waveform
Figure 50.
AC Testing
Load Circuit
Erasure and
Programmng
3.0V
0V
TEST POINT
1.5V
DEVICE
UNDER TEST
2.01 V
195
C
L
= 30 pF
(INCLUDING
SCOPE AND JIG
CAPACITANCE)
To clear all locations of their programmed contents, expose the window packaged device
to an ultra-violet light source. A dosage of 30 W second/cm
2
is required. This dosage can
be obtained with exposure to a wavelength of 2537 and intensity of 12000 μW/cm
2
for 40
to 45 minutes. The device should be about 1 inch from the source, and all filters should be
removed from the UV light source prior to erasure.
The PSD4XX and similar devices will erase with light sources having wavelengths shorter
than 4000 . Although the erasure times will be much longer than with UV sources at 2537
, exposure to fluorescent light and sunlight eventually erases the device. For maximum
system reliability, these sources should be avoided. If used in such an environment, the
package windows should be covered by an opaque substance.
Upon delivery from WSI, or after each erasure, the PSD4XX device has all bits in the PAD
and EPROM in the “1” or high state. The configuration bits are in the “0” or low state. The
code, configuration, and PAD MAP data are loaded through the procedure of programming
Information for programming the device is available directly from WSI. Please contact your
local sales representative.
相關(guān)PDF資料
PDF描述
PSD403A1 Field Programmable Microcontroller Peripherals(可編程邏輯，16K位SRAM,40個(gè)可編程I/O,通用PLD有37個(gè)輸入)
PSD403A2 Field Programmable Microcontroller Peripherals(可編程邏輯，16K位SRAM,40個(gè)可編程I/O,通用PLD有59個(gè)輸入)
PSD411A2 Field Programmable Microcontroller Peripherals(可編程邏輯，16K位SRAM,40個(gè)可編程I/O,通用PLD有59個(gè)輸入)
PSD412A2 Field Programmable Microcontroller Peripherals(可編程邏輯，16K位SRAM,40個(gè)可編程I/O,通用PLD有59個(gè)輸入)
PSD413A2 Field Programmable Microcontroller Peripherals(可編程邏輯，16K位SRAM,40個(gè)可編程I/O,通用PLD有59個(gè)輸入)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PSD402A2-12J 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Field-Programmable Peripheral
PSD402A2-12JI 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Field-Programmable Peripheral
PSD402A2-12LI 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Field-Programmable Peripheral
PSD402A2-12U 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Field-Programmable Peripheral
PSD402A2-12UI 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Field-Programmable Peripheral
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