參數(shù)資料
型號: PSD211R
英文描述: Field Programmable Microcontroller Peripherals(可編程邏輯,可加密,19個可單獨配置I/O,通用PLD有12個輸入)
中文描述: 現(xiàn)場可編程微控制器外圍設備(可編程邏輯,可加密,19個可單獨配置的I / O,通用PLD的有12個輸入)
文件頁數(shù): 30/32頁
文件大?。?/td> 175K
代理商: PSD211R
PSD211R
2-30
Symbol
C
IN
C
OUT
C
VPP
Parameter
Conditions
V
IN
= 0 V
V
OUT
= 0 V
V
PP
= 0 V
Typical
27
Max
4
8
18
Unit
pF
pF
pF
Capacitance (for input pins only)
Capacitance (for input/output pins)
Capacitance (for WR/V
PP
or R/W/V
PP
)
6
12
25
NOTES:
26. This parameter is only sampled and is not 100% tested.
27. Typical values are for T
A
= 25°C and nominal supply voltages.
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 PSD211R 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 window should be covered by an opaque substance. Upon
delivery from WSI, or after each erasure, the PSD211R EPROM and PAD are 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.
Pin
Capacitance
26
Figure 16.
AC Testing
Input/Output
Waveform
Figure 17.
AC Testing
Load Circuit
3.0V
0V
TEST POINT
1.5V
Erasure and
Programming
DEVICE
UNDER TEST
2.01 V
195
C
L
= 30 pF
(INCLUDING
SCOPE AND JIG
CAPACITANCE)
相關PDF資料
PDF描述
PSD301-20QI Field-Programmable Peripheral
PSD301-20U 40V 1 Form A Photo Voltaic Relay in a 4-Lead SOP Package; A PVY116 with Standard Packaging
PSD301-20UI Field-Programmable Peripheral
PSD301-20XI Field-Programmable Peripheral
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