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WS82C55AP датащи(PDF) 21 Page - Wing Shing Computer Components

номер детали WS82C55AP
подробное описание детали  CMOS Programmable peripheral Interface
PDF  25 Pages
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производитель  WINGS [Wing Shing Computer Components]
домашняя страница  http://www.wingshing.com/en
Logo WINGS - Wing Shing Computer Components

WS82C55AP датащи(HTML) 21 Page - Wing Shing Computer Components

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21
AC Test Circuit
AC Testing Input, Output Waveforms
Burn-In Circuits
FIGURE 30. WRITE TIMING
FIGURE 31. READ TIMING
Timing Waveforms (Continued)
WR
DATA
A0-A1,
CS
BUS
tWW (9)
tDW (10)
tWD (11)
tWA (8)
tAW (7)
RD
DATA
A0-A1,
CS
BUS
tRR (3)
tRA (2)
tAR (1)
VALID
(4) tRD
tDF (5)
HIGH IMPEDANCE
R1
V1
OUTPUT FROM
DEVICE UNDER
TEST
NOTE: Includes STRAY and JIG Capacitance
TEST
POINT
C1
R2
(SEE NOTE)
TEST CONDITION DEFINITION TABLE
TEST CONDITION
V1
R1
R2
C1
1
1.7V
523
Ω
Open
150pF
2VCC
2k
Ω
1.7k
Ω
50pF
3
1.5V
750
Ω
Open
50pF
INPUT
VIH + 0.4V
VIL - 0.4V
1.5V
1.5V
VOH
VOL
OUTPUT
AC Testing: All AC Parameters tested as per test circuits. Input RISE and
FALL times are driven at 1ns/V.
DIP
NOTES:
1. VCC = 5.5V ± 0.5V
2. VIH = 4.5V
± 10%
3. VIL = -0.2V to 0.4V
4. GND = 0V
F7
F8
F9
F4
F3
GND
F0
F1
F10
F6
F7
F8
F9
F6
F7
F8
F9
F10
F6
33
34
35
36
37
38
40
32
31
30
29
24
25
26
27
28
21
22
23
13
2
3
4
5
6
7
8
9
10
11
12
14
15
16
17
18
19
20
39
1
F12
F13
F14
F2
F5
F15
F11
F12
F13
F14
F15
F11
F12
VCC
F13
F14
F15
F11
F12
F11
C1
F10
WS82C55A-5
40L
WS82C55A



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