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UR5HC418-FN Datenblatt(PDF) 9 Page - Semtech Corporation

Teilenummer UR5HC418-FN
Bauteilbeschribung  AT / PS/2 - Compatible Keyboard Encoder
PDF  14 Pages
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Hersteller  SEMTECH [Semtech Corporation]
Direct Link  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

UR5HC418-FN Datenblatt(HTML) 9 Page - Semtech Corporation

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Copyright ©1997-2001 Semtech Corporation
DOC5-418-DS-109
www.semtech.com
9
ALTERNATE SCHEMATIC FOR THE UR5HC418 WITH RESET CIRCUIT
C15
24
CS15
C14
25
CS14
C13
26
CS13
C12
27
CS12
C11
28
CS11
C10
29
CS10
C9
30
CS9
C8
31
CS8
C7
21
CS7
C6
20
CS6
C5
19
CS5
C4
17
CS4
C3
16
CS3
C2
15
CS2
C1
14
CS1
C0
13
CS0
C4A
18
R7A
40
R7
39
RDAT7
R6
6
RDAT6
R5
37
RDAT5
R4
36
RDAT4
R3
35
RDAT3
R2
34
RDAT2
R1
33
RDAT1
R0
32
RDAT0
EKDAT
EKBCLK
KBCLK
KBDAT
2K
GND
LINE INTERFACE
Vcc
11
10
41
2
9
8
23
43
4.00 MHz
42
22
GND
7
Vcc
Vcc
3
4
44 Pin PLCC
Vcc
8 x 22K
Vcc
Vcc
Vcc
GND
44
1
5
12
38
STATUS LEDs
RST
Vcc
NL
CL
SL
EKD
EKC
EKC1
IRQ
KC
KD
NC
PC KEYBOARD
PORT
COMMUNICATIONS
8042
EMULATION
PORT
COLUMN
SELECT
OUTPUTS
ROW
DATA
INPUTS
OSCI
OSCO
Vss
RP
VXA
VX
Vcc
2K
4.7K
TO SWITCH MATRIX
4.7K
4 X 47pF
GND
1 MEG
Telecom TC54VC4502ECB
1
2
3
Vcc



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