SEMTECH UR5HCFJ8-P

LapCoderTM UR5HCFJ8
Low-Power Keyboard
Encoder for Portable Systems
HID & SYSTEM MANAGEMENT PRODUCTS, KEYCODERTM FAMILY
The UR5HCFJ8 fully supports the
IBM standard keyboard
communication protocol; each key
press generates one of the scan
codes designated in the IBM
Technical Reference Manuals.
The keyboard encoder handles
the scanning, debounce, and
encoding of 82 keys organized on
an 8x16 matrix and supports
embedded numeric keypad
functions as well as alternate scan
codes for specific keys, so that a
keyboard with only 82 keys is able
to emulate the functionality of a
101/102 keyboard.
FEATURES
• Interfaces the Fujitsu FKB7211 or
other similar laptop/notebook
keyboards to a BIOS-compatible
systems
• AT / PS/2-compatible
• Interfaces an external keyboard /
keypad or other 8042-compatible
devices
• Low-power, single IC suitable for
3V battery-operated systems
• Implements all functions of an
101/102 keyboard with only
82-keys
• Available in DIP, PLCC and Quad
Flat packages
• Custom versions available in small
or large quantities
APPLICATIONS
• Laptop/Notebook
• Portable Equipment
• Industrial Keyboards
• POS Terminals
• Public Information Kiosks
PIN DESCRIPTIONS
R6
NL
VX
VXA
_IRQ
_RESET
VCC
OSCI
OSC0
EKC1
NC
The LapCoder is a versatile, lowpower keyboard encoder for
portable systems. The UR5HCFJ8
provides two bi-directional channels
for communication with a BIOScompatible system as well as
any optional keyboard-compatible
devices, such as a 101/102 desktop
keyboard.
TM
6
In addition to the system’s keyboard
communication port the UR5HCFJ8
provides a fully functional keyboard
input port that can be used by a
standard 82/101/102 keyboard or
another 8042-compatible device,
such as an external numeric
keypad, an OCR, or a bar-code
reader. Input from both the matrix
and the external device is
multiplexed and presented to the
system as if it were coming from a
single source.
1
40
VCC
_IRQ
2
39
OSCI
VX
3
38
OSCO
NL
4
37
EKC1
R6
5
36
R7
RP
6
35
SL
KD
7
34
R5
KC
8
33
R4
EKC
9
32
R3
EKD
10
31
R2
CL
11
30
R1
C0
12
29
R0
C1
13
28
C8
C2
14
27
C9
C3
15
26
C10
C4
16
25
C11
C5
17
24
C12
C6
18
23
C13
C7
19
22
C14
VSS
20
21
C15
DIP
7
12
17
18
1
40
39
PLCC
34
23
R6
RP
KD
KC
EKC
EKD
CL
C0
C1
C2
C3
QFP
LapCoder is a trademark of Semtech Corp. All
other trademarks belong to their respective
companies.
Copyright Semtech, 1997-2001
DOC5-FJ8-DS-107
29
28
C4
C5
C6
C7
NC
GND
C15
C14
C13
C12
NC
The features of UR5HCFJ8 make it
ideal for use in PC/AT/PS/2
laptop/notebook designs that utilize
the Fujitsu FKB7211 low-profile, fulltravel membrane keyboard.
_RESET
RP
KD
KC
EKC
EKD
CL
C0
C1
C2
C3
C4
1
R7
SL
R5
R4
R3
R2
R1
R0
C8
C9
C10
NL
NC
VX
C5
_IRQ
C6
_RESET
C7
NC
GND
NC
NC
VCC C15/KT
C14
OSCI
C13
OSCO
C12
EKC1
C11
R7
DESCRIPTION
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SL
R5
R4
R3
R2
R1
R0
C8
C9
C10
C11
ORDERING CODE
Package options
40-pin Plastic DIP
44-pin, Plastic PLCC
44-pin, Plastic QFP
Pitch In mm’s
2 54 mm
1.27 mm
0.8 mm
TA = -40°C to +85°C
UR5HCFJ8-P
UR5HCFJ8-FN
UR5HCFJ8-FB
FUNCTIONAL DIAGRAM
NL/CL/SL
3
Data Buffer
Status LEDs
R0R7
Row Data Inputs
EKC1
Interrupt Control
8
Column Select
Ouputs
C0C15
16
Keyboard Encoder
KC
KD
EKC
EKD
PC
Communication
Channel
Mode Control
8042 Emulation
(External Keyboard)
Communication
Channel
Copyright Semtech, 1997-2001
DOC5-FJ8-DS-107
2
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FUNCTIONAL DESCRIPTION
The UR5HCFJ8 consists functionally
of six major sections (see Functional
Diagram, previous page). These
are the Keyboard Encoder, the
Mode Control Unit, the PC
Communication Channel, the Data
Buffer, the Interrupt Control and the
8042 Emulation Channel. All
sections communicate with each
other and operate concurrently.
KEYBOARD ENCODER
The controller continuously scans a
keyboard organized as an 8 row by
16 column matrix for a maximum of
128 keys. Smaller-size keyboards
are supported provided that all
unused row lines are pulled to Vcc.
The IC selects 1 of the 16 column
lines (C0-C15) every 512 mS and
then reads the row data lines (R0R7). A key closure is detected as a
0 in the corresponding position of
the matrix. A complete scan cycle
for the entire keyboard takes
approximately 9.2 mS. Each key
found pressed is debounced for a
period of 20 mS. Once the key is
verified, the corresponding key
code(s) are loaded into the transmit
buffer of the PC Communication
Channel.
PIN DEFINITIONS
Mnemonic
VCC
VSS
OSCI
OSCO
_RESET
EKC1
VX
VXA
RP
KC
KD
DIP
40
20
39
38
1
37
QFP
38
17
37
36
41
35
Type
I
I
I
O
I
43
6
8
4
3
7
9
2
4
I
I
I
I/O
7
8
3
I/O
EKD
10
11
6
I/O
ECK
9
10
5
I/O
_IQR
2
2
42
I
R0-R5
R6
R7
C0-C7
29-34
5
36
12-19
27-32
1
34
8-15
C8-C15
28-21
32-37
6
39
13-17
19-21
31-24
I
I
I
O
O
O
O
O
O
O
CL
NL
SL
NC
3
PLCC
44
22
43
42
1
41
11
4
35
12
5
38
18
23,40
26-23
21-18
7
44
33
16,22
39,40
Name and Function
Power Supply: +5V
Ground
Oscillator input
Oscillator output
Reset: Apply 0V to provide orderly start-up
External Keyboard Clock 1: Connects
to external keyboard Clock Line and is used
to generate an interupt for every Clock Line
transition.
Tie to Vcc
Tie to Vcc
Reserved: Ties to Vcc
Keyboard Clock: Connects to PC
keyboard port clock line
Keyboard Data: Connects to
PC port data line
External Keyboard Data: Connects to
external keyboard Data Lne
External Keyboard Clock: Connects
to external keyboard Clock Line
Interrupt Line: Reserved for low-power
applications
Row Data Inputs
Column Select Outputs: Selects 1 of
16 columns
Caps Lock LED
Num Lock LED
Scroll Lock LED
No Connects: These pins are unused.
Note: An underscore before a pin mnemonic denotes an active low signal.
Switch Matrix Encoding
Each matrix location is programmed
to represent either a single key or a
key combination of the IBM 101/102
standard keyboard.
Scan Code Table Sets
The UR5HCFJ8 supports all three
scan code table sets. Scan Code
Sets 1 and 2 are the default sets for
AT/PS/2 systems. Scan Code Table
Set 3 allows the user to program
individual key attributes such as
Make/Break and Typematic or
Single-Touch Action. For more
information, refer to the IBM
Technical Reference Manuals.
Copyright Semtech, 1997-2001
DOC5-FJ8-DS-107
3
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KEYBOARD ENCODER, (CON’T)
MODE CONTROL
Embedded Numeric Keypad
Operating modes are defined by the logic level of the mode pin in the Mode
Control Unit.
The UR5HCFJ8 implements an
embedded numeric keypad. The
Numeric Keypad Function is
invoked by pressing the Num Lock
Key.
FN Key
A special FN Key has been
implemented to perform the
following functions while it is held
pressed:
•
•
•
•
Function Key F1 becomes F11
Function Key F2 becomes F12
Ctrl Left Key becomes Ctrl Right
Alt Left Key becomes Alt Right
If Num Lock is set:
• Embedded numeric keypad keys
become regular keys.
If Num Lock is not set:
• Embedded numeric keypad keys
provide the same codes as a
numeric keypad when the Num
Lock is not set (Arrow Keys, PgUp,
PgDn, etc.)
Status LED indicators
The controller provides interfacing
for three LED shift status indicators.
All three pins are active low to
indicate the status of the host
system (Num Lock, Caps Lock and
Scroll Lock). They are set by the
system (AT/PS/2 protocol).
Copyright Semtech, 1997-2001
DOC5-FJ8-DS-107
N-Key Rollover
In this mode, the code(s) corresponding to each key press are transmitted
to the host system as soon as that key is debounced, independently of the
release of other keys. If a key is defined to be Typematic, the
corresponding code(s) will be transmitted while that key is held pressed.
When the key is released, the corresponding break code(s) are then
transmitted to the host system. If the released key happens to be the most
recently pressed, then Typematic Action is terminated. There is no limitation
to the number of keys that can be held pressed at the same time. However,
two or more key closures, occurring within a time interval of less than 5 mS,
will set an error flag and will not be processed. This procedure protects
against the effects of accidental key presses.
“Ghost” Keys
In any scanned contact switch matrix, whenever three keys defining a
rectangle on the switch matrix are held pressed at the same time, a fourth
key positioned on the fourth corner of the rectangle is sensed as being
pressed. This is known as the “ghost” or “phantom” key problem. Although
the problem cannot be totally
Actual key presses
eliminated without using external
hardware, there are methods to
neutralize its negative effects for most
practical applications. Keys that are
intended to be used in combinations or
are likely to be pressed at the same
“Ghost”
Key
time by a fast typist (i.e., keys located
in adjacent positions on the keyboard)
should be placed in the same row or
column of the matrix, whenever
possible. Shift keys (Shift, Alt, Ctrl)
should not reside in the same row (or Figure 1: “Ghost” or “Phantom” Key
Problem
column) with any other keys.
The UR5HCFJ8 has built-in mechanisms to detect the presence of “ghost”
keys, thus eliminating the necessity of external hardware.
4
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SPECIAL HANDLING
PC COMMUNICATION
Hot Plug-Ins of External
Device
The UR5HCFJ8 implements all the
standard functions of
communication with a BIOScompatible PC/XT or AT/PS/2 host
system. Two lines, KC and KD,
provide bi-directional clock and
data signals. In addition, the
UR5HCFJ8 supports all commands
from and to the system, as
described in the IBM Technical
Reference Manuals.
The UR5HCFJ8 will detect the
presence of an external device.
If an external keyboard or other
device was not connected during
power-on and is connected at a
later time, the encoder will proceed
with the normal reset routine in
order to properly initialize the
external keyboard. After
communication has been
established, the encoder will
continue to check for the presence
of the external keyboard. While the
external device is connected, the
encoder will not enter the sleep
mode. If the device is
disconnected at a later time, the
encoder will become aware of it.
If a subsequent connection takes
place, the controller will reinitiate a
reset sequence. This unique
feature allows the user to connect
or disconnect an external device at
any time without having to reset the
system.
Shift Status LEDs
Shift Status LEDs (Num Lock, Caps
Lock and Scroll Lock) indicate the
status of the system and are
controlled by commands sent from
the system. Set/Reset Status
Indicator commands from the
system will be executed both by the
external keyboard and the scanned
matrix. For example, if the user
presses the Caps Lock Key on
either keyboard, the Caps Lock
LED will be affected in both
keyboards. The LED status
indicators are properly set after
every new connection of an external
keyboard.
Copyright Semtech, 1997-2001
DOC5-FJ8-DS-107
The following table shows the
commands that the system may
send and their values in hex.
Command
Hex Value
Set/Reset Status
Indicators
ED
Echo
EE
Invalid Command
EF
Select Alternate
Scan Codes
F0
Invalid Command
F1
Read ID
F2
Set Typematic
Rate/Delay
F3
Enable
F4
Default Disable
F5
Set Default
F6
Set All Keys
Typematic
Make/Break
Make
Typematic/Make/Break
F7
F8
F9
FA
Set Key Type
Typematic
Make/Break
Make
FB
FC
FD
Resend
FE
Reset
FF
Table 2: Keyboard Commands from the
System (AT/PS/2 protocol)
These commands are supported in
the AT/PS/2 protocol and can be
sent to the keyboard at any
time.The following table shows the
commands that the keyboard may
send to the system.
5
Command
Hex Value
Key Detection
Error/Overrun
00*
Keyboard ID
83AB
BAT Completion Code
AA
BAT Failure Code
FC
Echo
EE
Acknowledge (Ack)
FA
Resend
FE
Key Detection
Error/Overrun
FF**
*Code Sets 2 and 3
**Code Set 1
Table 3: Keyboard Commands to the
System (AT/PS/2 protocol)
8042 Emulation Channel
The UR5HCFJ8 fully emulates a
system’s keyboard port, available to
a standard 82/101/102 external
keyboard or other 8042-compatible
device. Communication with a
keyboard-compatible device is
accomplished by clock and data
lines via EKC and EKD pins,
respectively. A third pin, EKC1,
connects to the Clock Line and
interrupts the controller whenever
the external device initiates a
communication session. When
power is first applied, the controller
proceeds with the standard reset
sequence with the external device.
Data and commands initiated from
the external device are buffered in
the controller’s FIFO along with data
from the scanned matrix, and then
are presented to the system as if
they were coming from a single
source. After they are
acknowledged, commands and
data from the system are
transmitted to the external device.
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KEY MAP FOR FKB7211 (UR5HCFJ8)
Rows (R0–R7)
0
LCtrl*
2
Tab
F1*
Z
X
C
1
CapLk
V
B
N
F2
A
S
D
F
2
3
4
T
Y
F4
F5
F6
F7
F3
%
5
W
6
7
Pad 7
R
Q
Copyright Semtech, 1997-2001
DOC5-FJ8-DS-107
3
Fn
4
LAlt*
5
Space
Columns (C0–C13)
6
7
8
` (BkQt) Insert
1
Esc
E
6
9
Delete
10
ArrLft
11
ArrDn
12
LShift
13
ArrRt
ArrUp
RShift
End
/
Pad /
, (com)
, (appos) Enter
PgDn
K
Pad 2
I
Pad 5
F10
L
Pad 3
O
Pad 6
NumLk
PgUp
F8
. (per)
Pad .
M
Pad 0
J
Pad 1
U
Pad 4
F9
8
Pad 8
G
9
Pad 9
H
0
Pad *
[
- (dash) =
Pause
]
Home
;
Pad +
P
Pad ScrLk
\
www.semtech.com
BkSpc
PrtScr
KEYBOARD LAYOUTS (US ENGLISH)
Depending on the status of the Num Lock and the FN Key, the UR5HCFJ8 implements one of four keyboard
layouts. (Key numbering of a standard 101/102 keyboard is shown.)
Layout A (Default layout)
110
Esc
F1
113
112
2
F1
112
Ctrl
16
Tab
46F2
Z
2
1
58
113
3
17
Q
47F3
114
X
2
FN
18
W
31
30
CpsLck
33
4
360
Alt
48F4
C
49F5
V
5
20
117
B
34
D
36
35
F
37
H
27
40
]
.
/
39
38
K
J
[
125
40
29
80
Home
85
PgUp
86
PgDn
126
81
End
80
15
BkSp
Home
89
84
79
Shift
13
=
PrSc
28
]
Brk
124
ScLk57
76
Del
27
\
83
29
Brk
85
PgUp
86
PgDn
43
Enter
41
,
;
L
\
43
Enter
41
12
-
28
,
;
L
,
M
36
G
[
90
52F8 119 53F9 120 54F10121 55NmLk
118
N
39
38
K
J
51F7
26
P
15
BkSp
=
126
124
PrSc
13
-
25
0
37
H
50F6
24
125
ScLk
12
11
0
9
7
8
10
11
6
7
9
0
8
75
1
61
SPACE
,
Ins
23
21
22
24
25
26
T
Y
I
0
P
U
R
33
116
6
5
19
E
S
35
G
115
4
32
A
34
F
10
I
U
90
NmLk
121
F10
9
8
23
Y
120
F9
9
8
22
T
119
F8
7
21
20
D
118
F7
6
R
S
117
7
5
19
32
A
6
4
E
31
30
CpsLck
44
Shift
18
W
F6
F5
5
3
17
Q
116
F4
4
2
16
Tab
115
F3
3
1
110
Esc
114
F2
Layout B (Num Lock is set)
46
44
Shift
110
Esc58
F1
Ctrl
X
2
17
Q
30
CpsLck
A
44
Shift
Z
58
Ctrl
F4
4
31
19
46
FN
Copyright Semtech, 1997-2001
DOC5-FJ8-DS-107
C
118
49
V
50
SPACE
7
93
98
99
51
N
0
1120
F9
53
61
76 90
NmLk
Del
12
*
105
106
+
,
125
79
ScLk
13
27
/
1
75
Ins
\
29
43
Enter
41
,
95
.
15
BkSp
28
]
124
84
PrSc
=
[
-
104
,
83
Shift
121
75
F10
Ins
100
103
3
2
1
/
102
6
97
5
36
H
B
60
Alt
92
57
55
54
101
9
8
4
35
,
96
91
7
G
.
119
F8
61
F7
Y
34
F
48
47
X
117
22
T
33
D
F6
21
20
R
32
S
116
53
,
M
SPACE
6
7
5
6
4
E
N
F5
5
3
52
51
B
115
F3
18
W
50
V
114
F2
2
49
C
113
60
Alt
3
112
FN
1
16
Tab
48
47
Z
126
89
Brk
80
Home
85
PgUp
86
PgDn
57
83
81
End
79
84
89
Shift
76
Del
81
End
www.semtech.com
KEYBOARD LAYOUTS (US ENGLISH)
Depending on the status of the Num Lock and the FN Key, the LapCoderTM implements one of four keyboard
layouts. (Key numbering of a standard 101/102 keyboard is shown.)
Layout C (FN key pressed)
110
Esc
123
122
F11
2
31
30
CpsLck
A
44
Shift
Z
64
91
Home
96
101
PgUp
100
36
105
50
99
51
N
53
,
Ins
61
SPACE
103
PgDn
+
104
Del
/
[
27
106
]
28
\
29
43
Enter
41
,
95
76
Del
Brk
80
Home
85
PgUp
86
PgDn
2
83
81
End
79
84
89
Shift
75
Ins
1
,
15
BkSp
=
126
124
PrSc
13
12
98
125
ScLk
-
*
102
97
93
End
H
B
62
Alt
FN
Ctrl
F10
92
90
NmLk
121
F9
5
35
V
120
F8
22
G
49
C
119
F7
Y
34
F
48
47
X
21
T
33
D
118
6
20
R
32
117
7
5
19
S
46
6
4
E
F6
F5
5
3
18
W
116
F4
4
2
17
Q
115
F3
3
1
16
Tab
114
F12
Layout D (Num Lock set and FN key pressed)
110
Esc
F1
123
122
2
31
30
CpsLck
A
44
Shift
Z
64
Ctrl
46
FN
D
48
47
X
62
Alt
Copyright Semtech, 1997-2001
DOC5-FJ8-DS-107
34
C
23
35
49
36
H
50
V
B
SPACE
8
37
39
38
K
52
M
26
53
.
61
,
1
40
;
L
,
[
P
27
]
\
29
43
Enter
41
/
75
Ins
28
,
55
54
15
BkSp
=
Brk
80
Home
85
PgUp
86
PgDn
57
83
81
End
79
84
89
Shift
76
Del
126
124
PrSc
13
-
25
0
125
ScLk
12
11
0
24
J
51
N
10
I
U
90
NmLk
121
F10
9
8
22
G
120
F9
9
8
Y
F
119
F8
7
21
T
33
32
118
F7
6
20
R
117
7
5
19
S
6
4
E
F6
F5
5
3
18
W
116
F4
4
2
17
Q
115
F3
3
1
16
Tab
114
F2
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IMPLEMENTATION NOTES FOR THE UR5HCFJ8
The following notes pertain to the suggested schematics found on the next
pages.
The Built-in Oscillator on the UR5HCFJ8 requires the attachment of the 4.00
MHz Ceramic Resonators with built-in Load Capacitors.. You can use either
an AVX, part number PBRC-1.00 BR; or a Murata part number
CSTCC4.00MG ceramic resonator.
It may also be possible to operate with the 4.00 MHz Crystal, albeit with
reduced performance. Due to their high Q, the Crystal oscillator circuits
start-up slowly. Since the LapCoderTM constantly switches the clock on and
off, it is important that the Ceramic Resonator is used (it starts up much
quicker than the Crystal). Resonators are also less expensive than Crystals.
Also, if Crystal is attached, two Load Capacitors (33pF to 47pF) should be
added, a Capacitor between each side of the Crystal and ground.
In both cases, using Ceramic Resonator with built-in Load Capacitors, or
Crystal with external Load Capacitors, a feedback Resistor of 1 Meg should
be connected between OSCin and OSCout.
Troubleshoot the circuit by looking at the Output pin of the Oscillator. If the
voltage it half-way between Supply and Ground (while the Oscillator should
be running) --- the problem is with the Load Caps / Crystal. If the voltage it
all the way at Supply or Ground (while the Oscillator should be running) --there are shorts on the PCB.
NOTE: when the Oscillator is intentionally turned OFF, the voltage on the
Output pin of the Oscillator is High (at the Supply rail).
Copyright Semtech, 1997-2001
DOC5-FJ8-DS-107
9
www.semtech.com
SUGGESTED INTERFACING FOR THE LAPCODERTM UR5HCFJ8
Vcc
Vcc
100K
STATUS LEDs
Vcc
1uF
GND
Vcc
1
44
RST
4.7K 4.7K 2K
5
Vcc
12
NL
CL
2K
EKDAT
11
EKD
EKBCLK
10
EKC
41
EKC1
8042
EMULATION
PORT
Vcc
2
IRQ
KBCLK
9
KC
KBDAT
8
KD
44 Pin PLCC
PC KEYBOARD
PORT
COMMUNICATIONS
38
SL
C15
C14
C13
C12
C11
C10
C9
C8
COLUMN C7
SELECT
C6
OUTPUTS C5
C4
C3
C2
C1
C0
C4A
24
25
26
27
28
29
30
31
21
20
19
17
16
15
14
13
18
R7A
R7
R6
R5
R4
R3
R2
R1
R0
40
39
6
37
36
35
34
33
32
4 x 47 Pf
ROW
DATA
INPUTS
GND
23
NC
LINE INTERFACE
OSCI
OSCO
43
42
Vss
22
RP VXA
7
3
CS15
CS14
CS13
CS12
CS11
CS10
CS9
CS8
CS7
CS6
CS5
CS4
CS3
CS2
CS1
CS0
TO SWITCH MATRIX
RDAT7
RDAT6
RDAT5
RDAT4
RDAT3
RDAT2
RDAT1
RDAT0
VX
4
Vcc
1 MEG
GND
Vcc Vcc
4.00 MHz
22pF
Copyright Semtech, 1997-2001
DOC5-FJ8-DS-107
10
GND
22pF
Vcc
8 x 22K
GND
www.semtech.com
MECHANICALS FOR THE UR5HCFJ8-P
40
21
B
1
L
20
A
C
J
N
M
H
G
F
K
D
Seating
Plane
Notes:
1. Positional tolerance of leads (D) shall be
within 0.25 mm (0.010) at maximum material
condition, in relation to the seating plane and
each other.
2. Diminsion L is to the center of the leads when
the leads are formed parallel.
3. Dimension B does not include mold flash.
DIM
A
B
C
D
F
G
H
J
K
L
M
N
Copyright Semtech, 1997-2001
DOC5-FJ8-DS-107
11
MILLIMETERS
INCHES
MIN MAX
51.69 52.45
13.72 14.22
3.94 5.08
0.36 0.56
1.02 1.52
2.54 BSC
1.65 2.16
0.20 0.38
2.92 3.43
15.24 BSC
00
15 0
0.51 1.02
MIN MAX
2.035 2.065
0.540 0.560
0.155 0.200
0.014 0.022
0.040 0.060
0.100 BSC
0.065 0.085
0.008 0.015
0.015 0.135
0.600 BSC
00
15 0
0.020 0.040
www.semtech.com
MECHANICALS FOR THE UR5HCFJ8-FN
Y BRK
N
D
L
0.18 (0.007) M T N S -P S L S -M S
B
M
44
Leads
PLCC
U
0.18 (0.007)
M
T N S -P S L S -M S
Note 1
W
Z1
D
1
(Note 1) 44
P
V
A
Z
0.18 (0.007)
R
C
0.18 (0.007)
M
M
T L S -M S N S -P S
G1
0.25 (0.010)
M
T N S -P S L S -M S
H
0.18 (0.007) M T L S -M S N S -P S
0.18 (0.007) M T N S -P S L S -M S
F
0.18 (0.007)
0.18 (0.007)
K1
E
+
X
View D-D
T L S -M S N S -P S
+
K
G
44
(Note 1)
J
G1
M
M
T L S -M S N S -P S
T N S -P S L S -M S
Detail S
0.010 (0.004)
Detail S
T
0.25 (0.010)
M
Seating Plane
T L S -M S N S -P S
Notes:
1. Due to space limitation, the chip
is represented by a general (smaller)
case outline drawing rather than
showing all 44 leads.
2. Datums L, M, N, and P determine where
the top of the lead shoulder exits plastic
body at mold parting line
3. DIM G1, true position to be measured
at Datum T, Seating Plane
4. DIM R and U do not include mold
protusion. Allowable mold protusion is
0.25 (0.010) per side.
5. Dimensioning and tolerancing per Ansi
Y14.5M, 1982
6. Controlling dimension: Inch
Copyright Semtech, 1997-2001
DOC5-FJ8-DS-107
12
DIM
A
B
C
E
F
G
H
J
K
R
U
V
W
X
Y
Z
G1
K1
Z1
www.semtech.com
MILLIMETERS
INCHES
MIN MAX
17.40 17.65
17.40 17.65
4.20 4.57
2.29 2.79
0.33 0.48
1.27 BSC
0.66 0.81
0.51 0.64 16.51 16.66
16.51 16.66
1.07 1.21
1.07 1.21
1.07 1.42
- 0.50
20
10 0
15.50 16.00
1.02
20
10 0
MIN MAX
0.685 0.695
0.685 0.695
0.165 0.180
0.090 0.110
0.013 0.019
0.050 BSC
0.026 0.032
0.020 0.025 0.650 0.656
0.650 0.656
0.042 0.048
0.042 0.048
0.042 0.056
- 0.020
20
10 0
0.610 0.630
0.040 2
10 0
MECHANICALS FOR THE UR5HCFJ8-FB
L
23
B
Detail A
44
V
B
H A-B S
B
L
Detail A
12
1
11
Notes
D
A
0.20 (0.008) M C A-B S
0.05 (0.002) A-B
D S
F
S
0.20 (0.008)
M
H A-B S
Base Metal
D S
J
0.20 (0.008)
T
Datum
Plane
N
D
M
M
C A-B S
D S
MILLIMETERS
H
K
W
Detail C
Q
X
M
Detail C
C
Seating
Plane
E
H
Datum
Plane
0.01 (0.004)
G
M
H
Copyright Semtech, 1997-2001
DOC5-FJ8-DS-107
1. Dimensioning and tolerancing per Ansi
Y14.5-M, 1982
2. Controlling dimension: Millimeter
3. Datum Plane "H" is located at the
bottom of the lead and is coincident
with the lead where the lead exits
the plastic body at the bottom of the
parting line.
4. Datums -A-, -B-, and -D- to be determined
at Datum Plane -H-.
5. Dimensions S and V to be determined
at seating plane -C-.
6. Dimensions A and B do not include
Mold protusion. Allowable protusion
is 0.25 (0.010) per side. Dimensions
A and B do include mold mismatch
and are determined at Datum Plane -H-.
7. Dimension D does not include Danbar
protrusion. Allowable Danbar
protrusion is 0.08 (0.003) total in
excess of the D dimension
at Maximum Material Condition.
Danbar cannot be located on the
lower radius or the foot.
Section B-B
R
C
A,B,D
M
A
D S
D S
22
0.20 (0.008)
34
0.20 (0.008) M C A-B S
0.05 (0.002) A-B
33
13
DIM
A
B
C
D
E
F
G
H
J
K
L
M
N
Q
R
S
T
U
V
W
X
MIN MAX
9.90 10.10
9.90 10.10
2.10 2.45
0.30 0.45
2.00 2.10
0.30 0.40
0.80 BSC
- 0.25
0.13 0.23
0.65 0.95
8.00 REF
50
10 0
0.13 0.17
0 0
70
0.13 .30
12.95 13.45
0.13
00
12.95 13.45
0.40 1.6 REF
www.semtech.com
INCHES
MIN MAX
0.390 0.398
0.390 0.398
0.083 0.096
0.012 0.018
0.079 0.083
0.012 0.016
0.031 BSC
- 0.010
0.005 0.009
0.026 0.037
0.315 REF
50
10 0
0.005 0.007
0 0
7 0
0.005 0.012
0.510 0.530
0.005 00
0.510 0.530
0.016 0.063 REF
ELECTRICAL SPECIFICATIONS
Absolute Maximum Ratings
Ratings
Supply Voltage
Input Voltage
Current Drain per Pin
(not including Vss or Vdd)
Operating Temperature
UR5HCFJ8-XX
Storage Temperature Range
Thermal Characteristics
Characteristic
Thermal Resistance
Plastic DIP
Plastic PLCC
Symbol
VDD
VIN
I
Value
-0.3 to +7.0
Vss -0.3 to VDD +0.3
25
Unit
V
V
mA
TA
T low to T high
-40 to +85
-65 to +150
°C
TSTG
Symbol
TJA
Value
OSC1Pulse Width
Unit
°C per W
60
70
DC Electrical Characteristics (VDD=5.0 VDC +/-10%, VSS=0 VDC, Temperature
Characteristic
Symbol
Min
Output Voltage (I load<10µA)
VOL
VOH
VDD–0.1
Output High Voltage (I load=0.8mA)
VOH
VDD–0.8
Output Low Voltage (I load=1.6mA)
VOL
Input High Voltage
VIH
0.7xVDD
Input Low Voltage
VIL
Vss
User Mode Current
IPP
Data Retention Mode (0 to 70°C)
VRM
2.0
Supply Current* (Run)
IDD
I/O Ports Hi-Z Leakage Current
IIL
Input Current
IIN
I/O Port Capacitance
CIO
*In a typical application circuit, including external A/D.
Control Timing (VDD=5.0 VDC +/-10%, VSS=0
Characteristic
Frequency of Operation
Crystal Option
External Clock Option
Crystal Oscillator Startup Time
Crystal (FOSC/2)
External Clock Option
Cycle Time
Crystal Oscillator Startup Time
Stop Recovery Startup Time
Reset Pulse Width
Interrupt Pulse Width Low
Interrupt Pulse Period
°C
range=T low to T high unless otherwise noted)
Typ
Max
Unit
0.1
V
5
4.7
8
0.4
VDD
0.2xVDD
10
7.0
+/-10
+/- 1
12
VDC, Temperature range=T low to T high unless otherwise noted)
Symbol
Min
Max
fOSC
2.0
dc
2.0
fOP
2.0
dc
2.0
tCYC
1000
toxov
100
tiLCH
100
tRL
8
tLIH
125
tiLIL
*
tOH,
TOL
90
V
V
V
V
mA
V
mA
µA
µA
pF
Unit
MHz
MHz
ns
ms
ms
tcyc
ns
tcyc
ns
*The minimum period tiLIL should not be less than the number of cycle times it takes to execute the interrupt service routine plus 21 tcyc.
Copyright Semtech, 1997-2001
DOC5-FJ8-DS-107
14
www.semtech.com
UR5HCFJ8 BILL OF MATERIALS FOR PAGE 10 SCHEMATIC
UR7HCFJ8-XX
Description
Bare PCB
PCB
Capacitors:
C1, C2
C3, C4
C5, C7
C6
C8, C9, C10, C11
ICs:
U1
Connectors:
J1
J2
J5
J6
JP1-JP2
E1, E2
Diode:
D1-D8
LED:
J4
Resistors:
R1, R6, R7
R2, R3, R4
R5
R8, R9
R10, R11
R12
R13-R16
R20
Resistor Net:
RP1, RP2, RP3
RP4
Crystal:
Y1
Shunts:
E1-S, JP1-S, JP2-S
Socket:
U1_S
BOM
Quantity
Manufacturer
1
Part#
Description
PCB5-FJ8-100
PCB for UR5EVB. Thru Hole
2
2
2
1
4
Generic
Generic
Generic
Generic
Generic
Any
Any
Any
Any
Any
.1uF Ceramic disk or Monolythic cap, THD
22pF, Ceramic disk cap, THD
.01uF Ceramic disk cap, THD
10uF, 16V Tantalum Cap, THD
47pF Ceramic disk cap, THD
1
Semtech
UR7HCFJ8
LapCoderTM
1
1
1
1
1
2
Molex
Molex
AMP
AMP
AMP
S.E.
39-51-3144
39-51-3084
640456-5
640456-6
103322-3
PH1-025-2G
14 pos, ZIF Conn, Straight
8 pos ZIF Conn, Straight
5 positions .1”ST/Header
6 positions .1”ST/HeaderJP1, JP2
Header, 2x3 positions, 1”
Male Str Header 1x2 pos
8
Generic
Any
Diode, small signal, THD, DO-35
3
King Bright
L113GDT
Rect LED, cross to SSL-LX2573GD, THD
3
3
1
2
2
1
4
1
Generic
Generic
Generic
Generic
Generic
Generic
Generic
Generic
Any
Any
Any
Any
Any
Any
Any
Any
1M Resistor, Carbon Film, THD
330 Ohm Resistor, Carbon Film
1M Resistor, Carbon Film
4.7K Resistor, Carbon Film, THD
2K Resistor, Carbon Film, THD
100K Resistor, Carbon Film, THD
47 Ohm Resistor, Carbon Film, THD
22K Resistor, Carbon Fil, THD
3
1
CTS
KOA
761-3-332G
RKC82223G
3.3K, 8 Resistor, 16 pins, THD, DIP
22K, 8 Resistor, 9 pins, THD, SIP
1
ECS
EC2-040-4.00
4.00MHz Low Profile Crystal, THD
3
Solid Electronics
MJ-254M
Standard Gold 2 Position Jumper
1
McKenzie
PLCC44P-T
44PLCC THD Socket
Notes: J3 not installed. Install shunts as follow: JP1, JP2 between pins 2 & 3; also installs in E1
Updated 2000/08/01
Copyright Semtech, 1997-2001
DOC5-FJ8-DS-107
15
www.semtech.com
For sales information
and product literature,
contact:
HID & System Mgmt Division
Semtech Corporation
568 Broadway
New York, NY 10012
[email protected]
http://www.semtech.com
212 226 2042 Telephone
212 226 3215 Telefax
Semtech Western Regional Sales
805-498-2111 Telephone
805-498-3804 Telefax
Semtech Central Regional Sales
972-437-0380 Telephone
972-437-0381 Telefax
Semtech Eastern Regional Sales
203-964-1766 Telephone
203-964-1755 Telefax
Semtech Asia-Pacific Sales Office
+886-2-2748-3380 Telephone
+886-2-2748-3390 Telefax
Semtech Japan Sales Office
+81-45-948-5925 Telephone
+81-45-948-5930 Telefax
Semtech Korea Sales Sales
+82-2-527-4377 Telephone
+82-2-527-4376 Telefax
Northern European Sales Office
+44 (0)2380-769008 Telephone
+44 (0)2380-768612 Telefax
Southern European Sales Office
+33 (0)1 69-28-22-00 Telephone
+33 (0)1 69-28-12-98 Telefax
Central European Sales Office
+49 (0)8161 140 123 Telephone
+49 (0)8161 140 124 Telefax
Copyright 1997-2001 Semtech Corporation. All rights reserved.
KeyCoder, LapCoder, Zero-Power and Self-Power Management are
trademarks of Semtech Corporation. Semtech is a registered
trademark of Semtech Company. All other trademarks belong to
their respective companies.
INTELLECTUAL PROPERTY DISCLAIMER
This specification is provided "as is" with no warranties whatsoever
including any warranty of merchantability, fitness for any particular
purpose, or any warranty otherwise arising out of any proposal,
specification or sample. A license is hereby granted to reproduce
and distribute this specification for internal use only. No other
license, expressed or implied to any other intellectual property
rights is granted or intended hereby. Authors of this specification
disclaim any liability, including liability for infringement of proprietary
rights, relating to the implementation of information in this
specification. Authors of this specification also do not warrant or
represent that such implementation(s) will not infringe such rights.
Copyright Semtech, 1997-2001
DOC5-FJ8-DS-107
16
www.semtech.com