UR5HCFJL-06-P_技术文档

TM

GreenCoder UR5HCFJL

Extremely Low-Power Keyboard

Encoder for Portable Systems

TM

HID & SYSTEM MANAGEMENT PRODUCTS, KEYCODER FAMILY

DESCRIPTION

FEATURES

TM

The GreenCoder UR5HCFJL is

a unique, extremely low-power

keyboard encoder that provides an

optimum performance level for both

battery-operated and desktop

systems.

• Optimized power-saving operation

with idle consumption of less

than 2 µA

• Programmable LED dimming for

further power savings

• Ready to interface to Fujitsu's

7316, 7654,7656, and

1406 keyboards

• Wakes-up only to respond to an

external event and for a minimum

period of time (2 mA current

consumption)

• Provides interface for external

keyboard/keypad or other 8042-

compatible device

TM

The GreenCoder scans,

• Energy Star Compliant

debounces and encodes an 8 X 16

keyboard matrix, and provides

direct drive for 3 LEDs and two

bi-directional channels for

communication with a BIOS-

compatible system as well as an

additional keyboard-compatible

device. It fully supports all three

PS/2 scan code sets and can

implement up to three alternate

keyboard layers for full 101/102

functionality.

• 3, 3.3, and 5 Volt operation

APPLICATIONS

• Laptops / notebooks

• Portable equipment

• Medical instruments

• Palmtops / PDAs

PIN ASSIGNMENTS

TM

The GreenCoder employs a

unique Self-Power Management

TM

SL

R6

OPT

KD

R5

R4

R3

R2

R1

R0

C8

C9

C10

C11

method that reduces the power

consumption of the keyboard

sub-system to an unprecedented

minimum, transparently and without

user intervention. In “Active” mode,

the encoder consumes less than 2

mA (Typ @5V). In “Sleep” mode the

encoder consumes less than 2 µA

(Typ @5V) The encoder can even

nap between keystrokes and

therefore it is rarely active and

rarely consumes significant levels of

power.

_RESET

DRV

VX

40

39

38

37

36

35

34

33

32

31

30

29

28

27

26

25

24

23

22

21

VCC

OSCI

OSCO

EKC1

R7

1

KC

2

EKC

EKD

CL

C0

C1

3

QFP

NL

4

R6

5

C2

C3

OPT

KD

SL

6

R5

7

KC

R4

8

EKC

EKD

CL

R3

9

R2

10

11

12

13

14

15

16

17

18

19

20

DIP

R1

6

40

39

C0

R0

1

PLCC

23

R7

7

OPT

KD

KC

EKC

EKD

SL

R5

R4

R3

C1

C8

C2

C9

C3

C10

C11

C12

C13

C14

C15

34 R2

R1

CL 12

C0

C4

C5

R0

C8

C9

C10

C1

C2

C3

C4

C6

A "stand-by" mode (600 µA Typ

@5V) is entered for as long as

a periodic task is active. After a

programmed period of user

C7

29

28

17

GND

18

TM

inactivity the GreenCoder

gradually dims the LEDs for

further power savings.

TM

The GreenCoder is ideal for use in

battery laptop/notebook designs

and Energy Star compliant

keyboards.

GreenCoder is a trademark of Semtech

Corporation. All other trademarks belong to their

respective companies.

DOC5-FJL-DS-107

www.semtech.com

1

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

TA = -40°C to +85°C

UR5HCFJL-XX-P

UR5HCFJL-XX-FN

UR5HCFJL-XX-FB

0.8 mm

XX = 16 for FKB7136,06 for FKB1406 matrix compatibility

FUNCTIONAL DIAGRAM

NL/CL/SL

3

Data Buffer

Status LEDs

R0-R7

Row Data Inputs

EKC1

Interrupt Control

8

Column Select

Ouputs

C0-C15

16

Keyboard Encoder

KC

KD

PC

Communication

Channel

16-Bit Timer

Mode Control

8042 Emulation

(External Keyboard)

Communication

Channel

EKC

EKD

DRV

DOC5-FJL-DS-107

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2

FUNCTIONAL DESCRIPTION

PIN DEFINITIONS

TM

The GreenCoder consists

Mnemonic DIP PLCC

QFP Type Name and Function

functionally of seven major sections

(see Functional Diagram, previous

page). These are the Keyboard

Encoder, a 16-Bit Timer, the Mode

Control Unit, the Data Buffer, the

Interrupt Control, the PC Commun-

ication Channel and the 8042

Emulation Channel. All sections

communicate with each other and

operate concurrently.

VCC

VSS

OSCI

OSCO

_RESET

EKC1

40

20

39

38

1

44

22

43

42

1

38

17

37

36

41

35

I

O

I

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 interrupt for every clock line

transmission

37

41

I

VX

OPT

KC

3

6

8

4

7

9

43

2

4

I

Tie to Vcc

Used for options selection

Keyboard Clock: connects to PC

keyboard port data line

Keyboard Data: connects to

PC port data line

External Keyboard Data: connect to

external keyboard clock line

External Keyboard Clock 1: connects

to external keyboard data line

Wake-up line: used for sleep mode

Row Data Inputs

I/O

KEYBOARD ENCODER

KD

7

10

9

8

11

10

2

3

6

5

I/O

The encoder scans a keyboard

organized as an 8 row by 16 column

matrix for a maximum of 128 keys.

Smaller-size keyboards are support-

ed provided that all unused row

lines are pulled to Vcc. When

EKD

EXC

DRV

R0-R5

R6

2

42

27-32

1

I

29-34 32-37

active, the encoder selects 1 of the

16 column lines (C0-C15) every 512

µs and then reads the row data lines

(R0-R7). 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 keyboard

5

36

6

39

R7

34

I

C0-C4

C5-C7

C8-C15

CL

NL

SL

12-16 13-17

17-19 19-21

28-21 31-24

8-12

13-15

26-18

7

44

33

39-40

16,22

I/O

O

Column Select Outputs: select 1 of 16

columns

11

4

35

12

5

38

Caps Lock LED

Num Lock LED

Scroll Lock LED

No Connects: these pins are unused

NC

3,18

23,40

Note: An underscore before a pin mnemonic denotes an active low signal.

communication channel.

Scan Code Table Sets

TM

The GreenCoder supports all three

scan code table sets. 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 tech-

nical reference manuals.

DOC5-FJL-DS-107

www.semtech.com

3

KEYBOARD ENCODER (CONT’D)

MODE CONTROL

Embedded Numeric Keypad

N-Key Rollover

TM

The GreenCoder implements an

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.

embedded numeric keypad. The

Numeric Keypad Function is

invoked by pressing the Num Lock

Key.

If a key is defined to be Typematic, the corresponding make code(s) are

transmitted while the key is held pressed. When a 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 in the number of keys that can

be held pressed at the same time. However, two or more key closures,

occurring within a time interval less than 5 ms, will set an error flag and will

not be processed. This procedure protects against the effects of accidental

key presses.

Function (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

“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 eliminated without using external hardware,

there are methods to neutralize its negative effects for most practical

applications. Keys that are intended to

• Control Left Key becomes Ctrl

Right

• 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.)

Actual key presses

be used in combinations or are likely to

be pressed at the same 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 column) with any other

“Ghost”

Status LED indicators

Key

The controller provides an interface

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) and are set by the

system. After approximately a one-

minute period of keyboard inactivity,

LEDs are dimmed to conserve

power. They are set to full

TM

keys. The GreenCoder has built-in

mechanisms to detect the presence of a

“ghost” key, thus eliminating the

necessity of external hardware.

Figure 1: “Ghost” or “Phantom” Key

Problem

brightness again upon a new

keystroke.

DOC5-FJL-DS-107

www.semtech.com

4

8042 EMULATION CHANNEL

SPECIAL HANDLING

TM

Connection of External Device

The GreenCoder fully emulates a

system’s keyboard port, available to

a standard 84/85/101/102 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,

TM

The GreenCoder detects the presence of an external device. If an

external keyboard or other device was not connected during power-on and

TM

is connected at a later time, the GreenCoder proceeds with the normal

reset routine in order to properly initialize the external device. After

TM

communication has been established, the GreenCoder continues to check

for the presence of the external device. While the external device is

TM

connected, the GreenCoder does not enter the sleep mode. If the device

respectively. A third pin, EKC1 that

connects to the clock Line,

TM

is disconnected at a later time, the GreenCoder becomes aware of it. If a

TM

subsequent connection takes place, the GreenCoder re-initiates a reset

interrupts the GreenCoder

sequence. This unique feature allows the user to connect or disconnect an

external device at any time without having to reset the system.

whenever the external device

initiates a communication session.

Shift Status LEDs

When power is first applied, the

controller proceeds with the

standard reset sequence with the

external device. Data and

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 aree executed both

by the external keyboard and the scanned matrix.

commands initiated from the

external device are buffered in the

TM

GreenCoder ’s FIFO along with

For example, if the user presses the Caps Lock Key on either keyboard, the

Caps Lock LED is affected on both keyboards. The LED status indicators

are properly set after each new connection of an external keyboard.

data from the scanned matrix, and

then are presented to the system as

if they were coming from a single

source. Once they are

acknowledged, commands and

data from the system are then

transmitted to the external device.

DOC5-FJL-DS-107

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5

PC COMMUNICATION

TM

The GreenCoder implements all

The following table shows the

commands that the keyboard may

send to the system.

the standard functions of

communication with a BIOS-

compatible PC/XT or AT / PS/2 host

system. Two lines, KC and KD,

provide bi-directional clock and

data signals. In addition, the

Command

Hex Value

Key Detection

Error/Overrun

00*

TM

GreenCoder supports all

Keyboard ID

83AB

AA

FC

commands from and to the system,

as described in the IBM technical

reference manuals.

BAT Completion Code

BAT Failure Code

Echo

EE

The following table shows the

commands that the system may

send and their values in hex.

Acknowledge (Ack)

Resend

FA

FE

Command

Hex Value

Key Detection

Error/Overrun

Set/Reset Status

Indicators

ED

FF**

*Code Sets 2 and 3

**Code Set 1

Echo

EE

EF

F0

Invalid Command

Table 3: Keyboard Commands to the

System (AT/PS/2 protocol)

Select Alternate

Scan Codes

When an external keyboard is

connected, commands from the

system will also be directed to the

external keyboard. Presence or

absence of an external device will

not effect the normal operation of

Invalid Command

Read ID

F1

F2

F3

Set Typematic

Rate/Delay

TM

the GreenCoder .

Enable

F4

F5

F6

Default Disable

Set Default

Set All Keys

Typematic

Make/Break

Make

F7

F8

F9

FA

Typematic/Make/Break

Set Key Type

Typematic

Make/Break

Make

FB

FC

FD

Resend

Reset

FE

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.

DOC5-FJL-DS-107

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6

TM

STATES OF OPERATION

USING THE GREENCODER FOR SYSTEM MANAGEMENT TASKS

TM

The GreenCoder has three states

The GreenCoder provides an ideal complement to low-power chip sets

TM

of operation, implemented to

minimize the power consumption of

the keyboard subsystem. The

following diagram illustrates the

three states of operation of the

targeted to the portable and mobile computing market. The GreenCoder

can be used to handle several system management tasks for small, portable

system designs, thus saving space and additional components for the

system designer. Such system management tasks include those listed

below.

TM

GreenCoder .

However, since most of the system management tasks are application and

hardware-dependent, detailed implementation information is outside the

scope of this document. For application examples and sample schematics,

contact Semtech Technical Support.

STAND BY

STATE

SLEEP

STATE

System shut-down/wake-up signal

ACTIVE

STATE

TM

The GreenCoder can provide the system power management unit with a

shut-down/wake-up signal which can be invoked either by a special

keyboard combination or after a programmed period of user inactivity.

Figure 2: States of Operation of

UR5HCFJL

TM

Note: Self-Power Management is a feature protected under Semtech Corporation patent and copyright

Most of the time, the GreenCoder

TM

rights. Purchase of any version of the GreenCoder encoder conveys a license to utilize the Self-Power

Management feature only through use of the GreenCoder in a PS/2-compatible keyboard subsystem.

is in the Sleep State. Power

consumption in this state is

approximately 2 µA at 5 Volts of

TM

operation. The GreenCoder enters

the Active State only when there is

an event to process, such as a

keystroke, a command from the

system, or data from the external

PS/2-compatible device.

TM

The GreenCoder enters and stays

in the Stand-By State if an external

device is connected to the auxiliary

port or if one or more LEDs are

turned on.

In the Stand-By State, the

TM

GreenCoder consumes

approximately 600 µA at 5 Volts.

Transition from one state to the other

does not require any input from the

system.

DOC5-FJL-DS-107

www.semtech.com

7

KEY MAP FOR FKB7211 (UR5HCFJL-11)

Columns (C0–C13)

0

1

2

3

4

5

6

7

8

9

10

11

12

13

LCtrl*

Esc

Tab

Fn

LAlt*

Space

` (BkQt) Insert

Delete

ArrLft

ArrDn

LShift

ArrRt

F1*

1

Z

X

V

S

4

C

B

. (per)

Pad .

M

Pad 0

J

Pad 1

U

/

ArrUp

RShift

End

Pad /

CapLk

N

F

, (com) , (appos) Enter

PgDn

PgUp

BkSpc

PrtScr

Pause

Home

F2

2

A

D

T

K

Pad 2

I

Pad 5

F10

L

;

Pad 3

O

Pad 6

Pad +

P

Pad -

3

Y

Pad 4

F9

F4

F3

Q

F5

F6

6

F7

F8

NumLk ScrLk

%

5

W

7

8

9

0

- (dash)

]

=

\

Pad 7

R

Pad 8

G

Pad 9

H

Pad *

[

E

DOC5-FJL-DS-107

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8

KEYBOARD LAYOUTS (US ENGLISH)

TM

Depending on the status of the Num Lock and the FN Key, the GreenCoder implements one of four keyboard

layouts.(Key numbering of a standard 101/102 keyboard is shown.)

Layout A (Default layout)

126

110

Esc

113

114

115

116

118

119

120

121

F10

90

NmLk

125

ScLk

124

PrSc

117

112

F6

F1

F2

F3

F4

F5

F7

F8

F9

Brk

13

80

2

3

4

5

6

7

8

9

10

11

12

15

1

2

3

4

5

6

7

8

9

0

-

BkSp

Home

=

21

22

23

85

16

17

18

19

20

24

25

28

29

26

27

[

]

\

Tab

Q

W

E

R

T

Y

I

0

P

PgUp

U

33

48

34

49

35

50

36

51

37

52

38

53

39

54

86

30

CpsLck

31

46

32

47

60

40

55

41

43

Enter

,

K

A

Z

S

X

D

C

F

V

G

H

J

L

;

/

PgDn

57

81

83

44

Shift

,

B

N

M

.

1

Shift

End

89

75

Ins

84

76

79

58

61

FN

SPACE

,

Ctrl

Alt

Del

Layout B (Num Lock is set)

126

110

Esc

113

114

115

116

118

119

120

121

90

NmLk

125

ScLk

124

117

112

F6

F1

F2

F3

F4

F5

F7

F8

F9

F10

PrSc

Brk

13

80

2

3

4

5

6

7

91

96

101

100

12

15

8

7

9

1

2

3

4

5

6

-

BkSp

Home

=

*

21

22

92

85

16

17

18

19

20

97

102

28

29

105

27

[

]

\

Tab

Q

W

E

R

T

Y

5

PgUp

4

6

-

33

48

34

49

35

36

51

93

99

98

53

103

3

86

30

CpsLck

31

46

32

47

60

106

+

41

43

Enter

,

2

A

Z

S

X

D

C

F

V

G

H

1

0

PgDn

50

95

57

81

104

.

83

44

Shift

,

B

N

/

Shift

End

89

1

75

Ins

84

76

79

58

61

FN

SPACE

,

Ctrl

Alt

Del

DOC5-FJL-DS-107

www.semtech.com

9

KEY MAP FOR FUJITSU FKB7316-001 (UR5HCFJL-16)

Columns C0-C15

0

1

2

3

4

B

5

6

7

8

N

9

10

/

11

12

RAlt

13

ArrDn

14

15

Space

ArrRt ArrLft

0

1

2

3

4

5

6

7

Esc F4

Tab F3

F5

BkSpc

G

T

F6

RSB

H

Y

RQ

LBS

LAlt

ArrUp

CapLk

F1

LShift

F7

PgUp LQ F2

F9

K5

F

=

FN

K6

J

Dash

SCol

F8

Del

Ins

Home

LCtrl A

Z

D

\

S

K

L

C

Enter

F10

V

X

Comma

M

K7

U

RShift

Period

PK

O

NumLk

F11

Pause

End

PgDn K1 K3

K4

R

K2

W

K8

I

K0

P

PrtScr

ScrLk

F12

Q

E

KEYBOARD LAYOUT FOR FUJITSU FKB7316-001 (URHCFJL-16)

F00

F01

F1

F02

F2

F03

F3

F04

F4

F05

F5

F06

F6

F07

F7

F08

F8

F09

F9

F10

F11

F12

F13

Num

Lock

F14

Pause

Sys Rq

F15

Scroll

Lock

F16

Pause

Break

Esc

F10

F11

F12

E01

E02

E03

E04

E05

E06

E07

E08

E09

E10

E11

E12

E13

E14

!

@

2

#

3

$

4

%

^

6

&

*

(

)

@

2

@

2

Home

1

5

7

8

9

0

BS

*

D14

D00

D01

D02

D03

D04

D05

D06

D07

D08

D09

D10

D11

D12

D13

{

[

}

]

:

/

Tab

PgUp

-

Q

W

E

R

T

Y

U

4

I

5

O

6

P

C14

C00

C01

C02

C03

C04

C05

C06

C07

C08

C09

C10

C11

C13

:

;

"

?

Caps

Lock

PgDn

3

+

Enter

A

S

D

F

G

H

J

1

K

2

L

B14

B00

B01

B02

B03

B04

B05

B06

B07

B08

B09

B10

B12

B13

A13

<

,

>

.

?

0

Shift

End

.

Shift

Z

X

C

V

B

N

M

0

/

A14

A12

A09

A10

A11

A00

A01

A02

A03

A06

~

Space

Alt

Ins

Del

FN

Ctrl

Alt

DOC5-FJL-DS-107

www.semtech.com

10

KEY MAP FOR FUJITSU FKB1406 (UR5HFJL-06)

Columns (C0–C13)

0

1

2

3

4

5

6

7

8

9

10

11

12

13

0

1

2

3

4

5

6

7

LAlt*

` (BkQt)

LCtrl*

FN

Esc

Del

Q

1

F1

2

F2

T

9/Pad 9 0/ Pad * - (dash)

=

Bk

Enter

BkSpc

PgDn

F9

Y

F10

NmLk

\

LShift

U/Pad 4 I/Pad5

RShift

TAB

Z

W

E

R

O/Pad 6 P/Pad -

Ins

[

]

Pause

ScrLk

CapLk

S

K/Pad 2 L/Pad 3 ;/Pad + , (appos)

PrtScr SysReq

J/Pad 1 //Pad /

PgUp

A

D

V

F

G

N

H

Home

Space

X

C

B

M/Pad 0 , (com) . (per)

3

F3

4

F4

5

F5

6

7/Pad 7 8/Pad 8

F6

F7

F8

Prog

End

* In FN Case:

LCtrl = RCtrl

LAlt = RAlt

Refer to Page 4 for a description of FN key specifics.

KEY LAYOUT FOR FUJITSU FKB1406 (UR5HFJL-06)

_

7

8

9

!

@

#

$

%

^

&

(

)

+

Esc

*

Num

Lk

-

1

F2

2

F2

3

F3

4

F4

5

F5

6

F6

7

F7

8

F8

9

F9

0

F10

=

Bk

Prog

_

{

Pause

}

Q W E

A S

R

T

Y U⁴I ⁵O ⁶

P

Scr

Lk

Ins

]

[

+

Prt

Cap

Lock

:

;

Del

Fn

"

'

K ²L ³

1

Sys

Req

Enter

D F

G H J

Scr

.

/

>

.

?

/

<

Shift

Alt

Shift

0

Z

X C V B N M

,

:

;

~

`

Ctrl

Home PgUp PgDn

End

DOC5-FJL-DS-107

www.semtech.com

11

TM

KEY MAP FOR THE GREENCODER UR5HCFJL-7654

Rows (R0-R7)

0

1

2

3

4

5

6

7

FN

0

1

2

3

4

5

6

7

8

9

LWin

A

Tab

CapsLk

1

S

Z

RAlt

D

Q

Esc

LAlt

X

F1

F2

9/N9

3

F3

I/N5

4

E

,

W

K/N2

R

2

U/N4

5

8/N8

F6

Space

C

M/N0

F4

F

F9

F5

6

V

B

G

T

F7

F10

F12

F11

0/N*

F8

N

H

Y

7/N7

L/N3

J/N1

O/N6

./N.

NumLk/

FScrlLk

10

11

Pause

=

]

\

[

`

BkSp DnArr/ UpArr/

FPgDn FPgUp

‘

WinApp Enter

Ins/

FPrtScr

12

13

RWin

RArr/

LArr/

Del/

/

N/

;/N+

P/N-

-

FEnd FHome FSysReq

14

15

LCtrl

RCtrl

LShft

RShft

Note 1: The letter N in italics, followed by a number or symbol, indicates that key in

Num Case.

Note 2: The letter F in italics, followed by a key function, indicates that key in Function

Case.

DOC5-FJL-DS-107

www.semtech.com

12

KEYBOARD LAYOUT FOR THE FUJITSU FKB7654

SL

NL

Pau

Brk

Ins

Prt

Del

Srq

Esc

F1

F2

F3

F4

F5

F6

F7

F8

F9

8

F10

F11

F12

_

7

9

~

`

!

1

@

2

#

3

$

4

%

5

^

6

&

7

*

8

(

)

0

+

=

bk

sp

-

9

4

5

6

{

[

}

]

Q

W

E

R

T

Y

U

I

O

P

enter

tab

+

1

2

3

:

;

|

\

cap

lock

A

S

D

F

G

H

J

K

L

"

'

.

0

/

<

>

?

/

Z

X

C

V

B

N

M

shift

ctrl

shift

,

.

fn

alt

sZpace

alt

ctrl

pgup

DOC5-FJL-DS-107

www.semtech.com

13

IMPLEMENTATION NOTES FOR THE UR5HCFJL

The following notes pertain to the suggested schematics found on the next

pages.

TM

The built-in oscillator on the GreenCoder requires the attachment of a 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 CSTCC2.00MG

ceramic resonator.

It may also be possible to operate with the 2.00 MHz crystal, albeit with

reduced performance. Due to their high Q, the crystal oscillator circuits

TM

start-up slowly. Since the GreenCoder 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 MegaOhm

should be connected between OSCI and OSCO.

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).

DOC5-FJL-DS-107

www.semtech.com

14

TM

SUGGESTED INTERFACING FOR THE GREENCODER UR5HCFJL-FB

10

9

8

7

6

5

4

3

2

33

SL

2

OPT

7

CL

44

17

36

VSS

NL

38

OSCO

OSCI

VCC

1

VSS

37

3

2

1

DOC5-FJL-DS-107

www.semtech.com

15

MECHANICALS FOR THE UR5HCFJL-P

40

21

20

B

L

1

A

C

J

N

M

K

F

D

G

H

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.

MILLIMETERS

INCHES

DIM MIN MAX MIN MAX

A

B

C

D

F

51.69 52.45

14.22

13.72

2.065

0.560

2.035

0.540

5.08 0.155 0.200

0.56 0.014 0.022

1.52 0.040 0.060

3.94

0.36

1.02

G

H

J

K

L

2.54 BSC

0.100 BSC

2.16

0.085

0.015

0.135

1.65

0.065

0.20 0.38 0.008

2.92 0.015

3.43

15.24 BSC 0.600 BSC

0 ⁰

0.51 1.02 0.020 0.040

15 ⁰0 ⁰

15⁰

M

N

DOC5-FJL-DS-107

www.semtech.com

16

MECHANICALS FOR THE UR5HCFJL-FN

Y BRK

N

D

M

0.18 (0.007)

T

N S

P

S

L

S

T

M S

-

B

M

L

44

M

0.18 (0.007)

S S

N S P L M S

-

U

Leads

PLCC

Note 1

W

Z1

D

(Note 1) 44

1

P

V

X

G1

M

0.18 (0.007)

T

L

S

M S N S

P

S

-

A

R

View D-D

M

0.25 (0.010)

S S

T N S P L M S

-

Z

S

M S N S P

-

M

0.18 (0.007)

T

S S

L M S N S P

-

H

N S

S S

P L M S

C

K1

E

+

K

G

M

0.18 (0.007)

T

-

S S

L M S N S P

-

F

N S

S S

P L M S

-

44

(Note 1)

J

Detail S

0.010 (0.004)

Seating Plane

G1

Detail S

T

M

0.25 (0.010)

T

L

S

M S N S

-

P

-

S

MILLIMETERS

INCHES

DIM MIN MAX MIN MAX

A

B

C

E

F

17.40 17.65

0.695

0.685

17.40 17.65 0.685 0.695

4.20 4.57 0.165 0.180

2.29 2.79 0.090 0.110

0.33 0.48 0.013 0.019

G

H

J

1.27 BSC

0.66 0.81 0.026 0.032

0.050 BSC

Notes:

1. Due to space limitation, the chip

is represented by a general (smaller)

case outline drawing rather than

showing all 44 leads.

0.51

0.64

-

0.020 -

0.025 -

K

R

U

V

W

X

Y

Z

16.51 16.66 0.650 0.656

1.07 1.21 0.042 0.048

1.07 1.42 0.042 0.056

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

-

0.50

-

0.020

2 ⁰

10 ⁰

2

10

0

G1 15.50 16.00 0.610 0.630

K1 1.02

-

0.040 -

Z1 2 ⁰

10 ⁰

2

10 ⁰

6. Controlling dimension: Inch

DOC5-FJL-DS-107

www.semtech.com

17

MECHANICALS FOR THE UR5HCFJL-FB

L

33

23

B

A,B,D

34

22

A

B

V

L

Detail A

44

12

1

11

Notes

D

1. Dimensioning and tolerancing per Ansi

Y14.5-M, 1982

A

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.

M

0.20 (0.008)

C

A-B

S

D

S

0.05 (0.002) A-B

F

S

Base Metal

4. Datums -A-, -B-, and -D- to be determined

at Datum Plane -H-.

M

0.20 (0.008)

H

S

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

J

N

at Maximum Material Condition.

Danbar cannot be located on the

lower radius or the foot.

D

M

0.20 (0.008)

C

A-B

S

D

S

T

Section B-B

MILLIMETERS

INCHES

Datum

Plane

R

DIM MIN MAX MIN MAX

A

B

C

D

E

9.90 10.10

2.10 2.45 0.083 0.096

0.30 0.45 0.012 0.018

2.00 2.10 0.079 0.083

0.30 0.40 0.012 0.016

0.398

0.390

H

K

W

Detail C

Q

F

X

G

H

J

0.80 BSC

0.031 BSC

M

0.25

0.010

-

0.13 0.23 0.005 0.009

K

L

0.65

0.026

Detail C

0.95

0.037

0.315 REF

10 ⁰5 ⁰10⁰

0.13 0.17 0.005 0.007

8.00 REF

0

M

N

Q

R

S

T

U

V

5

0

E

Datum

Plane

0

7

0

7

C

H

0.13 .30 0.005 0.012

12.95 13.45 0.510 0.530

0.01 (0.004)

C

Seating

Plane

0.13

-

0.005

-

0

0 ⁰

0

-

G

0.530

12.95 13.45 0.510

M

H

W

X

0.40

1.6 REF

0.016

0.063 REF

-

DOC5-FJL-DS-107

www.semtech.com

18

ELECTRICAL SPECIFICATIONS

Absolute Maximum Ratings

Ratings

Supply Voltage

Symbol

Value

Unit

V

Vdd

Vin

I

-0.3 to +7.0

Vss -0.3 to Vdd +0.3

25

Input Voltage

Current Drain per Pin

(not including Vss or Vdd)

Operating Temperature

UR5HCFJL-XX

mA

TA

T low to T high

-40 to +85

-65 to +150

°C

Storage Temperature Range

Tstg

Thermal Characteristics

Characteristic

Thermal Resistance

Plastic DIP

Symbol

Tja

Value

Unit

°C per W

60

70

Plastic PLCC

DC Electrical Characteristics (Vdd=5.0 Vdc +/-10%, Vss=0 Vdc, Temperature range=T low to T high unless otherwise noted)

Characteristic

Output Voltage (I load<10µA)

Symbol

Vol

Min

Typ

Max

0.1

Unit

V

Voh

Vol

Vih

Vil

Ipp

Vrm

Idd

Vdd–0.1

Vdd–0.8

Output High Voltage (I load=0.8mA)

Output Low Voltage (I load=1.6mA)

Input High Voltage

Input Low Voltage

User Mode Current

Data Retention Mode (0 to 70°C)

Supply Current*

V

mA

V

0.4

Vdd

0.2xVdd

3.5

0.7xVdd

Vss

5

2.0

Run

Wait

Start

2.5

0.8

2.0

3.5

1.5

50

mA

µA

I/O Ports Hi-Z Leakage Current

Input Current

I/O Port Capacitance

Iil

Iin

Cio

+/-10

+/- 1

12

µA

pF

8

*In a typical application circuit, including external A/D.

Control Timing (Vdd=5.0 Vdc +/-10%, Vss=0 Vdc, Temperature range=T low to T high unless otherwise noted)

Characteristic

Symbol

Min

Max

Unit

Frequency of Operation

fosc

MHz

Crystal Option

2.0

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

dc

fop

MHz

2.0

dc

1000

tcyc

toxov

tiLCH

tRL

ns

100

ms

tcyc

ns

tcyc

ns

8

Interrupt Pulse Width Low

Interrupt Pulse Period

OSC1Pulse Width

tLIH

tiLIL

125

*

90

t

OH

,

TOL

*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.

DOC5-FJL-DS-107

www.semtech.com

19

For sales information

and product literature,

contact:

HID & System Mgmt Division

Semtech Corporation

652 Mitchell Road

Newbury Park, CA 91320

hidinfo@semtech.com

http://www.semtech.com/

805 498 2111 Telephone

805 498 3804 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

GreenCoder, KeyCoder and Self-Power Management are

trademarks of Semtech Corporation. Semtech is a registered

trademark of Semtech Corporation. 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.

DOC5-FJL-DS-107

20

www.semtech.com


型号：	UR5HCFJL-06-P
厂家：	ETC
描述：	ENCODER\|DIP\|40PIN\|PLASTIC 外围集成电路光电二极管编码器
文件：	总20页 (文件大小：229K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

UR5HCFJL-06-P [ETC]

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