UR5HCFJ8-06-FN_技术文档

LapCoder™ UR5HCFJ8

Low-Power Keyboard Encoder

for Portable Systems

HID & SYSTEM MANAGEMENT PRODUCTS, KEYCODER® FAMILY

PRELIMINARY

DESCRIPTION

FEATURES

The LapCoder™ UR5HCFJ8 is a

low-power keyboard encoder for

portable systems. It provides two

bi-directional channels for

communication with a BIOS-

compatible system as well as any

optional keyboard-compatible

device, such as a 101/102/104

desktop keyboard.

• Interfaces the Fujitsu FKB7211,

7316, 1406, or similar laptop /

notebook keyboard to a BIOS-

compatible system

• AT / PS/2-compatible

• Scans, encodes, and debounces

an 8 x 16 keyboard matrix

• Provides a hot-pluggable external

PS/2 port for a keyboard

• Can implement all functions of a

101/102/104 keyboard with only

82 keys

• Available in PLCC and Quad Flat

(QFP) packages

The LapCoder™ fully supports the

IBM standard keyboard protocol;

each key press generates one of

the scan codes designated in the

IBM technical reference manuals.

The LapCoder™ scans,

APPLICATIONS

• Laptop/notebook computers

• Portable equipment

• Industrial keyboards

• Point of sale (POS) terminals

• Public information kiosks

debounces, and encodes keys in

an 8 x16 matrix and supports

embedded numeric keypad

PIN DESCRIPTIONS

functions as well as alternate scan

codes for specific keys, so that a

keyboard with only 82 keys can

emulate the functionality of a

101/102/104 keyboard.

6

40

39

1

SCRLLK

R5

R4

R3

R2

R1

R0

C8

C9

C10

C11

R6

RP

KD

R7

SCRLLK

R5

R4

R3

7

RP

KD

KC

EKC

EKD

KC

EKC

EKD

CAPSLK

C0

34 R2

R1

CAPSLK 12

PLCC

23

QFP

The LapCoder™ provides a fully

functional PS/2 port that can be

used by a standard

82/101/102/104 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

C0

C1

C2

C3

R0

C8

C9

C10

C1

C2

C3

C4

29

28

17

18

multiplexed and presented to the

system as if it were coming from a

single source.

The features of the LapCoder™

make it ideal for use in

PC / AT / PS/2 laptop/notebook

designs that utilize the Fujitsu

FKB7211, 7316, or 1406 low-

profile, full-travel membrane

keyboard.

Semtech and KeyCoder are registered trademarks

of Semtech Corporation. LapCoder and Self-

Power Management are trademarks of Semtech

Corporation. All other trademarks belong to their

respective companies.

DOC5-FJ8-DS-110

www.semtech.com

1

ORDERING CODE

Keyboard

Package options

Pitch

TA =

-40°C to +85°C

UR5HCFJ8-FN

UR5HCFJ8-FB

FKB7211

44-pin, Plastic PLCC

44-pin, Plastic QFP

1.27 mm

0.8 mm

FKB1406

44-pin, Plastic PLCC

44-pin, Plastic QFP

1.27 mm

0.8 mm

UR5HCFJ8-06-FN

UR5HCFJ8-06-FB

FKB7316

44-pin, Plastic PLCC

44-pin, Plastic QFP

1.27 mm

0.8 mm

UR5HCFJ8-16-FN

UR5HCFJ8-16-FB

BLOCK DIAGRAM

NUMLK/CAPSLK/SCRLLK

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

8042 Emulation

EKC

(External Keyboard)

Communication

Channel

EKD

DOC5-FJ8-DS-110

www.semtech.com

2

FUNCTIONAL DESCRIPTION

PIN DEFINITIONS

The LapCoder™ consists

Mnemonic

VCC

VSS

VX

VXA

PLCC

QFP Type Name and Function

functionally of the following major

sections, as shown in the block

diagram on the previous page: the

Keyboard Encoder, the PC

44

22

4

3

7

38

17

43

I

Power supply: +5V

Ground

Tie to Vcc

I

Tie to Vcc

RP

2

41

37

36

42

I

O

I

Reserved: Ties to Vcc

Reset: Apply 0V for orderly start-up

Oscillator input

Oscillator output

Interrupt line: Reserved for low-power

applications

Communication Channel, the Data

Buffer, the Interrupt Control and the

8042 Emulation Channel. All

sections communicate with each

other and operate concurrently.

_RESET

OSCIN

OSCOUT

_IRQ

1

43

42

2

KD

8

9

3

4

I/O

Keyboard data: Connects to PC

keyboard port clock line

Keyboard clock: Connects to PC

keyboard port clock line

External keyboard data: Connects to

external keyboard data line

External keyboard clock: Connects

to external keyboard clock line

External keyboard clock 1: Connects

to external keyboard clock line and is used

to generate an interrupt for every clock line

transition

KEYBOARD ENCODER

KC

The LapCoder™ continuously

scans an 8 row by 16 column

keyboard matrix for a maximum of

128 keys. Smaller-size keyboards

are supported, provided all unused

row lines are pulled to Vcc.

EKD

EKC

EKC1

11

10

41

6

5

35

The IC selects 1 of the 16 column

lines (C0-C15) every 512 ms 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

R0-R5

R6

R7

32-37

6

27-32

1

I

Row data inputs

39

40

34

R7A

I

Tie to R7

C0-C4

C5-C7

C8-C11

C12-C15

C4A

CAPSLK

NUMLK

SCRLLK

NC

13-17

19-21

31-28

37-24

18

8-12

13-15

26-23

21-18

O

Column select outputs: Selects 1 of

16 columns

Tie to C4

Caps lock LED

Num lock LED

Scroll lock LED

12

5

38

23

7

44

33

16,22

39,40

No connects: These pins are unused.

transmit buffer of the PC

communication channel.

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 101/102/104 standard

keyboard.

Scan Code Sets

The LapCoder™ supports all three

scan code sets. Scan code sets 1

and 2 are the default sets for AT /

PS/2 systems. Scan code set 3

allows the user to program

individual key attributes such as

make/break, Typematic, or single-

touch action. For more

information, refer to the IBM

technical reference manuals.

DOC5-FJ8-DS-110

www.semtech.com

3

KEYBOARD ENCODER (CONT’D)

N-KEY ROLLOVER

Embedded Numeric Keypad

N-Key Rollover

The LapCoder™ implements an

embedded numeric keypad. The

Numeric Keypad Function is

invoked by pressing the Num Lock

Key.

N-key rollover means 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) are 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. Several keys

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

closures occur within a time interval of less than 5 ms, an error flag is set

and those closures are not processed. This protects against the effects of

accidental key presses.

FN Key

A special FN Key has been

implemented which has the

following effects while it is held

pressed.

GHOST KEYS

For the FKB7211 only:

“Ghost” Keys

• Function Key F1 becomes F11

• Function Key F2 becomes F12

• Ctrl Left Key becomes Ctrl Right

• Alt Left Key becomes Alt Right

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

If Num Lock is set:

Actual key presses

• Embedded numeric keypad

keys become regular keys.

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

time by a fast typist (i.e., keys located

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.)

in adjacent positions on the keyboard)

should be placed in the same row or

column of the matrix, whenever

possible. A shift key (Shift, Alt, Ctrl,

Windows) should share its row and its

column with as few other keys as

possible, and not with any key likely to

be pressed at the same time.

“Ghost”

Key

Figure 1: “Ghost” or “Phantom” Key

Status LED indicators

Problem

The controller provides interfacing

for three LED shift status

The LapCoder™ has built-in mechanisms to detect “ghost” keys.

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).

DOC5-FJ8-DS-110

www.semtech.com

4

SPECIAL HANDLING

PC COMMUNICATION

Hot Plug-In of External

Device

The LapCoder™ implements all the

standard functions of

The following table shows the

commands that the keyboard may

send to the system.

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

LapCoder™ supports all

commands from and to the system,

as described in the IBM technical

reference manuals.

The LapCoder™ detects 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 issues a

reset to initialize the external

keyboard properly. After

Command

Hex Value

Key Detection

Error/Overrun

0x00*

Keyboard ID

0x83AB

0xAA

0xFC

0xEE

0xFA

BAT Completion Code

BAT Failure Code

Echo

The following table shows the

commands that the system may

send and their values in

hexadecimal.

communication has been

Acknowledge (Ack)

Resend

established, the encoder continues

to check for the presence of the

external keyboard. While the

external device is connected, the

encoder does not enter sleep

mode. If the device is

0xFE

Key Detection

Error/Overrun

Command

Hex Value

0xFF**

Set/Reset Status

Indicators

0xED

*Code Sets 2 and 3

**Code Set 1

Echo

0xEE

0xEF

0xF0

disconnected, the encoder

becomes aware of it. If a

Table 3: Keyboard Commands to the

System (AT / PS/2 protocol)

Invalid Command

subsequent connection takes

place, the controller reinitiates a

reset sequence. This unique

feature allows the user to connect

or disconnect an external device at

any time without resetting the

system.

Select Alternate

Scan Codes

8042 Emulation Channel

Invalid Command

Read ID

0xF1

0xF2

0xF3

The LapCoder™ fully emulates a

system’s keyboard port, available

to a standard 82/101/102/104

external keyboard or other 8042-

compatible device.

Set Typematic

Rate/Delay

Enable

0xF4

0xF5

0xF6

Communication with a keyboard-

compatible device is

Shift Status LEDs

Default Disable

Set Default

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

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 are 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 is affected in both

keyboards. The LED status

indicators are properly set after

every new connection of an

external keyboard.

Set All Keys

Typematic

Make/Break

Make

0xF7

0xF8

0xF9

0xFA

Typematic/Make/Break

Set Key Type

Typematic

Make/Break

Make

0xFB

0xFC

0xFD

Resend

Reset

0xFE

0xFF

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.

transmitted to the external device.

DOC5-FJ8-DS-110

www.semtech.com

5

KEY MAP FOR FKB7211 (LAPCODER™)

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-FJ8-DS-110

www.semtech.com

6

KEYBOARD LAYOUTS (US ENGLISH)

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

layouts. (Key numbering of a standard 101/102/104 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

36

51

37

52

38

53

39

86

30

CpsLck

31

32

47

40

55

41

43

Enter

,

K

A

S

D

F

G

H

J

L

;

PgDn

¹²8⁶1

110

113

114

115

116

118

119

120

121

90

NmLk

125

124

117

112

57

50_F6

46_F2

54

F10

_PrSc83

44 _F1

Esc

F3

F4

F5

F7

F8

F9

ScLk

Brk

,

Shift

Z

X

C

V

B

N

M

.

1

/

Shift

End

13

80

2

3

4

5

6

7

8

9

10

11

12

15

BkSp

84

1

2

3

4

5

6

7

8

9

0

-

Home

=

89

75

60

76

Del

79

28

58

61

24

FN

SPACE

21 22

,

Ctrl

16

Alt

Ins

23

85

17

18

19

20

25

29

26

27

[

]

\

Tab

Q

W

E

R

T

Y

I

0

P

PgUp

U

33

34

49

35

50

36

51

37

52

38

53

39

86

30

CpsLck

31

32

40

55

41

43

Enter

,

K

A

S

D

F

G

B

H

J

L

;

/

PgDn

Layout B (Num Lock is set)

57

48

81

46

47

54

83

44

Shift

,

Z

X

C

V

N

M

.

_F91

Shift

76⁹⁰

End

8¹9²⁶

110

113

114

115

116

118

119

120

121

125

ScLk

117

112

^F1FN

75

8¹4²⁴

PrSc

60

79

_Esc58

F6

F2

F3

F4

F5

F7

F8

F10

Brk

NmLk

61

SPACE

,

Ctrl

Alt

Ins

100

Del

12

13

80

2

3

4

5

6

7

91

96

101

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

34

49

35

50

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

F

G

H

1

0

PgDn

48

95

57

79

81

104

.

83

44

Shift

,

C

V

B

N

/

Shift

End

89

1

75

Ins

84

76

Del

58

61

FN

SPACE

,

Ctrl

Alt

DOC5-FJ8-DS-110

www.semtech.com

7

KEYBOARD LAYOUTS (US ENGLISH)

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

layouts. (Key numbering of a standard 101/102/104 keyboard is shown.)

Layout C (FN key pressed)

126

110

Esc

123

F12

114

115

116

118

119

120

121

F10

90

NmLk

125

ScLk

124

PrSc

117

122

F11

F6

F3

F4

F5

F7

F8

F9

Brk

13

80

2

3

4

5

6

7

91

96

101

100

12

15

Home

1

2

3

4

5

6

PgUp

-

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

-

33

48

34

49

35

50

36

51

93

End

98

53

103

86

30

CpsLck

31

46

32

47

62

106

+

41

43

Enter

,

A

Z

S

X

D

C

F

V

G

H

PgDn

99

Ins

2

95

81

104

Del

83

44

Shift

,

B

N

/

Shift

End

89

1

75

Ins

84

76

79

64

61

FN

SPACE

,

Ctrl

Alt

Del

Layout D (Num Lock set and FN key pressed)

126

110

Esc

123

114

115

116

118

119

120

121

F10

90

NmLk

125

ScLk

124

PrSc

117

122

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

62

40

55

41

43

Enter

,

K

A

Z

S

X

D

C

F

V

G

H

J

L

;

/

PgDn

57

79

81

83

44

Shift

,

B

N

M

.

1

Shift

End

89

75

Ins

84

76

64

61

FN

SPACE

,

Ctrl

Alt

Del

DOC5-FJ8-DS-110

www.semtech.com

8

IMPLEMENTATION NOTES FOR THE LAPCODER™

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

pages.

The built-in oscillator on the LapCoder™ requires the attachment of a 4.00

MHz ceramic resonators with built-in load capacitors. You can use either

an AVX part number PBRC-4.00 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 LapCoder™ constantly switches the clock on

and off, it is important that the ceramic resonator is used (it starts up more

quickly 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 either case, using a ceramic resonator with built-in load capacitors, or

crystal with external load capacitors, a feedback resistor of 1 MegaOhm

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).

DOC5-FJ8-DS-110

www.semtech.com

9

SUGGESTED INTERFACING FOR THE LAPCODER™ UR5HCFJ8-FN

5

2

3

1

RESET

43

OSCIN

44

VCC

42

OSCOUT

330Ω

5

NUMLK

12

38

CAPSLK

22

VSS

SCRLLK

DOC5-FJ8-DS-110

www.semtech.com

10

MECHANICALS FOR THE UR5HCFJ8-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-FJ8-DS-110

www.semtech.com

11

MECHANICALS FOR THE UR5HCFJ8-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-FJ8-DS-110

www.semtech.com

12

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

UR5HCFJ8-XX

Storage temperature range

ESD rating (human body model)

mA

TA

T low to T high

-40 to +85

-65 to +150

TBD

°C

TSTG

VESD

°C

KV

Thermal Characteristics

Characteristic

Symbol

Value

Unit

Thermal resistance

Plastic PLCC

TJA

70

°C per W

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

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* (Run)

I/O Ports hi-Z leakage current

Input current

V

mA

V

mA

µA

pF

0.4

VDD

0.2xVDD

10

0.7xVDD

Vss

IPP

VRM

5

2.0

I

DD

4.7

7.0

IIL

IIN

CIO

+/-10

+/- 1

12

I/O port capacitance

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

Crystal option

fOSC

4.0

MHz

External clock option

Internal operating frequency

Crystal (FOSC/2)

External clock option (FOSC/2)

Cycle time

Crystal oscillator startup time

Stop recovery startup time

Reset pulse width

Interrupt pulse width low

Interrupt pulse period

Oscillator input (OSCIN) pulse width

dc

fOP

tCYC

toxov

tiLCH

tRL

2.0

MHz

ns

ms

tcyc

ns

tcyc

ns

dc

1000

100

8

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-FJ8-DS-110

www.semtech.com

13

For sales information

and product literature,

contact:

Semtech Corporation

Human Interface Device (HID) and

System Management Division

200 Flynn Road

Camarillo, CA 93012-8790

sales@semtech.com

http://www.semtech.com/

(805)498-2111 Telephone

(805)498-3804 Fax

Semtech and KeyCoder are registered trademarks of Semtech

Corporation. LapCoder and Self-Power Management are

trademarks 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-FJ8-DS-110

www.semtech.com

14


型号：	UR5HCFJ8-06-FN
厂家：	SEMTECH CORPORATION
描述：	Microprocessor Circuit, CMOS, PQCC44, 1.27 MM PITCH, PLASTIC, LCC-44 外围集成电路
文件：	总14页 (文件大小：202K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

UR5HCFJ8-06-FN [SEMTECH]

相关型号：

UR5HCFJ8-06-P

UR5HCFJ8-16-FB

UR5HCFJ8-16-FN

UR5HCFJ8-16-P

UR5HCFJ8-CFB

UR5HCFJ8-CFN

UR5HCFJ8-CP

UR5HCFJ8-FB

UR5HCFJ8-FN

UR5HCFJ8-P

UR5HCFJ8-PA-CFB

UR5HCFJ8-PA-CFN