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Atmel AT43USB324, Manual

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23

AT43USB324

1941A–02/01

AT43USB324 Keyboard Schematic Diagram

USB324_REF6A

1.0

LQFP AT43USB324-AC USB Keyboard With Embedded Hub

A

11

Monday, August 21, 2000

Title

Size

Document Number

Rev

Date:

Sheet

of

VBUS

VBUS

SCANO_8

SCANO_17

SCANO_1

SCANO_3

SCANO_14

SCANO_16

SCANO_11

SCANO_9

SCANI_6

SCANO_13

SCANI_4

SCANO_4

SCANO_10

SCANO_12

SCANI_2

SCANO_7

SCANI_7

SCANI_0

SCANI_5

SCANO_5

SCANO_15

SCANO_0

SCANI_3

SCANO_2

SCANO_6

SCANI_1

CEXT

SCANO 16

SCANO 17

SCANO 13

CEXT

L2

FB

L3

FB

USB-B

J1

4

3

2

1

L1

FB

L4

FB

Y1

6.000 MHz

C1

0.22 UF

+

C5

4.7 UF

C4

0.1 UF

R15

100K

L6

FB

USB-A

J3

4

3

2

1

L5

FB

R1

100

R5

27

R4

27

U3

MIC2526-2

7

1

4

2

8

5

3

6

IN

CTLA

CTLB

FLGA

OUTA

OUTB

FLGB

GND

R16

100K

D3

Scroll Lock

D2

Cap Lock

D1

Num Lock

+

C12

100 UF

R6

27

USB-A

J2

4

3

2

1

R7

27

+

C11

100 UF

R

1

1

15

K

C9

0.1 UF

R

1

2

15

K

C10

0.1 UF

R

1

0

15

K

R9

15

K

R3

27

C6

0.47 UF

R2

27

R8

1.5 K

C15

47 pF

C17

47 pF

C14

47 pF

C18

47 pF

C13

47 pF

C16

47 pF

C2

0.01 UF

U1

AT43USB324_AC

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

1

2

3

4

5

6

PD6

PD7

XTAL1

XTAL2

LFT

PE1

PE0

PB7

PB6

PB5

PB4

PB3

PB2

PB1

PB0

PA7

PA6

PA5

PA4

PA3

PA2

PA1

PA0

PC7

PC6

PC5

PC4

PC3

PC2

PC1

PC0

PD0

PD1

PD2

PD3

DP3

DM3

DP2

DM2

DP0

DM0

RE

SE

TN

TE

ST

VS

S

CE

XT

VC

C

PD4

PD5

U2

AT24C02A

1

2

3

4

5

6

7

8

A0

A1

A2

GND

SDA

SSCL

WP

VCC

R

1

3

15

K

R

1

4

15

K

R17

15K

SCAN

OUTPUTS

SCAN

INPUTS

Summary of Contents for AT43USB324

Page 1: ...orting the Consumer Page as described in the USB HID Usage tables A typical application of the AT43USB324 is shown in Figure 1 and block diagrams are shown in Figures 2 and 3 The AT43USB324 interfaces...

Page 2: ...1 XTAL2 LFT RST TEST PWR3 PD3 PWR2 PD4 OVC3 PD2 OVC2 PD1 DP0 DM0 DP2 DM2 DP3 DM3 PA 0 7 PB 0 7 PE 0 1 PC 0 7 PD 5 7 PD0 CEXT VCC VSS COL 0 7 COL 8 15 COL 16 17 ROW 0 7 LEDs KEYBOARD DATA ADDRESS CONTR...

Page 3: ...3 AT43USB324 Figure 3 USB Block Diagram 2 PORT 0 XCVR HUB REPEATER SERIAL INTERFACE ENGINE HUB INTERFACE UNIT FUNCTION INTERFACE UNIT AVR MICROCONTROLLER DATA ADDRESS CONTROL PORT 2 XCVR PORT 3 XCVR...

Page 4: ...B 29 PA0 CL0 B 6 PD5 B 30 PC7 RW7 B 7 PD6 B 31 PC6 RW6 B 8 PD7 B 32 PC5 RW5 B 9 XTAL1 I 33 PC4 RW4 B 10 XTAL2 O 34 PC3 RW3 B 11 LFT O 35 PC2 RW2 B 12 PE1 CL17 B 36 PC1 RW1 B 13 PE0 CL16 B 37 PC0 RW0 B...

Page 5: ...7 PE0 CL16 B 31 PC0 RW0 B 8 PB7 CL15 B 32 PD0 B 9 PB6 CL14 B 33 PD1 B 10 PB5 CL13 B 34 PD2 B 11 PB4 CL12 B 35 PD3 B 12 PB3 CL11 B 36 DP3 U 13 PB2 CL10 B 37 DM3 U 14 PB1 CL9 B 38 DP2 U 15 PB0 CL8 B 39...

Page 6: ...ferential signal pin pairs to connect downstream USB devices DM 2 3 U Port Minus USB I O Each of these pins should be connected to VSS through an external 15 k resistor PA 0 7 B Port A 0 7 Bi directio...

Page 7: ...he USB hub frequency accuracy and stability requirements for hubs the crystal should have an accuracy and stability of better than 100 ppm The use of a ceramic resonator in place of the crystal is not...

Page 8: ...of the microcontroller When an overcurrent occurs FLG is asserted and the firmware should set the Hub Overcurrent Indicator and Hub Overcurrent Indicator Change and switch off power to the hub 2 Indi...

Page 9: ...9 AT43USB324 Figure 5 Power Management Circuit Diagram BUS_POWER GND GND VCC AT43USB324 PWR OVC CTL FLG PORT2_POWER PORT2_GND PORT3_POWER PORT3_GND SWITCH IN OUT U1 U2...

Page 10: ...s for extended periods of time may affect device reliability Storage Temperature 65 C to 150 C All Input Output Voltage 0 3V to VCEXT 0 3V 4 6V max Supply Voltage VCC 4 4V to 5 5V Power Supply Symbol...

Page 11: ...l PD 0 3 0 3 VCEXT V VIH4 Input High Level PD 0 3 0 7 VCEXT V VOL4 Output Low Level PD 0 3 IOL 4 mA 0 3 VCEXT V VOH4 Output High Level PD 0 3 IOH 4 mA 0 7 VCEXT V C Input Output Capacitance 1 MHz 10 p...

Page 12: ...tter 1 No Clock Adjustment 42 ns tRFIADJ Consecutive Frame Interval Jitter 1 With Clock Adjustment 126 ns tDJ1 tDJ2 Source Differential Driver Jitter To Next Transition For Paired Transitions 2 1 2 1...

Page 13: ...s Upstream 45 15 45 45 45 15 45 45 ns tSOP Data Bit Width Distortion after SOP 60 60 ns tLEOPD Hub EOP Delay Relative to tHDD 0 200 ns tLHESK Hub EOP Output Width Skew 300 300 ns Hub Event Timings Sym...

Page 14: ...data are stored sequentially as described below Initial Check Byte This check byte is located immediately after the last VID PID or strings It is computed as the truncated sum of Mask 1 and all the s...

Page 15: ...1 0x71 Col 1 Row 2 0x78 Col 2 Row 1 0x79 Col 2 Row 2 0xF8 Col 18 Row 1 0xF9 Col 18 Row 2 0xFF Col 18 Row 8 Example of EEPROM Data Address Data Description 00 17 Fixed ID 01 5A Fixed ID 02 00 Reserved...

Page 16: ...umber 09 01 Version Number 0A 91 Checksum Language ID Address Data Description 0B 04 Number of Bytes 0C 03 The Next 3 Bytes Specifies the Language ID 0D 09 0E 10 0F 20 Checksum Manufacturer String Add...

Page 17: ...Bytes 1E 03 1F 4D M 20 00 21 4D M 22 00 23 4B K 24 00 25 42 B 26 00 27 44 D 28 00 29 48 H 2A 00 2B 55 U 2C 00 2D 42 B 2E 00 2F 5F Checksum Serial Number String Address Data Description 30 08 Number of...

Page 18: ...cription 41 F0 Checksum of Mask Byte Bytes in Language ID Bytes in Manuf String Bytes in Product String Bytes in Serial Number Bytes in Extra Hot Keys BF 04 0C 12 08 07 F0 42 through 6E Don t Cares Ma...

Page 19: ...7 2 Insert 88 37 0 3 Period 89 2F 1 3 8A 0F 2 3 L 8B 41 3 3 F8 8C 12 4 3 O 8D 40 5 3 F7 8E 2D 6 3 8F 26 7 3 9 90 05 0 4 B 91 0A 1 4 G 92 19 2 4 V 93 22 3 4 5 94 09 4 4 F 95 21 5 4 4 96 17 6 4 T 97 15...

Page 20: ...7 Right GUI AF 52 7 7 Up Arrow B0 62 0 8 KP 0 B1 5D 1 8 KP 5 B2 5A 2 8 KP 2 B3 45 3 8 F12 B4 60 4 8 KP 8 B5 44 5 8 F11 B6 4D 6 8 End B7 4A 7 8 Home B8 59 0 9 KP 1 B9 5C 1 9 KP 4 BA 57 2 9 KP BB 65 3...

Page 21: ...4 1 12 A D2 6D 2 12 D3 35 3 12 D4 14 4 12 Q D5 29 5 12 Escape D6 2B 6 12 Tab D7 1E 7 12 1 D8 6E 0 13 D9 C9 1 13 HK Vol Decrement DA 70 2 13 DB 71 3 13 DC B0 4 13 HK Mute DD 72 5 13 DE 73 6 13 DF 74 7...

Page 22: ...53 3 15 KP Num Lock EC DF 4 15 HK Bookmark ED 56 5 15 KP EE D9 6 15 HK Search EF D0 7 15 HK e mail F0 DD 0 16 HK AC Stop F1 74 1 16 F2 DE 2 16 HK Refresh F3 58 3 16 KP Enter F4 DC 4 16 HK Forward F5 4...

Page 23: ...U3 MIC2526 2 7 1 4 2 8 5 3 6 IN CTLA CTLB FLGA OUTA OUTB FLGB GND R16 100K D3 Scroll Lock D2 Cap Lock D1 Num Lock C12 100 UF R6 27 USB A J2 4 3 2 1 R7 27 C11 100 UF R1 1 15 K C9 0 1 UF R1 2 15 K C10...

Page 24: ...206C470J5GACTR Newark 93F2371 8 1 J1 USB B Series B Connector AMP 787780 1 9 2 J2 J3 USB A Series A Connector AMP 787616 1 10 3 D1 D2 D3 LED Green Jameco 34606 XC2 11 6 L1 L2 L3 L4 L5 L6 Ferrite Bead...

Page 25: ...8 75 344 Controlling dimension millimeters 0 000 000 0 000 000 2 413 095 2 794 110 203 0080 343 0135 203 008 406 016 635 025 127 005 254 010 0 508 02 1 016 04 0 8 REF 10 033 395 10 668 420 7 391 291...

Page 26: ...41 Casa Postale 80 CH 1705 Fribourg Switzerland TEL 41 26 426 5555 FAX 41 26 426 5500 Asia Atmel Asia Ltd Room 1219 Chinachem Golden Plaza 77 Mody Road Tsimhatsui East Kowloon Hong Kong TEL 852 2721...

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