View HT6513B-16DIP_193305.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

M+ Plug & Play Mouse Controller
Features
* * * * * * *
HT6513B
Supports optomechanical mouse In M+ mode, compatible with Plug and Play Fit a defined Windows 95 class name in M+ mode Uses 32.768kHZ crystal Crystal oscillator circuits on chip 1200/9600 baud rate serial output Power directly from RS-232C without external power supply
* * * * *
Three key-switches and four photo-coupler inputs Compatible with both M+ and Mouse systems Microsoft system mode with middle key supported Mouse mode (M+/PC) changeable during power on reset RXD with heavy NMOS open drain output
General Description
The HT6513B is specially designed for PnP compatible mouse controller. Capable of driving up to 3 key-switches and 4 photo-couplers (optomechanical mouse) directly into a standard RS-232C line, and it can be operated without an external power supply. It is compatible with both M+ and Mouse systems with false entries beingpreventedbyinternaldebouncecircuits.
Block Diagram
X1 X2 Y1 Y2 TEST M R L
C o m p a ra to r a n d M o tio n D e te c to r
P lu g & P la y ID
D ebounce
M o d e S e le c to r
C o n v e rte r D a ta
C om m and D ecoder
RTS
MS OSCI OSCO O s c illa to r C ir c u it T im in g C o n tro l D a ta O u tp u t RXD
H B_LB
1
February 1, 2000
This Material Copyrighted By Its Respective Manufacturer
HT6513B
Pin Assignment
H B_LB 1 2 3 4 5 6 7 8 TEST MS OSCI OSCO RTS RXD VSS 16 15 14 13 12 11 10 9 R M L VDD Y2 Y1 X2 X1
HT6513B 1 6 D IP
Pad Description
Pad No. 1 2 Pad Name HB_LB TEST I/O I I Description If this pin is connected to high level, the RXD can transmit data at 9600 baud rate. The RXD is transmitted at 1200 baud rate while it is conected to low level or floating. For IC test only. The test pin must be connected to VSS, while the chip is under normal usage. When this pin is connected to VDD , operation is under M+ mode. If the pin is connected to VSS, then it will operate under the mouse system mode. If MS pin is floating , the product is under the power-on initiation mode. Oscillator input pin Oscillator output pin When a rising edge is sent to RTS the mouse will return a series ID code to identify the mouse mode. The RTS must be kept high while the mouse is in normal operation. NMOS, Serial data output Negative power supply Three key-switches have seven different combinations. Both key-pressed and key-released signals will be sent accompanied with horizontal and vertical status. The status of the key-switches, the values of horizontal or vertical counter will be present at RXD pin. Four photo-couplers/micro-switch signals denote UP, DOWN, LEFT and RIGHT state. During the scanning period, as long as the photo-couplers/micro-switch change their states, the value of vertical or horizontal counter will increase or decrease accordingly. Positive power supply
2 February 1, 2000
3 4 5 6 7 8
MS OSCI OSCO RTS RXD VSS R M L X1 X2 Y1 Y2 VDD
I I O I O I
9~11
I
12~15
I
16
I
This Material Copyrighted By Its Respective Manufacturer
HT6513B
Approximate internal connections
H B_LB TEST R M L
In te rn a l S ig n a l
OSCI
OSCO
In te rn a l s y s te m c lo c k
RXD RTS In te rn a l s ig n a l RXD in te r n a l c o n tr o l s ig n a l
TEST X 2 ( Y 2 ) P h a s e d ig ita l s ig n a l L M D R P o w e r o n re s e t V
CC
X 1 ( Y 2 ) P h a s e d ig ita l s ig n a l Q CLK
( O p to m e c h a n ic a l m o u s e ) VC
C
X1 X2 Y1 Y2 RL RD 4R P hase d ig ita l s ig n a l
R
MS
M o d e c o n tro l
X1/X2/Y1/Y2 Input pin I/V curve (optomechanical mouse)
V
V 1 /5 V
CC
R
L CC
/R
D
R
L
I
3
February 1, 2000
This Material Copyrighted By Its Respective Manufacturer
HT6513B
Absolute Maximum Ratings
Supply Voltage..............................-0.3V to 6.5V Input Voltage .................VSS-0.3V to VDD+0.3V Storage Temperature.................-50C to 125C Operating Temperature ..............-25C to 70C
Note: These are stress ratings only. Stresses exceeding the range specified under Absolute Maximum Ratings may cause substantial damage to the device. Functional operation of this device at other conditions beyond those listed in the specification is not implied and prolonged exposure to extreme conditions may affect device reliability.
D.C. Characteristics
Symbol VDD IDD VIL VIH VIL1 VIH1 IOL1 VOH RPL RL Parameter Operating Voltage Operating Current X1, X2, Y1, Y2 Input Low Voltage X1, X2, Y1, Y2 Input High Voltage Input Low Voltage, Other Pin Input High Voltage, Other Pin RXD Output Sink Current RXD High-level Output Voltage Pull-low Resistance X1, X2, Y1, Y2 Pull-low Resistance Test Conditions VDD 3/4 5.6V 5.6V 5.6V 5.6V 3/4 5.6V Conditions 3/4 3/4 3/4 3/4 3/4 3/4 L, M, R key-switches
Ta=25C Min. Typ. Max. Unit 3.5 3/4 0 1.4 0 3.5 5 3/4 65 3/4 3/4 400 3/4 3/4 3/4 3/4 10 3/4 3/4 60 6 600 1.0 5.6 1 5.6 3/4 16 200 3/4 V mA V V V V mA V kW kW
5.6V No load
5.6V VOL=0.56V
5.6V VI=0.2V
4
February 1, 2000
This Material Copyrighted By Its Respective Manufacturer
HT6513B
A.C. Characteristics
Symbol fSYS fP fN tKD tMS Parameter System Clock Photo-Couple Input Frequency Photo-Couple Operation frequency Key Debounce Test Conditions VDD 5.6V 5.6V 5.6V 5.6V 5.6V Transmission Time 5.6V tMI tMP tS tD tP tRD tr tf Transmission Time Transmission Time Start Bit Time Data Bit Time Stop Bit Time Mode Code Delay Time (fSYS=32.768kHz) Rising Edge Crossed Width Falling Edge Crossed Width Conditions Crystal oscillator 3/4 3/4 3/4 Mouse system (1200) Mouse system (9600) Min. 30.8 3/4 0 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 15 1.9 3/4 3/4 31 31 Typ. 32.768 3/4 3/4 52 41.3 5.3 24.8 3.18 33.1 4.2 0.85 0.106 0.82 0.106 0.82 0.106 3/4 3/4 3/4 3/4 Ta=25C Max. Unit 34.2 8.2 8 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 14 1.7 3/4 3/4 kHz kHz kHz ms ms ms ms ms ms ms ms ms ms ms ms ms ms ms ms ms
5.6V Microsoft (1200) 5.6V Microsoft (9600) 5.6V Microsoft + (1200) 5.6V Microsoft + (9600) 5.6V 5.6V 5.6V 5.6V 5.6V 5.6V (1200) (9600) (1200) (9600) (1200) (9600) (1200) (9600)
5
February 1, 2000
This Material Copyrighted By Its Respective Manufacturer
HT6513B
Functional Description
Mouse system mode Any change of state of the mouse key-switches or photo-couplers will be detected by the chip and transmitted over the RS-232C. The mouse system protocol will send five words at a 1200/9600 baud rate with each word containing 10 bits, 1 start bit, 1 stop bit and 8 data bits. Output word format Bit No. 1st word 2nd word 3rd word 4th word 5th word Mouse system word structures 7 1 H7 V7 EH7 EV7 6 0 H6 V6 EH6 EV6 5 0 H5 V5 EH5 EV5 4 0 H4 V4 EH4 EV4 3 0 H3 V3 EH3 EV3 2 L H2 V2 EH2 EV2 1 M H1 V1 EH1 EV1 0 R H0 V0 EH0 EV0 The first, second and third words correspond to key switch-status, horizontal counter and vertical counter respectively. The auto-speed sensing circuits ensure detection of higher mouse speeds resulting in the use of the 4th and 5th words for extra horizontal and vertical overflow counts respectively. For lower mouse speeds the 4th and 5th words remain at zero.
: denotes complement valus H0~H7: Horizontal counter valus V0~V7: Vertical counter valus EH0~EH7: Extra horizontal counter valus EV0~EV7: Extra vertical counter valus Microsoft plus (M+) mode Three words are transmitted with each word divided into 1 start bit, 7 data bits and 2 stop bits. The L and R switch status together with the two most significant bits of both vertical and horizontal counters are transferred in this first word. The second and third word represent the horizontal and vertical counters respectively. Note that this vertical data is recorded in 2s complement format. When the M Switch is pressed or released it will trigger the fourth word active. Output word format Bit No. 1st word 2nd word 3rd word 4th word Microsoft M+ word structures 6 1 0 0 0 5 L H5 4 R H4 3 2 1 0 H6 H0 V0 0
V7 V6 H7 H3 H2 H1
V5 V4 V3 V2 V1 M 0 0 0 0
6
February 1, 2000
This Material Copyrighted By Its Respective Manufacturer
HT6513B
Win 95 PnP ID fields For compatibility with old serial mouse drivers, all mouse-compatible pointing devices must restrict themselves to a 6 bit character set, for all fields except the mouse ID. Therefore, all M+ mode Field Name Old Mouse ID Begin Pnp Pnp Rev EISA ID Product ID Extended Class Name Driver ID Check sum End PnP Size 1 1 2 3 4 1 6 8 2 1 08 01, 24 28, 34, 2B 10, 10, 10, 11 3C 3C, 2D,2F, 35, 33, 25 3C, 30, 2E, 30, 10, 26,10, 23 19, 12 09 Field Data 4D, 33 Description Identifies a mouse for old microsoft mode drivers ( indicates PnP IDs will follow Identifies PnP version 1.0 HTK ( A mouse company ) 0001 ( Unique product identifier ) \ \MOUSE fits a defined Windows 95 class name \PNP0F0C fits a defined Windows 95 microsoft mouse compatible ID Check all characters from Begin PnP to End PnP, exclusive of the checksum characters themselves. ) indicates PnP IDs complete old-mouse-compatible strings are limited to values of 0x00 to 0x3f, character strings are ASCIIcodes from 0x20 to 0x5f, offset by subtracting 0x20.
Mouse system mode 6D
7
February 1, 2000
This Material Copyrighted By Its Respective Manufacturer
HT6513B
Timing Diagrams
W o rd s tru c tu re : RXD 1 s t w o rd M+RXD N o r m a l o p e r a tio n M+RXD M k e y P r e s s /R e le a s e 1 s t w o rd 1 s t w o rd 2 n d w o rd 2 n d w o rd 2 n d w o rd 3 rd w o rd 3 rd w o rd 3 rd w o rd 4 th w o rd 4 th w o rd 5 th w o rd M o u s e s y s te m
Key
o u tp u t : Key in /r e le a s e RXD 1 M+RXD R /L k e y P r e s s /R e le a s e 1 t 1 2 M+RXD M k e y P r e s s /R e le a s e 2 t
M
M o u s e s y s te m
3
S
4
5 1
2 t
3
M S
4
5
2
MI
3
1 t 3 4 1
2
MI
3
tM
P
2
tM
P
3
4
B it S tr u c tu r e : (1 ) M o u s e s y s te m RXD D a ta b it n o . tS t
D
0 t
1
D
t
D
2 t
3
D
t
4
D
t
D
5 t
6
D
t
D
7 t
0
P
(2 ) M + RXD D a ta b it n o . tS t
D
0 t
1
D
t
D
2 t
3
D
t
D
4 t
5
D
t
D
6 t
7
P
t
P
0
Note: RXD is complement of RXD.
8
February 1, 2000
This Material Copyrighted By Its Respective Manufacturer
HT6513B
M o d e s e le c tio n tim in g M + a n d M o u s e s y s te m RTS M+ RXD tR
D
m ode
tR
D
4D M o u s e S y s te m RXD 6D
P n P ID
4D 6D
P n P ID
PnP COM
E n u m e r a to r tim in g check dev T1 DTR T2 1st s e tu p T3 1st w a it T4 2nd s e tu p T2 2nd w a it T4 ld le
RTS 200m s 35m s T1: T2: T3: T4: T5: T6: T7: in te r v a in te r v a D T R -R m a x im PnP C PnP C d is c o n l to l fo TS um OM OM nec 200m s 35m s 200m s 35m s 200m s 35m s 200m s 35m s 200m s 35m s
h o ld D T R h ig h w h ile w a itin g fo r D S r e x te r n a l d e v ic e to p o w e r d o w n o r e n u m e r a to r s ig n a tu r e d e la y in te r v a l to w a it fo r D S R a n d /o r fir s t ID p e r /c h a r a c te r tim e o u t is 2 0 0 m s ID E n d P n P tim e o u t is 2 .2 s e c o n d s t v e r ific a tio n tim e o u t fo r 5 s e c o n d s
R d e te c t th e p o rt s ta te r e c e iv e d c (notshow (notshow (notshow h a ra c te r n) n) n)
P h o to -c o u p le r c r o s s e d w id th X 1 (Y 1 ) X 2 (Y 2 ) tr tf
9
February 1, 2000
This Material Copyrighted By Its Respective Manufacturer
HT6513B
Application Circuits
V DSR 2 3 4 32768 Hz 5 6 7 8 TXD RTS 4 .7 k W RXD V
SS DD
1
H B_LB TEST MS OSCI OSCO RTS RXD
VDD Y2 Y1 X2 X1 L M R 9
16 15 14 13 12 11 10 1 .5 k W 10mF 5 .1 V
SG
DTR
3M W
VSS
HT6513B
10
February 1, 2000
This Material Copyrighted By Its Respective Manufacturer
HT6513B
Holtek Semiconductor Inc. (Headquarters) No.3 Creation Rd. II, Science-based Industrial Park, Hsinchu, Taiwan, R.O.C. Tel: 886-3-563-1999 Fax: 886-3-563-1189 Holtek Semiconductor Inc. (Taipei Office) 5F, No.576, Sec.7 Chung Hsiao E. Rd., Taipei, Taiwan, R.O.C. Tel: 886-2-2782-9635 Fax: 886-2-2782-9636 Fax: 886-2-2782-7128 (International sales hotline) Holtek Semiconductor (Hong Kong) Ltd. RM.711, Tower 2, Cheung Sha Wan Plaza, 833 Cheung Sha Wan Rd., Kowloon, Hong Kong Tel: 852-2-745-8288 Fax: 852-2-742-8657 Copyright O 2000 by HOLTEK SEMICONDUCTOR INC. The information appearing in this Data Sheet is believed to be accurate at the time of publication. However, Holtek assumes no responsibility arising from the use of the specifications described. The applications mentioned herein are used solely for the purpose of illustration and Holtek makes no warranty or representation that such applications will be suitable without further modification, nor recommends the use of its products for application that may present a risk to human life due to malfunction or otherwise. Holtek reserves the right to alter its products without prior notification. For the most up-to-date information, please visit our web site at http://www.holtek.com.tw.
11
February 1, 2000
This Material Copyrighted By Its Respective Manufacturer

▲Up To Search▲

Price & Availability of HT6513B-16DIP

	To Download HT6513B-16DIP Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .