LC19001A010 SANYO | Alldatasheet
Document overview
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Technical content
Features
- Detects input coordinate values from resistive membrane pressure-sensitive digitizers at readout speeds up to 190 points per second using a 10-bit A/D converter.
- Compact size, low power, and the 3.3 V power supply operation appropriate for PDAs and other portable information-processing equipment
- Menu area registration, duplicate coordinate processing, and 4-byte packets reduce the host CPU processing load.
- Logical exclusion of abnormal coordinates and averaging processing to remove both pen chattering noise and noise from the LCD system
- Controller functions can be programmed by sending command data from the host CPU. Package Dimensions unit: mm 3326-LQFP80 CMOS LSI Ordering number : EN*5560B O3096HA (OT) No. 5560-1/8 Preliminary SANYO: LQFP80 [LC19001A010] SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN Digitizer Controller LC19001A010
No. 5560-2/8 LC19001A010
No. 5560-3/8 LC19001A010 Pin No. Pin I/O Function
1 UI In RS-232C receive data input (CMOS level)
2 UO Out RS-232C send data output (CMOS level)
3 NC Out
4 NC Out
5 NC Out
6 NC Out
7 NC Out
8 NC Out
9 MOD0 In GND
10 M OD 1 In GND
11 X0 Clock oscillator connection
12 X1 Clock oscillator connection
13 VSS GND
14 RSTX In Reset input (active low)
15 NC Out
16 NC Out
17 NC Out
18 NC Out
19 NC Out
20 NC Out
21 NC Out
22 NC Out
23 OUTPDWN Out Pen down switch output port
24 NC In
25 NC In
26 NC In
27 OUTY0 Out Digitizer electrode switching output: Y (Y0)
28 OUTY1 Out Digitizer electrode switching output: Y (Y1)
29 OUTX0 Out Digitizer electrode switching output: X (X0)
30 OUTX1 Out Digitizer electrode switching output: X (X1)
31 NC In
32 CHK1 Out Internal state verification output port 1
33 NC In
34 CHK2 Out Internal state verification output port 2
35 NC In
36 CHK3 Out Internal state verification output port 3
37 NC In
38 PDWIN In Pen down level detection
39 T1 In Communication format setting input port 1
40 T2 In Communication format setting input port 2
41 T3 In Communication format setting input port 3
42 T4 In Communication format setting input port 4
No. 5560-4/8 LC19001A010 Continued from preceding page Pin No. Pin I/O Function
43 BR1 In Baud rate setting input port 1
44 BR2 In Baud rate setting input port 2
45 BR3 In Baud rate setting input port 3
46 CK In Operating frequency setting input port (See the external switch settings)
47 NC In
48 NC In
49 NC In
50 NC In
51 NC In
52 CHK4 Out Internal state verification output port 4. (High in sleep or stop modes)
53 VCC Power supply
54 CHK5 Out Internal state verification output port 5
55 RST_S Out Reset notification signal
56 VSS GND
57 NC Out
58 NC Out
59 NC In
60 NC In
61 NC In
62 INT_PDW In Pen down interrupt (level)
63 INT_S In Stop mode clear interrupt (Connect with UI)
64 NC In
65 NC In
66 NC In
67 NC In GND
68 NC In GND
69 NC In GND
70 NC In GND
71 INY1 In Digitizer analog input: Y (Y1)
72 INY0 In Digitizer analog input: Y (Y0)
73 INX1 In Digitizer analog input: X (X1)
74 INX0 In Digitizer analog input: X (X0)
75 AV CC Analog system power supply (A/D converter power supply)
76 AVR In A/D converter reference voltage input
77 AV SS Analog system ground (A/D converter ground)
78 NC In
79 NC Out
80 NC Out
No. 5560-5/8 LC19001A010 Parameter Symbol Conditions Rated value Unit min max Supply voltage VCC VSS – 0.3 VSS + 7.0 V AV CC Must not exceed VCC . *1 VSS – 0.3 VCC + 0.3 V A/D converter reference input voltage AVR Must not exceed AVCC + 0.3 V. VSS – 0.3 VCC + 0.3 V Input voltage VI *2 VSS – 0.3 VCC + 0.3 V Output voltage VO 1 *2 VSS – 0.3 VCC + 0.3 V Maximum low-level output current IOL 20 mA Average low-level output current IOLAV The average value of (operating current · operating ratio) 4 mA Maximum total low-level output current ∑ IOL 100 mA Average total low-level output current ∑ IOLAV The average value of (operating current · operating ratio) 40 mA Maximum high-level output current IOH –20 mA Average high-level output current IOHAV The average value of (operating current · operating ratio) –4 mA Maximum total high-level output current ∑ IOH –50 mA Average total high-level output current ∑ IOHAV The average value of (operating current · operating ratio) –20 mA Power dissipation Pd 300 mW Operating temperature Ta –40 +85 °C Storage temperature Tstg –55 +150 °C Specifications Absolute Maximum Ratings Note: 1. The LC19001A010 must be used with AVCC and VCC at the same potential. Also, applications must assure that AVCC does not exceed VCC at power on. 2. VIand VO 1 must not exceed VCC + 0.3 V. <Notes> This LSI can be permanently damaged by use at stresses in excess of the absolute maximum ratings. It is desirable that the LC19001A010 be operated within the recommended operating conditions during normal operation. In particular, the LSI’s reliability may be adversely affected if these conditions are exceeded. Note: The guaranteed analog ranges vary with the frequency used. Parameter Symbol Conditions Rated value Unit min max Supply voltage VCC Guaranteed range for normal operation* 2.2* 6.0* V RAM state retention in stop mode 1.5 6.0 V A/D converter reference input voltage AVR 0.0 AV CC V Operating temperature Ta –40 +85 °C Recommended Conditions at AVSS = VSS = 0 V Parameter Symbol Pins Conditions Ratings Unit Operating min typ max frequency ICC 1 Normal VCC = 5.0 V 12 20 mA 10 MHz ICC 2 VCC = 3.3 V 12 mA 8 MHz ICCS 1 VCC Sleep mode VCC = 5.0 V 3 7 mA 10 MHz Current drain ICCS 2 VCC = 3.3 V 1 1.5 mA 8 MHz ICCH Stop mode Ta = 25°C 1 µA 8 MHz IA AV CC A/D converter active 4 mA 8 MHz IAH A/D converter stopped Ta = 25°C 1 µA 10 MHz Input capacitance Cin Pins other than AVCC , f = 1 MHz 10 pFAV SS , VCC and VSS DC Standards at Ta = –40 to 85°C
Digitizer Controller Provisional Specifications *Initial values No. 5560-6/8 LC19001A010 Parameter Function Description Coordinate calculation method Source data mode A/D converted data is sent to the host CPU. (Normalized data mode)* Normalized data is sent to the host CPU. Interface Serial communications Asynchronous serial communications Communication rates (transfer rates)1200, 2400, 4800, External switches are used to set the initial communication rate. See the “External 9600, 19200 (bps) Switch Settings” charts. However, the LC19001A010 does not support 19200-bps communication at 8 MHz. The rate can be changed by command. Communication format Data length: 8 bits External switches are used to set the initial communication format. See the Parity: none, even, odd “External Switch Settings” charts. Stop bits: 1 or 2 Output rate (sampling rate) Can be set to an arbitrary 10 MHz: Maximum normalized data rate: 150 p/s value. Maximum source data rate: 190 p/s Initial value (When the baud rate is 19200)
10 MHz: 100 P/S 8 MHz: Maximum normalized data rate: 120 p/s
8 MHz: 80 P/S Maximum source data rate: 150 p/s
(When the baud rate is 9600) Note: The above values apply when no menu area is registered. Coordinate data format 4-byte binary See the “Coordinate Data Format” charts. Data output mode Point When the pen is down, coordinate values are output one point at a time. (Stream)* While the pen remains down, coordinate values are output continuously. Power dissipation (chip) Low power functions • Events that recover from sleep mode: Pen down, reset, command reception
- Events that recover from stop mode: Pen down, reset, stop clear command Methods for switching modes:There are two types of command that are used to switch to the low power modes as follows: Direct Direct: The LC19001A010 switches to the low power mode after the command is accepted. Auto Auto: After the last coordinate input, if there is no input for a preset time, the LC19001A010 switches to the low power mode. Transition times • Transition from normal mode to low power mode: about 5 µs
- Transition from low power mode to normal mode: Sleep mode: about 5 µs Stop mode: The oscillator stabilization period plus 5 µs Drive voltage 3.3 to 6 V An 8 MHz clock frequency must be used when the drive voltage is 3.3 V. Clock frequency 8 MHz, 10 MHz Chip size (mm) 14 · 14 · 1.5 A/D converter resolution 10-bit Linearity error: ±2 LSB (5 V, 10 MHz operation) Linearity error: ±2 LSB (3.3 V, 8 MHz operation) 5-V drive 140 mW (MAX) At a 10-MHz operating frequency, with the pen down 3.3-V drive 52.8 mW (MAX) At an 8-MHz operating frequency, with the pen down Chip power dissipationSleep mode Stop mode Operating frequency 5-V drive 35 mW (MAX) 5 µW (MAX) 10 MHz 3.3-V drive 4.95 mW (MAX) 3.3 µW (MAX) 8 MHz Sleep: CPU operation is stopped, but all other circuits operate. Stop: The oscillator circuit is stopped. Continued on next page.
No. 5560-7/8 LC19001A010 Continued from preceding page. Parameter Function Description Reset Hardware reset There are four types of reset: hardware reset, software reset, power on reset, and Software reset watchdog reset. Power on reset Operation starts after the oscillator stabilization period has elapsed when stop mode is cleared and after a power on reset. Watchdog reset A reset function operates automatically if the application software fails. Status diagnostic function Control setting state Sends the controller’s current state of the settings to the host CPU. verification Information sent includes the coordinate calculation method, the data output mode, and the output rate. Interface diagnostic function Interface verification Uses arbitrary data to verify whether communication between the controller and the host CPU is functioning normally. Menu area function Menu area registration A menu area can be registered at an arbitrary location. Up to 24 menu items can be registered. Reference value setup function Matching positions Accepts A/D values and reference coordinate values from the host CPU for use in normalizing the A/D converted data and in matching positions. Duplicate coordinate processing Duplicate coordinates are not Compares the coordinate values transferred in the previous operation with the function transmitted current coordinate data and if the coordinate values are the same (i.e., if they are duplicate coordinate values) the LC19001A010 does not send the current coordinate data. (Only valid in stream mode) Timeout function Sets the timeout time If the required data was not received within the preset timeout time, the controller sends F3h to the host CPU. Noise exclusion function Sets the parameters used to Normally set to be about 10% of the number of pixels. (only valid in normalized reduce noise levels mode) Initial values: X = 64, Y = 48 Lock function Starts and clears the lock If a lock command is issued, after transmitting the coordinate data currently being function transmitted, the controller halts transmission. The lock state is cleared by sending a lock clear command. Coordinate Data Output Format: 4-byte structure Ph 0 0 P X3 X2 X1 X0 0 0 X9 X8 X7 X6 X5 X4 0 0 0 0 Y3 Y2 Y1 Y0 0 0 Y9 Y8 Y7 Y6 Y5 Y4 bit 7 6 5 4 3 2 1 0 First byte Second byte Third byte Fourth byte
- Ph: Phase bit, always set to 1.
- 0: Zero bits, always cleared to 0.
- X0 to X9:Horizontal axis value (X) as a binary value (X9 is the high-order bit)
- Y0 to Y9:Vertical axis value (Y) as a binary value (Y9 is the high-order bit)
- P: Pen status (pen down = 1, pen up = 0) – When the pen is in the up state, the LC19001A010 sends a single byte with the value 80 h. Menu Area Number Output Format: 1-byte structure Ph 1 0 M4 M3 M2 M1 M0 bit 7 6 5 4 3 2 1 0 First byte
- Ph: Phase bit, always set to 1.
- 1: One bit, always set to 1.
- 0: Zero bit, always cleared to 0.
- M0 to M4:Menu number M (range: 1 to 24) as a binary value (M4 is the high-order bit) – When the pen is in the up state, the LC19001A010 sends a single byte with the value 80 h. Note : Coordinate data and menu area data can be differentiated by inspecting bit 6. (See the data format descriptions above.)
No. 5560-8/8 LC19001A010 This catalog provides information as of October, 1996. Specifications and information herein are subject to change without notice. n No products described or contained herein are intended for use in surgical implants, life-support systems, aerospace equipment, nuclear power control systems, vehicles, disaster/crime-prevention equipment and the like, the failure of which may directly or indirectly cause injury, death or property loss. n Anyone purchasing any products described or contained herein for an above-mentioned use shall: À Accept full responsibility and indemnify and defend SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors and all their officers and employees, jointly and severally, against any and all claims and litigation and all damages, cost and expenses associated with such use: \` Not impose any responsibility for any fault or negligence which may be cited in any such claim or litigation on SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors or any of their officers and employees jointly or severally. n Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for volume production. SANYO believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use or any infringements of intellectual property rights or other rights of third parties. External Switch Settings Pin N o. 46 Frequency (MHz) CK 10 L 8* H Operating frequency Pin N o. 43 44 45 Mode Baud rate (bps) BR1 BR2 BR3 0 1200 L L L 1 2400 H L L 2 4800 L H L 3 9600 L L H 4 19200 H H H Communication speed (transfer rate) Pin N o. 39 40 41 42 Data length Parity Stop bits T1 T2 T3 T4 None
1 L L L H
2 L L L L
1 L H L L
2 L H L H
1 L H H L
2 L H H H
Note: Can not be used at 19200 bps.