SANYO LC19001A010 Datasheet

Overview

The LC19001A010 provides rapid and precise position
detection for the resistive membrane pressure-sensitive
digitizers used in PDAs and other portable information­processing equipment. It implements, in a single chip, the
coordinate readout processing required for pen input
operations.

This controller provides the following functions: digitizer
voltage A/D conversion, noise exclusion, conversion to
display coordinates, and data transfer to the host CPU.

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

Pin Assignment

Block Diagram

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 MOD1 In GND
11 X0 Clock oscillator connection
12 X1 Clock oscillator connection
13 V

SS

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

Pin Functions

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