2
2
28
8
8
P
P
PI
I
IN
N
N
S
S
SO
O
OI
I
IC
C
C
A
A
AN
N
NA
A
AL
L
LO
O
OG
G
G
R
R
RE
E
ES
S
SI
I
IS
S
ST
T
TI
I
IV
V
VE
E
E
U
U
UN
N
NI
I
IV
V
VE
E
ER
R
RS
S
SA
A
AL
L
L
T
T
TO
O
OU
U
UC
C
CH
H
H
S
S
SC
C
CR
R
RE
E
EE
E
EN
N
N
C
C
CO
O
ON
N
NT
T
TR
R
RO
O
OL
L
LL
L
LE
E
ER
R
R
I
I
IC
C
C
Auto Detect RS-232 and USB for all 4, 5, and 8 wire resistive touch screens
Product Description: Electrical Specifications:
TSHARC A2
28 PIN SOIC IC
Touch Screens:
Resolution:
Communications:
Com Protocol:
Package Type:
Sample Rate:
Baud Rate:
Voltage Required:
Environmental:
Part Number:
Driver Support:
Dynamically decode all 4, 5 and 8 wire touch screen regardless
of manufacturer or construction.
12-bit (4,096 x 4,096)
Auto Detect: RS-232 and USB communication
Hampshire Standard
28-Pin, plastic, 300mil, SOIC
Dynamic sample rate algorithm: 25 - 125 pts/sec
or fixed > 100pts/sec.
9600 Baud by default, other user-configurable options available
5.0Vdc, 3.3 Vdc, or from port for USB
Storage: -40c - 85c, Operating: -40c – 85c, Industrial Rated
HSA2-040SIA
Hampshire standard drivers included
The A2 touch screen 28 pin SOIC touch screen controller IC
is a low cost, high performance, 12 bit touch screen controller
chip which will concurrently decode all seven industry
standard 4, 5 and 8 wire resistive touch screens regardless
of manufacturer or construction for RS-232 or USB
communication in an industrial rated IC package.
The touch screen auto-detect / auto-configure features of this
controller enables it to “on the fly” configure itself for any of
the industries standard 4, 5, or 8 wire resistive touch screen
pin-outs. RS-232 or USB communications will also be auto-
detected and configured dynamically.
Hampshire own proprietary Dynamic Sample Rate Algorithm,
will insure that the controller is functioning at the optimum
performance for the specific touch application relative to the
touch screen’s construction and electrical characteristics.
This TSHARC controller IC includes an on-board a 12 bit A -D
converter which supports 12-bit (4,096 x 4,096) resolution.
Hampshire’s Devil Ray controller is the reference design
controller board using the A2 IC. This board may be used for
evaluation of the A2 controller chip or as a standard stock
solution for applications that require a complete board
solution. The Devil Ray controller board supports all seven
4, 5, and 8 wire resistive touch screen pin-outs and includes
all Hampshire device drivers and technical support.
All Hampshire products and associated device drivers are
developed and supported in house by Hampshire engineers.
Custom firmware and drivers are available upon request.
For additional information regarding Hampshire products
please visit: www.hampshirecompany.com
FLEXIBLE UNIVERSAL NEVER OBSOLETE
