Philips Semiconductors
Preliminary specification
XA 16-bit microcontroller
32K/1K OTP/ROM/ROMless, 8-channel 8-bit A/D, low voltage (2.7 V–5.5 V),
I
2
C, 2 UARTs, 16 MB address range
XA-S3
GENERAL DESCRIPTION
The XA-S3 device is a member of Philips Semiconductors’ XA
(eXtended Architecture) family of high performance 16-bit
single-chip microcontrollers.
The XA-S3 device combines many powerful peripherals on one
chip. With its high performance A/D converter, timers/counters,
watchdog, Programmable Counter Array (PCA), I
2
C interface, dual
UARTs, and multiple general purpose I/O ports, it is suited for
general multipurpose high performance embedded control functions.
•
Three standard counter/timers with enhanced features. All timers
have a toggle output capability.
•
Watchdog timer.
•
5-channel 16-bit Programmable Counter Array (PCA).
•
I
2
C-bus serial I/O port with byte-oriented master and slave
functions.
Specific features of the XA-S3
•
2.7 V to 5.5 V operation.
•
32 K bytes of on-chip EPROM/ROM program memory.
•
1024 bytes of on-chip data RAM.
•
Supports off-chip addressing up to 16 megabytes (24 address
lines). A clock output reference is added to simplify external bus
interfacing.
•
Two enhanced UARTs with independent baud rates.
•
Seven software interrupts.
•
Active low reset output pin indicates all reset occurrences
(external reset, watchdog reset and the RESET instruction). A
reset source register allows program determination of the cause of
the most recent reset.
•
High performance 8-channel 8-bit A/D converter with automatic
channel scan and repeated read functions. Completes a
conversion in 4.46 microseconds at 30 MHz. Alternate operating
mode allows 10-bit conversion results.
•
50 I/O pins, each with 4 programmable output configurations.
•
30 MHz operating frequency at 2.7–5.5 V V
DD
.
•
Power saving operating modes: Idle and Power-down. Wake-up
from power-down via an external interrupt is supported.
•
68-pin PLCC and 80-pin PQFP packages.
ORDERING INFORMATION
ROMless
PXAS30KBA
PXAS30KBBE
PXAS30KFA
PXAS30KFBE
ROM
PXAS33KBA
PXAS33KBBE
PXAS83XFA
PXAS83XFBE
EPROM
PXAS37KBA
PXAS37KBBE
PXAS31KFA
PXAS31KFBE
OTP
OTP
OTP
OTP
TEMPERATURE RANGE (°C)
AND PACKAGE
0 to +70, Commercial
68-pin Plastic Leaded Chip Carrier
0 to +70, Commercial
80-pin Plastic Low Profile Quad Flat Pack
–40°C to +85°C, Industrial 68-pin Plastic
Leaded Chip Carrier
–40°C to +85°C, Industrial 80-pin Plastic Low
Profile Quad Flat Pack
FREQ.
(MHz)
30
30
30
30
DRAWING
NUMBER
SOT188-3
SOT315-1
SOT188-3
SOT315-1
2000 Mar 09
2
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