PXAS30KBA
XA 16-bit microcontroller 32 K/1 K OTP/ROM/ROMless, 8-channel 8-bit A/D, low voltage 2.7 V.5.5 V, I2C, 2 UARTs, 16 MB address range
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), I2C interface, dual
UARTs, and multiple general purpose I/O ports, it is suited for
general multipurpose high performance embedded control 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.
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.
Three standard counter/timers with enhanced features. All timers
have a toggle output capability.
Watchdog timer.
5-channel 16-bit Programmable Counter Array (PCA).
I2C-bus serial I/O port with byte-oriented master and slave
functions.
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.
50 I/O pins, each with 4 programmable output configurations.
30 MHz operating frequency at 2.7–5.5 V VDD.
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.
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