STA2051
32-bit single chip baseband controller
for GPS and telematic applications
Data Brief
Features
■ Suitable for automotive applications
■ ARM7TDMI 16/32 bit RISC CPU based host
microcontroller.
TQFP64 TQFP144
■ Complete embedded memory system:
– Flash 256 KB + 16 KB (100K
erasing/programming cycles) ■ 16-bit watchdog timer with 8 bits prescaler for
– RAM 64 KB system reliability and integrity.
■ External memory interface provides glueless ■ CAN module compliant with the CAN
support for up to four banks of external SRAM,
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specification V2.0 part B (active). The bit rate
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Flash, ROM. can be programmed up to 1 MBaud.
■ 12 channel GPS correlation DSP: ■ Four16-bit programmable timers with 7 bit
– no TCXO required
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prescaler, up to two input capture/output
compare, one pulse counter function, one
■
– RTCA-SC159 / WAAS / EGNOS support
GPS performance
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PWM channel with selectable frequency each.
– accuracy: stand alone <30m; differential
■
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4 channels 12-bit sigma-delta analog to digital
converter, single channel or multi channel
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<1m; surveying <1cm
– time to first fix: autonomous start 90s; cold
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conversion modes, single-shotor continuous
conversion modes, sample rate1KHz (4 KHz
■
start 45s; warm start 7s; obscuration 1s.
CMOS M8T (0.18 µm) technology. ■
s owhen single channel), conversion range 0-2.5V.
Three serial communication interfaces (UART)
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■ -40°C to 85°C operating temperature range. allow full duplex, asynchronous,
■ Packaged in TQFP 64-pin or 144-pin communications with external devices,
■ Power supply:
) - independently programmable TX and RX baud
rates up to 625K baud.
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– 2.7V to 3.6V operating supply range for
ct
input/output periphery ■ One UART adapted to suit smart card interface
– 3V to 3. V operating supply range for A/ D needs, for asynchronous SC as defined by ISO
Converter reference
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7816-3; it includes SC clock generation..
Two serial peripheral interfaces (SPI) allow full
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– 1.8V operating supply range for core supply
provided either by internal voltage regulator duplex, synchronous communications with
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with external stabilization capacitor, or by
external supply for higher power efficiency.
external devices, master or slave operation,
max baud rate: 8Mb/s. One SPI may be used
■
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0-66MHz internal clock frequency managed by as multimedia card interface.
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a reset and clock control unit; the unitisable to ■ Two I2C interfaces provide multi-master and
provide low power modes (Wait, Slow, Stop, slave functions, support normal and fast I2C
b s Standby) and to generate the internal clock from
the external reference through integrated PLL.
mode (400 kHz), 7/10 bit addressing modes.
One I2C interface is multiplexed with one SPI,
O ■ 48 programmable general purpose I/O, each
pin programmable independently as digital
■
so either 2xSPI+1xI2C or 1xSPI+2xI2C may be
used at a time.
USB unit V1.1 compliant, software configurable
input or digital output; 40 (30 in TQFP64) are
multiplexed with peripheral functions; 16 can end point setting, USB Suspend/Resume
generate an interrupt on input level/transition support. (TQFP144 only)
■ High Level Data Link Controller (HDLC) unit
■ Real time clock module with 3 2 kHz low power supports full duplex operating mode, NRZ,
oscillator and separate power supply to NRZI, FM0 and MANCHESTER modes,
continue running during stand-by mode. internal 8bit Baud Rate Generator.
December 2008 Rev 3 1/7
For further information contact your local STMicroelectronics sales office. www.st.com
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STA2051
1 System block and pin connection diagrams
Figure 1. System block diagram
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STA2051
Figure 2. TQFP144 pin connection diagram (top view)
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STA2051
Figure 3. LQFP64 pin connection diagram (top view)
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STA2051
2 Ordering information
Table 1. Device summary
Order code Package Packing
STA2051 TQFP64 Tray
STA2051TR TQFP64 Tape and reel
STA2051E TQFP144 Tray
STA2051ETR TQFP144 Tape and reel
E-STA2051 TQFP64 Tray
E-STA2051TR TQFP64 Tape and reel
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3 Revision history
Table 2. Document revision history
Date Revision Changes
24-Sep-1994 1 Initial release.
25-Jan-2004 2 Added a new feature (first bullet).
Reformatted document.
05-Dec-2008 3
Updated Section 2: Ordering information.
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STA2051
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