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The ST16C2550 (C2550) is a dual universal asynchronous receiver and transmitter (UART). The ST16C2550 is an improved version of the PC16550 UART with higher operating speed and faster access times. The C2550 provides enhanced UART functions with 16 byte FIFO’s, a modem control interface, and data rates up to 4 Mbps. Onboard status registers provide the user with error indications and operational status. System interrupts and modem control features may be tailored by external software to meet specific user requirements. Independent programmable baud rate generators are provided to select transmit and receive clock rates from 50 bps to 4 Mbps. The Baud Rate Generator can be configured for either crystal or external clock input. An internal loopback capability allows onboard diagnostics. The C2550 is available in a 44-pin PLCC and 48-pin TQFP packages. The C2550 is fabricated in an advanced CMOS process capable of operating from 2.97 volt to 5.5 volt power supply.

Features:

Pin-to-pin compatible to Exar’s ST16C2450, XR16L2550 and XR16L2750

Pin-to-pin compatible to TI’s TL16C752B on the 48-TQFP package

Pin alike XR16C2850 48-TQFP package but without CLK8/16, CLKSEL and HDCNTL inputs

Brand/Series	ST16 Series
Data Rate	4 Mbit/s
Dimensions	7.1 x 7.1 x 1.05 mm
Height	0.041" (1.05mm)
Length	0.279" (7.1mm)
Mounting Type	Surface Mount
Number of Channels per Chip	2
Number of Pins	48
Package Type	TQFP
Receive FIFO	16 B
Standards	RS232, RS485
Temperature, Operating, Maximum	+70 °C
Temperature, Operating, Minimum	0 °C
Temperature, Operating, Range	0 to +70 °C
Transmit FIFO	16
Voltage, Operating	2.7 to 5.5 V
Width	0.28" (7.1mm)
关键词

Brand/Series ST16 Series  Exar Brand/Series ST16 Series  Universal Asynchronous Receivers & Transmitters Brand/Series ST16 Series  Exar Universal Asynchronous Receivers & Transmitters Brand/Series ST16 Series   Data Rate 4 Mbit/s  Exar Data Rate 4 Mbit/s  Universal Asynchronous Receivers & Transmitters Data Rate 4 Mbit/s  Exar Universal Asynchronous Receivers & Transmitters Data Rate 4 Mbit/s   Dimensions 7.1 x 7.1 x 1.05 mm  Exar Dimensions 7.1 x 7.1 x 1.05 mm  Universal Asynchronous Receivers & Transmitters Dimensions 7.1 x 7.1 x 1.05 mm  Exar Universal Asynchronous Receivers & Transmitters Dimensions 7.1 x 7.1 x 1.05 mm   Height 0.041" (1.05mm)  Exar Height 0.041" (1.05mm)  Universal Asynchronous Receivers & Transmitters Height 0.041" (1.05mm)  Exar Universal Asynchronous Receivers & Transmitters Height 0.041" (1.05mm)   Length 0.279" (7.1mm)  Exar Length 0.279" (7.1mm)  Universal Asynchronous Receivers & Transmitters Length 0.279" (7.1mm)  Exar Universal Asynchronous Receivers & Transmitters Length 0.279" (7.1mm)   Mounting Type Surface Mount  Exar Mounting Type Surface Mount  Universal Asynchronous Receivers & Transmitters Mounting Type Surface Mount  Exar Universal Asynchronous Receivers & Transmitters Mounting Type Surface Mount   Number of Channels per Chip 2  Exar Number of Channels per Chip 2  Universal Asynchronous Receivers & Transmitters Number of Channels per Chip 2  Exar Universal Asynchronous Receivers & Transmitters Number of Channels per Chip 2   Number of Pins 48  Exar Number of Pins 48  Universal Asynchronous Receivers & Transmitters Number of Pins 48  Exar Universal Asynchronous Receivers & Transmitters Number of Pins 48   Package Type TQFP  Exar Package Type TQFP  Universal Asynchronous Receivers & Transmitters Package Type TQFP  Exar Universal Asynchronous Receivers & Transmitters Package Type TQFP   Receive FIFO 16 B  Exar Receive FIFO 16 B  Universal Asynchronous Receivers & Transmitters Receive FIFO 16 B  Exar Universal Asynchronous Receivers & Transmitters Receive FIFO 16 B   Standards RS232, RS485  Exar Standards RS232, RS485  Universal Asynchronous Receivers & Transmitters Standards RS232, RS485  Exar Universal Asynchronous Receivers & Transmitters Standards RS232, RS485   Temperature, Operating, Maximum +70 °C  Exar Temperature, Operating, Maximum +70 °C  Universal Asynchronous Receivers & Transmitters Temperature, Operating, Maximum +70 °C  Exar Universal Asynchronous Receivers & Transmitters Temperature, Operating, Maximum +70 °C   Temperature, Operating, Minimum 0 °C  Exar Temperature, Operating, Minimum 0 °C  Universal Asynchronous Receivers & Transmitters Temperature, Operating, Minimum 0 °C  Exar Universal Asynchronous Receivers & Transmitters Temperature, Operating, Minimum 0 °C   Temperature, Operating, Range 0 to +70 °C  Exar Temperature, Operating, Range 0 to +70 °C  Universal Asynchronous Receivers & Transmitters Temperature, Operating, Range 0 to +70 °C  Exar Universal Asynchronous Receivers & Transmitters Temperature, Operating, Range 0 to +70 °C   Transmit FIFO 16  Exar Transmit FIFO 16  Universal Asynchronous Receivers & Transmitters Transmit FIFO 16  Exar Universal Asynchronous Receivers & Transmitters Transmit FIFO 16   Voltage, Operating 2.7 to 5.5 V  Exar Voltage, Operating 2.7 to 5.5 V  Universal Asynchronous Receivers & Transmitters Voltage, Operating 2.7 to 5.5 V  Exar Universal Asynchronous Receivers & Transmitters Voltage, Operating 2.7 to 5.5 V   Width 0.28" (7.1mm)  Exar Width 0.28" (7.1mm)  Universal Asynchronous Receivers & Transmitters Width 0.28" (7.1mm)  Exar Universal Asynchronous Receivers & Transmitters Width 0.28" (7.1mm)