16C450
16C450 is ST16C450 manufactured by Exar.
DESCRIPTION
The ST16C450 is a universal asynchronous receiver and transmitter. The ST16C450 is an improved version of the NS16450 UART with higher operating speed and lower access time. A programmable baud rate generator is provided to select transmit and .. receive clock rates from 50 Bps to 1.5 Mbps. The ST16C450 on board status registers provides the error conditions, type and status of the transfer operation being performed. Included is plete MODEM control capability, and a processor interrupt system that may be software tailored to the user’s requirements. The ST16C450 provides internal loopback capability for on board diagnostic testing. The ST16C450 is available in 40 pin PDIP, 44 pin PLCC, and 48 pin TQFP packages. It is fabricated in an advanced CMOS process to achieve low drain power and high speed requirements.
PLCC Package
-DSR 41 -CTS 40 39 38 37 36 35 VCC N.C. -CD 42 -RI 43 D4 D3 D2 D1 D0
D5 D6 D7 RCLK RX N.C. TX CS0 CS1 -CS2 -BAUDOUT
7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28
RESET -OP1 -DTR -RTS -OP2 N.C. INT N.C. A0 A1 A2
ST16C450CJ44
34 33 32 31 30 29
XTAL1
XTAL2
-IOW
-IOR
-DDIS
N.C.
FEATURES
- Pin to pin and functionally patible to the Industry Standard 16450
- 2.97 to 5.5 volt operation
- 1.5 Mbps transmit/receive operation (24MHz)
- Programmable word lengths (5, 6, 7, 8)
- Even, odd, force, or no parity generation and detection
- Independent transmit and receive control
- Standard modem interface
- Low operating current ( 1.2m A typ.)
ORDERING INFORMATION
Part number Package Operating temperature Device Status
ST16C450CP40 ST16C450CJ44 ST16C450CQ48 ST16C450IP40 ST16C450IJ44 ST16C450IQ48
40-Lead 44-Lead 48-Lead 40-Lead 44-Lead 48-Lead
PDIP PLCC TQFP PDIP PLCC TQFP
0° C to + 70° C 0° C to + 70° C 0° C to + 70° C -40° C to + 85° C -40° C to + 85° C -40° C to + 85° C
Active. See the ST16C450CQ48 for new designs. Active Active Active. See the ST16C450IQ48 for new designs. Active...
