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Part: EI16C554
Category:
Communication
-> UARTs
Description: Quad Universal Asynchronous Receiver Transmitter (UART)
Company: IMP, Inc.
Datasheet: Download EI16C554 datasheet File size : 74 kB
Request For quote: Find where to buy EI16C554
Datasheet text preview:
Ei16C554 QUAD UART
Semiconductor, Inc.
FEATURES
· · · · · · · · · · · · 5V Operation Pin to pin and functional compatible to 16C454 16 byte transmit FIFO 16 byte receive FIFO with error flags Modem control signals ( CTSÔ, RTSÔ, DSRÔ, DTRÔ, RIÔ, CDÔ) Programmable character lengths (5, 6, 7, 8) Even, odd, or no parity bit generation and detection Status report register Independent transmit and receive control TTL compatible inputs, outputs Software compatible with 8250 and Ei16C550 460.8 kHz transmit/receive operation with 7.372 MHz crystal or external clock source
DESCRIPTION
The Ei16C554 is Universal Asynchronous Receiver and Transmitter with 16 byte transmit and receive FIFO. A programmable baud rate generator is provided to select transmit and receive clock rates from 50 Hz to 1.5MHz. The Ei16C554 is an improved version of the Ei16C550 UART with higher operating speed and lower access time. The Ei16C554 on board status registers provides the error conditions, type and status of the transfer operation being performed. Included is complete MODEM control capability, and a processor interrupt system that may be software tailored to the user?s requirements. The Ei16C554 provides internal loopback capability for on board diagnostic testing. The Ei16C554 is fabricated in an advanced CMOS process to achieve low drain power and high speed requirements.
Part Numbers May Be Marked With "IMP" or "Ei."
PIN CONFIGURATION
CDAÔ RIAÔ RXA GND D7 D6 D5 D4 D3 D2 D1 D0 INTSEL VCC RXD RIDÔ CDOÔ
9 8 7 6 5 4 3 2 1 68 67 66 65 64 63 62 61
64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49
CDA* RIA* RXA GND D7 D6 D5 D4 D3 D2 D1 D0 VCC RXD RID* CDD*
CDBÔ RIBÔ RXBÔ VCC NC A2 A1 A0 XTAL1 XTAL2 ERSET RXRDYÔ TXRDÔ GND RXC RICÔ CDCÔ
27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43
68-PIN PLCC
11 For additional information, contact IMP, Inc. at 408.432.9100 or visit www.impweb.com
IMP, Inc. acquired Epic products on January 26, 2001. (see press release at http://www.impweb.com/PRESS/PR012601.htm)
DSRB* CDB* RIB* RXB* VCC A2 A1 A0 XTAL1 XTAL2 RESET GND RXC RIC* CDC* DSRC*
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
DSRAÔ CTSAÔ DTRAÔ VCC RTSAÔ INTA CSAÔ TXA IOWÔ TXB CSBÔ INTB RTSBÔ GND DTRB CTSDÔ DSRBÔ
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26
Ei16C554
60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44
DSRDÔ CTSDÔ DTRDÔ GND RTSDÔ INTD CSDÔ TXD IORÔ TXC CSCÔ INTC RTSCÔ VCC DTRCÔ CTSCÔ DSRCÔ
DSRA* CTSA* DTRA* VCC RTSA* INTA CSA* TXA IOW* TXB CSB* INTB RTSB* GND DTRB CTSD*
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Ei16C554
48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33
DSRD* CTSD* DTRD* GND RTSD* INTD CSD* TXD IOR* TXC CSC* INTC RTSC* VCC DTRC* CTSC*
64-PIN TQFP
Others parts begin by ei
EI-1
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