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PDF EI16C554 Data sheet ( Hoja de datos )
| Número de pieza | EI16C554 | |
| Descripción | QUAD UART | |
| Fabricantes | IMP | |
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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 loop-
back 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
DSRAÔ 10
CTSAÔ 11
DTRAÔ 12
VCC 13
RTSAÔ 14
INTA 15
CSAÔ 16
TXA 17
IOWÔ 18
TXB 19
CSBÔ 20
INTB 21
RTSBÔ 22
GND 23
DTRB 24
CTSDÔ 25
DSRBÔ 26
Ei16C554
60 DSRDÔ
59 CTSDÔ
58 DTRDÔ
57 GND
56 RTSDÔ
55 INTD
54 CSDÔ
53 TXD
52 IORÔ
51 TXC
50 CSCÔ
49 INTC
48 RTSCÔ
47 VCC
46 DTRCÔ
45 CTSCÔ
44 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 DSRD*
47 CTSD*
46 DTRD*
45 GND
44 RTSD*
43 INTD
42 CSD*
41 TXD
40 IOR*
39 TXC
38 CSC*
37 INTC
36 RTSC*
35 VCC
34 DTRC*
33 CTSC*
68-PIN PLCC
64-PIN TQFP
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)
1 page | ||
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| PDF Descargar | [ Datasheet EI16C554.PDF ] | |
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