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ST16C554DIQ64 数据表(PDF) 1 Page - Exar Corporation

部件名 ST16C554DIQ64
功能描述  QUAD UART WITH 16-BYTE FIFOS
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制造商  EXAR [Exar Corporation]
网页  http://www.exar.com
标志 EXAR - Exar Corporation

ST16C554DIQ64 数据表(HTML) 1 Page - Exar Corporation

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EXAR Corporation, 48720 Kato Road, Fremont, CA 94538 • (510) 668-7000 • FAX (510) 668-7017
ST16C554/554D
ST68C554
Rev. 3.10
PLCC Package
QUAD UART WITH 16-BYTE FIFO’S
DESCRIPTION
The ST16C554D is a universal asynchronous receiver
and transmitter (UART) with a dual foot print interface.
The 554D is an enhanced UART with 16 byte FIFOs,
receive trigger levels and data rates up to 1.5Mbps.
Onboard status registers provide the user with error
indications and operational status, modem interface
control. System interrupts may be tailored to meet
user requirements. An internal loopback capability
allows onboard diagnostics. The 554D is available in
64 pin TQFP, and 68 pin PLCC packages. The 68 pin
PLCC package offer an additional 68 mode which
allows easy integration with Motorola, and other popu-
lar microprocessors. The ST16C554CQ64 (64 pin)
offers three state interrupt control while the
ST16C554DCQ64 provides constant active interrupt
outputs. The 64 pin devices do not offer TXRDY/
RXRDY outputs. The 554D combines the package
interface modes of the 16C554 and 68C554 series on
a single integrated chip.
FEATURES
• Compatibility with the Industry Standard
ST16C454, ST68C454, ST68C554, TL16C554
• 1.5 Mbps transmit/receive operation (24MHz)
• 16 byte transmit FIFO
• 16 byte receive FIFO with error flags
• Independent transmit and receive control
• Software selectable Baud Rate Generator
• Four selectable Receive FIFO interrupt trigger
levels
• Standard modem interface
ORDERING INFORMATION
Part number
Pins Package Operatingtemperature
ST16C554DCJ68
68
PLCC
0° C to + 70° C
ST16C554DCQ64 64
TQFP
0° C to + 70° C
ST16C554CQ64
64
TQFP
0° C to + 70° C
ST16C554DIJ68
68
PLCC
-40° C to + 85° C
ST16C554DIQ64
64
TQFP
-40° C to + 85° C
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
-DSRA
-CTSA
-DTRA
VCC
-RTSA
INTA
-CSA
TXA
-IOW
TXB
-CSB
INTB
-RTSB
GND
-DTRB
-CTSB
-DSRB
-DSRD
-CTSD
-DTRD
GND
-RTSD
INTD
-CSD
TXD
-IOR
TXC
-CSC
INTC
-RTSC
VCC
-DTRC
-CTSC
-DSRC
ST16C554DCJ68
16 MODE


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