參數(shù)資料
型號： ST16654
廠商： Exar Corporation
英文描述： QUAD UART WITH 64-BYTE FIFO AND INFRARED (IrDA) ENCODER/DECODER
中文描述： 四UART的64字節(jié)FIFO和紅外線（IrDA）編碼/解碼器
文件頁數(shù)： 1/49頁
文件大小： 444K
代理商： ST16654
5-65
ST16C654/654D
QUAD UART WITH 64-BYTE FIFO AND
INFRARED (IrDA) ENCODER/DECODER
Rev. 4.10
DESCRIPTION
The ST16C654
*
1
is a universal asynchronous receiver and transmitter (UART) with a dual foot print interface
compatible with the ST16C554 and ST68C554. The 654 is an enhanced UART with 64 byte FIFOs, automatic
hardware/software flow control, 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 654 is available in 64 pin TQFP,
68 pin PLCC, and 100 pin QFP packages. The 64 pin package offers the 16 interface mode which is compatible
with the industry standard ST16C554. The 68 and 100 pin packages offer an additional 68 mode which allows easy
integration with Motorola, and other popular microprocessors. The ST16C654CQ64 (64 pin) offers three state
interrupt control while the ST16C654DCQ64 provides constant active interrupt outputs. The 64 pin devices do
not offer TXRDY/RXRDY outputs or the default clock select option (CLKSEL). The 100 pin packages offer faster
channel status access by providing separate outputs for TXRDY and RXRDY, offer separate Infrared TX outputs
and a musical instrument clock input (MIDICLK). The 654 combines the package interface modes of the 16C454/
554 and 68/C454/554 series on a single integrated chip.
Part number
ST16C654IJ68
ST16C654IQ64
ST16C654DIQ64
ST16C654IQ100
Note *1: Patent Pending
Pins
68
64
64
100
Package Operating temperature
PLCC
-40° C to + 85° C
TQFP
-40° C to + 85° C
TQFP
-40° C to + 85° C
QFP
-40° C to + 85° C
FEATURES
·
Compatibility with the Industry Standard
ST16C454/554, ST68C454/554, TL16C554
·
1.5 Mbps transmit/receive operation (24MHz)
·
64 byte transmit FIFO
·
64 byte receive FIFO with error flags
·
Automatic software/hardware flow control
·
Programmable Xon/Xoff characters
·
Independent transmit and receive control
·
Software selectable Baud Rate Generator pre-
scaleable clock rates of 1X, 4X.
·
Four selectable Transmit/Receive FIFO interrupt
trigger levels
·
Standard modem interface or infrared IrDA en-
coder/decoder interface
·
Software flow control turned off optionally by any
(Xon) RX character
·
Independent MIDI interface on 100 pin packages
·
100 pin packages offer internal register FIFO
monitoring and separate IrDA TX outputs
·
Sleep mode ( 200
m
A stand-by)
ORDERING INFORMATION
Part number
ST16C654CJ68
ST16C654CQ64
ST16C654DCQ64
ST16C654CQ100
Pins
68
64
64
100
Package Operating temperature
PLCC
0° C to + 70° C
TQFP
0° C to + 70° C
TQFP
0° C to + 70° C
QFP
0° C to + 70° C
PLCC Package
9
8
7
6
5
4
3
2
1
6
6
6
6
6
6
6
6
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
2
2
2
3
3
3
3
3
3
3
3
3
3
4
4
4
4
-DSRA
-CTSA
-DTRA
VCC
-RTSA
INTA
-CSA
TXA
-IOW
TXB
-CSB
INTB
-RTSB
GND
-DTRB
-CTSB
-DSRB
-
-
R
C
1
A
A
A
X
X
R
-
-
G
R
-
-
-DSRD
-CTSD
-DTRD
GND
-RTSD
INTD
-CSD
TXD
-IOR
TXC
-CSC
INTC
-RTSC
VCC
-DTRC
-CTSC
-DSRC
-
-
R
G
D
D
D
D
D
D
D
D
I
V
R
-
-
ST16C654CJ68
16 MODE
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