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SCC2698B PDF даташит

Спецификация SCC2698B изготовлена ​​​​«NXP Semiconductors» и имеет функцию, называемую «Enhanced octal universal asynchronous receiver/transmitter Octal UART».

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Номер произв SCC2698B
Описание Enhanced octal universal asynchronous receiver/transmitter Octal UART
Производители NXP Semiconductors
логотип NXP Semiconductors логотип 

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SCC2698B Даташит, Описание, Даташиты
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INTEGRATED CIRCUITS
SCC2698B
Enhanced octal universal asynchronous
receiver/transmitter (Octal UART)
Product specification
Supersedes data of 1998 Sep 04
2000 Jan 31
Philips
Semiconductors









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SCC2698B Даташит, Описание, Даташиты
Philips Semiconductors
www.DataSheet4U.com
Enhanced octal universal asynchronous
receiver/transmitter (Octal UART)
Product specification
SCC2698B
DESCRIPTION
The SCC2698B Enhanced Octal Universal Asynchronous
Receiver/Transmitter (Octal UART) is a single chip MOS-LSI
communications device that provides eight full-duplex asynchronous
receiver/transmitter channels in a single package. It is fabricated
with CMOS technology which combines the benefits of high density
and low power consumption.
The operating speed of each receiver and transmitter can be
selected independently as one of 26 fixed baud rates, a 16X clock
derived from a programmable counter/timer, or an external 1X or
16X clock. The baud rate generator and counter/timer can operate
directly from a crystal or from external clock inputs. The ability to
independently program the operating speed of the receiver and
transmitter make the Octal UART particularly attractive for
dual-speed channel applications such as clustered terminal
systems.
The receiver is quadruple buffered to minimize the potential of
receiver overrun or to reduce interrupt overhead in interrupt driven
systems. In addition, a handshaking (RTS/CTS) capability is
provided to disable a remote UART transmitter when the receiver
buffer is full.
The UART provides a power-down mode in which the oscillator is
frozen but the register contents are stored. This results in reduced
power consumption on the order of several magnitudes. The Octal
UART is fully TTL compatible and operates from a single +5V power
supply.
The SCC2698B is an upwardly compatible version of the 2698A
Octal UART. In PLCC packaging, it is enhanced by the addition of
receiver ready or FIFO full status outputs, and transmitter empty
status outputs for each channel on 16 multipurpose I/O pins. The
multipurpose pins of the 2698B RIO pins, thus DMA and modem
control is provided.
FEATURES
Eight full-duplex independent asynchronous receiver/transmitters
Quadruple buffered receiver data register
Programmable data format:
– 5 to 8 data bits plus parity
– Odd, even, no parity or force parity
– 1, 1.5 or 2 stop bits programmable in 1/16-bit increments
Baud rate for the receiver and transmitter selectable from:
– 26 fixed rates: 50 to 38.4K baud
Non-standard rates to 115.2K baud
– User-defined rates from the programmable counter/timer
associated with each of four blocks
– External 1x or 16x clock
Parity, framing, and overrun error detection
False start bit detection
Line break detection and generation
Programmable channel mode
– Normal (full-duplex), automatic echo, local loop back, remote
loopback
Four multi-function programmable 16-bit counter/timers
Four interrupt outputs with eight maskable interrupting conditions
for each output
Receiver ready/FIFO full and transmitter ready status available on
16 multi-function pins in PLCC package
On-chip crystal oscillator
TTL compatible
Single +5V power supply with low power mode
Eight multi-purpose output pins
Sixteen multi-purpose I/O pins
Sixteen multi-purpose Input pins with pull-up resistors
ORDERING INFORMATION
PACKAGES
COMMERCIAL
VCC = +5V +5%, TA = 0°C to +70°C
INDUSTRIAL
VCC = +5V +5%, TA = –40°C to +85°C
84-Pin Plastic Leaded Chip Carrier (PLCC)
SCC2698BC1A84
SCC2698BE1A84
NOTE: Pin Grid Array (PGA) package version is available from Philips Components Military Division.
DWG #
SOT189-3
ABSOLUTE MAXIMUM RATINGS1
SYMBOL
PARAMETER
RATING
UNIT
TA
TSTG
VCC
VS
Operating ambient temperature range2
Storage temperature range
Voltage from VDD to GND3
Voltage from any pin to ground3
Note 4
–65 to +150
–0.5 to +7.0
–0.5 to VCC +0.5
oC
oC
V
V
PD Power dissipation
1W
NOTES:
1. Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only and
functional operation of the device at these or any other condition above those indicated in the operation section of this specification is not
implied.
2. For operating at elevated temperatures, the device must be derated based on +150°C maximum junction temperature.
3. This product includes circuitry specifically designed for the protection of its internal devices from damaging effects of excessive static
charge. Nonetheless, it is suggested that conventional precautions be taken to avoid applying any voltages larger than the rated maxima.
4. Parameters are valid over specified temperature range. See ordering information table for applicable temperature range and operating
supply range.
2000 Jan 31
2 853-1127 23062









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SCC2698B Даташит, Описание, Даташиты
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Enhanced octal universal asynchronous
receiver/transmitter (Octal UART)
Product specification
SCC2698B
PIN CONFIGURATIONS
VCC 1
X2 2
X1/CLK 3
D0 4
D1 5
D2 6
NC 7
D3 8
NC 9
D4 10
NC 11
D5 12
RESET 13
D6 14
D7 15
CEN 16
WRN 17
GND 18
RDN 19
A0 20
A1 21
A2 22
A3 23
A4 24
A5 25
MP10a 26
MP10b 27
INTRAN 28
INTRBN 29
MP10c 30
MP10d 31
TxDb 32
64 RxDa
63 TxDa
62 RxDc
61 TxDc
60 RxDe
59 MP10h
58 MP10g
57 RxDg
56 TxDe
55 TxDg
54 MPOa
53 MPOc
52 MPOe
51 MPOg
50 GND
49 MP10f
48 MP10e
47 RxDh
45 RxDf
45 RxDd
44 RxDb
43 TxDh
42 MPOh
41 Test input
40 MPOf
39 TxDf
38 MPOd
37 TxDd
36 INTRDN
35 INTRCN
34 VCC
33 MPOb
11 1 75
12 74
PLCC
32
33
54
53
Pin Function
1 TxDa
2 MPP2g
3 RxDa
4 MPP2h
5 VCC
6 X2
7 X1/CLK
8 D0
9 D1
10 D2
11 D3
12 D4
13 D5
14 MPI1a
15 RESET
16 D6
17 D7
18 CEN
19 WRN
20 GND
21 MPI1b
22 RDN
23 A0
24 MPP1a
25 A1
26 MPP1b
27 A2
28 MPP2a
Pin Function
29 A3
30 MPP2b
31 A4
32 A5
33 MPI0a
34 MPI0b
35 INTRAN
36 INTRBN
37 MPI0c
38 MPI1c
39 MPI0d
40 MPI1d
41 TxDb
42 MPP1c
43 MPOb
44 MPP1d
45 VCC
46 INTRCN
47 INTRDN
48 MPP2c
49 TxDd
50 MPP2d
51 MPOd
52 TxDf
53 MPOf
54 MPOh
55 TxDh
56 RxDb
Pin Function
57 RxDd
58 RxDf
59 RxDh
60 MPI1e
61 MPI0e
62 MPI1f
63 MPI0f
64 MPP1e
65 GND
66 MPP1f
67 MPOg
68 MPP2e
69 MPOe
70 MPP2f
71 MPOc
72 MPOa
73 TxDg
74 TxDe
75 RxDg
76 MPI0g
77 MPI0h
78 MPI1g
79 RxDe
80 MPIh
81 TxDc
82 MPP1g
83 RxDc
84 MPP1h
SD00184
Figure 1. Pin Configurations
2000 Jan 31
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