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XR16M780 PDF даташит
| Спецификация XR16M780 изготовлена «Exar Corporation» и имеет функцию, называемую «1.62V TO 3.63V HIGH PERFORMANCE UART». |
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Детали детали
| Номер произв | XR16M780 |
| Описание | 1.62V TO 3.63V HIGH PERFORMANCE UART |
| Производители | Exar Corporation |
| логотип |  |
30 Pages
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XR16M780
1.62V TO 3.63V HIGH PERFORMANCE UART WITH 64-BYTE FIFO
SEPTEMBER 2008
REV. 1.0.0
GENERAL DESCRIPTION
The XR16M7801 (M780) is an enhanced Universal
Asynchronous Receiver and Transmitter (UART) with
64 bytes of transmit and receive FIFOs,
programmable transmit and receive FIFO trigger
levels, automatic hardware and software flow control,
and data rates of up to 16 Mbps at 3.3V, 12.5 Mbps at
2.5V and 7.5 Mbps at 1.8V with 4X data sampling
rate.
The Auto RS-485 Half-Duplex Direction control
feature simplifies both the hardware and software for
half-duplex RS-485 applications. In addition, the
Multidrop mode with Auto Address detection
increases the performance by simplifying the
software routines.
The Independent TX/RX Baud Rate Generator
feature allows the transmitter and receiver to operate
at different baud rates. Power consumption of the
M780 can be minimized by enabling the sleep mode
and PowerSave mode.
The M780 has a 16550 compatible register set that
provide users with operating status and control,
receiver error indications, and modem serial interface
controls. An internal loopback capability allows
onboard diagnostics. The M780 is available in 32-pin
QFN, 48-pin TQFP and 25-pin BGA packages. All
three packages offer both the 16 mode (Intel bus)
interface and the 68 mode (Motorola bus) interface
which allows easy integration with Motorola
processors.
www.DataShNeOeTt4EU: .c1oCmovered by U.S. Patent #5,649,122.
FEATURES
• Pin-to-pin compatible with XR16L580 in 32-QFN
and 48-TQFP packages
• Intel or Motorola Bus Interface select
• 16Mbps maximum data rate
• Programmable TX/RX FIFO Trigger Levels
• TX/RX FIFO Level Counters
• Independent TX/RX Baud Rate Generator
• Fractional Baud Rate Generator
• Auto RTS/CTS Hardware Flow Control
• Auto XON/XOFF Software Flow Control
• Auto RS-485 Half-Duplex Direction Control
• Multidrop mode w/ Auto Address Detect
• Sleep Mode with Automatic Wake-up
• PowerSave mode
• Infrared (IrDA 1.0 and 1.1) mode
• 1.62V to 3.63V supply operation
• Crystal oscillator or external clock input
APPLICATIONS
• Personal Digital Assistants (PDA)
• Cellular Phones/Data Devices
• Battery-Operated Devices
• Global Positioning System (GPS)
• Bluetooth
FIGURE 1. XR16M780 BLOCK DIAGRAM
PwrSave
A2:A0
D 7 :D 0
IO R #
IOW# (R/W#)
CS#
INT (IRQ#)
RESET
(RESET#)
16/68#
Intel or
M o to ro la
Data Bus
Interface
UART
UART 64 Byte TX FIFO
Regs TX &
RX
IR
ENDEC
BRG 64 Byte RX FIFO
Crystal Osc/Buffer
VCC
(1.62 to 3.63 V)
GND
TX, RX,
RTS#, CTS#,
DTR#, DSR#,
RI#, CD#
XTAL1
XTAL2
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (510) 668-7000 • FAX (510) 668-7017 • www.exar.com
No Preview Available ! |
XR16M780
1.62V TO 3.63V HIGH PERFORMANCE UART WITH 64-BYTE FIFO
REV. 1.0.0
FIGURE 2. PIN OUT ASSIGNMENT FOR 32-PIN QFN AND 48-PIN TQFP PACKAGES IN 16 AND 68 MODE
24 23 22 21 20 19 18 17
DSR#
CD#
RI#
VCC
D0
D1
D2
D3
25
26
27
28
29
30
31
32
32- pin QFN in
Intel Bus Mode
16 NC
15 NC
14 IOR #
13 GND
12 IOW #
11 XTAL 2
10 XTAL 1
9 PwrSave
12345678
24 23 22 21 20 19 18 17
DSR#
CD#
RI#
VCC
D0
D1
D2
D3
25
26
27
28
29
30
31
32
32-pin QFN in
Motorola Bus
Mode
12345678
16 NC
15 NC
14 IOR#
13 GND
12 R/W#
11 XTAL 2
10 XTAL 1
9 PwrSave
VCC
VCC
GND
36 35 34 33 32 31 30 29 28 27 26 25
NC 37
24
www.DataShCeTeSt4#U.co3m8
23
DSR# 39
22
CD# 40
21
RI#
VCC
41
42
48-TQFP in
20
19
D0 43 Intel Bus Mode 18
D1 44
17
D2 45
16
D3 46
15
D4 47
14
NC 48
13
1 2 3 4 5 6 7 8 9 10 11 12
NC
NC
NC
NC
NC
IOR#
GND
NC
IOW#
XTAL2
XTAL1
PwrSave
VCC
NC
CTS#
DSR#
CD#
RI#
VCC
D0
D1
D2
D3
D4
NC
36 35 34 33 32 31 30 29 28 27 26 25
37 24
38 23
39 22
40 21
41
42 48-TQFP in
20
19
43 Motorola Bus Mode 18
44 17
45 16
46 15
47 14
48 13
1 2 3 4 5 6 7 8 9 10 11 12
NC
NC
NC
NC
NC
IOR#
GND
NC VCC
R/W#
XTAL2
XTAL1
PwrSave
GND
2
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XR16M780
REV. 1.0.0
1.62V TO 3.63V HIGH PERFORMANCE UART WITH 64-BYTE FIFO
FIGURE 3. PIN OUT ASSIGNMENT FOR 25-PIN BGA PACKAGE
A1 Corner
12 34 5
A
B
C
D
E
CTS#
VCC
D0
D3
D4
Transparent Top View
RESET
16/68#
D6
D1
D2
INT
RTS#
D7
TX
D5
A1
A0
PwrSave
CS#
RX
A2
IOR#
IOW#
XTAL1
GND
ORDERING INFORMATION
PART NUMBER
XR16M780IL32
XR16M780IM48
XR16M780IB25
PACKAGE
32-Pin QFN
48-Lead TQFP
25-Pin BGA
OPERATING TEMPERATURE
RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
DEVICE STATUS
Active
Active
Active
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| Номер в каталоге | Описание | Производители |
| XR16M780 | 1.62V TO 3.63V HIGH PERFORMANCE UART | Exar Corporation |
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