DataSheet.es M-986-1R2P Hoja de datos PDF

PDF M-986-1R2P Datasheet ( Hoja de datos )


MFC Transceivers - M-986-1R2P - Clare Inc.

Número de pieza M-986-1R2P
Descripción MFC Transceivers
Fabricantes Clare Inc. 
Logotipo Clare  Inc. Logotipo
Vista previa
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M-986-1R2P datasheet
M-986-1R2P pdf, arduino
M-986-2R2
External Clock Option: An external frequency source
can be used by injecting the frequency directly in
X2/CLKIN, with X1 left unconnected. The external fre-
quency injected must conform to the specifications list-
ed in the External Frequency specification Table on
page 7.
Flammability/Reliability Specifications
Reliability:
Flammability:
185 FITS failures/billion hours
Passes UL 94 V-0 tests
Signal Description
Signal
DIP
Pinout
PLCC
Pinout
I/O/Z
Description
Note: Please see the following definitions: DIP = Dual In-line Package PLCC = Plastic Leaded Chip Carrier
D15-D8
18-11
13-17, 19-21
I/O/Z Unused. Leave open.
D7-D0
19-26
22-28, 30
I/O/Z 8-bit coprocessor latch.
TBLF
40
44
O Transmit buffer latch full flag.
RBLE
1
2
O Receive buffer latch empty flag
HI/LO
2
3
I Latch byte select pin. Tie low.
BIO 9 10 I Unused. Leave open.
RD 32 36 I/O Used by the external processor to read from the coprocessor
latch by driving the RD line active (low), thus enabling the output
latch to drive the latched data. When the data has been read, the
external device must bring the RD line high.
EXINT
5
6
I Unused. Leave open.
MC 3 4 I Microcomputer mode select pin. Tie low.
MC/PM
27
31
I Coprocessor mode select pin. Tie low.
RS 4 5
I Reset input for initializing the device. When an active low is placed
on RS pin for a minimum of five clock cycles, RD and WR are
forced high, and the data bus (D7 through D0) goes to a high
impedance state. The serial port clock and transmit outputs also go
to the high impedance state.
WR 31 35 I/O Used by the external processor to write data to the coprocessor
port. To write data the external processor drives the WR line low,
places data on the data bus, and then drives the WR line high to
clock the data into the on-chip latch.
XF 28 32
O Watchdog signal. Toggles at least once every 15 milliseconds when
the processor is functioning properly. If the pin is not toggled at
least once every 15 ms, the processor is lost and should be reset.
CLKOUT
6
7
O System clock output (one-fourth crystal/CLKIN frequency,
nominally 5.12 MHz).
VCC 30 34
I 5V supply pin.
VSS
10 1, 12, 18, 29
I Ground pin.
X1 7 8 O Crystal output pin for internal oscillator. If an internal oscillator is
not used, this pin should be left unconnected.
X2/CLKIN
8
9
I Input pin to the internal oscillator (X2) from the crystal.
Alternatively, an input pin for the external oscillator (CLKIN).
DR1 & DR0
33 & 29
37, 33
I Serial-port receive-channel inputs. 2.048 MHz serial data is received
in the receive registers via these pins. DR0 = channel 1; DR1 =
channel 2
DX1 & DX0
36 & 35
40, 39
O Serial-port transmit-channel outputs. 2.048 MHz serial data is
transmitted from the transmit registers on these pins.These outputs
are in the high-impedance state when not transmitting.
Rev. 3 www.clare.com
5





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