參數(shù)資料
型號: 7643
英文描述: IrDA. protocol handler plus endec for DCE Apps, -40C to +85C, 18-SOIC 300mil, TUBE
中文描述: 7643Group數(shù)據(jù)表數(shù)據(jù)表1369K/JUL.30.03
文件頁數(shù): 4/120頁
文件大?。?/td> 1369K
代理商: 7643
Rev.1.00 Jul 30, 2003 page 4 of 119
7643 Group
P5
0
/X
CIN
,
P5
1
/T
OUT
/
X
COUT
,
P5
2
,P5
3
,P5
4
,
P5
5
,P5
6
,P5
7
Apply 4.15 V – 5.25 V for 5 V version or 3.00 V – 3.60 V for 3 V version to the Vcc pin. Apply 0 V to the
Vss pin.
This controls the MCU operating mode. Connect this pin to Vss. If connecting this pin to Vcc, the
internal ROM is inhibited. In the flash memory version this pin functions as a V
PP
power supply input pin.
These pins are the power supply inputs for analog circuitry.
Reset input pin for active “L.”
Connect a ceramic resonator or a quartz-crystal oscillator between the X
IN
and X
OUT
pins to set the
oscillation frequency.
If an external clock is used, connect the clock source to the X
IN
pin and leave the X
OUT
pin open.
Loop filter for the frequency synthesizer.
It is a capacitor connection pin for built-in DC-DC converter. At Vcc=5 V, use built-in DC-DC converter
by permitting a USB line driver and connect a capacitor. Refer to "Notes on use" for details. Built-in DC-
DC converter cannot be used at Vcc = 3.3 V. Supply 3.3V power supply to this pin from the externals.
USB D+ voltage signal port. Connect a 27 to 33
(recommended) resistor in series.
USB D- voltage signal port. Connect a 27 to 33
(recommended) resistor in series.
8-bit I/O port.
CMOS compatible input level.
CMOS 3-state output structure.
I/O direction register allows each pin to be individually programmed as either input or output.
When connecting an external memory, these function as the address bus.
8-bit I/O port.
CMOS compatible input level.
CMOS 3-state output structure.
I/O direction register allows each pin to be individually programmed as either input or output.
When connecting an external memory, these function as the address bus.
Key-on wake-up interrupt input pin
V
CC
, V
SS
CNVss/V
PP
AVss/AVcc
RESET
X
IN
X
OUT
LPF
Ext. Cap.
USB D+
USB D-
P0
0
/AB
0
P0
7
/AB
7
Name
Power source
CNVss
Analog power
supply
Reset input
Clock input
Clock output
LPF
3.3 V line power
supply
USB D+
USB D-
Function except a port function
PIN DESCRIPTION
Table 1 Pin description (1)
Function
P1
0
/AB
8
P1
/AB
15
P2
0
/DB
0
P2
7
/DB
7
8-bit I/O port.
CMOS compatible input level or VIHL input level.
CMOS 3-state output structure.
I/O direction register allows each pin to be individually
programmed as either input or output.
When connecting an external memory, these function as
the data bus.
8-bit I/O port.
CMOS compatible input level.
CMOS 3-state output structure.
I/O direction register allows each pin to be individually
programmed as either input or output.
When connecting an external memory, these function as
the control bus.
P3
0
/RDY,
P3
1
, P3
2
,
P3
3
/DMA
OUT
,
P3
4
/
φ
OUT
,
P3
5
/SYNC
OUT
,
P3
6
/WR,
P3
7
/RD
P4
0
/EDMA,
P4
1
/INT
0
,
P4
2
/INT
1
,
P4
3
,P4
4
8-bit I/O port.
CMOS compatible input level.
CMOS 3-state output structure.
I/O direction register allows each pin to be individually
programmed as either input or output.
When connecting an external memory, these function as
the control bus.
8-bit I/O port.
CMOS compatible input level.
CMOS 3-state output structure.
I/O direction register allows each pin to be individually
programmed as either input or output.
I/O port P0
I/O port P1
I/O port P2
I/O port P3
(See Remarks.)
External memory control pin
External memory control pin
External interrupt pin
Sub-clock generating input pin
Timers 1, 2 pulse output pins
Sub-clock generating output pin
Pin
I/O port P4
I/O port P5
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