參數(shù)資料
型號： SH2165-FGT
元件分類： 微控制器/微處理器
英文描述： SPECIALTY MICROPROCESSOR CIRCUIT, PQFP64
封裝： 10 X 10 MM, 0.50 MM PITCH, ROHS COMPLIANT, LQFP-64
文件頁數(shù)： 23/33頁
文件大?。?/td> 354K
代理商： SH2165-FGT
SH2165
Copyright 1999-2005 Semtech Corporation
SH2165 data sheet v1.08 (2005-05-17)
www.semtech.com
3
DESCRIPTION
PIN DESCRIPTIONS
The SH2165 consists functionally
of several major sections (see the
block diagram on the previous
page). These include the PixiPoint
interface, the keyboard interface,
the 16-bit timer, the oscillator
circuit, the USB 2.0 full-speed
communication port, and the I2C
EEPROM communication port. All
sections communicate with each
other and operate concurrently.
The SH2165 has a built-in
oscillator circuit intended to work
with an external 6.00 MHz crystal
or ceramic resonator with built-in
load capacitors.
OSCILLATOR
If an EEPROM is used, it must be
an industry standard 32-Kbit or
larger EEPROM, such as a
24LC32; the I2C serial data and
serial clock pins must be connected
to it.
EEPROM SERIAL INTERFACE
Mnemonic
Pin
Type
Name and Function
Power
Vcc
14
P
Power supply: 3.0 V – 3.6 V
VccE
9
P
Connect to Vcc
DVcc, PVcc
22, 21
Vref
10
P
Reference voltage; connect to Vcc
Vss
11
P
Ground
CNVss, Vss2
7, 11
P
Connect to Vss
PVss
20
Vref
10
P
Reference voltage; connect to Vcc
Reset
_RESET
8
I
Reset
Oscillator
Xin
12
I
Oscillator Input
Xout
13
O
Oscillator Output
USB
D-
26
I/O
USB D- line
D+
25
I/O
USB D+ line
TrON
24
O
USB reference voltage output
USBVref
23
P
USB reference voltage input; connect to Vcc
Keyboard
CAPSLED
18
I/O
Caps lock LED: direct drive pin
KANALED
16
I/O
Katakana LED/emergency LED: direct drive pin
NUMLED
19
I/O
Num lock LED: direct drive pin
SCRLLED
17
I/O
Scroll lock LED: direct drive pin
COL00-05
29-34
I/O
Columns for scan matrix
COL06-12
36-42
I/O
Columns for scan matrix
COL13-15
53-55
I/O
Columns for scan matrix
COL16-17
59-60
I/O
Columns for scan matrix
ROW0-7
43-50
I/O
Row lines for scan matrix
FNMOD
35
I/O
Function operation mode: simple mode: tie to ground;
sticky mode: leave floating
BKLT50
52
I/O
Backlight control (leave floating if no backlight used)
BKLTON
51
I/O
Backlight control (leave floating if no backlight used)
Pointer
SELA
56
I/O
PixiPoint mux select A
SELB
57
I/O
PixiPoint mux select B
SELC
58
I/O
PixiPoint mux select C
AD
4
I/O
Analog to digital converter pin
CCLAMP
1
I/O
Sample capacitor minus drive
CLAMP
64
I/O
Sample capacitor plus drive
DAN
3
I/O
Reference resistor minus drive
DAP
2
I/O
Reference resistor plus drive
RDRV
5
I/O
Integration drive
DRVM
61
I/O
Positive drive
DRVP
62
I/O
Negative drive
XYNOTZ
63
I/O
High: XY drive; low: Z drive
ZSENS
6
I
Z sensitivity setting
I2C
SCL
27
I/O
I2C serial clock to and from matrix EEPROM
SDA
28
I/O
I2C serial data to and from matrix EEPROM
Note: An underscore before a pin mnemonic denotes an active low signal.
Pin Types Legend: I=Input; O=Output; I/O=Input or Output; P=Power
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