參數(shù)資料
型號: LH7A405
英文描述: Microcontroller
中文描述: 微控制器
文件頁數(shù): 7/53頁
文件大?。?/td> 396K
代理商: LH7A405
32-Bit System-on-Chip
LH7A405
Advance Data Sheet
7
W14
AN4
A/D channel 4
AB15 AN3
A/D channel 3
Y15
UL_XP
Touch Screen Controller Upper Left X-plus,
AA16 XTALIN
14.7456 MHz Crystal Oscillator pins. To drive the device from an external clock source, XTALIN
can be used while XTALOUT is left unconnected.
Y16
XTALOUT
W16
nTEST0
Test Pins. Tie to VDD.
Y17
nTEST1
W17
USBDCP
USB Device control
Y18
USBDP
USB Data Positive (Differential Pair)
W18
USBDN
USB Data Negative (Differential Pair)
AB19 USBHDP0
USB Data Host Positive 0 (Differential Pair)
AA19 USBHDN0
USB Data Host Negative 0 (Differential Pair)
AB20 USBHDP1
USB Data Host Positive 1(Differential Pair)
AA20 USBHDN1
USB Data Host Negative 1(Differential Pair)
Y19
USBHPWR
USB Host Power
AB21 USBHOVRCURR
USB Overcurrent
AB22 nCS0
Asynchronous Memory Chip Select 0 (ROM/Flash)
16 mA
AA21 XTAL32IN
32.768 kHz Real Time Clock, Crystal Oscillator pins. To drive the device from an external clock
source, XTAL32IN can be used while XTAL32OUT is left unconnected.
Y20
XTAL32OUT
N13
nCS1
Asynchronous Memory Chip Select 1
16 mA
AA22 OSCEN
Oscillator Enable Output
8 mA
Y21
nCS2
Asynchronous Memory Chip Select 2
16 mA
W20
nCS3/nMMCSEL
Asynchronous Memory Chip Select 3 and MMC Select
16 mA
Y22
nCS6
Asynchronous Memory Chip Select 6
16 mA
W21
nCS7
Asynchronous Memory Chip Select 7
16 mA
M13
nWAIT
Asynchronous Memory Controller Wait
Table 1. Functional Pin List (Cont’d)
BGA
SIGNAL
DESCRIPTION
OUTPUT
DRIVE
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