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參數(shù)資料
型號: 73S1209F-68IM/F
廠商: TERIDIAN SEMICONDUCTOR CORP
元件分類: 電源管理
英文描述: POWER SUPPLY MANAGEMENT CKT, QCC68
封裝: LEAD FREE, QFN-68
文件頁數(shù): 87/123頁
文件大?。?/td> 1385K
代理商: 73S1209F-68IM/F
73S1209F Data Sheet
DS_1209F_004
Keypad Scan Time Register (KSIZE): 0xD5
0x00
This register is not applicable when HWSCEN is not set. Unused row inputs should be connected to
VDD.
Table 69: The KSIZE Register
MSB
LSB
ROWSIZ.2
ROWSIZ.1
ROWSIZ.0 COLSIZ.2 COLSIZ.1 COLSIZ.0
Bit
Symbol
Function
KSIZE.7
KSIZE.6
KSIZE.5
ROWSIZ.2
Defines the number of rows in the keypad. Maximum number is 6 given
the number of row pins on the package. Allows for a reduced keypad size
for scanning.
KSIZE.4
ROWSIZ.1
KSIZE.3
ROWSIZ.0
KSIZE.2
COLSIZ.2
Defines the number of columns in the keypad. Maximum number is 5
given the number of column pins on the package. Allows for a reduced
keypad size for scanning.
KSIZE.1
COLSIZ.1
KSIZE.0
COLSIZ.0
Keypad Column LS Scan Order Register (KORDERL): 0xD6
0x00
In registers KORDERL and KORDERH, Column Scan Order(14:0) is grouped into 5 sets of 3 bits each.
Each set determines which column (COL(4:0) pin) to activate by loading the column number into the 3
bits. When in HW_Scan_Enable mode, the hardware will step through the sets from 1Col to 5Col (up to
the number of columns in Colsize) and scan the column defined in the 3 bits. To scan in sequential
order, set a counting pattern with 0 in set 0, and 1 in set 1,and 2 in set 2, and 3 in set 3, and 4 in set 4.
The firmware should update this as part of the interrupt service routine so that the new scan order is
loaded prior to the next key being pressed. For example, to scan COL(0) first, 1Col(2:0) should be
loaded with 000’b. To scan COL(4) fifth, 5Col(2:0) should be loaded with 100’b.
Table 70: The KORDERL Register
MSB
LSB
3COL.1
3COL.0
2COL.2
2COL.1
2COL.0
1COL.2
1COL.1
1COL.0
Bit
Symbol
Function
KORDERL.7
3COL.1
Column to scan 3
rd (lsb’s).
KORDERL.6
3COL.0
KORDERL.5
2COL.2
Column to scan 2
nd.
KORDERL.4
2COL.1
KORDERL.3
2COL.0
KORDERL.2
1COL.2
Column to scan 1
st.
KORDERL.1
1COL.1
KORDERL.0
1COL.0
66
Rev. 1.2
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73S1209F-68IMR/F 功能描述:8位微控制器 -MCU Contained 80515-SoC Serial Hst Interface RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
73S1209F-68IMR/F/P 功能描述:IC SMART CARD READER PROG 68-QFN RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器, 系列:73S12xx 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:260 系列:73S12xx 核心處理器:80515 芯體尺寸:8-位 速度:24MHz 連通性:I²C,智能卡,UART/USART,USB 外圍設(shè)備:LED,POR,WDT 輸入/輸出數(shù):9 程序存儲器容量:64KB(64K x 8) 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:2K x 8 電壓 - 電源 (Vcc/Vdd):2.7 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:- 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 85°C 封裝/外殼:68-VFQFN 裸露焊盤 包裝:管件
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73S1209F-IM44 DK 制造商:Maxim Integrated Products 功能描述:Development Boards & Kits - 8051 73S1209F Dev Kit Eval Bd Ice Cable Cd
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