參數(shù)資料
型號(hào): AT90S1200-12PI
廠商: Atmel
文件頁數(shù): 22/71頁
文件大?。?/td> 0K
描述: IC MCU 1K FLSH 12MHZ IT 20DIP
標(biāo)準(zhǔn)包裝: 18
系列: AVR® 90S
核心處理器: AVR
芯體尺寸: 8-位
速度: 12MHz
連通性: SPI
外圍設(shè)備: POR,WDT
輸入/輸出數(shù): 15
程序存儲(chǔ)器容量: 1KB(512 x 16)
程序存儲(chǔ)器類型: 閃存
EEPROM 大?。?/td> 64 x 8
電壓 - 電源 (Vcc/Vdd): 4 V ~ 6 V
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 20-DIP(0.300",7.62mm)
包裝: 管件
29
AT90S1200
0838H–AVR–03/02
I/O Ports
All AVR ports have true Read-Modify-Write functionality when used as general digital
I/O ports. This means that the direction of one port pin can be changed without uninten-
tionally changing the direction of any other pin with the SBI and CBI instructions. The
same applies for changing drive value (if configured as output) or enabling/disabling of
pull-up resistors (if configured as input).
Port B
Port B is an 8-bit bi-directional I/O port.
Three I/O memory address locations are allocated for the Port B, one each for the Data
Register – PORTB ($18), Data Direction Register – DDRB ($17), and the Port B Input
Pins – PINB ($16). The Port B Input Pins address is read-only, while the Data Register
and the Data Direction Register are read/write.
All port pins have individually selectable pull-up resistors. The Port B output buffers can
sink 20 mA and thus drive LED displays directly. When pins PB0 to PB7 are used as
inputs and are externally pulled low, they will source current if the internal pull-up resis-
tors are activated.
The Port B pins with alternate functions are shown in Table 8.
When the pins are used for the alternate function, the DDRB and PORTB register has to
be set according to the alternate function description.
Port B Data Register – PORTB
Port B Data Direction Register
– DDRB
Port B Input Pin Address –
PINB
The Port B Input Pins address (PINB) is not a register, and this address enables access
to the physical value on each Port B pin. When reading PORTB, the Port B Data Latch
is read, and when reading PINB, the logical values present on the pins are read.
Table 8. Port B Pin Alternate Functions
Port Pin
Alternate Functions
PB0
AIN0 (Analog Comparator positive input)
PB1
AIN1 (Analog Comparator negative input)
PB5
MOSI (Data Input line for memory downloading)
PB6
MISO (Data Output line for memory uploading)
PB7
SCK (Serial Clock input)
Bit
7
65
43
21
0
$18
PORTB7
PORTB6
PORTB5
PORTB4
PORTB3
PORTB2
PORTB1
PORTB0
PORTB
Read/Write
R/W
Initial Value
0
Bit
7
65
43
21
0
$17
DDB7
DDB6
DDB5
DDB4
DDB3
DDB2
DDB1
DDB0
DDRB
Read/Write
R/W
Initial Value
0
Bit
7
65
43
21
0
$16
PINB7
PINB6
PINB5
PINB4
PINB3
PINB2
PINB1
PINB0
PINB
Read/Write
RR
Initial Value
N/A
相關(guān)PDF資料
PDF描述
AT90S1200-12PC IC MCU 1K FLSH 12MHZ 20DIP
PIC16LF87-I/SO IC MCU FLASH 4KX14 EEPROM 18SOIC
AT90LS8535-4AI IC MCU 8K 4MHZ A/D LV IT 44TQFP
PIC18F26J50-I/SS IC PIC MCU FLASH 64K 2V 28-SSOP
SFW20R-1STE1 SFW20R-1STE1-FFC/FPC CONN
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AT90S1200-12SC 功能描述:8位微控制器 -MCU 1K Flash 5V 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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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
AT90S1200-12SI 功能描述:8位微控制器 -MCU 1k bit 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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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
AT90S1200-12YC 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-bit Microcontroller with 1K Byte of In-System Programmable Flash
AT90S1200-12YI 功能描述:8位微控制器 -MCU 1K Flash 3V 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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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
AT90S1200-4PC 功能描述:8位微控制器 -MCU 1K Flash 3V 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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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