參數(shù)資料
型號(hào)： AT80251G2D-RLTUM
廠商： Atmel
文件頁(yè)數(shù)： 67/77頁(yè)
文件大?。?/td> 0K
描述： IC 8051 MCU ROMLESS 44VQFP
標(biāo)準(zhǔn)包裝： 800
系列： 8x251
核心處理器： C251
芯體尺寸： 8/16-位
速度： 24MHz
連通性： EBI/EMI，I²C，Microwire，SPI，UART/USART
外圍設(shè)備： POR，PWM，WDT
輸入/輸出數(shù)： 32
程序存儲(chǔ)器類型： ROMless
RAM 容量： 1K x 8
電壓 - 電源 (Vcc/Vdd)： 4.5 V ~ 5.5 V
振蕩器型： 內(nèi)部
工作溫度： -40°C ~ 85°C
封裝/外殼： 44-TQFP
包裝： 托盤
7
AT/TSC8x251G2D
4135F–8051–11/06
Signals
Table 2.
Product Name Signal Description
Signal
Name
Type
Description
Alternate
Function
A17
O
18
th Address Bit
Output to memory as 18th external address bit (A17) in extended bus
applications, depending on the values of bits RD0 and RD1 in UCONFIG0
P1.7
A16
O
17
th Address Bit
Output to memory as 17th external address bit (A16) in extended bus
applications, depending on the values of bits RD0 and RD1 in UCONFIG0
P3.7
A15:8(1)
O
Address Lines
Upper address lines for the external bus.
P2.7:0
AD7:0(1)
I/O
Address/Data Lines
Multiplexed lower address lines and data for the external memory.
P0.7:0
ALE
O
Address Latch Enable
ALE signals the start of an external bus cycle and indicates that valid
address information are available on lines A16/A17 and A7:0. An external
latch can use ALE to demultiplex the address from address/data bus.
–
AWAIT#
I
Real-time Asynchronous Wait States Input
When this pin is active (low level), the memory cycle is stretched until it
becomes high. When using the Product Name as a pin-for-pin replacement
for a 8xC51 product, AWAIT# can be unconnected without loss of
compatibility or power consumption increase (on-chip pull-up).
Not available on DIP package.
–
CEX4:0
I/O
PCA Input/Output pins
CEXx are input signals for the PCA capture mode and output signals for
the PCA compare and PWM modes.
P1.7:3
EA#
I
External Access Enable
EA# directs program memory accesses to on-chip or off-chip code memory.
For EA# = 0, all program memory accesses are off-chip.
For EA# = 1, an access is on-chip ROM if the address is within the range of
the on-chip ROM; otherwise the access is off-chip. The value of EA# is
latched at reset.
For devices without ROM on-chip, EA# must be strapped to ground.
–
ECI
O
PCA External Clock input
ECI is the external clock input to the 16-bit PCA timer.
P1.2
MISO
I/O
SPI Master Input Slave Output line
When SPI is in master mode, MISO receives data from the slave
peripheral. When SPI is in slave mode, MISO outputs data to the master
controller.
P1.5
MOSI
I/O
SPI Master Output Slave Input line
When SPI is in master mode, MOSI outputs data to the slave peripheral.
When SPI is in slave mode, MOSI receives data from the master controller.
P1.7
INT1:0#
I
External Interrupts 0 and 1
INT1#/INT0# inputs set IE1:0 in the TCON register. If bits IT1:0 in the
TCON register are set, bits IE1:0 are set by a falling edge on INT1#/INT0#.
If bits IT1:0 are cleared, bits IE1:0 are set by a low level on INT1#/INT0#.
P3.3:2
相關(guān)PDF資料
PDF描述
TS87C51RD2-VIL IC MCU 8051 OTP 64K 5V 68PLCC
PIC18LF2423-I/SP IC PIC MCU FLASH 8KX16 28-DIP
PIC16LF84A-04I/SS IC MCU FLASH 1KX14 EE 20SSOP
5176916-1 HIGH CURRENT DRAWER 24P
PIC18F2520-I/SP IC MCU FLASH 16KX16 28-DIP
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AT80251G2D-SLRUL 功能描述:8位微控制器 -MCU Microcontroller 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
AT80251G2D-SLRUM 功能描述:8位微控制器 -MCU ROMless 8/16bit 5V 24MHz 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
AT80251G2D-SLSUL 功能描述:8位微控制器 -MCU ROMless 8/16bit 5.5V 16MHz 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
AT80251G2D-SLSUM 功能描述:8位微控制器 -MCU ROMless 8/16bit 5V 24MHz 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
AT804 制造商:POSEICO 制造商全稱:POSEICO 功能描述:PHASE CONTROL THYRISTOR
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*