Datasheet > AT83C5112

AT83C5112

更新时间： 2024-02-28 20:02:53

品牌	Logo	应用领域
爱特美尔 - ATMEL		转换器微控制器
页数	文件大小	规格书
97页	1160K
描述
8-bit Microcontroller with A/D Converter

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AT83C5112 技术参数

是否Rohs认证：	不符合	生命周期：	Obsolete
零件包装代码：	QFP	包装说明：	LFQFP,
针数：	48	Reach Compliance Code：	unknown
ECCN代码：	3A991.A.2	HTS代码：	8542.31.00.01
风险等级：	5.92	具有ADC：	YES
其他特性：	OPERATES AT 2.7V MINIMUM SUPPLY @ 40 MHZ	地址总线宽度：
位大小：	8	最大时钟频率：	40 MHz
DAC 通道：	NO	DMA 通道：	NO
外部数据总线宽度：		JESD-30 代码：	S-PQFP-G48
长度：	7 mm	湿度敏感等级：	1
I/O 线路数量：	37	端子数量：	48
最高工作温度：	85 °C	最低工作温度：	-40 °C
PWM 通道：	YES	封装主体材料：	PLASTIC/EPOXY
封装代码：	LFQFP	封装形状：	SQUARE
封装形式：	FLATPACK, LOW PROFILE, FINE PITCH	峰值回流温度（摄氏度）：	225
认证状态：	Not Qualified	ROM可编程性：	MROM
座面最大高度：	1.6 mm	速度：	40 MHz
最大供电电压：	5.5 V	最小供电电压：	2.7 V
标称供电电压：	5 V	表面贴装：	YES
技术：	CMOS	温度等级：	INDUSTRIAL
端子形式：	GULL WING	端子节距：	0.5 mm
端子位置：	QUAD	处于峰值回流温度下的最长时间：	NOT SPECIFIED
宽度：	7 mm	uPs/uCs/外围集成电路类型：	MICROCONTROLLER
Base Number Matches：	1

AT83C5112 数据手册

AT8xC5112

Table 2. Pin Description (Continued)

PIN NUMBER

TYPE

LQFP PLCC

Mnemonic

Name and Function

AIN4 (P4.4): A/D converter input 4

I/O

MISO: Master IN, Slave OUT of the SPI controller

AIN5 (P4.5): A/D converter input 5

MOSI: Master OUT, Slave IN of the SPI controller

AIN6 (P4.6): A/D converter input 6

SPSCK: Clock I/O of the SPI controller

I/O

AIN7 (P4.7): A/D converter input 7

P0.0-P0.7

P2.0-P2.7

Port 0: Port 0 is an open-drain, bi-directional I/O port. Port 0 pins that have 1s written to them float and can be

used as high impedance inputs. Port 0 is also the multiplexed low-order address and data bus during access to

external program and data memory. In this application, it uses strong internal pull-up when emitting 1s.

I/O

Port 2: Port 2 is an 8-bit bi-directional I/O port with internal pull-ups. Port 2 pins that have 1s written to them

are pulled high by the internal pull-ups and can be used as inputs. As inputs, Port 2 pins that are externally

pulled low will source current because of the internal pull-ups. Port 2 emits the high-order address byte during

fetches from external program memory and during accesses to external data memory that use 16-bit

addresses (MOVX atDPTR). In this application, it uses strong internal pull-ups emitting 1s. During accesses to

external data memory that use 8-bit addresses (MOVX atRi), port 2 emits the contents of the P2 SFR.

RST

ALE

RST: A high on this pin for two machine cycles while the oscillator is running, resets the device. An internal

diffused resistor to V_SSpermits a power-on reset using only an external capacitor to V_CC.If the hardware

watchdog reaches its time-out, the reset pin becomes an output during the time the internal reset is activated.

Address Latch Enable: Output pulse for latching the low byte of the address during an access to external

memory. In normal operation, ALE is emitted at a constant rate of 1/6 (1/3 in X2 mode) the oscillator frequency,

and can be used for external timing or clocking. Note that one ALE pulse is skipped during each access to

external data memory. ALE can be disabled by setting SFR’s AUXR.0 bit. With this bit set, ALE will be inactive

during internal fetches.

PSEN

Program Store Enable: The read strobe to external program memory. When executing code from the external

program memory, PSEN is activated twice each machine cycle, except that two PSEN activations are skipped

during each access to external data memory. PSEN is not activated during fetches from internal program

memory.

External Access Enable: EA must be externally held low to enable the device to fetch code from external

program memory locations 0000H and 1FFFH . If EA is held high, the device executes from internal program

memory unless the program counter contains an address greater than 1FFFH. EA must be held low for

ROMless devices. If security level 1 is programmed, EA will be internally latched on Reset.

XTAL1

XTAL2

XTAL1 : Input to the inverting oscillator amplifier and input to the internal clock generator circuits.

XTAL2 : Output from the inverting oscillator amplifier.

4191B–8051–04/03

1...4 5 678 9 10...97

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