參數(shù)資料
型號(hào)： AT87C52X2-3CSUM
廠商： Atmel
文件頁數(shù)： 53/55頁
文件大?。?/td> 0K
描述： IC 8051 MCU 8K OTP 40MHZ 40DIP
標(biāo)準(zhǔn)包裝： 216
系列： 87C
核心處理器： 8051
芯體尺寸： 8-位
速度： 40/20MHz
連通性： UART/USART
外圍設(shè)備： POR
輸入/輸出數(shù)： 32
程序存儲(chǔ)器容量： 8KB（8K x 8）
程序存儲(chǔ)器類型： OTP
RAM 容量： 256 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： 40-DIP（0.600"，15.24mm）
包裝： 管件
7
TS8xCx2X2
4184I–8051–02/08
13
15
9
I
INT1 (P3.3): External interrupt 1
14
16
10
I
T0 (P3.4): Timer 0 external input
15
17
11
I
T1 (P3.5): Timer 1 external input
16
18
12
O
WR (P3.6): External data memory write strobe
17
19
13
O
RD (P3.7): External data memory read strobe
Reset
9
10
4
I
Reset: A high on this pin for two machine cycles while the
oscillator is running, resets the device. An internal diffused
resistor to VSS permits a power-on reset using only an
external capacitor to VCC.
ALE/PROG
30
33
27
O (I) Address Latch Enable/Program Pulse: 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. This pin is also the program pulse input (PROG)
during EPROM programming. ALE can be disabled by setting
SFR’s AUXR.0 bit. With this bit set, ALE will be inactive
during internal fetches.
PSEN
29
32
26
O
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.
EA/VPP
31
35
29
I
External Access Enable/Programming Supply Voltage:
EA must be externally held low to enable the device to fetch
code from external program memory locations 0000H and
3FFFH (RB) or 7FFFH (RC), or FFFFH (RD). If EA is held
high, the device executes from internal program memory
unless the program counter contains an address greater than
3FFFH (RB) or 7FFFH (RC) EA must be held low for
ROMless devices. This pin also receives the 12.75V
programming supply voltage (VPP) during EPROM
programming. If security level 1 is programmed, EA will be
internally latched on Reset.
XTAL1
19
21
15
I
Crystal 1: Input to the inverting oscillator amplifier and input
to the internal clock generator circuits.
XTAL2
18
20
14
O
Crystal 2: Output from the inverting oscillator amplifier
Mnemonic
Pin Number
Type
Name and Function
DIL
LCC
VQFP
1.4
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AT87C52X2-3CSUV 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
AT87C52X2-RLRUM 功能描述:8位微控制器 -MCU 0.5um 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
AT87C52X2-RLTUL 功能描述:8位微控制器 -MCU C72X2C52 0.5m OTP 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
AT87C52X2-RLTUM 功能描述:8位微控制器 -MCU C72X2 C52 0.5 m X 2 OTP 0.5 NV 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
AT87C52X2-RLTUV 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-bit Microcontroller 8 Kbytes ROM/OTP, ROMless
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