参数资料
型号: DS87C520-QCL+
厂商: Maxim Integrated Products
文件页数: 34/43页
文件大小: 0K
描述: IC MCU EPROM/ROM 33MHZ HS 44PLCC
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 26
系列: 87C
核心处理器: 8051
芯体尺寸: 8-位
速度: 33MHz
连通性: EBI/EMI,SIO,UART/USART
外围设备: 电源故障复位,WDT
输入/输出数: 32
程序存储器容量: 16KB(16K x 8)
程序存储器类型: OTP
RAM 容量: 1K x 8
电压 - 电源 (Vcc/Vdd): 4.5 V ~ 5.5 V
振荡器型: 外部
工作温度: 0°C ~ 70°C
封装/外壳: 44-LCC(J 形引线)
包装: 管件
产品目录页面: 703 (CN2011-ZH PDF)
DS87C520/DS83C520 EPROM/ROM High-Speed Microcontrollers
4 of 43
Figure 1. Block Diagram
PIN DESCRIPTION
PIN
DIP
PLCC
TQFP
NAME
FUNCTION
40
44
38
VCC
Positive Supply Voltage. +5V
20
1, 22, 23
16, 17, 39
GND
Digital Circuit Ground
9
10
4
RST
Reset Input. The RST input pin contains a Schmitt voltage input
to recognize external active high Reset inputs. The pin also
employs an internal pulldown resistor to allow for a combination
of wired OR external reset sources. An RC is not required for
power-up, as the device provides this function internally.
18
20
14
XTAL2
19
21
15
XTAL1
Crystal Oscillator Pins. XTAL1 and XTAL2 provide support for
parallel-resonant, AT-cut crystals. XTAL1 acts also as an input if
there is an external clock source in place of a crystal. XTAL2
serves as the output of the crystal amplifier.
29
32
26
PSEN
Program Store-Enable Output. This active-low signal is
commonly connected to optional external ROM memory as a chip
enable.
PSEN provides an active-low pulse and is driven high
when external ROM is not being accessed.
DS87C520/
DS83C520
相关PDF资料
PDF描述
DS89C430-QNL+ IC MCU FLASH 16KB 33MHZ 44-PLCC
D38999/24WF32PN CONN RCPT 32POS JAM NUT W/PINS
0355240924 1.78MM MALE 9 POS VERT BLUE
D38999/26FD19PA CONN PLUG 19POS STRAIGHT W/PINS
D38999/20FB98JN CONN RCPT 6POS WALL MNT W/SCKT
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DS87C520-QCL+T&R 制造商:Maxim Integrated Products 功能描述:MCU 8BIT CISC 16KB EPROM 5V 44PLCC - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC MCU EPROM/ROM 33MHZ HS 44PLCC
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