参数资料
型号: PIC18F6527-I/PT
厂商: Microchip Technology
文件页数: 7/10页
文件大小: 0K
描述: IC PIC MCU FLASH 24KX16 64TQFP
产品培训模块: Asynchronous Stimulus
PIC18 J Series MCU Overview
8-bit PIC® Microcontroller Portfolio
标准包装: 160
系列: PIC® 18F
核心处理器: PIC
芯体尺寸: 8-位
速度: 40MHz
连通性: I²C,SPI,UART/USART
外围设备: 欠压检测/复位,HLVD,POR,PWM,WDT
输入/输出数: 54
程序存储器容量: 48KB(24K x 16)
程序存储器类型: 闪存
EEPROM 大小: 1K x 8
RAM 容量: 3.8K x 8
电压 - 电源 (Vcc/Vdd): 4.2 V ~ 5.5 V
数据转换器: A/D 12x10b
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 64-TQFP
包装: 托盘
产品目录页面: 644 (CN2011-ZH PDF)
配用: XLT64PT5-ND - SOCKET TRAN ICE 64MQFP/TQFP
AC164319-ND - MODULE SKT MPLAB PM3 64TQFP
PIC18F6527/6622/8527/8622
DS80253B-page 6
2006 Microchip Technology Inc.
22. Module: Reset
This version of silicon does not support the func-
tionality described in Note 1 of parameter D002 in
Section 28.1 “DC Characteristics: Supply
Voltage” of the data sheet. The RAM content may
be altered during a Reset event if the following
conditions are met.
Device is accessing RAM.
Asynchronous Reset (i.e., WDT, BOR or MCLR
occurs when a write operation is being
executed (start of a Q4 cycle).
Work around
None.
Date Codes that pertain to this issue:
All engineering and production devices.
23. Module: External Memory Bus
The A<19:16> EMB address lines and Read/Write
control pins (OE, WRH and WRL) are released to
their respective inactive states at the same time,
violating
the
timing
condition
mentioned
in
Figure 28-8 and Figure 28-9 in the Device Data
Sheet. This may result in a peripheral device on
the bus detecting an address change when a write/
read is initiated. The bus capacitance and signal
delay on the address and control lines can affect
the probability of invalid detection.
Work around
Two work arounds are available:
1. Use a latch based on the falling edge of ALE to
hold the A<19:16> signals.
2. Add a delay circuit to extend the valid time for
A<19:16> signals to ensure the address is
valid until read/write signals go inactive.
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