参数资料
型号: DS1986-F3
厂商: MAXIM INTEGRATED PRODUCTS INC
元件分类: Programmable ROM
英文描述: 64K X 1 OTPROM, MEDB2
封装: MICROCAN-2
文件页数: 24/28页
文件大小: 680K
代理商: DS1986-F3
DS1986
5 of 28
HIERARCHICAL STRUCTURE FOR 1-WIRE PROTOCOL Figure 2
1-WIRE BUS
OTHER
DEVICES
64-BIT LASERED ROM Figure 3
8- Bit CRC Code
48- Bit Serial Number
8- Bit Family Code (0FH)
MSB
LSB MSB
LSB
65536-BITS EPROM
The memory map in Figure 4 shows the 65536-bit EPROM section of the DS1986 that is configured as
256 pages of 32 bytes each. The 8-bit scratchpad is an additional register that acts as a buffer when
programming the memory. Data is first written to the scratchpad and then verified by reading a 16-bit
CRC from the DS1986 that confirms proper receipt of the data and address. If the buffer contents are
correct, a programming voltage should be applied and the byte of data will be written into the selected
address in memory. This process ensures data integrity when programming the memory. The details for
reading and programming the 65536-bit EPROM portion of the DS1986 are given in the Memory
Function Commands section.
BUS
MASTER
DS1986
COMMAND
AVAILABLE
DATA FIELD
LEVEL:
COMMANDS:
AFFECTED:
READ ROM
64-BIT ROM
MATCH ROM
64-BIT ROM
SEARCH ROM
64-BIT ROM
SKIP ROM
N/A
OVERDRIVE SKIP ROM
N/A
OVERDRIVE MATCH ROM
64-BIT ROM
WRITE MEMORY
64K BIT EPROM
WRITE STATUS
EPROM STATUS BYTES
READ MEMORY
64K BIT EPROM
READ STATUS
EPROM STATUS BYTES
EXTENDED READ DATA
64K BIT EPROM
1-WIRE ROM FUNCTION
COMMANDS (SEE FIGURE 9)
DS1986 - SPECIFIC
MEMORY FUNCTION
COMMANDS
(SEE FIGURE 6)
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相关代理商/技术参数
参数描述
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DS1986F5 制造商:未知厂家 制造商全称:未知厂家 功能描述:EPROM|256X32X8|BUTTON|METAL
DS1986-F5 功能描述:iButton RoHS:否 存储类型:SRAM 存储容量:512 B 组织: 工作电源电压:3 V to 5.25 V 接口类型:1-Wire 最大工作温度:+ 85 C 尺寸:17.35 mm x 5.89 mm 封装 / 箱体:F5 MicroCan 制造商:Maxim Integrated
DS1986-F5# 功能描述:iButton RoHS:否 存储类型:SRAM 存储容量:512 B 组织: 工作电源电压:3 V to 5.25 V 接口类型:1-Wire 最大工作温度:+ 85 C 尺寸:17.35 mm x 5.89 mm 封装 / 箱体:F5 MicroCan 制造商:Maxim Integrated