1024-Bit EEPROM iButton
TO FIGURE 9a
FROM FIGURE 9a
A5h
RESUME
N
3Ch
OVERDRIVE-
N
69h
OVERDRIVE-
N
COMMAND?
Y
SKIP ROM?
Y
RC = 0; OD = 1
MATCH ROM?
Y
RC = 0; OD = 1
RC = 1?
Y
N
MASTER Tx BIT 0
(SEE NOTE)
MASTER Tx
RESET?
Y
BIT 0 MATCH?
N
OD = 0
N
Y
MASTER Tx BIT 1
MASTER Tx
RESET?
Y
(SEE NOTE)
N
BIT 1 MATCH?
N
OD = 0
Y
MASTER Tx BIT 63
(SEE NOTE)
FROM FIGURE 9a
BIT 63 MATCH?
Y
RC = 1
N
OD = 0
TO FIGURE 9a
NOTE: THE OD FLAG REMAINS AT 1 IF THE DEVICE WAS ALREADY AT OVERDRIVE SPEED BEFORE THE OVERDRIVE-MATCH ROM COMMAND WAS ISSUED.
Figure 9b. ROM Functions Flowchart (continued)
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15
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相关代理商/技术参数
DS1972-F5 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:1024-Bit EEPROM iButton
DS1972-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
DS1972-F5+ 功能描述:iButton 1024-Bit EEPROM 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
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