参数资料
型号: DS28EC20+T
厂商: Maxim Integrated Products
文件页数: 19/27页
文件大小: 0K
描述: IC EEPROM 20KBIT TO92-3
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,000
格式 - 存储器: EEPROMs - 串行
存储器类型: EEPROM
存储容量: 20K(256 x 80)
接口: 1 线 串行
工作温度: -40°C ~ 85°C
封装/外壳: TO-226-3、TO-92-3(TO-226AA)成形引线
供应商设备封装: TO-92-3
包装: 带卷 (TR)
DS28EC20: 20Kb 1-Wire EEPROM
Figure 9-1. ROM Functions Flowchart
From Memory Functions
Flow Chart (Figure 7)
Bus Master TX
Reset Pulse
OD
Reset Pulse?
N
OD = 0
From Figure 9, 2
nd
Part
Y
2
Part
Bus Master TX ROM
Function Command
33h
Read ROM
Command?
N
DS28EC20 TX
Presence Pulse
55h N
Match ROM
Command?
F0h
Search ROM
Command?
N
CCh
Skip ROM
Command?
To Figure 9,
nd
N
Y
RC = 0
DS28EC20 TX
Family Code
(1 Byte)
Y
RC = 0
Master TX Bit 0
Y
RC = 0
DS28EC20 TX Bit 0
DS28EC20 TX Bit 0
Master TX Bit 0
Y
RC = 0
Bit 0
Match?
Y
N
N
Bit 0
Match?
Y
DS28EC20 TX
Serial Number
(6 Bytes)
Master TX Bit 1
DS28EC20 TX Bit 1
DS28EC20 TX Bit 1
Master TX Bit 1
Bit 1
Match?
Y
N
N
Bit 1
Match?
Y
DS28EC20 TX
CRC Byte
Master TX Bit 63
DS28EC20 TX Bit 63
DS28EC20 TX Bit 63
Master TX Bit 63
Bit 63
Match?
N
N
Bit 63
Match?
2
Part
RC = 1
Y
RC = 1
Y
To Figure 9,
nd
2
Part
To Memory Functions
Flow Chart (Figure 7)
19 of 27
From Figure 9,
nd
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