- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄384650 > MAX1459 (Maxim Integrated Products, Inc.) 2-Wire, 4-20mA Smart Signal Conditioner PDF資料下載
參數(shù)資料
| 型號： | MAX1459 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | 2-Wire, 4-20mA Smart Signal Conditioner |
| 中文描述： | 2線、4-20mA智能信號調(diào)理器 |
| 文件頁數(shù)： | 12/24頁 |
| 文件大?。?/td> | 243K |
| 代理商： | MAX1459 |
M
the EEPROM (one of the reserved bits), the necessary
commands are:
001C hex:
No-OP command, with address 1C hex
in the data field
201C hex:
WRITE EEPROM BIT command, with
address 1C hex in the data field
001C hex:
No-OP command, with address 1C hex
in the data field
ERASE EEPROM Command (1 hex)
When an ERASE EEPROM command is issued, all of
the memory locations in the EEPROM are reset to a
logic 0. The data field of the 16-bit word is ignored
(Figure 7).
Important:
An internal charge pump develops voltages
greater than 20V for EEPROM programming operations.
The EEPROM control logic requires 10ms to erase the
EEPROM. After sending a write or erase command, fail-
ure to wait 10ms before issuing another command may
result in unreliable EEPROM operation.
The maximum
number of EEPROM ERASE cycles should not ex-
ceed 100.
WRITE EEPROM BIT Command (2 hex)
The WRITE EEPROM BIT command stores a logic high
at the memory location specified by the lower 7 bits of
the data field (D6–D0). The higher bits of the data field
(D11–D7) are ignored (Figure 8). Note that to write to
the internal EEPROM, WE and CS must be high. In
2-Wire, 4–20mA
Smart Signal Conditioner
12
______________________________________________________________________________________
LOAD REGISTER
1
1
Fh
1
1
READ EEPROM MATRIX
1
1
Eh
1
0
CONTROL OUTPUT MUX
1
0
Dh
1
1
WRITE Data to FSOTC DAC
1
0
Ch
1
0
No-OP
ERASE EEPROM
WRITE EEPROM BIT
READ EEPROM BIT
MAXIM RESERVED
MAXIM RESERVED
MAXIM RESERVED
MAXIM RESERVED
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0h
1h
2h
3h
4h
5h
6h
7h
0
0
0
0
0
0
0
0
0
1
0
1
0
1
0
1
WRITE Data to
Configuration Register
0
0
8h
1
0
WRITE Data to Offset DAC
0
0
9h
1
1
WRITE Data to Offset-TC
DAC
0
1
Ah
1
0
WRITE Data to FSO DAC
0
1
Bh
1
1
FUNCTION
CM2 CM1
HEX
CODE
CM3
CM0
Figure 7. ERASE EEPROM Command Timing Diagram
SCLK
DIO
COMMAND
MSB
LSB
LSB
MSB
MSB
LSB
DATA
16-BIT CONTROL WORD - ERASE EEPROM COMMAND (1XXX HEX)
X
X
X
X
X
X
X
X
X
X
0
1
0
X
0
X
Figure 6. No-OP Command Timing Diagram
SCLK
DIO
COMMAND
MSB
LSB
LSB
MSB
MSB
LSB
DATA
16-BIT CONTROL WORD - NO-OP COMMAND (OOXX HEX)
0
A6
0
A5
0
A4
A3
A2
A1
A0
0
0
0
0
0
0
Table 5. MAX1459 Commands
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX1459AAP | 2-Wire, 4-20mA Smart Signal Conditioner |
| MAX1459CAP | 2-Wire, 4-20mA Smart Signal Conditioner |
| MAX1460CCM | Low-Power, 16-Bit Smart ADC |
| MAX1460 | Low-Power, 16-Bit Smart ADC |
| MAX1462 | Low-Voltage, Low-Power, 16-Bit Smart ADC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX14590ETA+ | 制造商:Maxim Integrated Products 功能描述:HIGH-CURRENT OVERVOLTAGE PROTECTOR WITH ADJUSTABLE OVLO - Rail/Tube |
| MAX14590ETA+T | 制造商:Maxim Integrated Products 功能描述:HIGH-CURRENT OVERVOLTAGE PROTECTOR WITH ADJUSTABLE OVLO - Tape and Reel |
| MAX14591EETA+ | 制造商:Maxim Integrated Products 功能描述:HIGH SPEED, OPEN DRAIN CAPABLE LOGIC LEVEL TRANSLATOR - Rail/Tube |
| MAX14591EETA+T | 制造商:Maxim Integrated Products 功能描述:HIGH SPEED, OPEN DRAIN CAPABLE LOGIC LEVEL TRANSLATOR - Tape and Reel |
| MAX14591EEWA+ | 制造商:Maxim Integrated Products 功能描述:HIGH SPEED, OPEN DRAIN CAPABLE LOGIC LEVEL TRANSLATOR - Rail/Tube |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。