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參數(shù)資料
| 型號(hào)： | AK9824 |
| 廠商： | Asahi Kasei Microsystems Co.,Ltd |
| 英文描述： | Aluminum Snap-In Capacitor; Capacitance: 2200uF; Voltage: 160V; Case Size: 35x45 mm; Packaging: Bulk |
| 中文描述： | 2K / 4Kbit?與2通道8位的EEPROM / A轉(zhuǎn)換器 |
| 文件頁(yè)數(shù)： | 4/17頁(yè) |
| 文件大?。?/td> | 171K |
| 代理商： | AK9824 |
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ASAHI KASEI
[AK9822/24]
DAD01E-00
1999/05
- 4 -
Output of D/A converter
The output of the D/A converters can be set by the WRITE and the CALL instructions.
～
D8) of the first address of the internal EEPROM (the address "0")
corresponds to "AO" of the D/A converter output. Lower 8bit data (D7
～
D0) of the address "0"
corresponds to "A1". The internal composition of EEPROM is shown in the table2.
Address
D15
～
D8
D7
～
D0
0
1
Set data of A0
General purpose memory
Set data of A1
127(AK9822)
/255(AK9824)
General purpose memory
Table2. Internal composition of EEPROM
If the WRITE instruction by which the address "0" is specified is executed at the normal mode, the
outputs of the D/A converter of A0 and A1 are set by the specified data.
When the WRITE instruction by which the address "0" is specified is executed at the WRITE enable
state and the normal mode, the data is written in the address "0" of EEPROM and the outputs of the
D/A converter are set. When the WRITE instruction by which the address "0" is specified is
executed at the WRITE disable state and the normal mode, the data is not written in EEPROM and
the outputs of the D/A converter are set. Table3 shows the relation between EEPROM, D/A
converter and WRITE instruction.
State of AK9822/24
State of address"0"
Output of A0 and A1
WRITE enable
The data change to the specified data.
Power down
mode
WRITE disable
The data does not change.
The DAC outputs
are "Hi-Z".
WRITE enable
The data change to the specified data.
Normal mode
WRITE disable
The data does not change.
The DAC outputs
change to the
specified data.
Table3. Relation between EEPROM, D/A converter and WRITE instruction
If the CALL instruction is executed, the outputs of the D/A converter are set by the data of the
general purpose memory (AK9822:address "1" -"127", AK9824:address "1" -"255"). The CALL
instruction is composed by the op-code and the address.
When the CALL instruction is executed at the normal mode, the D/A converter output of A0 is set by
the upper 8bit data (D15
～
D8) of the specified address and the output of A1 is set by the lower 8bit
data (D7
～
D0). The CALL instruction is not executed at the power down mode.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AK9824M | Aluminum Snap-In Capacitor; Capacitance: 270uF; Voltage: 160V; Case Size: 20x25 mm; Packaging: Bulk |
| AKA-0025 | Delay Line |
| AKA-0025S | Delay Line |
| AKA-0030 | Delay Line |
| AKA-0030S | Delay Line |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AK9824M | 制造商:AKM 制造商全稱:AKM 功能描述:2K / 4Kbit EEPROM with 2ch 8bit D/A Converter |
| AK982M | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:EEPROM |
| AK9844 | 制造商:AKM 制造商全稱:AKM 功能描述:4Kbit EEPROM with 4ch 8bit D/A Converter |
| AK9844A | 制造商:AKM 制造商全稱:AKM 功能描述:4Kbit EEPROM with 4ch 8bit D/A Converter |
| AK9844AV | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:16pin TSSOP |
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