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ML2258 数据表(PDF) 2 Page - Micro Linear Corporation |
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ML2258 数据表(HTML) 2 Page - Micro Linear Corporation |
2 / 12 page ML2258 2 PIN CONFIGURATION ML2258 28-Pin DIP (P28) ML2258 28-Pin PCC (Q28) IN3 IN4 IN5 IN6 IN7 START EOC DB3 OE CLK VCC +VREF GND DB1 IN2 IN1 IN0 ADDR0 ADDR1 ADDR2 ALE DB7 DB6 DB5 DB4 DB0 –VREF DB2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 28 27 26 25 24 23 22 21 20 19 18 17 16 15 TOP VIEW PIN DESCRIPTION PIN# NAME FUNCTION 1 IN3 Analog input 3. 2 IN4 Analog input 4. 3 IN5 Analog input 5. 4 IN6 Analog input 6. 5 IN7 Analog input 7. 6 START Start of conversion. Active high digital input pulse initiates conversion. 7 EOC End of conversion. This output goes low after a START pulse occurs, stays low for the entire A/D conversion, and goes high after conversion is completed. Data on DB0–DB7 is valid on rising edge of EOC and stays valid until next EOC rising edge. 8 DB3 Data output 3. 9 OE Output enable input. When OE = 0, DB0–DB7 are in high impedance state; OE = 1, DB0–DB7 are active outputs. 10 CLK Clock. Clock input provides timing for A/D converter, S/H, and digital interface. 11 VCC Positive supply. 5V ± 10%. 12 +VREF Positive reference voltage. PIN# NAME FUNCTION 13 GND Ground. 0V, all analog and digital inputs or outputs are reference to this point. 14 DB1 Data output 1. 15 DB2 Data output 2. 16 –VREF Negative reference voltage. 17 DB0 Data output 0. 18 DB4 Data output 4. 19 DB5 Data output 5. 20 DB6 Data output 6. 21 DB7 Data output 7. 22 ALE Address latch enable. Input to latch in the digital address (ADDR2–0) on the rising edge of the multiplexer. 23 ADDR0 Address input 0 to multiplexer. Digital input for selecting analog input. 24 ADDR1 Address input 1 to multiplexer. Digital input for selecting analog input. 25 ADDR2 Address input 2 to multiplexer. Digital input for selecting analog input. 26 IN0 Analog input 0. 27 IN1 Analog input 1. 28 IN2 Analog input 2. ADDR0 ADDR1 ADDR2 ALE DB7 DB6 DB5 IN7 START EOC DB3 OE CLK VCC 12 13 14 15 16 17 18 5 6 7 8 9 10 11 43 2 1 28 25 24 23 22 21 20 19 27 26 TOP VIEW |
类似零件编号 - ML2258 |
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类似说明 - ML2258 |
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