NTE6821 データシートの表示（PDF） - NTE Electronics

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NTE6821

Integrated Circuit Peripheral Interface Adapter (PIA), NMOS, 1MHz

NTE Electronics 

Electrical Characteristics: (VCC = 5V ±5%, VSS = 0, TA = 0° to +70⁄C unless otherwise specified)

Parameter

Symbol

Test Conditions

Min Typ Max Unit

Bus Control Inputs (R/W, Enable, Reset, RS0, RS1, CS0, CS1, CS2)

Input High Voltage

Input Low Voltage

Input Leakage Current

Capacitance

Interrupt Outputs (IRQA, IRQB)

VIH

VSS +2.0 –

VCC

V

VIL

VSS –0.3 – VSS +0.8 V

Iin Vin = 0 to 5.25V

–

1.0

2.5

µA

Cin Vin = 0, TA = +25°C, f = 1MHz

–

–

7.5

pF

Output Low Voltage

VOL ILoad = 3.2mA

–

Output Leakage Current (Off State)

ILOH VOH = 2.4V

–

Capacitance

Cout Vin = 0, TA = +25°C, f = 1MHz

–

Data Bus (D0 – D7)

– VSS +0.4 V

1.0

10

µA

–

5.0

pF

Input High Voltage

VIH

VSS +2.0 –

VCC

V

Input Low Voltage

VIL

VSS –0.3 – VSS +0.8 V

Three–State (Off State) Input Current

ITSI Vin = 0.4 to 2.4V

–

2.0

10

µA

Output High Voltage

VOH ILoad = –205µA

VSS +2.4 –

–

V

Output Low Voltage

VOL ILoad = 1.6mA

–

– VSS +0.4 V

Capacitance

Cin Vin = 0, TA = +25°C, f = 1MHz

–

–

12.5 pF

Peripheral Bus (PA0 – PA7, PB0 – PB7, CA1, CA2, CB1, CB2)

Input Leakage Current

R/W, Reset, RS0, RS1, CS0,

CS1, CS2, CA1, CB1, Enable

Iin

Vin = 0 to 5.25V

–

1.0

2.5

µA

Three–State (Off State) Input Current

PB0 – PB7, CB2

Input High Current

PA0 – PA7, CA2

Darlington Drive Current

PB0 – PB7, CB2

Input Low Current

PA0 – PA7, CA2

Output High Voltage

PA0 – PA7, PB0 – PB7, CA2, CB2

PA0 – PA7, CA2

Output Low Voltage

Capacitance

Power Requirements

ITSI

Vin = 0.4 to 2.4V

–

2.0

10

µA

IIH

VIH = 2.4V

–200 –400

–

µA

IOH

VO = 1.5V

–1.0

–

–10 mA

IIL

VIL = 0.4V

–

–1.3 –2.4 mA

VOH

ILoad = –200µA

VSS +2.4 –

–

V

ILoad = 10µA

VCC –1.0 –

–

V

VOL ILoad = 3.2mA

–

– VSS +0.4 V

Cin Vin = 0, TA = +25°C, f = 1MHz

–

–

10

pF

Power Dissipation

PD

–

–

550 mW

Bus Timing Characteristics: (VCC = 5V ±5%, VSS = 0, TA = 0° to +70°C unless otherwise specified)

Parameter

Symbol

Test Conditions

Min Typ Max Unit

Enable Cycle Time

tcycE

1000 –

– ns

Enable Pulse Width, High

Enable Pulse Width, Low

Enable Pulse Rise and Fall Times

PWEH

PWEL

tEr, tEf

450 –

430 –

–

–

– ns

– ns

25 ns

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