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NTE1581

Integrated Circuit CMOS, Frequency Divider/Counter for VCR

NTE Electronics 

Electrical Characteristics: (TA = +25°C, VDD = 6.5V, VSS = 0V, fIN = 4.5MHz unless otherwise specified)

Parameter

Symbol

Test Conditions

Min Typ Max Unit

Operational Supply Voltage

Supply Current

High−Level Input Voltage

Low−Level Input Voltage

High−Level Output Voltage

Low−Level Output Voltage

High−Level Output Current

Low−Level Output Current

Pull−Up Resistance

N. RESET Inputs

VDD TA = −30° to +70°C

4.75

− 8.5 V

IDD N. RESET Input/Output Open

−

− 5 mA

VIH

VDD to 0.5 − − V

VIL

−

− 0.5 V

VOH

VDD to 0.5 − − V

VOL

−

− 0.5 V

IOH VD = VSS

−2

− − mA

IOL VO = VDD

2

− − mA

−

20 − kΩ

RI

−

20 − kΩ

Oscillation Input Amplitude Voltage

Max. Operating Frequency

VI

fMAX

VDD = 4.75V

0.3

− − VPP

5.5

− − MHz

Pin Connection Diagram

Divided Freq Output 1

VSS 2

Freq Dividing Ratio 3

Select Input

Reset Input RESET 4

8 VDD

7 Tuner Shaped

Waveform Output

6 OSC Output

5 OSC Input

8

5

.256 (6.52) Max

1

4

.393 (10.0)

Max

.150

(3.81)

.300

(7.62)

.100 (2.54)

.300 (7.62)

.070 (1.77) Min

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