COPCJ842 datasheet(6/35 Pages) NSC

Part #	COPCJ842

Description	8-Bit CMOS ROM Based Microcontrollers with 1k or 2k Memory, Comparator and Brown Out Detector

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Manufacturer	NSC [National Semiconductor (TI)]

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AC Electrical Characteristics

−40˚C

≤ T

A ≤ +85˚C unless otherwise specified

Parameter

Conditions

Min

Typ

Max

Units

Instruction Cycle Time (tc)

Crystal/Resonator

4.5V

≤ V

CC ≤ 6.0V

1

DC

µs

2.5V

≤ V

CC ≤ 4.5V

2.5

DC

µs

R/C Oscillator

4.5V

≤ V

CC ≤ 6.0V

3

DC

µs

COP840CJ

2

DC

µs

2.5V

≤ V

CC ≤ 4.5V

7.5

DC

µs

COP840CJ

5

DC

µs

V

CC Rise Time when Using Brown

Out

V

CC = 0Vto6V

50

µs

Frequency at Brown Out Reset

4

MHz

CKI Frequency For Modular Output

4

MHz

CKI Clock Duty Cycle (Note 6)

fr = Max

40

60

%

Rise Time (Note 6)

fr = 10 MHz ext. Clock

12

ns

Fall Time (Note 6)

fr = 10 MHz ext. Clock

8

ns

Inputs

t

Setup

4.5V

≤ V

CC ≤ 6.0V

200

ns

2.5V

≤ V

CC ≤ 4.5V

500

ns

t

Hold

4.5V

≤ V

CC ≤ 6.0V

60

ns

2.5V

≤ V

CC ≤ 4.5V

150

ns

Output Propagation Delay

R

L = 2.2k, CL = 100 pF

t

PD1,tPD0

SO, SK

4.5V

≤ V

CC ≤ 6.0V

0.7

µs

2.5V

≤ V

CC ≤ 4.5V

1.75

µs

All Others

4.5V

≤ V

CC ≤ 6.0V

1

µs

2.5V

≤ V

CC ≤ 4.5V

5

µs

Input Pulse Width

Interrupt Input High Time

1

tc

Interrupt Input Low Time

1

tc

Timer Input High Time

1

tc

Timer Input Low Time

1

tc

MICROWIRE Setup Time (t

µWS)20

ns

MICROWIRE Hold Time (t

µWH)56

ns

MICROWIRE Output

220

ns

Propagation Delay (t

µPD)

Reset Pulse Width

1.0

µs

Note 6: Parameter characterized but not production tested.

DS011208-2

FIGURE 3. MICROWIRE/PLUS Timing

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COPCJ842 Datasheet(PDF) 6 Page - National Semiconductor (TI)

COPCJ842 Datasheet(HTML) 6 Page - National Semiconductor (TI)

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