CDP1831 Datasheet Preview

CDP1831 Datasheet

512-Word x 8-Bit Static Read-Only Memory

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Read-Only Memorle. (ROM.) _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __

CDP1831, CDP1831C

MA7

MA6

MA5

MA4

MA3

MA2

MAl

MAO

BUSO

BUSI

BUS2

vss

I 24

p 23

3 22

4 21

5 20

6 19

7 18

~ 17

9 16

10 15

II 14

12 13

TOP VIEW

Voo

TPA

CSI

CS2

1m!

CEO

BUS7

BUSS

BUS5

BUS4

BUS3

NC • NO CONNECTION

92CS-27584R2

Terminal Assignment

512-Word X 8-Bit Static

Read-Only Memory

Features:

• Compatible with CDP1800 and CD4000-series devices

• On-chip address latch

• Interfaces with CDP1802 microprocessor without

additional components

• Optional programmable location within 64K

memory space

• Three-state outputs

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The RCA-COP 1831 and COP1831C types

are 4096-bit mask-programmable CMOS

read-only memories organized as 512

words x 8 bits and are com pletely static; no

clocks required. They will directly interface

with COP1800-series micro-processors

without additional components.

The COP1831 and COP1831C respond to

16-bit address multiplexed on 8 address

lines. Address latches are provided on-chip

to store the 8 most significant bits of the

16-bit address. By mask option, this ROM

can be programmed to operate in any 512-

word block within 64K memory space. The

polarity of the high address strobe (TPA),

and CS1 and CS2 are user mask-program-

The Chip-Enable output Signal (CEO) goes

"high" when the device is selected, and is

intended for use an an output disable con-

trol for RAM memory in a microprocessor

system.

The COP 1831C is functionally identical to

the COP1831. The COP1831 has an operat-

ing voltage range of 4 to 10.5 volts, and the

COP1831 C has an operating voltage range

of 4 to 6.5 volts.

The COP1831 and COP1831C types are

supplied in 24-lead hermetic dual-ln-Iine,

side-brazed ceramic packages (0 suffix)

and in 24-lead dual-In-line plastic packages

(E suffix). The COP1831C Is also available

In chip form (H suffix).

BUS7

BUS6

BUS5

BUS4

BUS3

BUS2

BUSI

BUSO

f!!!-----''---.... CEO

Fig. 1 - Functional diagram.

92CS-21~81R3

File Number 1104

728 _________________________________________________________

CDP1831 Datasheet Preview

CDP1831 Datasheet

512-Word x 8-Bit Static Read-Only Memory

No Preview Available !

Read-Only Memories (ROMs)

CDP1831, CDP1831C

MAXIMUM RATINGS, Absolute-Maximum Values:

DC SUPPLY-VOLTAGE RANGE, (Voo)

(All voltage values referenced to Vss terminal)

CDP1831 ..................................................................... -0.5 to + 11 V

CDPI831C ..................................................................... -05 to +7 V

INPUT VOLTAGE RANGE, ALL INPUTS.................

. .-0.5 to Voo +0 5 V

DC INPUT CURRENT, ANY ONE INPUT ................................................. ± 10 mA

POWER DISSIPATION PER PACKAGE (Po):

For TA = -40 to +60'C (PACKAGE TYPE E) ........................................... 500 mW

For TA = +60 to +85'C (PACKAGE TYPE E) ............ Derate Linearly at 12 mW/'C to 200 mW

For TA = -55 to + 100'C (PACKAGE TYPE D) .......................................... 500 mW

For T. = +100 to + 125'C (PACKAGE TYPE D) ......... Derate Linearly at 12 mWI'C to 200 mW

DEVICE DISSIPATION PER OUTPUT TRANSISTOR

FOR TA = FULL PACKAGE-TEMPERATURE RANGE ................................... 100 mW

OPERATING-TEMPERATURE RANGE (T.)

PACKAGE TYPE 0 ............................................................. -55 to + 125'C

PACKAGE TYPE E .............................................................. -40 to +B5'C

STORAGE TEMPERATURE RANGE (T".) ......................................... -65 to + 150'C

LEAD TEMPERATURE (DURING SOLDERING)

At distance 1/16 ± 1/32 inch (1 59 ± 0 79 mm) from case for 10 s max ................... +265'C

OPERATING CONDITIONS at TA = Full Package-Temperature Range. For maximum reliability,

operating conditions should be selected so that operation is always within the following ranges'

CHARACTERISTIC

DC Operating Voltage Range

Input Voltage Range

LIMITS

CDP1831

CDP1831C

Min, Max, Min, I Max.

I4 10.5 4

6.5

IVss Voo Vss Voo

UNITS

STATIC ELECTRICAL CHARACTERISTICS at TA = -40 to +85'C Except as noted

CONDITIONS

LIMITS

CHARACTERISTIC Vo V,N Voo

CDP1831

CDP1831C UNITS

QUiescent DeVice

Current, 100

(V) (V) (V) Min. Typ." Max. Min. Typ." Max.

- 5 5 - 0.01 50 - 0.02 200

- 10 10 -

1 200 - -

IlA

Output Low Drive

0.4 0,5 5

(Sink) Current, 10L 0.5 0,10 10

0.55

1.30

- 0.55 -

-- -

Output High Drive

(Source) Current, 4.6 0,5 5 -0.35 -

- 0.35 -

iOH

9.5 0,10 10 -0.65 -

Output Voltage

Low-Level, VOL

Output Voltage

High Level, VOH

Input Low Voltage,

V'L

Input High Voltage,

V,H

- 0,5

- 0,10

- 0,5

- 0,10

0.5,4.5 -

1,9 -

0.5,4.5 -

1,9 -

4.9

9.9

3.5

0 0.1 -

0 0.1 - -

5 - 49 5

10 - -

- 1.5 - -

- 3- -

- - 3.5 -

- -- -

0.1

1.5

Input Leakage

Current, liN

Any 0,5 5 - ±10 ±1 - - ±1

Input 0,10 10 -

±10 ±2 -

3-State Output

Leakage Current, 0,5 0,5 5 - ±10-4 ±1 - - ±1

lOUT

0,10 0,10 10 -

±10 4 ±2 -

Input

Capacitance, C,n -

5 7.5 -

5 7.5 pF

Output

Capacitance, Coul -

10 15 -

10 15

Operating Current, -

0,5 5

loo,t

- 0,10 10

5 10 -

5 10 mA

10 20 -

'TYPical values are for "one" T. = 25' C

and nominal Voo

tOutputs open-circuited, cycle time - 2 5 /1s

_________________________________________________________________ 727

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CDP1831 Datasheet

512-Word x 8-Bit Static Read-Only Memory

CDP1831 Datasheet

512-Word x 8-Bit Static Read-Only Memory

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