Intersil Corporation CDP1882C, CDP1882, CDP1881C Datasheet

March 1997

CDP1881C,

CDP1882, CDP1882C

CMOS 6-Bit Latch

and Decoder Memory Interfaces

Features

• Performs Memory Address Latch and Decoder
Functions Multiplexed or Non-Multiplexed

• Decodes Up to 16K Bytes of Memory

• Interfaces Directly with CDP1800-Series Microproces­sors at Maximum Clock Frequency

• Can Replace CDP1866 and CDP1867 (Upward Speed
and Function Capability)

Ordering Information

TEMP.

RANGE

PACKAGE 5V 10V

PDIP CDP1881CE - -40 to +85 E20.3
PDIP CDP1882CE - -40 to +85 E18.3
PDIP

Burn-In

SBDIP - CDP1882D -40 to +85 D18.3

CDP1882CEX - -40 to +85 E18.3

(oC)

PKG.

NO.

Description

The CDP1881C, CDP1882 and CDP1882C are CMOS 6-bit
memory latch and decoder circuits intended for use in
CDP1800 series microprocessor systems. They can inter­face directly with the multiplexed address bus of this system
at maximum clock frequency, and up to four 4K x 8-bit mem­ories to provide a 16K byte memory system. With four 2K x
8-bit memories an 8K byte system can be decoded.

The devices are also compatible with non-multiplexed
address bus microprocessors. By connecting the clock input
to V

, the latches are in the data-following mode and the

DD

decoded outputs can be used in general purpose memory­system applications.

The CDP1881C, CDP1882 and CDP1882C are intended for
use with 2K or 4K byte RAMs and are identical except that in
the CDP1882

The CDP1882 is functionally identical to the CDP1882C. It
differs in that the CDP1882 has recommended operating
voltage range of 4V to 10.5V and the C version has a recom­mended operating voltage range of 4V to 6.5V.

The CDP1881C, CDP1882 and CDP1882C are supplied in
20 lead and 18 lead packages, respectively. The
CDP1881C is supplied only in a dual-in-line plastic pack­age (E suffix). The CDP1882 is supplied in dual-in-line,
hermetic side-brazed ceramic (D suffix) and in plastic (E
suffix) packages.

MWR and MRD are excluded.

Pinouts

CDP1881C

(PDIP)

TOP VIEW

MA5
MA4
MA3
MA2
MA1
MA0

MRD

MWR

V

1
2
3
4
5
6
7
8
9

10

SS

| Copyright © Intersil Corporation 1999

CLOCK

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
http://www.intersil.com or 407-727-9207

20

V

DD

19

A8

18

A9

17

A10

16

A11

15

CS0

14

CS1

13

CS2

12

CS3
CE

11

4-1

CDP1882, CDP1882C

(PDIP, CERDIP)

TOP VIEW

CLOCK

MA5
MA4
MA3
MA2
MA1
MA0

CE

V

1
2
3
4
5
6
7
8
9

SS

18

V

DD

17

A8

16

A9

15

A10

14

A11

13

CS0

12

CS1

11

CS2

10

CS3

File Number 1367.2

CDP1881C, CDP1882, CDP1882C

Absolute Maximum Ratings Thermal Information

DC Supply Voltage Range, (VDD)

(All Voltages Referenced to VSS Terminal)

CDP1882 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to +11V

CDP1881C and CDP1882C. . . . . . . . . . . . . . . . . . . -0.5V to +7V

Input Voltage Range, All Inputs . . . . . . . . . . . . . -0.5V to VDD +0.5V

DC Input Current, Any One Input. . . . . . . . . . . . . . . . . . . . . . . . .±10mA

CAUTION: Stresses above those listed in the “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and opera­tion of the device at these or any other conditions above those indicated in the operation section of this specification is not implied.

Thermal Resistance (Typical) θJA (oC/W) θJC (oC/W)

18 Lead PDIP . . . . . . . . . . . . . . . . . . . 85 N/A

20 Lead PDIP . . . . . . . . . . . . . . . . . . . 80 N/A

SBDIP Package. . . . . . . . . . . . . . . . . . 85 22

Device Dissipation Per Output Transistor

TA = Full Package Temperature Range

(All Package Types). . . . . . . . . . . . . . . . . . . . . . . . . . . . . .100mW

Operating Temperature Range (TA)

Package Type D. . . . . . . . . . . . . . . . . . . . . . . . . .-55oC to +125oC

Package Type E. . . . . . . . . . . . . . . . . . . . . . . . . . .-40oC to +85oC

Storage Temperature Range (T

) . . . . . . . . . . . .-65oC to +150oC

STG

Lead Temperature (During Soldering)

At distance 1/16 ±1/32 In. (1.59 ± 0.79mm)

from case for 10s max. . . . . . . . . . . . . . . . . . . . . . . . . . . . +265oC

Recommended Operating Conditions At T

= Full Package Temperature Range. For maximum reliability, operating conditions

A

should be selected so that operation is always within the following ranges:

CDP1882 CDP1881C, CDP1882C

PARAMETER

DC Operating Voltage Range 4 10.5 4 6.5 V

Input Voltage Range V

Static Electrical Specifications At T

= -40oC to +85oC, VDD± 5%, Except as Noted:

A

SS

V

DD

V

SS

V

DD

CONDITIONS CDP1882 CDP1881C, CDP1882C

PARAMETER SYMBOL

Quiescent Device

V

O

(V)

I

DD

- 0, 5 5 - 1 10 - 5 50 µA

V
(V)

V

IN

DD

(V) MIN

(NOTE 1)

TYP MAX MIN

(NOTE 1)

TYP MAX

Current

- 0, 10 10 - 10 100 - - - µA

Output Low Drive

I

OL

0.4 0, 5 5 1.6 3.2 - 1.6 3.2 - mA

(Sink) Current

0.5 0, 10 10 3.2 6.4 - - - - mA

Output High Drive

I

OH

4.6 0, 5 5 -1.15 -2.3 - -1.15 -2.3 - mA

(Source) Current

9.5 0, 10 10 -2.3 -4.6 - - - - mA

UNITSMIN MAX MIN MAX

V

UNITS

Output Voltage
Low-Level (Note 2)

Output Voltage
High-Level (Note 2)

Input Low Voltage V

Input High Voltage V

V

OL

- 0, 5 5 - 0 0.1 - 0 0.1 V

- 0, 10 10 - 0 0.1 - - - V

V

OH

- 0, 5 5 4.9 5 - 4.9 5 - V

- 0, 10 10 9.9 10 - - - - V

0.5, 4.5 - 5 - - 1.5 - - 1.5 V

IL

1, 9 - 10 - - 3 - - - V

0.5, 9.5 - 5 3.5 - - 3.5 - - V

IH

1, 9 - 10 7 - - - - - V

4-2

CDP1881C, CDP1882, CDP1882C

Static Electrical Specifications At T

= -40oC to +85oC, VDD± 5%, Except as Noted: (Continued)

A

CONDITIONS CDP1882 CDP1881C, CDP1882C

PARAMETER SYMBOL

Input Leakage Current I

V

O

(V)

IN

Any

V
(V)

V

IN

DD

(V) MIN

(NOTE 1)

TYP MAX MIN

(NOTE 1)

TYP MAX

UNITS

0, 5 5 - - ±1- - ±1 µA

Input

0, 10 10 - - ±2- - -µA

Operating Current

I

DD1

0, 5 0, 5 5 - - 2 - - 2 mA

(Note 2)

0, 10 0, 10 10 - - 4 - - - mA

Input Capacitance C

Output Capacitance C

Minimum Data

V

IN

OUT

DR

- - - - 5 7.5 - 5 7.5 pF

- - - - 10 15 - 10 15 pF

VDD = V

DR

- 2 2.4 - 2 2.4 V

Retention Voltage

Data Retention Current I

DR

VDD = 2.4V - 0.01 1 - 0.5 5 µA

NOTES:

1. Typical values are for TA = +25oC.

2. IOL = IOH = 1µA.

3. Operating current measured at 200kHz for VDD = 5V and 400kHz for VDD = 10V, with outputs open circuits (equivalent to typical CDP1800
system at 3.2MHz, 5V; and 6.4MHz, 10V).

MA0

MA1

MA2

MA3

MA4

MA5

CLOCK

MRD

MWR

CE

7

6

5

4

3

2

1

8

9

11

DCQ

DCQ

DCQ

DCQ

DCQ

Q

DCQ

Q

V
V

DD

SS

19

A8

18

A9

17

A10

16

A11

15

CS0

14

CS1

13

CS2

12

CS3

20

=

10

=

CLOCK

MA0

MA1

MA2

MA3

MA4

MA5

CE

7

6

5

4

3

2

1

8

DCQ

DCQ

DCQ

DCQ

DCQ

DCQ

17

A8

A9

16

15

A10

14

A11

13

CS0

Q

12

CS1

Q

V

V

DD

11

CS2

10

CS3

18

=

9

=

SS

FIGURE 1. FUNCTIONAL DIAGRAM FOR THE CDP1881C FIGURE 2. FUNCTIONAL DIAGRAM FOR THE CDP1882,

CDP1882C

4-3