Intersil Corporation CDP1824C, CDP1824 Datasheet

CDP1824,

CDP1824C

March 1997

Features

• Fast Access Time

= 5V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 710ns

-V

DD

-V

= 10V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 320ns

DD

• No Precharge or Clock Required

Description

The CDP1824 and CDP1824C are 32-word x 8-bit fully static
CMOS random-access memories for use in CDP-1800
series microprocessor systems. These parts are compatible
with the CDP1802 microprocessor and will interface directly
without additional components.

32-Word x 8-Bit Static RAM

The CDP1824 is fully decoded and does not require a pre­charge or clocking signal for proper operation. It has
common input and output and is operated from a single
voltage supply. The

MRD signal (output disable control)
enables the three-state output drivers, and overrides the
MWR signal. A CS input is provided for memory expansion.

The CDP1824C is functionally identical to the CDP1824.
The CDP1824 has an operating range of 4V to 10.5V, and
the CDP1824C has an operating voltage range of 4V to

6.5V. The CDP1824 and CDP1824C are supplied in 18 lead
hermetic dual-in-line ceramic packages (D suffix), and in 18
lead dual-in-line plastic packages (E suffix).

Ordering Information

5V 10V PACKAGE TEMPERATURE RANGE PKG. NO.

CDP1824CE CDP1824E PDIP -40oC to +85oC E18.3
CDP1824CEX CDP1824EX Burn-In E18.3
CDP1824CD CDP1824D SBDIP -40oC to +85oC D18.3

Pinout

CDP1824, CDP1824C (PDIP, SBDIP)

TOP VIEW

1

MA4
MA3

2

MA2

3

MA1

4

MA0

5

BUS 7

6

BUS 6

7

BUS 5

8

V

9

SS

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

| Copyright © Intersil Corporation 1999

18

V

DD

17

MWR

16

MRD

15

CS

14

BUS 0

13

BUS 1

12

BUS 2
BUS 3

11
10

BUS 4

FUNCTION CS MRD MWR DATA PINS STATUS

READ 0 0 X Output: High/Low Dependent

WRITE 0 1 0 Input: Output Disabled
Not

Selected
Standby 0 1 1 Output Disabled:

Logic 1 = High Logic 0 = Low X = Don’t Care

6-37

OPERATIONAL MODES

on Data

1 X X Output Disabled:

High-Impedance State

High-Impedance State

File Number 1103.2

CDP1824, CDP1824C

Absolute Maximum Ratings Thermal Information

DC Supply Voltage Range, (VDD)

(All Voltages Referenced to VSS Terminal)

CDP1824 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to +11V

CDP1824C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to +7V

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

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

Operating Temperature Range (TA)

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

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

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

SBDIP Package. . . . . . . . . . . . . . . . . . 75 20

PDIP Package. . . . . . . . . . . . . . . . . . . 75 N/A

Storage Temperature Range (T
Lead Temperature (During Soldering)

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

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

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

STG

Recommended Operating Conditions At T

= Full Package Temperature Range.F or maxim um reliability, operating conditions

A

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

CONDITION LIMITS

CDP1824D CDP1824CD

PARAMETER

MIN MAX MIN MAX

UNITSVDD (V)

Supply Voltage Range - 4 10.5 4 6.5 V
Recommended Input Voltage Range - V

SS

V

DD

V

SS

V

DD

Input Signal Rise or Fall Time (Note 1) 5 - 5 - 5 µs
tR, t

F

10 - 2 - - µs

NOTE:

1. Input signal rise or fall times longer than these maxima can cause loss of stored data in either the selected or deselected mode.

Static Electrical Specifications At T

= -40oC to +85oC, Except as Noted:

A

CONDITIONS LIMITS

CDP1824 CDP1824C

PARAMETER SYMBOL

Quiescent Device
Current

Output Low (Sink)
Current

Output High (Source)
Current

Output Voltage
Low-Level

Output Voltage
High-Level

Input Low Voltage V

V

O

(V)

I

DD

- - 5 - 25 50 - 100 200 µA

- - 10 - 250 500 - - - µA

I

OL

0.4 0, 5 5 1.8 2.2 - 1.8 2.2 - mA

0.5 0, 10 10 3.6 4.5 - - - - mA

I

OH

4.6 0, 5 5 -0.9 -1.1 - -0.9 -1.1 - mA

9.5 0, 10 10 -1.8 -2.2 - - - - mA

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

V

(V)

V

IN

DD

(V)

MIN

(NOTE 1)

TYP MAX MIN

(NOTE 1)

TYP MAX

1.9 - 10 - - 3 - - - V

Input High Voltage V

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

IH

1.9 - 10 7 - - - - - V

Input Leakage Current I

Operating Current
(Note 2)

I

DD1

IN

Any

Input

0, 5 5 - ± 0.1 ±1-± 0.1 ± 1 µA

0, 10 10 - ± 0.1 ± 1- - -µA

- 0, 5 5 - 4 8 - 4 8 mA

- 0, 10 10 - 8 16 - - - mA

V

UNITS

6-38