CDP1822_1 datasheet(4/9 Pages) INTERSIL

4 / 9 page

NOTES:

1. Time required by a limit device to allow for indicated function.

2. Typical values are for TA = 25

oC and nominal V

DD.

Dynamic Electrical Specifications At TA + -40 to +85

oC, V

DD ±5%, Input t R, t F = 20ns, VIH = 0.7 VDD, VIL = 0.3 VDD,

CL = 100 pF (Continued)

PARAMETER

TEST

CONDITIONS

LIMITS

UNITS

VDD

(V)

CD1822

CDP1822C

(NOTE

MIN

(NOTE 2)

TYP

MAX

(NOTE 1)

MIN

(NOTE 2)

TYP

MAX

tDOA1

tDOA2

tDOH1

tRC

tDOH3

tAA

DATA OUT

VALID

HIGH

IMPEDANCE

HIGH

IMPEDANCE

CHIP-SELECT 1

A0 - A7

CHIP-SELECT 2

OUTPUT DISABLE

READ/WRITE

DATA OUT

tDOH2

tDOA3

FIGURE 1. READ CYCLE TIMING WAVEFORMS

Dynamic Electrical Specifications At TA + -40 to +85oC, VDD ±5%, Input tR, tF = 20ns, VIH = 0.7 VDD, VIL = 0.3 VDD,

CL = 100 pF.

PARAMETER

TEST

CONDITIONS

LIMITS

UNITS

CD1822

CDP1822C

VDD

(V)

(NOTE

MIN

(NOTE 2)

TYP

MAX

(NOTE 1)

MIN

(NOTE 2)

TYP

MAX

Read Cycle Times (Figure 2)

Write Cycle

tWC

500

300

Address Setup

tAS

200

110

Write Recovery

tWR

-50

-ns

Write Width

tWRW

250

150

CDP1822, CDP1822C

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