CDP1854A datasheet(9/12 Pages) INTERSIL

Part #	CDP1854A

Description	High Reliability CMOS Programmable Universal Asynchronous Receiver/Transmitter (UART)

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Manufacturer	INTERSIL [Intersil Corporation]

Direct Link	http://www.intersil.com/cda/home

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9

Dynamic Electrical Specifications tR, tF = 15ns, VIH = VDD, VIL = VSS, CL = 100pF, (See Figure 6)

PARAMETER

VDD

(V)

LIMITS

UNITS

-55oC, +25oC+125oC

MIN

MAX

MIN

MAX

TRANSMITTER TIMING - MODE 0

Clock Period

tCC

5

240

-

280

-

ns

10

120

-

145

-

ns

Pulse Width

Clock Low Level

tCL

5

105

-

125

-

ns

10

55

-

65

-

ns

Clock High Level

tCH

5

135

-

155

-

ns

10

65

-

80

-

ns

THRL

tTHTH

5

140

-

165

-

ns

10

80

-

85

-

ns

Setup Time

THRL to Clock

tTHC

5

205

-

235

-

ns

10

120

-

140

-

ns

Data to THRL

tDT

525

-

30

-

ns

10

20

-

25

-

ns

Hold Time

Data after THRL

tTD

560

-

95

-

ns

10

45

-

75

-

ns

Propagation Delay Time

Clock to Data Start Bit

tCD

5

-

435

-

505

ns

10

-

205

-

235

ns

Clock to THRE

tCT

5

-

345

-

420

ns

10

-

175

-

200

ns

THRL to THRE

tTTHR

5

-

275

-

325

ns

10

-

145

-

165

ns

Clock to TSRE

tTTS

5

-

345

-

405

ns

10

-

165

-

190

ns

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